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A set of fixes for interrupt chip drivers: 

- Revert the platform driver conversion of interrupt chip drivers as it
    turned out to create more problems than it solves.
 
  - Fix a trivial typo in the new module helpers which made probing reliably
    fail.
 
  - Small fixes in the STM32 and MIPS Ingenic drivers
 
  - The TI firmware rework which had badly managed dependencies and had to
    wait post rc1.
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Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Revert the platform driver conversion of interrupt chip drivers as
     it turned out to create more problems than it solves.

   - Fix a trivial typo in the new module helpers which made probing
     reliably fail.

   - Small fixes in the STM32 and MIPS Ingenic drivers

   - The TI firmware rework which had badly managed dependencies and had
     to wait post rc1"

* tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/ingenic: Leave parent IRQ unmasked on suspend
  irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
  irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
  irqchip: Fix probing deferal when using IRQCHIP_PLATFORM_DRIVER helpers
  arm64: dts: k3-am65: Update the RM resource types
  arm64: dts: k3-am65: ti-sci-inta/intr: Update to latest bindings
  arm64: dts: k3-j721e: ti-sci-inta/intr: Update to latest bindings
  irqchip/ti-sci-inta: Add support for INTA directly connecting to GIC
  irqchip/ti-sci-inta: Do not store TISCI device id in platform device id field
  dt-bindings: irqchip: Convert ti, sci-inta bindings to yaml
  dt-bindings: irqchip: ti, sci-inta: Update docs to support different parent.
  irqchip/ti-sci-intr: Add support for INTR being a parent to INTR
  dt-bindings: irqchip: Convert ti, sci-intr bindings to yaml
  dt-bindings: irqchip: ti, sci-intr: Update bindings to drop the usage of gic as parent
  firmware: ti_sci: Add support for getting resource with subtype
  firmware: ti_sci: Drop unused structure ti_sci_rm_type_map
  firmware: ti_sci: Drop the device id to resource type translation
This commit is contained in:
Linus Torvalds 2020-08-30 11:56:54 -07:00
parent 0063a82de9 ceb2465c51
commit d2283cdc18
23 changed files with 534 additions and 394 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt
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@ -1,66 +0,0 @@
Texas Instruments K3 Interrupt Aggregator
=========================================
The Interrupt Aggregator (INTA) provides a centralized machine
which handles the termination of system events to that they can
be coherently processed by the host(s) in the system. A maximum
of 64 events can be mapped to a single interrupt.
Interrupt Aggregator
+-----------------------------------------+
| Intmap VINT |
| +--------------+ +------------+ |
m ------>| | vint | bit | | 0 |.....|63| vint0 |
. | +--------------+ +------------+ | +------+
. | . . | | HOST |
Globalevents ------>| . . |------>| IRQ |
. | . . | | CTRL |
. | . . | +------+
n ------>| +--------------+ +------------+ |
| | vint | bit | | 0 |.....|63| vintx |
| +--------------+ +------------+ |
| |
+-----------------------------------------+
Configuration of these Intmap registers that maps global events to vint is done
by a system controller (like the Device Memory and Security Controller on K3
AM654 SoC). Driver should request the system controller to get the range
of global events and vints assigned to the requesting host. Management
of these requested resources should be handled by driver and requests
system controller to map specific global event to vint, bit pair.
Communication between the host processor running an OS and the system
controller happens through a protocol called TI System Control Interface
(TISCI protocol). For more details refer:
Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
TISCI Interrupt Aggregator Node:
-------------------------------
- compatible: Must be "ti,sci-inta".
- reg: Should contain registers location and length.
- interrupt-controller: Identifies the node as an interrupt controller
- msi-controller: Identifies the node as an MSI controller.
- interrupt-parent: phandle of irq parent.
- ti,sci: Phandle to TI-SCI compatible System controller node.
- ti,sci-dev-id: TISCI device ID of the Interrupt Aggregator.
- ti,sci-rm-range-vint: Array of TISCI subtype ids representing vints(inta
outputs) range within this INTA, assigned to the
requesting host context.
- ti,sci-rm-range-global-event: Array of TISCI subtype ids representing the
global events range reaching this IA and are assigned
to the requesting host context.
Example:
--------
main_udmass_inta: interrupt-controller@33d00000 {
compatible = "ti,sci-inta";
reg = <0x0 0x33d00000 0x0 0x100000>;
interrupt-controller;
msi-controller;
interrupt-parent = <&main_navss_intr>;
ti,sci = <&dmsc>;
ti,sci-dev-id = <179>;
ti,sci-rm-range-vint = <0x0>;
ti,sci-rm-range-global-event = <0x1>;
};

