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- Core Frameworks 

- Add support for a "resource managed strongly uncachable ioremap" call
    - Provide a collection of MFD helper macros
    - Remove mfd_clone_cell() from MFD core
    - Add NULL de-reference protection in MFD core
    - Remove superfluous function fd_platform_add_cell() from MFD core
    - Honour Device Tree's request to disable a device
 
  - New Drivers
    - Add support for MediaTek MT6323 PMIC
 
  - New Device Support
    - Add support for Gemini Lake to Intel LPSS PCI
    - Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC CRC
    - Add support for PM{I}8950 to Qualcomm SPMI PMIC
    - Add support for U8420 to ST-Ericsson DB8500
    - Add support for Comet Lake PCH-H to Intel LPSS PCI
 
  - New Functionality
    - Add support for requested supply clocks; madera-core
 
  - Fix-ups
    - Lower interrupt priority; rk808
    - Use provided helpers (macros, group functions, defines); rk808,
 		ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
    - Only allocate IRQs on request; max77620
    - Use simplified API; arizona-core
    - Remove redundant and/or duplicated code; wm8998-tables, arizona, syscon
    - Device Tree binding fix-ups; madera, max77650, max77693
    - Remove mfd_cell->id abuse hack; cs5535-mfd
    - Remove only user of mfd_clone_cell(); cs5535-mfd
    - Make resources static; rohm-bd70528
 
  - Bug Fixes
    - Fix product ID for RK818; rk808
    - Fix Power Key; rk808
    - Fix booting on the BananaPi; mt6397-core
    - Endian fix-ups; twl.h
    - Fix static error checker warnings; ti_am335x_tscadc
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Merge tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Frameworks:
   - Add support for a "resource managed strongly uncachable ioremap"
     call
   - Provide a collection of MFD helper macros
   - Remove mfd_clone_cell() from MFD core
   - Add NULL de-reference protection in MFD core
   - Remove superfluous function fd_platform_add_cell() from MFD core
   - Honour Device Tree's request to disable a device

  New Drivers:
   - Add support for MediaTek MT6323 PMIC

  New Device Support:
   - Add support for Gemini Lake to Intel LPSS PCI
   - Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC
     CRC
   - Add support for PM{I}8950 to Qualcomm SPMI PMIC
   - Add support for U8420 to ST-Ericsson DB8500
   - Add support for Comet Lake PCH-H to Intel LPSS PCI

  New Functionality:
   - Add support for requested supply clocks; madera-core

  Fix-ups:
   - Lower interrupt priority; rk808
   - Use provided helpers (macros, group functions, defines); rk808,
     ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
   - Only allocate IRQs on request; max77620
   - Use simplified API; arizona-core
   - Remove redundant and/or duplicated code; wm8998-tables, arizona,
     syscon
   - Device Tree binding fix-ups; madera, max77650, max77693
   - Remove mfd_cell->id abuse hack; cs5535-mfd
   - Remove only user of mfd_clone_cell(); cs5535-mfd
   - Make resources static; rohm-bd70528

  Bug Fixes:
   - Fix product ID for RK818; rk808
   - Fix Power Key; rk808
   - Fix booting on the BananaPi; mt6397-core
   - Endian fix-ups; twl.h
   - Fix static error checker warnings; ti_am335x_tscadc"

* tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (47 commits)
  Revert "mfd: syscon: Set name of regmap_config"
  mfd: ti_am335x_tscadc: Fix static checker warning
  mfd: bd70528: Staticize bit value definitions
  mfd: mfd-core: Honour Device Tree's request to disable a child-device
  dt-bindings: mfd: max77693: Fix missing curly brace
  mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs
  mfd: db8500-prcmu: Support U8420-sysclk firmware
  dt-bindings: mfd: max77650: Convert the binding document to yaml
  mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add_device()
  mfd: mfd-core: Remove usage counting for .{en,dis}able() call-backs
  x86: olpc-xo1-sci: Remove invocation of MFD's .enable()/.disable() call-backs
  x86: olpc-xo1-pm: Remove invocation of MFD's .enable()/.disable() call-backs
  mfd: mfd-core: Remove mfd_clone_cell()
  mfd: mfd-core: Protect against NULL call-back function pointer
  mfd: cs5535-mfd: Register clients using their own dedicated MFD cell entries
  mfd: cs5535-mfd: Request shared IO regions centrally
  mfd: cs5535-mfd: Remove mfd_cell->id hack
  mfd: cs5535-mfd: Use PLATFORM_DEVID_* defines and tidy error message
  mfd: intel_soc_pmic_crc: Add "cht_crystal_cove_pmic" cell to CHT cells
  mfd: madera: Add support for requesting the supply clocks
  ...
This commit is contained in:
Linus Torvalds 2019-12-01 16:16:31 -08:00
parent 38edc3dff9 edfaeaf742
commit 37323918ca
45 changed files with 734 additions and 542 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/devicetree/bindings/mfd/madera.txt
View File

@ -67,6 +67,14 @@ Optional properties:
As defined in bindings/gpio.txt.
Although optional, it is strongly recommended to use a hardware reset
- clocks: Should reference the clocks supplied on MCLK1, MCLK2 and MCLK3
- clock-names: May contain up to three strings:
"mclk1" for the clock supplied on MCLK1, recommended to be a high
quality audio reference clock
"mclk2" for the clock supplied on MCLK2, required to be an always on
32k clock
"mclk3" for the clock supplied on MCLK3
- MICBIASx : Initial data for the MICBIAS regulators, as covered in
Documentation/devicetree/bindings/regulator/regulator.txt.
One for each MICBIAS generator (MICBIAS1, MICBIAS2, ...)

46
Documentation/devicetree/bindings/mfd/max77650.txt
View File

@ -1,46 +0,0 @@
MAX77650 ultra low-power PMIC from Maxim Integrated.
Required properties:
-------------------
- compatible: Must be "maxim,max77650"
- reg: I2C device address.
- interrupts: The interrupt on the parent the controller is
connected to.
- interrupt-controller: Marks the device node as an interrupt controller.
- #interrupt-cells: Must be <2>.
- gpio-controller: Marks the device node as a gpio controller.
- #gpio-cells: Must be <2>. The first cell is the pin number and
the second cell is used to specify the gpio active
state.
Optional properties:
--------------------
gpio-line-names: Single string containing the name of the GPIO line.
The GPIO-controller module is represented as part of the top-level PMIC
node. The device exposes a single GPIO line.
For device-tree bindings of other sub-modules (regulator, power supply,
LEDs and onkey) refer to the binding documents under the respective
sub-system directories.
For more details on GPIO bindings, please refer to the generic GPIO DT
binding document <devicetree/bindings/gpio/gpio.txt>.
Example:
--------
pmic@48 {
compatible = "maxim,max77650";
reg = <0x48>;
interrupt-controller;
interrupt-parent = <&gpio2>;
#interrupt-cells = <2>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "max77650-charger";
};

149
Documentation/devicetree/bindings/mfd/max77650.yaml Normal file
View File

@ -0,0 +1,149 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/max77650.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MAX77650 ultra low-power PMIC from Maxim Integrated.
maintainers:
- Bartosz Golaszewski <bgolaszewski@baylibre.com>
description: |
MAX77650 is an ultra-low power PMIC providing battery charging and power
supply for low-power IoT and wearable applications.
The GPIO-controller module is represented as part of the top-level PMIC
node. The device exposes a single GPIO line.
For device-tree bindings of other sub-modules (regulator, power supply,
LEDs and onkey) refer to the binding documents under the respective
sub-system directories.
properties:
compatible:
const: maxim,max77650
reg:
description:
I2C device address.
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
description:
The first cell is the IRQ number, the second cell is the trigger type.
gpio-controller: true
"#gpio-cells":
const: 2
description:
The first cell is the pin number and the second cell is used to specify
the gpio active state.
gpio-line-names:
maxItems: 1
description:
Single string containing the name of the GPIO line.
regulators:
$ref: ../regulator/max77650-regulator.yaml
charger:
$ref: ../power/supply/max77650-charger.yaml
leds:
$ref: ../leds/leds-max77650.yaml
onkey:
$ref: ../input/max77650-onkey.yaml
required:
- compatible
- reg
- interrupts
- interrupt-controller
- "#interrupt-cells"
- gpio-controller
- "#gpio-cells"
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/linux-event-codes.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@48 {
compatible = "maxim,max77650";
reg = <0x48>;
interrupt-controller;
interrupt-parent = <&gpio2>;
#interrupt-cells = <2>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "max77650-charger";
regulators {
compatible = "maxim,max77650-regulator";
max77650_ldo: regulator@0 {
regulator-compatible = "ldo";
regulator-name = "max77650-ldo";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <2937500>;
};
max77650_sbb0: regulator@1 {
regulator-compatible = "sbb0";
regulator-name = "max77650-sbb0";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1587500>;
};
};
charger {
compatible = "maxim,max77650-charger";
input-voltage-min-microvolt = <4200000>;
input-current-limit-microamp = <285000>;
};
leds {
compatible = "maxim,max77650-led";
#address-cells = <1>;
#size-cells = <0>;
led@0 {
reg = <0>;
label = "blue:usr0";
};
led@1 {
reg = <1>;
label = "red:usr1";
linux,default-trigger = "heartbeat";
};
led@2 {
reg = <2>;
label = "green:usr2";
};
};
onkey {
compatible = "maxim,max77650-onkey";
linux,code = <KEY_END>;
maxim,onkey-slide;
};
};
};