98
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@ -0,0 +1,98 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/ti,sci-inta.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments K3 Interrupt Aggregator
maintainers:
- Lokesh Vutla <lokeshvutla@ti.com>
allOf:
- $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
description: |
The Interrupt Aggregator (INTA) provides a centralized machine
which handles the termination of system events to that they can
be coherently processed by the host(s) in the system. A maximum
of 64 events can be mapped to a single interrupt.
Interrupt Aggregator
+-----------------------------------------+
| Intmap VINT |
| +--------------+ +------------+ |
m ------>| | vint | bit | | 0 |.....|63| vint0 |
. | +--------------+ +------------+ | +------+
. | . . | | HOST |
Globalevents ------>| . . |----->| IRQ |
. | . . | | CTRL |
. | . . | +------+
n ------>| +--------------+ +------------+ |
| | vint | bit | | 0 |.....|63| vintx |
| +--------------+ +------------+ |
| |
+-----------------------------------------+
Configuration of these Intmap registers that maps global events to vint is
done by a system controller (like the Device Memory and Security Controller
on AM654 SoC). Driver should request the system controller to get the range
of global events and vints assigned to the requesting host. Management
of these requested resources should be handled by driver and requests
system controller to map specific global event to vint, bit pair.
Communication between the host processor running an OS and the system
controller happens through a protocol called TI System Control Interface
(TISCI protocol).
properties:
compatible:
const: ti,sci-inta
reg:
maxItems: 1
interrupt-controller: true
msi-controller: true
ti,interrupt-ranges:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
description: |
Interrupt ranges that converts the INTA output hw irq numbers
to parents's input interrupt numbers.
items:
items:
- description: |
"output_irq" specifies the base for inta output irq
- description: |
"parent's input irq" specifies the base for parent irq
- description: |
"limit" specifies the limit for translation
required:
- compatible
- reg
- interrupt-controller
- msi-controller
- ti,sci
- ti,sci-dev-id
- ti,interrupt-ranges
examples:
- |
bus {
#address-cells = <2>;
#size-cells = <2>;
main_udmass_inta: msi-controller@33d00000 {
compatible = "ti,sci-inta";
reg = <0x0 0x33d00000 0x0 0x100000>;
interrupt-controller;
msi-controller;
interrupt-parent = <&main_navss_intr>;
ti,sci = <&dmsc>;
ti,sci-dev-id = <179>;
ti,interrupt-ranges = <0 0 256>;
};
};

82
Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
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@ -1,82 +0,0 @@
Texas Instruments K3 Interrupt Router
=====================================
The Interrupt Router (INTR) module provides a mechanism to mux M
interrupt inputs to N interrupt outputs, where all M inputs are selectable
to be driven per N output. An Interrupt Router can either handle edge triggered
or level triggered interrupts and that is fixed in hardware.
Interrupt Router
+----------------------+
| Inputs Outputs |
+-------+ | +------+ +-----+ |
| GPIO |----------->| | irq0 | | 0 | | Host IRQ
+-------+ | +------+ +-----+ | controller
| . . | +-------+
+-------+ | . . |----->| IRQ |
| INTA |----------->| . . | +-------+
+-------+ | . +-----+ |
| +------+ | N | |
| | irqM | +-----+ |
| +------+ |
| |
+----------------------+
There is one register per output (MUXCNTL_N) that controls the selection.
Configuration of these MUXCNTL_N registers is done by a system controller
(like the Device Memory and Security Controller on K3 AM654 SoC). System
controller will keep track of the used and unused registers within the Router.
Driver should request the system controller to get the range of GIC IRQs
assigned to the requesting hosts. It is the drivers responsibility to keep
track of Host IRQs.
Communication between the host processor running an OS and the system
controller happens through a protocol called TI System Control Interface
(TISCI protocol). For more details refer:
Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
TISCI Interrupt Router Node:
----------------------------
Required Properties:
- compatible: Must be "ti,sci-intr".
- ti,intr-trigger-type: Should be one of the following:
1: If intr supports edge triggered interrupts.
4: If intr supports level triggered interrupts.
- interrupt-controller: Identifies the node as an interrupt controller
- #interrupt-cells: Specifies the number of cells needed to encode an
interrupt source. The value should be 2.
First cell should contain the TISCI device ID of source
Second cell should contain the interrupt source offset
within the device.
- ti,sci: Phandle to TI-SCI compatible System controller node.
- ti,sci-dst-id: TISCI device ID of the destination IRQ controller.
- ti,sci-rm-range-girq: Array of TISCI subtype ids representing the host irqs
assigned to this interrupt router. Each subtype id
corresponds to a range of host irqs.
For more details on TISCI IRQ resource management refer:
https://downloads.ti.com/tisci/esd/latest/2_tisci_msgs/rm/rm_irq.html
Example:
--------
The following example demonstrates both interrupt router node and the consumer
node(main gpio) on the AM654 SoC:
main_intr: interrupt-controller0 {
compatible = "ti,sci-intr";
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <56>;
ti,sci-rm-range-girq = <0x1>;
};
main_gpio0: gpio@600000 {
...
interrupt-parent = <&main_intr>;
interrupts = <57 256>, <57 257>, <57 258>,
<57 259>, <57 260>, <57 261>;
...
};