1
Documentation/devicetree/bindings/mfd/max77693.txt
View File

@ -175,6 +175,7 @@ Example:
maxim,thermal-regulation-celsius = <75>;
maxim,battery-overcurrent-microamp = <3000000>;
maxim,charge-input-threshold-microvolt = <4300000>;
};
led {
compatible = "maxim,max77693-led";

2
Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt
View File

@ -29,6 +29,8 @@ Required properties:
"qcom,pm8916",
"qcom,pm8004",
"qcom,pm8909",
"qcom,pm8950",
"qcom,pmi8950",
"qcom,pm8998",
"qcom,pmi8998",
"qcom,pm8005",

29
Documentation/devicetree/bindings/rtc/rtc-mt6397.txt Normal file
View File

@ -0,0 +1,29 @@
Device-Tree bindings for MediaTek PMIC based RTC
MediaTek PMIC based RTC is an independent function of MediaTek PMIC that works
as a type of multi-function device (MFD). The RTC can be configured and set up
with PMIC wrapper bus which is a common resource shared with the other
functions found on the same PMIC.
For MediaTek PMIC MFD bindings, see:
../mfd/mt6397.txt
For MediaTek PMIC wrapper bus bindings, see:
../soc/mediatek/pwrap.txt
Required properties:
- compatible: Should be one of follows
"mediatek,mt6323-rtc": for MT6323 PMIC
"mediatek,mt6397-rtc": for MT6397 PMIC
Example:
pmic {
compatible = "mediatek,mt6323";
...
rtc {
compatible = "mediatek,mt6323-rtc";
};
};

1
Documentation/driver-api/driver-model/devres.rst
View File

@ -314,6 +314,7 @@ IOMAP
devm_ioport_unmap()
devm_ioremap()
devm_ioremap_nocache()
devm_ioremap_uc()
devm_ioremap_wc()
devm_ioremap_resource() : checks resource, requests memory region, ioremaps
devm_ioremap_resource_wc()

7
MAINTAINERS
View File

@ -10396,6 +10396,13 @@ S: Maintained
F: drivers/net/dsa/mt7530.*
F: net/dsa/tag_mtk.c
MEDIATEK BOARD LEVEL SHUTDOWN DRIVERS
M: Sean Wang <sean.wang@mediatek.com>
L: linux-pm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
F: drivers/power/reset/mt6323-poweroff.c
MEDIATEK JPEG DRIVER
M: Rick Chang <rick.chang@mediatek.com>
M: Bin Liu <bin.liu@mediatek.com>

2
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -84,6 +84,7 @@ static void __init ux500_init_irq(void)
struct resource r;
irqchip_init();
prcmu_early_init();
np = of_find_compatible_node(NULL, NULL, "stericsson,db8500-prcmu");
of_address_to_resource(np, 0, &r);
of_node_put(np);
@ -91,7 +92,6 @@ static void __init ux500_init_irq(void)
pr_err("could not find PRCMU base resource\n");
return;
}
prcmu_early_init(r.start, r.end-r.start);
ux500_pm_init(r.start, r.end-r.start);
/* Unlock before init */

1
arch/sparc/include/asm/io_64.h
View File

@ -407,6 +407,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
}
#define ioremap_nocache(X,Y) ioremap((X),(Y))
#define ioremap_uc(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))
#define ioremap_wt(X,Y) ioremap((X),(Y))

8
arch/x86/platform/olpc/olpc-xo1-pm.c
View File

@ -12,7 +12,6 @@
#include <linux/platform_device.h>
#include <linux/export.h>
#include <linux/pm.h>
#include <linux/mfd/core.h>
#include <linux/suspend.h>
#include <linux/olpc-ec.h>
@ -120,16 +119,11 @@ static const struct platform_suspend_ops xo1_suspend_ops = {
static int xo1_pm_probe(struct platform_device *pdev)
{
struct resource *res;
int err;
/* don't run on non-XOs */
if (!machine_is_olpc())
return -ENODEV;
err = mfd_cell_enable(pdev);
if (err)
return err;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res) {
dev_err(&pdev->dev, "can't fetch device resource info\n");
@ -152,8 +146,6 @@ static int xo1_pm_probe(struct platform_device *pdev)
static int xo1_pm_remove(struct platform_device *pdev)
{
mfd_cell_disable(pdev);
if (strcmp(pdev->name, "cs5535-pms") == 0)
pms_base = 0;
else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)

6
arch/x86/platform/olpc/olpc-xo1-sci.c
View File

@ -15,7 +15,6 @@
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/pm_wakeup.h>
#include <linux/mfd/core.h>
#include <linux/power_supply.h>
#include <linux/suspend.h>
#include <linux/workqueue.h>
@ -537,10 +536,6 @@ static int xo1_sci_probe(struct platform_device *pdev)
if (!machine_is_olpc())
return -ENODEV;
r = mfd_cell_enable(pdev);
if (r)
return r;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res) {
dev_err(&pdev->dev, "can't fetch device resource info\n");
@ -605,7 +600,6 @@ err_ebook:
static int xo1_sci_remove(struct platform_device *pdev)
{
mfd_cell_disable(pdev);
free_irq(sci_irq, pdev);
cancel_work_sync(&sci_work);
free_ec_sci();

138
drivers/mfd/ab8500-core.c
View File

@ -610,107 +610,53 @@ int ab8500_suspend(struct ab8500 *ab8500)
}
static const struct mfd_cell ab8500_bm_devs[] = {
{
.name = "ab8500-charger",
.of_compatible = "stericsson,ab8500-charger",
.platform_data = &ab8500_bm_data,
.pdata_size = sizeof(ab8500_bm_data),
},
{
.name = "ab8500-btemp",
.of_compatible = "stericsson,ab8500-btemp",
.platform_data = &ab8500_bm_data,
.pdata_size = sizeof(ab8500_bm_data),
},
{
.name = "ab8500-fg",
.of_compatible = "stericsson,ab8500-fg",
.platform_data = &ab8500_bm_data,
.pdata_size = sizeof(ab8500_bm_data),
},
{
.name = "ab8500-chargalg",
.of_compatible = "stericsson,ab8500-chargalg",
.platform_data = &ab8500_bm_data,
.pdata_size = sizeof(ab8500_bm_data),
},
OF_MFD_CELL("ab8500-charger", NULL, &ab8500_bm_data,
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-charger"),
OF_MFD_CELL("ab8500-btemp", NULL, &ab8500_bm_data,
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-btemp"),
OF_MFD_CELL("ab8500-fg", NULL, &ab8500_bm_data,
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-fg"),
OF_MFD_CELL("ab8500-chargalg", NULL, &ab8500_bm_data,
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-chargalg"),
};
static const struct mfd_cell ab8500_devs[] = {
#ifdef CONFIG_DEBUG_FS
{
.name = "ab8500-debug",
.of_compatible = "stericsson,ab8500-debug",
},
OF_MFD_CELL("ab8500-debug",
NULL, NULL, 0, 0, "stericsson,ab8500-debug"),
#endif
{
.name = "ab8500-sysctrl",
.of_compatible = "stericsson,ab8500-sysctrl",
},
{
.name = "ab8500-ext-regulator",
.of_compatible = "stericsson,ab8500-ext-regulator",
},
{
.name = "ab8500-regulator",
.of_compatible = "stericsson,ab8500-regulator",
},
{
.name = "ab8500-clk",
.of_compatible = "stericsson,ab8500-clk",
},
{
.name = "ab8500-gpadc",
.of_compatible = "stericsson,ab8500-gpadc",
},
{
.name = "ab8500-rtc",
.of_compatible = "stericsson,ab8500-rtc",
},
{
.name = "ab8500-acc-det",
.of_compatible = "stericsson,ab8500-acc-det",
},
{
.name = "ab8500-poweron-key",
.of_compatible = "stericsson,ab8500-poweron-key",
},
{
.name = "ab8500-pwm",
.of_compatible = "stericsson,ab8500-pwm",
.id = 1,
},
{
.name = "ab8500-pwm",
.of_compatible = "stericsson,ab8500-pwm",
.id = 2,
},
{
.name = "ab8500-pwm",
.of_compatible = "stericsson,ab8500-pwm",
.id = 3,
},
{
.name = "ab8500-denc",
.of_compatible = "stericsson,ab8500-denc",
},
{
.name = "pinctrl-ab8500",
.of_compatible = "stericsson,ab8500-gpio",
},
{
.name = "abx500-temp",
.of_compatible = "stericsson,abx500-temp",
},
{
.name = "ab8500-usb",
.of_compatible = "stericsson,ab8500-usb",
},
{
.name = "ab8500-codec",
.of_compatible = "stericsson,ab8500-codec",
},
OF_MFD_CELL("ab8500-sysctrl",
NULL, NULL, 0, 0, "stericsson,ab8500-sysctrl"),
OF_MFD_CELL("ab8500-ext-regulator",
NULL, NULL, 0, 0, "stericsson,ab8500-ext-regulator"),
OF_MFD_CELL("ab8500-regulator",
NULL, NULL, 0, 0, "stericsson,ab8500-regulator"),
OF_MFD_CELL("abx500-clk",
NULL, NULL, 0, 0, "stericsson,abx500-clk"),
OF_MFD_CELL("ab8500-gpadc",
NULL, NULL, 0, 0, "stericsson,ab8500-gpadc"),
OF_MFD_CELL("ab8500-rtc",
NULL, NULL, 0, 0, "stericsson,ab8500-rtc"),
OF_MFD_CELL("ab8500-acc-det",
NULL, NULL, 0, 0, "stericsson,ab8500-acc-det"),
OF_MFD_CELL("ab8500-poweron-key",
NULL, NULL, 0, 0, "stericsson,ab8500-poweron-key"),
OF_MFD_CELL("ab8500-pwm",
NULL, NULL, 0, 1, "stericsson,ab8500-pwm"),
OF_MFD_CELL("ab8500-pwm",
NULL, NULL, 0, 2, "stericsson,ab8500-pwm"),
OF_MFD_CELL("ab8500-pwm",
NULL, NULL, 0, 3, "stericsson,ab8500-pwm"),
OF_MFD_CELL("ab8500-denc",
NULL, NULL, 0, 0, "stericsson,ab8500-denc"),
OF_MFD_CELL("pinctrl-ab8500",
NULL, NULL, 0, 0, "stericsson,ab8500-gpio"),
OF_MFD_CELL("abx500-temp",
NULL, NULL, 0, 0, "stericsson,abx500-temp"),
OF_MFD_CELL("ab8500-usb",
NULL, NULL, 0, 0, "stericsson,ab8500-usb"),
OF_MFD_CELL("ab8500-codec",
NULL, NULL, 0, 0, "stericsson,ab8500-codec"),
};
static const struct mfd_cell ab9540_devs[] = {

6
drivers/mfd/arizona-core.c
View File

@ -814,11 +814,7 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
int ret, i;
/* Handle old non-standard DT binding */
pdata->reset = devm_gpiod_get_from_of_node(arizona->dev,
arizona->dev->of_node,
"wlf,reset", 0,
GPIOD_OUT_LOW,
"arizona /RESET");
pdata->reset = devm_gpiod_get(arizona->dev, "wlf,reset", GPIOD_OUT_LOW);
if (IS_ERR(pdata->reset)) {
ret = PTR_ERR(pdata->reset);

116
drivers/mfd/cs5535-mfd.c
View File

@ -27,121 +27,106 @@ enum cs5535_mfd_bars {
NR_BARS,
};
static int cs5535_mfd_res_enable(struct platform_device *pdev)
{
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res) {
dev_err(&pdev->dev, "can't fetch device resource info\n");
return -EIO;
}
if (!request_region(res->start, resource_size(res), DRV_NAME)) {
dev_err(&pdev->dev, "can't request region\n");
return -EIO;
}
return 0;
}
static int cs5535_mfd_res_disable(struct platform_device *pdev)
{
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res) {
dev_err(&pdev->dev, "can't fetch device resource info\n");
return -EIO;
}
release_region(res->start, resource_size(res));
return 0;
}
static struct resource cs5535_mfd_resources[NR_BARS];
static struct mfd_cell cs5535_mfd_cells[] = {
{
.id = SMB_BAR,
.name = "cs5535-smb",
.num_resources = 1,
.resources = &cs5535_mfd_resources[SMB_BAR],
},
{
.id = GPIO_BAR,
.name = "cs5535-gpio",
.num_resources = 1,
.resources = &cs5535_mfd_resources[GPIO_BAR],
},
{
.id = MFGPT_BAR,
.name = "cs5535-mfgpt",
.num_resources = 1,
.resources = &cs5535_mfd_resources[MFGPT_BAR],
},
{
.id = PMS_BAR,
.name = "cs5535-pms",
.num_resources = 1,
.resources = &cs5535_mfd_resources[PMS_BAR],
.enable = cs5535_mfd_res_enable,
.disable = cs5535_mfd_res_disable,
},
{
.id = ACPI_BAR,
.name = "cs5535-acpi",
.num_resources = 1,
.resources = &cs5535_mfd_resources[ACPI_BAR],
.enable = cs5535_mfd_res_enable,
.disable = cs5535_mfd_res_disable,
},
};
static const char *olpc_acpi_clones[] = {
"olpc-xo1-pm-acpi",
"olpc-xo1-sci-acpi"
static struct mfd_cell cs5535_olpc_mfd_cells[] = {
{
.name = "olpc-xo1-pm-acpi",
.num_resources = 1,
.resources = &cs5535_mfd_resources[ACPI_BAR],
},
{
.name = "olpc-xo1-sci-acpi",
.num_resources = 1,
.resources = &cs5535_mfd_resources[ACPI_BAR],
},
};
static int cs5535_mfd_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
int err, i;
int err, bar;
err = pci_enable_device(pdev);
if (err)
return err;
/* fill in IO range for each cell; subdrivers handle the region */
for (i = 0; i < ARRAY_SIZE(cs5535_mfd_cells); i++) {
int bar = cs5535_mfd_cells[i].id;
for (bar = 0; bar < NR_BARS; bar++) {
struct resource *r = &cs5535_mfd_resources[bar];
r->flags = IORESOURCE_IO;
r->start = pci_resource_start(pdev, bar);
r->end = pci_resource_end(pdev, bar);
/* id is used for temporarily storing BAR; unset it now */
cs5535_mfd_cells[i].id = 0;
}
err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
err = pci_request_region(pdev, PMS_BAR, DRV_NAME);
if (err) {
dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
dev_err(&pdev->dev, "Failed to request PMS_BAR's IO region\n");
goto err_disable;
}
if (machine_is_olpc())
mfd_clone_cell("cs5535-acpi", olpc_acpi_clones, ARRAY_SIZE(olpc_acpi_clones));
err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, cs5535_mfd_cells,
ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
if (err) {
dev_err(&pdev->dev,
"Failed to add CS5535 sub-devices: %d\n", err);
goto err_release_pms;
}
if (machine_is_olpc()) {
err = pci_request_region(pdev, ACPI_BAR, DRV_NAME);
if (err) {
dev_err(&pdev->dev,
"Failed to request ACPI_BAR's IO region\n");
goto err_remove_devices;
}
err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE,
cs5535_olpc_mfd_cells,
ARRAY_SIZE(cs5535_olpc_mfd_cells),
NULL, 0, NULL);
if (err) {
dev_err(&pdev->dev,
"Failed to add CS5535 OLPC sub-devices: %d\n",
err);
goto err_release_acpi;
}
}
dev_info(&pdev->dev, "%zu devices registered.\n",
ARRAY_SIZE(cs5535_mfd_cells));
return 0;
err_release_acpi:
pci_release_region(pdev, ACPI_BAR);
err_remove_devices:
mfd_remove_devices(&pdev->dev);
err_release_pms:
pci_release_region(pdev, PMS_BAR);
err_disable:
pci_disable_device(pdev);
return err;
@ -150,6 +135,11 @@ err_disable:
static void cs5535_mfd_remove(struct pci_dev *pdev)
{
mfd_remove_devices(&pdev->dev);
if (machine_is_olpc())
pci_release_region(pdev, ACPI_BAR);
pci_release_region(pdev, PMS_BAR);
pci_disable_device(pdev);
}