102
Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml Normal file
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@ -0,0 +1,102 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/ti,sci-intr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments K3 Interrupt Router
maintainers:
- Lokesh Vutla <lokeshvutla@ti.com>
allOf:
- $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
description: |
The Interrupt Router (INTR) module provides a mechanism to mux M
interrupt inputs to N interrupt outputs, where all M inputs are selectable
to be driven per N output. An Interrupt Router can either handle edge
triggered or level triggered interrupts and that is fixed in hardware.
Interrupt Router
+----------------------+
| Inputs Outputs |
+-------+ | +------+ +-----+ |
| GPIO |----------->| | irq0 | | 0 | | Host IRQ
+-------+ | +------+ +-----+ | controller
| . . | +-------+
+-------+ | . . |----->| IRQ |
| INTA |----------->| . . | +-------+
+-------+ | . +-----+ |
| +------+ | N | |
| | irqM | +-----+ |
| +------+ |
| |
+----------------------+
There is one register per output (MUXCNTL_N) that controls the selection.
Configuration of these MUXCNTL_N registers is done by a system controller
(like the Device Memory and Security Controller on K3 AM654 SoC). System
controller will keep track of the used and unused registers within the Router.
Driver should request the system controller to get the range of GIC IRQs
assigned to the requesting hosts. It is the drivers responsibility to keep
track of Host IRQs.
Communication between the host processor running an OS and the system
controller happens through a protocol called TI System Control Interface
(TISCI protocol).
properties:
compatible:
const: ti,sci-intr
ti,intr-trigger-type:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 4]
description: |
Should be one of the following.
1 = If intr supports edge triggered interrupts.
4 = If intr supports level triggered interrupts.
interrupt-controller: true
'#interrupt-cells':
const: 1
description: |
The 1st cell should contain interrupt router input hw number.
ti,interrupt-ranges:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
description: |
Interrupt ranges that converts the INTR output hw irq numbers
to parents's input interrupt numbers.
items:
items:
- description: |
"output_irq" specifies the base for intr output irq
- description: |
"parent's input irq" specifies the base for parent irq
- description: |
"limit" specifies the limit for translation
required:
- compatible
- ti,intr-trigger-type
- interrupt-controller
- '#interrupt-cells'
- ti,sci
- ti,sci-dev-id
- ti,interrupt-ranges
examples:
- |
main_gpio_intr: interrupt-controller0 {
compatible = "ti,sci-intr";
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dev-id = <131>;
ti,interrupt-ranges = <0 360 32>;
};

4
MAINTAINERS
View File

@ -17117,8 +17117,8 @@ S: Maintained
F: Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
F: Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml
F: Documentation/devicetree/bindings/reset/ti,sci-reset.txt
F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
F: drivers/clk/keystone/sci-clk.c

36
arch/arm64/boot/dts/ti/k3-am65-main.dtsi
View File

@ -417,10 +417,10 @@
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <56>;
ti,sci-rm-range-girq = <0x1>;
ti,sci-dev-id = <100>;
ti,interrupt-ranges = <0 392 32>;
};
main_navss {
@ -438,10 +438,11 @@
ti,intr-trigger-type = <4>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <56>;
ti,sci-rm-range-girq = <0x0>, <0x2>;
ti,sci-dev-id = <182>;
ti,interrupt-ranges = <0 64 64>,
<64 448 64>;
};
inta_main_udmass: interrupt-controller@33d00000 {
@ -452,8 +453,7 @@
msi-controller;
ti,sci = <&dmsc>;
ti,sci-dev-id = <179>;
ti,sci-rm-range-vint = <0x0>;
ti,sci-rm-range-global-event = <0x1>;
ti,interrupt-ranges = <0 0 256>;
};
secure_proxy_main: mailbox@32c00000 {
@ -589,7 +589,7 @@
<0x0 0x33000000 0x0 0x40000>;
reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
ti,num-rings = <818>;
ti,sci-rm-range-gp-rings = <0x2>; /* GP ring range */
ti,sci-rm-range-gp-rings = <0x1>; /* GP ring range */
ti,dma-ring-reset-quirk;
ti,sci = <&dmsc>;
ti,sci-dev-id = <187>;
@ -609,11 +609,11 @@
ti,sci-dev-id = <188>;
ti,ringacc = <&ringacc>;
ti,sci-rm-range-tchan = <0x1>, /* TX_HCHAN */
<0x2>; /* TX_CHAN */
ti,sci-rm-range-rchan = <0x4>, /* RX_HCHAN */
<0x5>; /* RX_CHAN */
ti,sci-rm-range-rflow = <0x6>; /* GP RFLOW */
ti,sci-rm-range-tchan = <0xf>, /* TX_HCHAN */
<0xd>; /* TX_CHAN */
ti,sci-rm-range-rchan = <0xb>, /* RX_HCHAN */
<0xa>; /* RX_CHAN */
ti,sci-rm-range-rflow = <0x0>; /* GP RFLOW */
};
cpts@310d0000 {
@ -622,7 +622,7 @@
reg-names = "cpts";
clocks = <&main_cpts_mux>;
clock-names = "cpts";
interrupts-extended = <&intr_main_navss 163 0>;
interrupts-extended = <&intr_main_navss 391>;
interrupt-names = "cpts";
ti,cpts-periodic-outputs = <6>;
ti,cpts-ext-ts-inputs = <8>;
@ -645,8 +645,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&intr_main_gpio>;
interrupts = <57 256>, <57 257>, <57 258>, <57 259>, <57 260>,
<57 261>;
interrupts = <192>, <193>, <194>, <195>, <196>, <197>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <96>;
@ -661,8 +660,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&intr_main_gpio>;
interrupts = <58 256>, <58 257>, <58 258>, <58 259>, <58 260>,
<58 261>;
interrupts = <200>, <201>, <202>, <203>, <204>, <205>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <90>;