84
drivers/mfd/db8500-prcmu.c
View File

@ -27,6 +27,7 @@
#include <linux/bitops.h>
#include <linux/fs.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/uaccess.h>
@ -668,6 +669,14 @@ struct prcmu_fw_version *prcmu_get_fw_version(void)
return fw_info.valid ? &fw_info.version : NULL;
}
static bool prcmu_is_ulppll_disabled(void)
{
struct prcmu_fw_version *ver;
ver = prcmu_get_fw_version();
return ver && ver->project == PRCMU_FW_PROJECT_U8420_SYSCLK;
}
bool prcmu_has_arm_maxopp(void)
{
return (readb(tcdm_base + PRCM_AVS_VARM_MAX_OPP) &
@ -1308,10 +1317,23 @@ static int request_sysclk(bool enable)
static int request_timclk(bool enable)
{
u32 val = (PRCM_TCR_DOZE_MODE | PRCM_TCR_TENSEL_MASK);
u32 val;
/*
* On the U8420_CLKSEL firmware, the ULP (Ultra Low Power)
* PLL is disabled so we cannot use doze mode, this will
* stop the clock on this firmware.
*/
if (prcmu_is_ulppll_disabled())
val = 0;
else
val = (PRCM_TCR_DOZE_MODE | PRCM_TCR_TENSEL_MASK);
if (!enable)
val |= PRCM_TCR_STOP_TIMERS;
val |= PRCM_TCR_STOP_TIMERS |
PRCM_TCR_DOZE_MODE |
PRCM_TCR_TENSEL_MASK;
writel(val, PRCM_TCR);
return 0;
@ -1615,7 +1637,8 @@ unsigned long prcmu_clock_rate(u8 clock)
if (clock < PRCMU_NUM_REG_CLOCKS)
return clock_rate(clock);
else if (clock == PRCMU_TIMCLK)
return ROOT_CLOCK_RATE / 16;
return prcmu_is_ulppll_disabled() ?
32768 : ROOT_CLOCK_RATE / 16;
else if (clock == PRCMU_SYSCLK)
return ROOT_CLOCK_RATE;
else if (clock == PRCMU_PLLSOC0)
@ -2646,6 +2669,8 @@ static char *fw_project_name(u32 project)
return "U8520 MBL";
case PRCMU_FW_PROJECT_U8420:
return "U8420";
case PRCMU_FW_PROJECT_U8420_SYSCLK:
return "U8420-sysclk";
case PRCMU_FW_PROJECT_U9540:
return "U9540";
case PRCMU_FW_PROJECT_A9420:
@ -2693,27 +2718,18 @@ static int db8500_irq_init(struct device_node *np)
return 0;
}
static void dbx500_fw_version_init(struct platform_device *pdev,
u32 version_offset)
static void dbx500_fw_version_init(struct device_node *np)
{
struct resource *res;
void __iomem *tcpm_base;
u32 version;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"prcmu-tcpm");
if (!res) {
dev_err(&pdev->dev,
"Error: no prcmu tcpm memory region provided\n");
return;
}
tcpm_base = ioremap(res->start, resource_size(res));
tcpm_base = of_iomap(np, 1);
if (!tcpm_base) {
dev_err(&pdev->dev, "no prcmu tcpm mem region provided\n");
pr_err("no prcmu tcpm mem region provided\n");
return;
}
version = readl(tcpm_base + version_offset);
version = readl(tcpm_base + DB8500_PRCMU_FW_VERSION_OFFSET);
fw_info.version.project = (version & 0xFF);
fw_info.version.api_version = (version >> 8) & 0xFF;
fw_info.version.func_version = (version >> 16) & 0xFF;
@ -2731,7 +2747,7 @@ static void dbx500_fw_version_init(struct platform_device *pdev,
iounmap(tcpm_base);
}
void __init db8500_prcmu_early_init(u32 phy_base, u32 size)
void __init db8500_prcmu_early_init(void)
{
/*
* This is a temporary remap to bring up the clocks. It is
@ -2740,9 +2756,17 @@ void __init db8500_prcmu_early_init(u32 phy_base, u32 size)
* clock driver can probe independently. An early initcall will
* still be needed, but it can be diverted into drivers/clk/ux500.
*/
prcmu_base = ioremap(phy_base, size);
if (!prcmu_base)
struct device_node *np;
np = of_find_compatible_node(NULL, NULL, "stericsson,db8500-prcmu");
prcmu_base = of_iomap(np, 0);
if (!prcmu_base) {
of_node_put(np);
pr_err("%s: ioremap() of prcmu registers failed!\n", __func__);
return;
}
dbx500_fw_version_init(np);
of_node_put(np);
spin_lock_init(&mb0_transfer.lock);
spin_lock_init(&mb0_transfer.dbb_irqs_lock);
@ -3024,20 +3048,13 @@ static const struct mfd_cell common_prcmu_devs[] = {
};
static const struct mfd_cell db8500_prcmu_devs[] = {
{
.name = "db8500-prcmu-regulators",
.of_compatible = "stericsson,db8500-prcmu-regulator",
.platform_data = &db8500_regulators,
.pdata_size = sizeof(db8500_regulators),
},
{
.name = "cpuidle-dbx500",
.of_compatible = "stericsson,cpuidle-dbx500",
},
{
.name = "db8500-thermal",
.of_compatible = "stericsson,db8500-thermal",
},
OF_MFD_CELL("db8500-prcmu-regulators", NULL,
&db8500_regulators, sizeof(db8500_regulators), 0,
"stericsson,db8500-prcmu-regulator"),
OF_MFD_CELL("cpuidle-dbx500",
NULL, NULL, 0, 0, "stericsson,cpuidle-dbx500"),
OF_MFD_CELL("db8500-thermal",
NULL, NULL, 0, 0, "stericsson,db8500-thermal"),
};
static int db8500_prcmu_register_ab8500(struct device *parent)
@ -3091,7 +3108,6 @@ static int db8500_prcmu_probe(struct platform_device *pdev)
return -ENOMEM;
}
init_prcm_registers();
dbx500_fw_version_init(pdev, DB8500_PRCMU_FW_VERSION_OFFSET);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu-tcdm");
if (!res) {
dev_err(&pdev->dev, "no prcmu tcdm region provided\n");

41
drivers/mfd/intel-lpss-pci.c
View File

@ -122,13 +122,25 @@ static const struct intel_lpss_platform_info apl_i2c_info = {
.properties = apl_i2c_properties,
};
static struct property_entry glk_i2c_properties[] = {
PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 313),
PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 290),
{ },
};
static const struct intel_lpss_platform_info glk_i2c_info = {
.clk_rate = 133000000,
.properties = glk_i2c_properties,
};
static const struct intel_lpss_platform_info cnl_i2c_info = {
.clk_rate = 216000000,
.properties = spt_i2c_properties,
};
static const struct pci_device_id intel_lpss_pci_ids[] = {
/* CML */
/* CML-LP */
{ PCI_VDEVICE(INTEL, 0x02a8), (kernel_ulong_t)&spt_uart_info },
{ PCI_VDEVICE(INTEL, 0x02a9), (kernel_ulong_t)&spt_uart_info },
{ PCI_VDEVICE(INTEL, 0x02aa), (kernel_ulong_t)&spt_info },
@ -141,6 +153,17 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x02ea), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x02eb), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x02fb), (kernel_ulong_t)&spt_info },
/* CML-H */
{ PCI_VDEVICE(INTEL, 0x06a8), (kernel_ulong_t)&spt_uart_info },
{ PCI_VDEVICE(INTEL, 0x06a9), (kernel_ulong_t)&spt_uart_info },
{ PCI_VDEVICE(INTEL, 0x06aa), (kernel_ulong_t)&spt_info },
{ PCI_VDEVICE(INTEL, 0x06ab), (kernel_ulong_t)&spt_info },
{ PCI_VDEVICE(INTEL, 0x06c7), (kernel_ulong_t)&spt_uart_info },
{ PCI_VDEVICE(INTEL, 0x06e8), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x06e9), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x06ea), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x06eb), (kernel_ulong_t)&cnl_i2c_info },
{ PCI_VDEVICE(INTEL, 0x06fb), (kernel_ulong_t)&spt_info },
/* BXT A-Step */
{ PCI_VDEVICE(INTEL, 0x0aac), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x0aae), (kernel_ulong_t)&bxt_i2c_info },
@ -174,14 +197,14 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x1ac6), (kernel_ulong_t)&bxt_info },
{ PCI_VDEVICE(INTEL, 0x1aee), (kernel_ulong_t)&bxt_uart_info },
/* GLK */
{ PCI_VDEVICE(INTEL, 0x31ac), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31ae), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b0), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b2), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b4), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b6), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b8), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31ba), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31ac), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31ae), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b0), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b2), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b4), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b6), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31b8), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31ba), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31bc), (kernel_ulong_t)&bxt_uart_info },
{ PCI_VDEVICE(INTEL, 0x31be), (kernel_ulong_t)&bxt_uart_info },
{ PCI_VDEVICE(INTEL, 0x31c0), (kernel_ulong_t)&bxt_uart_info },

2
drivers/mfd/intel-lpss.c
View File

@ -384,7 +384,7 @@ int intel_lpss_probe(struct device *dev,
if (!lpss)
return -ENOMEM;
lpss->priv = devm_ioremap(dev, info->mem->start + LPSS_PRIV_OFFSET,
lpss->priv = devm_ioremap_uc(dev, info->mem->start + LPSS_PRIV_OFFSET,
LPSS_PRIV_SIZE);
if (!lpss->priv)
return -ENOMEM;

3
drivers/mfd/intel_soc_pmic_crc.c
View File

@ -88,6 +88,9 @@ static struct mfd_cell crystal_cove_cht_dev[] = {
.num_resources = ARRAY_SIZE(gpio_resources),
.resources = gpio_resources,
},
{
.name = "cht_crystal_cove_pmic",
},
{
.name = "crystal_cove_pwm",
},

6
drivers/mfd/ipaq-micro.c
View File

@ -396,11 +396,7 @@ static int __init micro_probe(struct platform_device *pdev)
if (IS_ERR(micro->base))
return PTR_ERR(micro->base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res)
return -EINVAL;
micro->sdlc = devm_ioremap_resource(&pdev->dev, res);
micro->sdlc = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(micro->sdlc))
return PTR_ERR(micro->sdlc);

27
drivers/mfd/madera-core.c
View File

@ -450,6 +450,21 @@ int madera_dev_init(struct madera *madera)
sizeof(madera->pdata));
}
madera->mclk[MADERA_MCLK1].id = "mclk1";
madera->mclk[MADERA_MCLK2].id = "mclk2";
madera->mclk[MADERA_MCLK3].id = "mclk3";
ret = devm_clk_bulk_get_optional(madera->dev, ARRAY_SIZE(madera->mclk),
madera->mclk);
if (ret) {
dev_err(madera->dev, "Failed to get clocks: %d\n", ret);
return ret;
}
/* Not using devm_clk_get to prevent breakage of existing DTs */
if (!madera->mclk[MADERA_MCLK2].clk)
dev_warn(madera->dev, "Missing MCLK2, requires 32kHz clock\n");
ret = madera_get_reset_gpio(madera);
if (ret)
return ret;
@ -660,13 +675,19 @@ int madera_dev_init(struct madera *madera)
}
/* Init 32k clock sourced from MCLK2 */
ret = clk_prepare_enable(madera->mclk[MADERA_MCLK2].clk);
if (ret) {
dev_err(madera->dev, "Failed to enable 32k clock: %d\n", ret);
goto err_reset;
}
ret = regmap_update_bits(madera->regmap,
MADERA_CLOCK_32K_1,
MADERA_CLK_32K_ENA_MASK | MADERA_CLK_32K_SRC_MASK,
MADERA_CLK_32K_ENA | MADERA_32KZ_MCLK2);
if (ret) {
dev_err(madera->dev, "Failed to init 32k clock: %d\n", ret);
goto err_reset;
goto err_clock;
}
pm_runtime_set_active(madera->dev);
@ -687,6 +708,8 @@ int madera_dev_init(struct madera *madera)
err_pm_runtime:
pm_runtime_disable(madera->dev);
err_clock:
clk_disable_unprepare(madera->mclk[MADERA_MCLK2].clk);
err_reset:
madera_enable_hard_reset(madera);
regulator_disable(madera->dcvdd);
@ -713,6 +736,8 @@ int madera_dev_exit(struct madera *madera)
*/
pm_runtime_disable(madera->dev);
clk_disable_unprepare(madera->mclk[MADERA_MCLK2].clk);
regulator_disable(madera->dcvdd);
regulator_put(madera->dcvdd);

5
drivers/mfd/max77620.c
View File

@ -507,7 +507,6 @@ static int max77620_probe(struct i2c_client *client,
i2c_set_clientdata(client, chip);
chip->dev = &client->dev;
chip->irq_base = -1;
chip->chip_irq = client->irq;
chip->chip_id = (enum max77620_chip_id)id->driver_data;
@ -545,8 +544,8 @@ static int max77620_probe(struct i2c_client *client,
max77620_top_irq_chip.irq_drv_data = chip;
ret = devm_regmap_add_irq_chip(chip->dev, chip->rmap, client->irq,
IRQF_ONESHOT | IRQF_SHARED,
chip->irq_base, &max77620_top_irq_chip,
IRQF_ONESHOT | IRQF_SHARED, 0,
&max77620_top_irq_chip,
&chip->top_irq_data);
if (ret < 0) {
dev_err(chip->dev, "Failed to add regmap irq: %d\n", ret);

118
drivers/mfd/mfd-core.c
View File

@ -26,55 +26,29 @@ static struct device_type mfd_dev_type = {
int mfd_cell_enable(struct platform_device *pdev)
{
const struct mfd_cell *cell = mfd_get_cell(pdev);
int err = 0;
/* only call enable hook if the cell wasn't previously enabled */
if (atomic_inc_return(cell->usage_count) == 1)
err = cell->enable(pdev);
if (!cell->enable) {
dev_dbg(&pdev->dev, "No .enable() call-back registered\n");
return 0;
}
/* if the enable hook failed, decrement counter to allow retries */
if (err)
atomic_dec(cell->usage_count);
return err;
return cell->enable(pdev);
}
EXPORT_SYMBOL(mfd_cell_enable);
int mfd_cell_disable(struct platform_device *pdev)
{
const struct mfd_cell *cell = mfd_get_cell(pdev);
int err = 0;
/* only disable if no other clients are using it */
if (atomic_dec_return(cell->usage_count) == 0)
err = cell->disable(pdev);
if (!cell->disable) {
dev_dbg(&pdev->dev, "No .disable() call-back registered\n");
return 0;
}
/* if the disable hook failed, increment to allow retries */
if (err)
atomic_inc(cell->usage_count);
/* sanity check; did someone call disable too many times? */
WARN_ON(atomic_read(cell->usage_count) < 0);
return err;
return cell->disable(pdev);
}
EXPORT_SYMBOL(mfd_cell_disable);
static int mfd_platform_add_cell(struct platform_device *pdev,
const struct mfd_cell *cell,
atomic_t *usage_count)
{
if (!cell)
return 0;
pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
if (!pdev->mfd_cell)
return -ENOMEM;
pdev->mfd_cell->usage_count = usage_count;
return 0;
}
#if IS_ENABLED(CONFIG_ACPI)
static void mfd_acpi_add_device(const struct mfd_cell *cell,
struct platform_device *pdev)
@ -134,7 +108,7 @@ static inline void mfd_acpi_add_device(const struct mfd_cell *cell,
#endif
static int mfd_add_device(struct device *parent, int id,
const struct mfd_cell *cell, atomic_t *usage_count,
const struct mfd_cell *cell,
struct resource *mem_base,
int irq_base, struct irq_domain *domain)
{
@ -154,6 +128,10 @@ static int mfd_add_device(struct device *parent, int id,
if (!pdev)
goto fail_alloc;
pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
if (!pdev->mfd_cell)
goto fail_device;
res = kcalloc(cell->num_resources, sizeof(*res), GFP_KERNEL);
if (!res)
goto fail_device;
@ -174,6 +152,11 @@ static int mfd_add_device(struct device *parent, int id,
if (parent->of_node && cell->of_compatible) {
for_each_child_of_node(parent->of_node, np) {
if (of_device_is_compatible(np, cell->of_compatible)) {
if (!of_device_is_available(np)) {
/* Ignore disabled devices error free */
ret = 0;
goto fail_alias;
}
pdev->dev.of_node = np;
pdev->dev.fwnode = &np->fwnode;
break;
@ -196,10 +179,6 @@ static int mfd_add_device(struct device *parent, int id,
goto fail_alias;
}
ret = mfd_platform_add_cell(pdev, cell, usage_count);
if (ret)
goto fail_alias;
for (r = 0; r < cell->num_resources; r++) {
res[r].name = cell->resources[r].name;
res[r].flags = cell->resources[r].flags;
@ -286,16 +265,9 @@ int mfd_add_devices(struct device *parent, int id,
{
int i;
int ret;
atomic_t *cnts;
/* initialize reference counting for all cells */
cnts = kcalloc(n_devs, sizeof(*cnts), GFP_KERNEL);
if (!cnts)
return -ENOMEM;
for (i = 0; i < n_devs; i++) {
atomic_set(&cnts[i], 0);
ret = mfd_add_device(parent, id, cells + i, cnts + i, mem_base,
ret = mfd_add_device(parent, id, cells + i, mem_base,
irq_base, domain);
if (ret)
goto fail;
@ -306,17 +278,15 @@ int mfd_add_devices(struct device *parent, int id,
fail:
if (i)
mfd_remove_devices(parent);
else
kfree(cnts);
return ret;
}
EXPORT_SYMBOL(mfd_add_devices);
static int mfd_remove_devices_fn(struct device *dev, void *c)
static int mfd_remove_devices_fn(struct device *dev, void *data)
{
struct platform_device *pdev;
const struct mfd_cell *cell;
atomic_t **usage_count = c;
if (dev->type != &mfd_dev_type)
return 0;
@ -327,20 +297,13 @@ static int mfd_remove_devices_fn(struct device *dev, void *c)
regulator_bulk_unregister_supply_alias(dev, cell->parent_supplies,
cell->num_parent_supplies);
/* find the base address of usage_count pointers (for freeing) */
if (!*usage_count || (cell->usage_count < *usage_count))
*usage_count = cell->usage_count;
platform_device_unregister(pdev);
return 0;
}
void mfd_remove_devices(struct device *parent)
{
atomic_t *cnts = NULL;
device_for_each_child_reverse(parent, &cnts, mfd_remove_devices_fn);
kfree(cnts);
device_for_each_child_reverse(parent, NULL, mfd_remove_devices_fn);
}
EXPORT_SYMBOL(mfd_remove_devices);
@ -382,38 +345,5 @@ int devm_mfd_add_devices(struct device *dev, int id,
}
EXPORT_SYMBOL(devm_mfd_add_devices);
int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
{
struct mfd_cell cell_entry;
struct device *dev;
struct platform_device *pdev;
int i;
/* fetch the parent cell's device (should already be registered!) */
dev = bus_find_device_by_name(&platform_bus_type, NULL, cell);
if (!dev) {
printk(KERN_ERR "failed to find device for cell %s\n", cell);
return -ENODEV;
}
pdev = to_platform_device(dev);
memcpy(&cell_entry, mfd_get_cell(pdev), sizeof(cell_entry));
WARN_ON(!cell_entry.enable);
for (i = 0; i < n_clones; i++) {
cell_entry.name = clones[i];
/* don't give up if a single call fails; just report error */
if (mfd_add_device(pdev->dev.parent, -1, &cell_entry,
cell_entry.usage_count, NULL, 0, NULL))
dev_err(dev, "failed to create platform device '%s'\n",
clones[i]);
}
put_device(dev);
return 0;
}
EXPORT_SYMBOL(mfd_clone_cell);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov");

12
drivers/mfd/mt6397-core.c
View File

@ -189,16 +189,16 @@ static int mt6397_probe(struct platform_device *pdev)
switch (pmic->chip_id) {
case MT6323_CHIP_ID:
ret = devm_mfd_add_devices(&pdev->dev, -1, mt6323_devs,
ARRAY_SIZE(mt6323_devs), NULL,
0, pmic->irq_domain);
ret = devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE,
mt6323_devs, ARRAY_SIZE(mt6323_devs),
NULL, 0, pmic->irq_domain);
break;
case MT6391_CHIP_ID:
case MT6397_CHIP_ID:
ret = devm_mfd_add_devices(&pdev->dev, -1, mt6397_devs,
ARRAY_SIZE(mt6397_devs), NULL,
0, pmic->irq_domain);
ret = devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE,
mt6397_devs, ARRAY_SIZE(mt6397_devs),
NULL, 0, pmic->irq_domain);
break;
default:

4
drivers/mfd/qcom-spmi-pmic.c
View File

@ -31,6 +31,8 @@
#define PM8916_SUBTYPE 0x0b
#define PM8004_SUBTYPE 0x0c
#define PM8909_SUBTYPE 0x0d
#define PM8950_SUBTYPE 0x10
#define PMI8950_SUBTYPE 0x11
#define PM8998_SUBTYPE 0x14
#define PMI8998_SUBTYPE 0x15
#define PM8005_SUBTYPE 0x18
@ -50,6 +52,8 @@ static const struct of_device_id pmic_spmi_id_table[] = {
{ .compatible = "qcom,pm8916", .data = (void *)PM8916_SUBTYPE },
{ .compatible = "qcom,pm8004", .data = (void *)PM8004_SUBTYPE },
{ .compatible = "qcom,pm8909", .data = (void *)PM8909_SUBTYPE },
{ .compatible = "qcom,pm8950", .data = (void *)PM8950_SUBTYPE },
{ .compatible = "qcom,pmi8950", .data = (void *)PMI8950_SUBTYPE },
{ .compatible = "qcom,pm8998", .data = (void *)PM8998_SUBTYPE },
{ .compatible = "qcom,pmi8998", .data = (void *)PMI8998_SUBTYPE },
{ .compatible = "qcom,pm8005", .data = (void *)PM8005_SUBTYPE },

22
drivers/mfd/rk808.c
View File

@ -109,11 +109,7 @@ static const struct regmap_config rk817_regmap_config = {
};
static struct resource rtc_resources[] = {
{
.start = RK808_IRQ_RTC_ALARM,
.end = RK808_IRQ_RTC_ALARM,
.flags = IORESOURCE_IRQ,
}
DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM),
};
static struct resource rk817_rtc_resources[] = {
@ -121,16 +117,8 @@ static struct resource rk817_rtc_resources[] = {
};
static struct resource rk805_key_resources[] = {
{
.start = RK805_IRQ_PWRON_FALL,
.end = RK805_IRQ_PWRON_FALL,
.flags = IORESOURCE_IRQ,
},
{
.start = RK805_IRQ_PWRON_RISE,
.end = RK805_IRQ_PWRON_RISE,
.flags = IORESOURCE_IRQ,
}
DEFINE_RES_IRQ(RK805_IRQ_PWRON_RISE),
DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL),
};
static struct resource rk817_pwrkey_resources[] = {
@ -167,7 +155,7 @@ static const struct mfd_cell rk817s[] = {
{ .name = "rk808-clkout",},
{ .name = "rk808-regulator",},
{
.name = "rk8xx-pwrkey",
.name = "rk805-pwrkey",
.num_resources = ARRAY_SIZE(rk817_pwrkey_resources),
.resources = &rk817_pwrkey_resources[0],
},
@ -215,7 +203,7 @@ static const struct rk808_reg_data rk808_pre_init_reg[] = {
static const struct rk808_reg_data rk817_pre_init_reg[] = {
{RK817_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
{RK817_GPIO_INT_CFG, RK817_INT_POL_MSK, RK817_INT_POL_H},
{RK817_GPIO_INT_CFG, RK817_INT_POL_MSK, RK817_INT_POL_L},
{RK817_SYS_CFG(1), RK817_HOTDIE_TEMP_MSK | RK817_TSD_TEMP_MSK,
RK817_HOTDIE_105 | RK817_TSD_140},
};

17
drivers/mfd/rohm-bd70528.c
View File

@ -105,15 +105,14 @@ static struct regmap_config bd70528_regmap = {
* register.
*/
/* bit [0] - Shutdown register */
unsigned int bit0_offsets[] = {0}; /* Shutdown register */
unsigned int bit1_offsets[] = {1}; /* Power failure register */
unsigned int bit2_offsets[] = {2}; /* VR FAULT register */
unsigned int bit3_offsets[] = {3}; /* PMU register interrupts */
unsigned int bit4_offsets[] = {4, 5}; /* Charger 1 and Charger 2 registers */
unsigned int bit5_offsets[] = {6}; /* RTC register */
unsigned int bit6_offsets[] = {7}; /* GPIO register */
unsigned int bit7_offsets[] = {8}; /* Invalid operation register */
static unsigned int bit0_offsets[] = {0}; /* Shutdown */
static unsigned int bit1_offsets[] = {1}; /* Power failure */
static unsigned int bit2_offsets[] = {2}; /* VR FAULT */
static unsigned int bit3_offsets[] = {3}; /* PMU interrupts */
static unsigned int bit4_offsets[] = {4, 5}; /* Charger 1 and Charger 2 */
static unsigned int bit5_offsets[] = {6}; /* RTC */
static unsigned int bit6_offsets[] = {7}; /* GPIO */
static unsigned int bit7_offsets[] = {8}; /* Invalid operation */
static struct regmap_irq_sub_irq_map bd70528_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),

1
drivers/mfd/syscon.c
View File

@ -105,7 +105,6 @@ static struct syscon *of_syscon_register(struct device_node *np, bool check_clk)
syscon_config.reg_stride = reg_io_width;
syscon_config.val_bits = reg_io_width * 8;
syscon_config.max_register = resource_size(&res) - reg_io_width;
syscon_config.name = of_node_full_name(np);
regmap = regmap_init_mmio(NULL, base, &syscon_config);
if (IS_ERR(regmap)) {

2
drivers/mfd/ti_am335x_tscadc.c
View File

@ -182,11 +182,11 @@ static int ti_tscadc_probe(struct platform_device *pdev)
tscadc->irq = err;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
tscadc->tscadc_phys_base = res->start;
tscadc->tscadc_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(tscadc->tscadc_base))
return PTR_ERR(tscadc->tscadc_base);
tscadc->tscadc_phys_base = res->start;
tscadc->regmap = devm_regmap_init_mmio(&pdev->dev,
tscadc->tscadc_base, &tscadc_regmap_config);
if (IS_ERR(tscadc->regmap)) {

12
drivers/mfd/wm8998-tables.c
View File

@ -806,12 +806,6 @@ static const struct reg_default wm8998_reg_default[] = {
{ 0x00000EF3, 0x0000 }, /* R3827 - ISRC 2 CTRL 1 */
{ 0x00000EF4, 0x0001 }, /* R3828 - ISRC 2 CTRL 2 */
{ 0x00000EF5, 0x0000 }, /* R3829 - ISRC 2 CTRL 3 */
{ 0x00001700, 0x0000 }, /* R5888 - FRF_COEFF_1 */
{ 0x00001701, 0x0000 }, /* R5889 - FRF_COEFF_2 */
{ 0x00001702, 0x0000 }, /* R5890 - FRF_COEFF_3 */
{ 0x00001703, 0x0000 }, /* R5891 - FRF_COEFF_4 */
{ 0x00001704, 0x0000 }, /* R5892 - DAC_COMP_1 */
{ 0x00001705, 0x0000 }, /* R5893 - DAC_COMP_2 */
};
static bool wm8998_readable_register(struct device *dev, unsigned int reg)
@ -1492,12 +1486,6 @@ static bool wm8998_readable_register(struct device *dev, unsigned int reg)
case ARIZONA_ISRC_2_CTRL_1:
case ARIZONA_ISRC_2_CTRL_2:
case ARIZONA_ISRC_2_CTRL_3:
case ARIZONA_FRF_COEFF_1:
case ARIZONA_FRF_COEFF_2:
case ARIZONA_FRF_COEFF_3:
case ARIZONA_FRF_COEFF_4:
case ARIZONA_V2_DAC_COMP_1:
case ARIZONA_V2_DAC_COMP_2:
return true;
default:
return false;

10
drivers/power/reset/Kconfig
View File

@ -140,6 +140,16 @@ config POWER_RESET_LTC2952
This driver supports an external powerdown trigger and board power
down via the LTC2952. Bindings are made in the device tree.
config POWER_RESET_MT6323
bool "MediaTek MT6323 power-off driver"
depends on MFD_MT6397
help
The power-off driver is responsible for externally shutdown down
the power of a remote MediaTek SoC MT6323 is connected to through
controlling a tiny circuit BBPU inside MT6323 RTC.
Say Y if you have a board where MT6323 could be found.
config POWER_RESET_QNAP
bool "QNAP power-off driver"
depends on OF_GPIO && PLAT_ORION

1
drivers/power/reset/Makefile
View File

@ -11,6 +11,7 @@ obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o
obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o
obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
obj-$(CONFIG_POWER_RESET_MT6323) += mt6323-poweroff.o
obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o
obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o
obj-$(CONFIG_POWER_RESET_PIIX4_POWEROFF) += piix4-poweroff.o