12
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
View File

@ -134,7 +134,7 @@
<0x0 0x2a500000 0x0 0x40000>;
reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
ti,num-rings = <286>;
ti,sci-rm-range-gp-rings = <0x2>; /* GP ring range */
ti,sci-rm-range-gp-rings = <0x1>; /* GP ring range */
ti,dma-ring-reset-quirk;
ti,sci = <&dmsc>;
ti,sci-dev-id = <195>;
@ -154,11 +154,11 @@
ti,sci-dev-id = <194>;
ti,ringacc = <&mcu_ringacc>;
ti,sci-rm-range-tchan = <0x1>, /* TX_HCHAN */
<0x2>; /* TX_CHAN */
ti,sci-rm-range-rchan = <0x3>, /* RX_HCHAN */
<0x4>; /* RX_CHAN */
ti,sci-rm-range-rflow = <0x5>; /* GP RFLOW */
ti,sci-rm-range-tchan = <0xf>, /* TX_HCHAN */
<0xd>; /* TX_CHAN */
ti,sci-rm-range-rchan = <0xb>, /* RX_HCHAN */
<0xa>; /* RX_CHAN */
ti,sci-rm-range-rflow = <0x0>; /* GP RFLOW */
};
};

8
arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
View File

@ -74,10 +74,10 @@
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <56>;
ti,sci-rm-range-girq = <0x4>;
ti,sci-dev-id = <156>;
ti,interrupt-ranges = <0 712 16>;
};
wkup_gpio0: wkup_gpio0@42110000 {
@ -86,7 +86,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&intr_wkup_gpio>;
interrupts = <59 128>, <59 129>, <59 130>, <59 131>;
interrupts = <60>, <61>, <62>, <63>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <56>;

4
arch/arm64/boot/dts/ti/k3-am654-base-board.dts
View File

@ -384,7 +384,7 @@
};
&mailbox0_cluster0 {
interrupts = <164 0>;
interrupts = <436>;
mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
ti,mbox-tx = <1 0 0>;
@ -393,7 +393,7 @@
};
&mailbox0_cluster1 {
interrupts = <165 0>;
interrupts = <432>;
mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
ti,mbox-tx = <1 0 0>;

10
arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
View File

@ -287,7 +287,7 @@
};
&mailbox0_cluster0 {
interrupts = <214 0>;
interrupts = <436>;
mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
ti,mbox-rx = <0 0 0>;
@ -301,7 +301,7 @@
};
&mailbox0_cluster1 {
interrupts = <215 0>;
interrupts = <432>;
mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
ti,mbox-rx = <0 0 0>;
@ -315,7 +315,7 @@
};
&mailbox0_cluster2 {
interrupts = <216 0>;
interrupts = <428>;
mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
ti,mbox-rx = <0 0 0>;
@ -329,7 +329,7 @@
};
&mailbox0_cluster3 {
interrupts = <217 0>;
interrupts = <424>;
mbox_c66_0: mbox-c66-0 {
ti,mbox-rx = <0 0 0>;
@ -343,7 +343,7 @@
};
&mailbox0_cluster4 {
interrupts = <218 0>;
interrupts = <420>;
mbox_c71_0: mbox-c71-0 {
ti,mbox-rx = <0 0 0>;

43
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
View File

@ -80,10 +80,10 @@
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <14>;
ti,sci-rm-range-girq = <0x1>;
ti,sci-dev-id = <131>;
ti,interrupt-ranges = <8 392 56>;
};
main_navss {
@ -101,10 +101,12 @@
ti,intr-trigger-type = <4>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <14>;
ti,sci-rm-range-girq = <0>, <2>;
ti,sci-dev-id = <213>;
ti,interrupt-ranges = <0 64 64>,
<64 448 64>,
<128 672 64>;
};
main_udmass_inta: interrupt-controller@33d00000 {
@ -115,8 +117,7 @@
msi-controller;
ti,sci = <&dmsc>;
ti,sci-dev-id = <209>;
ti,sci-rm-range-vint = <0xa>;
ti,sci-rm-range-global-event = <0xd>;
ti,interrupt-ranges = <0 0 256>;
};
secure_proxy_main: mailbox@32c00000 {
@ -296,7 +297,7 @@
reg-names = "cpts";
clocks = <&k3_clks 201 1>;
clock-names = "cpts";
interrupts-extended = <&main_navss_intr 201 0>;
interrupts-extended = <&main_navss_intr 391>;
interrupt-names = "cpts";
ti,cpts-periodic-outputs = <6>;
ti,cpts-ext-ts-inputs = <8>;
@ -688,8 +689,8 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <105 0>, <105 1>, <105 2>, <105 3>,
<105 4>, <105 5>, <105 6>, <105 7>;
interrupts = <256>, <257>, <258>, <259>,
<260>, <261>, <262>, <263>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <128>;
@ -705,7 +706,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <106 0>, <106 1>, <106 2>;
interrupts = <288>, <289>, <290>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <36>;
@ -721,8 +722,8 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <107 0>, <107 1>, <107 2>, <107 3>,
<107 4>, <107 5>, <107 6>, <107 7>;
interrupts = <264>, <265>, <266>, <267>,
<268>, <269>, <270>, <271>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <128>;
@ -738,7 +739,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <108 0>, <108 1>, <108 2>;
interrupts = <292>, <293>, <294>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <36>;
@ -754,8 +755,8 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <109 0>, <109 1>, <109 2>, <109 3>,
<109 4>, <109 5>, <109 6>, <109 7>;
interrupts = <272>, <273>, <274>, <275>,
<276>, <277>, <278>, <279>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <128>;
@ -771,7 +772,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <110 0>, <110 1>, <110 2>;
interrupts = <296>, <297>, <298>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <36>;
@ -787,8 +788,8 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <111 0>, <111 1>, <111 2>, <111 3>,
<111 4>, <111 5>, <111 6>, <111 7>;
interrupts = <280>, <281>, <282>, <283>,
<284>, <285>, <286>, <287>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <128>;
@ -804,7 +805,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <112 0>, <112 1>, <112 2>;
interrupts = <300>, <301>, <302>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <36>;