97
drivers/power/reset/mt6323-poweroff.c Normal file
View File

@ -0,0 +1,97 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Power off through MediaTek PMIC
*
* Copyright (C) 2018 MediaTek Inc.
*
* Author: Sean Wang <sean.wang@mediatek.com>
*
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6397/rtc.h>
struct mt6323_pwrc {
struct device *dev;
struct regmap *regmap;
u32 base;
};
static struct mt6323_pwrc *mt_pwrc;
static void mt6323_do_pwroff(void)
{
struct mt6323_pwrc *pwrc = mt_pwrc;
unsigned int val;
int ret;
regmap_write(pwrc->regmap, pwrc->base + RTC_BBPU, RTC_BBPU_KEY);
regmap_write(pwrc->regmap, pwrc->base + RTC_WRTGR, 1);
ret = regmap_read_poll_timeout(pwrc->regmap,
pwrc->base + RTC_BBPU, val,
!(val & RTC_BBPU_CBUSY),
MTK_RTC_POLL_DELAY_US,
MTK_RTC_POLL_TIMEOUT);
if (ret)
dev_err(pwrc->dev, "failed to write BBPU: %d\n", ret);
/* Wait some time until system down, otherwise, notice with a warn */
mdelay(1000);
WARN_ONCE(1, "Unable to power off system\n");
}
static int mt6323_pwrc_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6397_chip = dev_get_drvdata(pdev->dev.parent);
struct mt6323_pwrc *pwrc;
struct resource *res;
pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);
if (!pwrc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pwrc->base = res->start;
pwrc->regmap = mt6397_chip->regmap;
pwrc->dev = &pdev->dev;
mt_pwrc = pwrc;
pm_power_off = &mt6323_do_pwroff;
return 0;
}
static int mt6323_pwrc_remove(struct platform_device *pdev)
{
if (pm_power_off == &mt6323_do_pwroff)
pm_power_off = NULL;
return 0;
}
static const struct of_device_id mt6323_pwrc_dt_match[] = {
{ .compatible = "mediatek,mt6323-pwrc" },
{},
};
MODULE_DEVICE_TABLE(of, mt6323_pwrc_dt_match);
static struct platform_driver mt6323_pwrc_driver = {
.probe = mt6323_pwrc_probe,
.remove = mt6323_pwrc_remove,
.driver = {
.name = "mt6323-pwrc",
.of_match_table = mt6323_pwrc_dt_match,
},
};
module_platform_driver(mt6323_pwrc_driver);
MODULE_DESCRIPTION("Poweroff driver for MT6323 PMIC");
MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
MODULE_LICENSE("GPL v2");

99
drivers/rtc/rtc-mt6397.c
View File

@ -4,69 +4,19 @@
* Author: Tianping.Fang <tianping.fang@mediatek.com>
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/rtc.h>
#include <linux/irqdomain.h>
#include <linux/platform_device.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/io.h>
#include <linux/mfd/mt6397/core.h>
#define RTC_BBPU 0x0000
#define RTC_BBPU_CBUSY BIT(6)
#define RTC_WRTGR 0x003c
#define RTC_IRQ_STA 0x0002
#define RTC_IRQ_STA_AL BIT(0)
#define RTC_IRQ_STA_LP BIT(3)
#define RTC_IRQ_EN 0x0004
#define RTC_IRQ_EN_AL BIT(0)
#define RTC_IRQ_EN_ONESHOT BIT(2)
#define RTC_IRQ_EN_LP BIT(3)
#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
#define RTC_AL_MASK 0x0008
#define RTC_AL_MASK_DOW BIT(4)
#define RTC_TC_SEC 0x000a
/* Min, Hour, Dom... register offset to RTC_TC_SEC */
#define RTC_OFFSET_SEC 0
#define RTC_OFFSET_MIN 1
#define RTC_OFFSET_HOUR 2
#define RTC_OFFSET_DOM 3
#define RTC_OFFSET_DOW 4
#define RTC_OFFSET_MTH 5
#define RTC_OFFSET_YEAR 6
#define RTC_OFFSET_COUNT 7
#define RTC_AL_SEC 0x0018
#define RTC_PDN2 0x002e
#define RTC_PDN2_PWRON_ALARM BIT(4)
#define RTC_MIN_YEAR 1968
#define RTC_BASE_YEAR 1900
#define RTC_NUM_YEARS 128
#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
struct mt6397_rtc {
struct device *dev;
struct rtc_device *rtc_dev;
struct mutex lock;
struct regmap *regmap;
int irq;
u32 addr_base;
};
#include <linux/mfd/mt6397/rtc.h>
#include <linux/mod_devicetable.h>
static int mtk_rtc_write_trigger(struct mt6397_rtc *rtc)
{
unsigned long timeout = jiffies + HZ;
int ret;
u32 data;
@ -74,19 +24,13 @@ static int mtk_rtc_write_trigger(struct mt6397_rtc *rtc)
if (ret < 0)
return ret;
while (1) {
ret = regmap_read(rtc->regmap, rtc->addr_base + RTC_BBPU,
&data);
ret = regmap_read_poll_timeout(rtc->regmap,
rtc->addr_base + RTC_BBPU, data,
!(data & RTC_BBPU_CBUSY),
MTK_RTC_POLL_DELAY_US,
MTK_RTC_POLL_TIMEOUT);
if (ret < 0)
break;
if (!(data & RTC_BBPU_CBUSY))
break;
if (time_after(jiffies, timeout)) {
ret = -ETIMEDOUT;
break;
}
cpu_relax();
}
dev_err(rtc->dev, "failed to write WRTGE: %d\n", ret);
return ret;
}
@ -319,19 +263,19 @@ static int mtk_rtc_probe(struct platform_device *pdev)
return rtc->irq;
rtc->regmap = mt6397_chip->regmap;
rtc->dev = &pdev->dev;
mutex_init(&rtc->lock);
platform_set_drvdata(pdev, rtc);
rtc->rtc_dev = devm_rtc_allocate_device(rtc->dev);
rtc->rtc_dev = devm_rtc_allocate_device(&pdev->dev);
if (IS_ERR(rtc->rtc_dev))
return PTR_ERR(rtc->rtc_dev);
ret = request_threaded_irq(rtc->irq, NULL,
ret = devm_request_threaded_irq(&pdev->dev, rtc->irq, NULL,
mtk_rtc_irq_handler_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
"mt6397-rtc", rtc);
if (ret) {
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
rtc->irq, ret);
@ -353,15 +297,6 @@ out_free_irq:
return ret;
}
static int mtk_rtc_remove(struct platform_device *pdev)
{
struct mt6397_rtc *rtc = platform_get_drvdata(pdev);
free_irq(rtc->irq, rtc);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int mt6397_rtc_suspend(struct device *dev)
{
@ -388,6 +323,7 @@ static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_rtc_suspend,
mt6397_rtc_resume);
static const struct of_device_id mt6397_rtc_of_match[] = {
{ .compatible = "mediatek,mt6323-rtc", },
{ .compatible = "mediatek,mt6397-rtc", },
{ }
};
@ -400,7 +336,6 @@ static struct platform_driver mtk_rtc_driver = {
.pm = &mt6397_pm_ops,
},
.probe = mtk_rtc_probe,
.remove = mtk_rtc_remove,
};
module_platform_driver(mtk_rtc_driver);

2
include/linux/io.h
View File

@ -64,6 +64,8 @@ static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
resource_size_t size);
void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,
resource_size_t size);
void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
resource_size_t size);
void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,

7
include/linux/mfd/arizona/registers.h
View File

@ -1186,13 +1186,6 @@
#define ARIZONA_DSP4_SCRATCH_1 0x1441
#define ARIZONA_DSP4_SCRATCH_2 0x1442
#define ARIZONA_DSP4_SCRATCH_3 0x1443
#define ARIZONA_FRF_COEFF_1 0x1700
#define ARIZONA_FRF_COEFF_2 0x1701
#define ARIZONA_FRF_COEFF_3 0x1702
#define ARIZONA_FRF_COEFF_4 0x1703
#define ARIZONA_V2_DAC_COMP_1 0x1704
#define ARIZONA_V2_DAC_COMP_2 0x1705
/*
* Field Definitions.

49
include/linux/mfd/core.h
View File

@ -12,6 +12,35 @@
#include <linux/platform_device.h>
#define MFD_RES_SIZE(arr) (sizeof(arr) / sizeof(struct resource))
#define MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, _compat, _match)\
{ \
.name = (_name), \
.resources = (_res), \
.num_resources = MFD_RES_SIZE((_res)), \
.platform_data = (_pdata), \
.pdata_size = (_pdsize), \
.of_compatible = (_compat), \
.acpi_match = (_match), \
.id = (_id), \
}
#define OF_MFD_CELL(_name, _res, _pdata, _pdsize,_id, _compat) \
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, _compat, NULL) \
#define ACPI_MFD_CELL(_name, _res, _pdata, _pdsize, _id, _match) \
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, NULL, _match) \
#define MFD_CELL_BASIC(_name, _res, _pdata, _pdsize, _id) \
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, NULL, NULL) \
#define MFD_CELL_RES(_name, _res) \
MFD_CELL_ALL(_name, _res, NULL, 0, 0, NULL, NULL) \
#define MFD_CELL_NAME(_name) \
MFD_CELL_ALL(_name, NULL, NULL, 0, 0, NULL, NULL) \
struct irq_domain;
struct property_entry;
@ -30,8 +59,6 @@ struct mfd_cell {
const char *name;
int id;
/* refcounting for multiple drivers to use a single cell */
atomic_t *usage_count;
int (*enable)(struct platform_device *dev);
int (*disable)(struct platform_device *dev);
@ -86,24 +113,6 @@ struct mfd_cell {
extern int mfd_cell_enable(struct platform_device *pdev);
extern int mfd_cell_disable(struct platform_device *pdev);
/*
* "Clone" multiple platform devices for a single cell. This is to be used
* for devices that have multiple users of a cell. For example, if an mfd
* driver wants the cell "foo" to be used by a GPIO driver, an MTD driver,
* and a platform driver, the following bit of code would be use after first
* calling mfd_add_devices():
*
* const char *fclones[] = { "foo-gpio", "foo-mtd" };
* err = mfd_clone_cells("foo", fclones, ARRAY_SIZE(fclones));
*
* Each driver (MTD, GPIO, and platform driver) would then register
* platform_drivers for "foo-mtd", "foo-gpio", and "foo", respectively.
* The cell's .enable/.disable hooks should be used to deal with hardware
* resource contention.
*/
extern int mfd_clone_cell(const char *cell, const char **clones,
size_t n_clones);
/*
* Given a platform device that's been created by mfd_add_devices(), fetch
* the mfd_cell that created it.