12
arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
View File

@ -101,10 +101,10 @@
ti,intr-trigger-type = <1>;
interrupt-controller;
interrupt-parent = <&gic500>;
#interrupt-cells = <2>;
#interrupt-cells = <1>;
ti,sci = <&dmsc>;
ti,sci-dst-id = <14>;
ti,sci-rm-range-girq = <0x5>;
ti,sci-dev-id = <137>;
ti,interrupt-ranges = <16 960 16>;
};
wkup_gpio0: gpio@42110000 {
@ -113,8 +113,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&wkup_gpio_intr>;
interrupts = <113 0>, <113 1>, <113 2>,
<113 3>, <113 4>, <113 5>;
interrupts = <103>, <104>, <105>, <106>, <107>, <108>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <84>;
@ -130,8 +129,7 @@
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&wkup_gpio_intr>;
interrupts = <114 0>, <114 1>, <114 2>,
<114 3>, <114 4>, <114 5>;
interrupts = <112>, <113>, <114>, <115>, <116>, <117>;
interrupt-controller;
#interrupt-cells = <2>;
ti,ngpio = <84>;

155
drivers/firmware/ti_sci.c
View File

@ -64,22 +64,6 @@ struct ti_sci_xfers_info {
spinlock_t xfer_lock;
};
/**
* struct ti_sci_rm_type_map - Structure representing TISCI Resource
* management representation of dev_ids.
* @dev_id: TISCI device ID
* @type: Corresponding id as identified by TISCI RM.
*
* Note: This is used only as a work around for using RM range apis
* for AM654 SoC. For future SoCs dev_id will be used as type
* for RM range APIs. In order to maintain ABI backward compatibility
* type is not being changed for AM654 SoC.
*/
struct ti_sci_rm_type_map {
u32 dev_id;
u16 type;
};
/**
* struct ti_sci_desc - Description of SoC integration
* @default_host_id: Host identifier representing the compute entity
@ -87,14 +71,12 @@ struct ti_sci_rm_type_map {
* @max_msgs: Maximum number of messages that can be pending
* simultaneously in the system
* @max_msg_size: Maximum size of data per message that can be handled.
* @rm_type_map: RM resource type mapping structure.
*/
struct ti_sci_desc {
u8 default_host_id;
int max_rx_timeout_ms;
int max_msgs;
int max_msg_size;
struct ti_sci_rm_type_map *rm_type_map;
};
/**
@ -1710,33 +1692,6 @@ fail:
return ret;
}
static int ti_sci_get_resource_type(struct ti_sci_info *info, u16 dev_id,
u16 *type)
{
struct ti_sci_rm_type_map *rm_type_map = info->desc->rm_type_map;
bool found = false;
int i;
/* If map is not provided then assume dev_id is used as type */
if (!rm_type_map) {
*type = dev_id;
return 0;
}
for (i = 0; rm_type_map[i].dev_id; i++) {
if (rm_type_map[i].dev_id == dev_id) {
*type = rm_type_map[i].type;
found = true;
break;
}
}
if (!found)
return -EINVAL;
return 0;
}
/**
* ti_sci_get_resource_range - Helper to get a range of resources assigned
* to a host. Resource is uniquely identified by
@ -1760,7 +1715,6 @@ static int ti_sci_get_resource_range(const struct ti_sci_handle *handle,
struct ti_sci_xfer *xfer;
struct ti_sci_info *info;
struct device *dev;
u16 type;
int ret = 0;
if (IS_ERR(handle))
@ -1780,15 +1734,9 @@ static int ti_sci_get_resource_range(const struct ti_sci_handle *handle,
return ret;
}
ret = ti_sci_get_resource_type(info, dev_id, &type);
if (ret) {
dev_err(dev, "rm type lookup failed for %u\n", dev_id);
goto fail;
}
req = (struct ti_sci_msg_req_get_resource_range *)xfer->xfer_buf;
req->secondary_host = s_host;
req->type = type & MSG_RM_RESOURCE_TYPE_MASK;
req->type = dev_id & MSG_RM_RESOURCE_TYPE_MASK;
req->subtype = subtype & MSG_RM_RESOURCE_SUBTYPE_MASK;
ret = ti_sci_do_xfer(info, xfer);
@ -3260,61 +3208,50 @@ u32 ti_sci_get_num_resources(struct ti_sci_resource *res)
EXPORT_SYMBOL_GPL(ti_sci_get_num_resources);
/**
* devm_ti_sci_get_of_resource() - Get a TISCI resource assigned to a device
* devm_ti_sci_get_resource_sets() - Get a TISCI resources assigned to a device
* @handle: TISCI handle
* @dev: Device pointer to which the resource is assigned
* @dev_id: TISCI device id to which the resource is assigned
* @of_prop: property name by which the resource are represented
* @sub_types: Array of sub_types assigned corresponding to device
* @sets: Number of sub_types
*
* Return: Pointer to ti_sci_resource if all went well else appropriate
* error pointer.
*/
struct ti_sci_resource *
devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop)
static struct ti_sci_resource *
devm_ti_sci_get_resource_sets(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, u32 *sub_types,
u32 sets)
{
struct ti_sci_resource *res;
bool valid_set = false;
u32 resource_subtype;
int i, ret;
res = devm_kzalloc(dev, sizeof(*res), GFP_KERNEL);
if (!res)
return ERR_PTR(-ENOMEM);
ret = of_property_count_elems_of_size(dev_of_node(dev), of_prop,
sizeof(u32));
if (ret < 0) {
dev_err(dev, "%s resource type ids not available\n", of_prop);
return ERR_PTR(ret);
}
res->sets = ret;
res->sets = sets;
res->desc = devm_kcalloc(dev, res->sets, sizeof(*res->desc),
GFP_KERNEL);
if (!res->desc)
return ERR_PTR(-ENOMEM);
for (i = 0; i < res->sets; i++) {
ret = of_property_read_u32_index(dev_of_node(dev), of_prop, i,
&resource_subtype);
if (ret)
return ERR_PTR(-EINVAL);
ret = handle->ops.rm_core_ops.get_range(handle, dev_id,
resource_subtype,
sub_types[i],
&res->desc[i].start,
&res->desc[i].num);
if (ret) {
dev_dbg(dev, "dev = %d subtype %d not allocated for this host\n",
dev_id, resource_subtype);
dev_id, sub_types[i]);
res->desc[i].start = 0;
res->desc[i].num = 0;
continue;
}
dev_dbg(dev, "dev = %d, subtype = %d, start = %d, num = %d\n",
dev_id, resource_subtype, res->desc[i].start,
dev_id, sub_types[i], res->desc[i].start,
res->desc[i].num);
valid_set = true;
@ -3332,6 +3269,62 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
return ERR_PTR(-EINVAL);
}
/**
* devm_ti_sci_get_of_resource() - Get a TISCI resource assigned to a device
* @handle: TISCI handle
* @dev: Device pointer to which the resource is assigned
* @dev_id: TISCI device id to which the resource is assigned
* @of_prop: property name by which the resource are represented
*
* Return: Pointer to ti_sci_resource if all went well else appropriate
* error pointer.
*/
struct ti_sci_resource *
devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop)
{
struct ti_sci_resource *res;
u32 *sub_types;
int sets;
sets = of_property_count_elems_of_size(dev_of_node(dev), of_prop,
sizeof(u32));
if (sets < 0) {
dev_err(dev, "%s resource type ids not available\n", of_prop);
return ERR_PTR(sets);
}
sub_types = kcalloc(sets, sizeof(*sub_types), GFP_KERNEL);
if (!sub_types)
return ERR_PTR(-ENOMEM);
of_property_read_u32_array(dev_of_node(dev), of_prop, sub_types, sets);
res = devm_ti_sci_get_resource_sets(handle, dev, dev_id, sub_types,
sets);
kfree(sub_types);
return res;
}
EXPORT_SYMBOL_GPL(devm_ti_sci_get_of_resource);
/**
* devm_ti_sci_get_resource() - Get a resource range assigned to the device
* @handle: TISCI handle
* @dev: Device pointer to which the resource is assigned
* @dev_id: TISCI device id to which the resource is assigned
* @suub_type: TISCI resource subytpe representing the resource.
*
* Return: Pointer to ti_sci_resource if all went well else appropriate
* error pointer.
*/
struct ti_sci_resource *
devm_ti_sci_get_resource(const struct ti_sci_handle *handle, struct device *dev,
u32 dev_id, u32 sub_type)
{
return devm_ti_sci_get_resource_sets(handle, dev, dev_id, &sub_type, 1);
}
EXPORT_SYMBOL_GPL(devm_ti_sci_get_resource);
static int tisci_reboot_handler(struct notifier_block *nb, unsigned long mode,
void *cmd)
{
@ -3352,17 +3345,6 @@ static const struct ti_sci_desc ti_sci_pmmc_k2g_desc = {
/* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
.max_msgs = 20,
.max_msg_size = 64,
.rm_type_map = NULL,
};
static struct ti_sci_rm_type_map ti_sci_am654_rm_type_map[] = {
{.dev_id = 56, .type = 0x00b}, /* GIC_IRQ */
{.dev_id = 179, .type = 0x000}, /* MAIN_NAV_UDMASS_IA0 */
{.dev_id = 187, .type = 0x009}, /* MAIN_NAV_RA */
{.dev_id = 188, .type = 0x006}, /* MAIN_NAV_UDMAP */
{.dev_id = 194, .type = 0x007}, /* MCU_NAV_UDMAP */
{.dev_id = 195, .type = 0x00a}, /* MCU_NAV_RA */
{.dev_id = 0, .type = 0x000}, /* end of table */
};
/* Description for AM654 */
@ -3373,7 +3355,6 @@ static const struct ti_sci_desc ti_sci_pmmc_am654_desc = {
/* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
.max_msgs = 20,
.max_msg_size = 60,
.rm_type_map = ti_sci_am654_rm_type_map,
};
static const struct of_device_id ti_sci_of_match[] = {

2
drivers/irqchip/Kconfig
View File

@ -425,7 +425,7 @@ config GOLDFISH_PIC
for Goldfish based virtual platforms.
config QCOM_PDC
tristate "QCOM PDC"
bool "QCOM PDC"
depends on ARCH_QCOM
select IRQ_DOMAIN_HIERARCHY
help