4
include/linux/mfd/db8500-prcmu.h
View File

@ -489,7 +489,7 @@ struct prcmu_auto_pm_config {
#ifdef CONFIG_MFD_DB8500_PRCMU
void db8500_prcmu_early_init(u32 phy_base, u32 size);
void db8500_prcmu_early_init(void);
int prcmu_set_rc_a2p(enum romcode_write);
enum romcode_read prcmu_get_rc_p2a(void);
enum ap_pwrst prcmu_get_xp70_current_state(void);
@ -546,7 +546,7 @@ void db8500_prcmu_write_masked(unsigned int reg, u32 mask, u32 value);
#else /* !CONFIG_MFD_DB8500_PRCMU */
static inline void db8500_prcmu_early_init(u32 phy_base, u32 size) {}
static inline void db8500_prcmu_early_init(void) {}
static inline int prcmu_set_rc_a2p(enum romcode_write code)
{

7
include/linux/mfd/dbx500-prcmu.h
View File

@ -190,6 +190,7 @@ enum ddr_pwrst {
#define PRCMU_FW_PROJECT_U8500_MBL2 12 /* Customer specific */
#define PRCMU_FW_PROJECT_U8520 13
#define PRCMU_FW_PROJECT_U8420 14
#define PRCMU_FW_PROJECT_U8420_SYSCLK 17
#define PRCMU_FW_PROJECT_A9420 20
/* [32..63] 9540 and derivatives */
#define PRCMU_FW_PROJECT_U9540 32
@ -211,9 +212,9 @@ struct prcmu_fw_version {
#if defined(CONFIG_UX500_SOC_DB8500)
static inline void prcmu_early_init(u32 phy_base, u32 size)
static inline void prcmu_early_init(void)
{
return db8500_prcmu_early_init(phy_base, size);
return db8500_prcmu_early_init();
}
static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
@ -401,7 +402,7 @@ static inline int prcmu_config_a9wdog(u8 num, bool sleep_auto_off)
}
#else
static inline void prcmu_early_init(u32 phy_base, u32 size) {}
static inline void prcmu_early_init(void) {}
static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
bool keep_ap_pll)

11
include/linux/mfd/madera/core.h
View File

@ -8,6 +8,7 @@
#ifndef MADERA_CORE_H
#define MADERA_CORE_H
#include <linux/clk.h>
#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/mfd/madera/pdata.h>
@ -29,6 +30,13 @@ enum madera_type {
CS42L92 = 9,
};
enum {
MADERA_MCLK1,
MADERA_MCLK2,
MADERA_MCLK3,
MADERA_NUM_MCLK
};
#define MADERA_MAX_CORE_SUPPLIES 2
#define MADERA_MAX_GPIOS 40
@ -155,6 +163,7 @@ struct snd_soc_dapm_context;
* @irq_dev: the irqchip child driver device
* @irq_data: pointer to irqchip data for the child irqchip driver
* @irq: host irq number from SPI or I2C configuration
* @mclk: Structure holding clock supplies
* @out_clamp: indicates output clamp state for each analogue output
* @out_shorted: indicates short circuit state for each analogue output
* @hp_ena: bitflags of enable state for the headphone outputs
@ -184,6 +193,8 @@ struct madera {
struct regmap_irq_chip_data *irq_data;
int irq;
struct clk_bulk_data mclk[MADERA_NUM_MCLK];
unsigned int num_micbias;
unsigned int num_childbias[MADERA_MAX_MICBIAS];

1
include/linux/mfd/max77620.h
View File

@ -329,7 +329,6 @@ struct max77620_chip {
struct regmap *rmap;
int chip_irq;
int irq_base;
/* chip id */
enum max77620_chip_id chip_id;

71
include/linux/mfd/mt6397/rtc.h Normal file
View File

@ -0,0 +1,71 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2014-2019 MediaTek Inc.
*
* Author: Tianping.Fang <tianping.fang@mediatek.com>
* Sean Wang <sean.wang@mediatek.com>
*/
#ifndef _LINUX_MFD_MT6397_RTC_H_
#define _LINUX_MFD_MT6397_RTC_H_
#include <linux/jiffies.h>
#include <linux/mutex.h>
#include <linux/regmap.h>
#include <linux/rtc.h>
#define RTC_BBPU 0x0000
#define RTC_BBPU_CBUSY BIT(6)
#define RTC_BBPU_KEY (0x43 << 8)
#define RTC_WRTGR 0x003c
#define RTC_IRQ_STA 0x0002
#define RTC_IRQ_STA_AL BIT(0)
#define RTC_IRQ_STA_LP BIT(3)
#define RTC_IRQ_EN 0x0004
#define RTC_IRQ_EN_AL BIT(0)
#define RTC_IRQ_EN_ONESHOT BIT(2)
#define RTC_IRQ_EN_LP BIT(3)
#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
#define RTC_AL_MASK 0x0008
#define RTC_AL_MASK_DOW BIT(4)
#define RTC_TC_SEC 0x000a
/* Min, Hour, Dom... register offset to RTC_TC_SEC */
#define RTC_OFFSET_SEC 0
#define RTC_OFFSET_MIN 1
#define RTC_OFFSET_HOUR 2
#define RTC_OFFSET_DOM 3
#define RTC_OFFSET_DOW 4
#define RTC_OFFSET_MTH 5
#define RTC_OFFSET_YEAR 6
#define RTC_OFFSET_COUNT 7
#define RTC_AL_SEC 0x0018
#define RTC_PDN2 0x002e
#define RTC_PDN2_PWRON_ALARM BIT(4)
#define RTC_MIN_YEAR 1968
#define RTC_BASE_YEAR 1900
#define RTC_NUM_YEARS 128
#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
#define MTK_RTC_POLL_DELAY_US 10
#define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ))
struct mt6397_rtc {
struct device *dev;
struct rtc_device *rtc_dev;
/* Protect register access from multiple tasks */
struct mutex lock;
struct regmap *regmap;
int irq;
u32 addr_base;
};
#endif /* _LINUX_MFD_MT6397_RTC_H_ */

2
include/linux/mfd/rk808.h
View File

@ -610,7 +610,7 @@ enum {
RK808_ID = 0x0000,
RK809_ID = 0x8090,
RK817_ID = 0x8170,
RK818_ID = 0x8181,
RK818_ID = 0x8180,
};
struct rk808 {

12
include/linux/mfd/twl.h
View File

@ -181,14 +181,18 @@ static inline int twl_i2c_read_u8(u8 mod_no, u8 *val, u8 reg) {
}
static inline int twl_i2c_write_u16(u8 mod_no, u16 val, u8 reg) {
val = cpu_to_le16(val);
return twl_i2c_write(mod_no, (u8*) &val, reg, 2);
__le16 value;
value = cpu_to_le16(val);
return twl_i2c_write(mod_no, (u8 *) &value, reg, 2);
}
static inline int twl_i2c_read_u16(u8 mod_no, u16 *val, u8 reg) {
int ret;
ret = twl_i2c_read(mod_no, (u8*) val, reg, 2);
*val = le16_to_cpu(*val);
__le16 value;
ret = twl_i2c_read(mod_no, (u8 *) &value, reg, 2);
*val = le16_to_cpu(value);
return ret;
}

19
lib/devres.c
View File

@ -9,6 +9,7 @@
enum devm_ioremap_type {
DEVM_IOREMAP = 0,
DEVM_IOREMAP_NC,
DEVM_IOREMAP_UC,
DEVM_IOREMAP_WC,
};
@ -39,6 +40,9 @@ static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,
case DEVM_IOREMAP_NC:
addr = ioremap_nocache(offset, size);
break;
case DEVM_IOREMAP_UC:
addr = ioremap_uc(offset, size);
break;
case DEVM_IOREMAP_WC:
addr = ioremap_wc(offset, size);
break;
@ -68,6 +72,21 @@ void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
}
EXPORT_SYMBOL(devm_ioremap);
/**
* devm_ioremap_uc - Managed ioremap_uc()
* @dev: Generic device to remap IO address for
* @offset: Resource address to map
* @size: Size of map
*
* Managed ioremap_uc(). Map is automatically unmapped on driver detach.
*/
void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,
resource_size_t size)
{
return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_UC);
}
EXPORT_SYMBOL_GPL(devm_ioremap_uc);
/**
* devm_ioremap_nocache - Managed ioremap_nocache()
* @dev: Generic device to remap IO address for