2
drivers/irqchip/irq-ingenic.c
View File

@ -125,7 +125,7 @@ static int __init ingenic_intc_of_init(struct device_node *node,
irq_reg_writel(gc, IRQ_MSK(32), JZ_REG_INTC_SET_MASK);
}
if (request_irq(parent_irq, intc_cascade, 0,
if (request_irq(parent_irq, intc_cascade, IRQF_NO_SUSPEND,
"SoC intc cascade interrupt", NULL))
pr_err("Failed to register SoC intc cascade interrupt\n");
return 0;

4
drivers/irqchip/irq-mtk-cirq.c
View File

@ -295,6 +295,4 @@ out_free:
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_cirq)
IRQCHIP_MATCH("mediatek,mtk-cirq", mtk_cirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_cirq)
IRQCHIP_DECLARE(mtk_cirq, "mediatek,mtk-cirq", mtk_cirq_of_init);

4
drivers/irqchip/irq-mtk-sysirq.c
View File

@ -231,6 +231,4 @@ out_free_chip:
kfree(chip_data);
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_sysirq)
IRQCHIP_MATCH("mediatek,mt6577-sysirq", mtk_sysirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_sysirq)
IRQCHIP_DECLARE(mtk_sysirq, "mediatek,mt6577-sysirq", mtk_sysirq_of_init);

14
drivers/irqchip/irq-stm32-exti.c
View File

@ -416,6 +416,16 @@ static void stm32_irq_ack(struct irq_data *d)
irq_gc_unlock(gc);
}
/* directly set the target bit without reading first. */
static inline void stm32_exti_write_bit(struct irq_data *d, u32 reg)
{
struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d);
void __iomem *base = chip_data->host_data->base;
u32 val = BIT(d->hwirq % IRQS_PER_BANK);
writel_relaxed(val, base + reg);
}
static inline u32 stm32_exti_set_bit(struct irq_data *d, u32 reg)
{
struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d);
@ -449,9 +459,9 @@ static void stm32_exti_h_eoi(struct irq_data *d)
raw_spin_lock(&chip_data->rlock);
stm32_exti_set_bit(d, stm32_bank->rpr_ofst);
stm32_exti_write_bit(d, stm32_bank->rpr_ofst);
if (stm32_bank->fpr_ofst != UNDEF_REG)
stm32_exti_set_bit(d, stm32_bank->fpr_ofst);
stm32_exti_write_bit(d, stm32_bank->fpr_ofst);
raw_spin_unlock(&chip_data->rlock);

95
drivers/irqchip/irq-ti-sci-inta.c
View File

@ -8,6 +8,7 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqchip.h>
#include <linux/irqdomain.h>
#include <linux/interrupt.h>
@ -83,6 +84,7 @@ struct ti_sci_inta_vint_desc {
* @vint_mutex: Mutex to protect vint_list
* @base: Base address of the memory mapped IO registers
* @pdev: Pointer to platform device.
* @ti_sci_id: TI-SCI device identifier
*/
struct ti_sci_inta_irq_domain {
const struct ti_sci_handle *sci;
@ -93,6 +95,7 @@ struct ti_sci_inta_irq_domain {
struct mutex vint_mutex;
void __iomem *base;
struct platform_device *pdev;
u32 ti_sci_id;
};
#define to_vint_desc(e, i) container_of(e, struct ti_sci_inta_vint_desc, \
@ -128,6 +131,37 @@ static void ti_sci_inta_irq_handler(struct irq_desc *desc)
chained_irq_exit(irq_desc_get_chip(desc), desc);
}
/**
* ti_sci_inta_xlate_irq() - Translate hwirq to parent's hwirq.
* @inta: IRQ domain corresponding to Interrupt Aggregator
* @irq: Hardware irq corresponding to the above irq domain
*
* Return parent irq number if translation is available else -ENOENT.
*/
static int ti_sci_inta_xlate_irq(struct ti_sci_inta_irq_domain *inta,
u16 vint_id)
{
struct device_node *np = dev_of_node(&inta->pdev->dev);
u32 base, parent_base, size;
const __be32 *range;
int len;
range = of_get_property(np, "ti,interrupt-ranges", &len);
if (!range)
return vint_id;
for (len /= sizeof(*range); len >= 3; len -= 3) {
base = be32_to_cpu(*range++);
parent_base = be32_to_cpu(*range++);
size = be32_to_cpu(*range++);
if (base <= vint_id && vint_id < base + size)
return vint_id - base + parent_base;
}
return -ENOENT;
}
/**
* ti_sci_inta_alloc_parent_irq() - Allocate parent irq to Interrupt aggregator
* @domain: IRQ domain corresponding to Interrupt Aggregator
@ -139,30 +173,52 @@ static struct ti_sci_inta_vint_desc *ti_sci_inta_alloc_parent_irq(struct irq_dom
struct ti_sci_inta_irq_domain *inta = domain->host_data;
struct ti_sci_inta_vint_desc *vint_desc;
struct irq_fwspec parent_fwspec;
struct device_node *parent_node;
unsigned int parent_virq;
u16 vint_id;
u16 vint_id, p_hwirq;
int ret;
vint_id = ti_sci_get_free_resource(inta->vint);
if (vint_id == TI_SCI_RESOURCE_NULL)
return ERR_PTR(-EINVAL);
p_hwirq = ti_sci_inta_xlate_irq(inta, vint_id);
if (p_hwirq < 0) {
ret = p_hwirq;
goto free_vint;
}
vint_desc = kzalloc(sizeof(*vint_desc), GFP_KERNEL);
if (!vint_desc)
return ERR_PTR(-ENOMEM);
if (!vint_desc) {
ret = -ENOMEM;
goto free_vint;
}
vint_desc->domain = domain;
vint_desc->vint_id = vint_id;
INIT_LIST_HEAD(&vint_desc->list);
parent_fwspec.fwnode = of_node_to_fwnode(of_irq_find_parent(dev_of_node(&inta->pdev->dev)));
parent_fwspec.param_count = 2;
parent_fwspec.param[0] = inta->pdev->id;
parent_fwspec.param[1] = vint_desc->vint_id;
parent_node = of_irq_find_parent(dev_of_node(&inta->pdev->dev));
parent_fwspec.fwnode = of_node_to_fwnode(parent_node);
if (of_device_is_compatible(parent_node, "arm,gic-v3")) {
/* Parent is GIC */
parent_fwspec.param_count = 3;
parent_fwspec.param[0] = 0;
parent_fwspec.param[1] = p_hwirq - 32;
parent_fwspec.param[2] = IRQ_TYPE_LEVEL_HIGH;
} else {
/* Parent is Interrupt Router */
parent_fwspec.param_count = 1;
parent_fwspec.param[0] = p_hwirq;
}
parent_virq = irq_create_fwspec_mapping(&parent_fwspec);
if (parent_virq == 0) {
kfree(vint_desc);
return ERR_PTR(-EINVAL);
dev_err(&inta->pdev->dev, "Parent IRQ allocation failed\n");
ret = -EINVAL;
goto free_vint_desc;
}
vint_desc->parent_virq = parent_virq;
@ -171,6 +227,11 @@ static struct ti_sci_inta_vint_desc *ti_sci_inta_alloc_parent_irq(struct irq_dom
ti_sci_inta_irq_handler, vint_desc);
return vint_desc;
free_vint_desc:
kfree(vint_desc);
free_vint:
ti_sci_release_resource(inta->vint, vint_id);
return ERR_PTR(ret);
}
/**
@ -202,7 +263,7 @@ static struct ti_sci_inta_event_desc *ti_sci_inta_alloc_event(struct ti_sci_inta
err = inta->sci->ops.rm_irq_ops.set_event_map(inta->sci,
dev_id, dev_index,
inta->pdev->id,
inta->ti_sci_id,
vint_desc->vint_id,
event_desc->global_event,
free_bit);
@ -299,7 +360,7 @@ static void ti_sci_inta_free_irq(struct ti_sci_inta_event_desc *event_desc,
inta->sci->ops.rm_irq_ops.free_event_map(inta->sci,
HWIRQ_TO_DEVID(hwirq),
HWIRQ_TO_IRQID(hwirq),
inta->pdev->id,
inta->ti_sci_id,
vint_desc->vint_id,
event_desc->global_event,
event_desc->vint_bit);
@ -547,21 +608,21 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
return ret;
}
ret = of_property_read_u32(dev->of_node, "ti,sci-dev-id", &pdev->id);
ret = of_property_read_u32(dev->of_node, "ti,sci-dev-id", &inta->ti_sci_id);
if (ret) {
dev_err(dev, "missing 'ti,sci-dev-id' property\n");
return -EINVAL;
}
inta->vint = devm_ti_sci_get_of_resource(inta->sci, dev, pdev->id,
"ti,sci-rm-range-vint");
inta->vint = devm_ti_sci_get_resource(inta->sci, dev, inta->ti_sci_id,
TI_SCI_RESASG_SUBTYPE_IA_VINT);
if (IS_ERR(inta->vint)) {
dev_err(dev, "VINT resource allocation failed\n");
return PTR_ERR(inta->vint);
}
inta->global_event = devm_ti_sci_get_of_resource(inta->sci, dev, pdev->id,
"ti,sci-rm-range-global-event");
inta->global_event = devm_ti_sci_get_resource(inta->sci, dev, inta->ti_sci_id,
TI_SCI_RESASG_SUBTYPE_GLOBAL_EVENT_SEVT);
if (IS_ERR(inta->global_event)) {
dev_err(dev, "Global event resource allocation failed\n");
return PTR_ERR(inta->global_event);
@ -592,6 +653,8 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&inta->vint_list);
mutex_init(&inta->vint_mutex);
dev_info(dev, "Interrupt Aggregator domain %d created\n", pdev->id);
return 0;
}

152
drivers/irqchip/irq-ti-sci-intr.c
View File

@ -17,29 +17,20 @@
#include <linux/of_irq.h>
#include <linux/soc/ti/ti_sci_protocol.h>
#define TI_SCI_DEV_ID_MASK 0xffff
#define TI_SCI_DEV_ID_SHIFT 16
#define TI_SCI_IRQ_ID_MASK 0xffff
#define TI_SCI_IRQ_ID_SHIFT 0
#define HWIRQ_TO_DEVID(hwirq) (((hwirq) >> (TI_SCI_DEV_ID_SHIFT)) & \
(TI_SCI_DEV_ID_MASK))
#define HWIRQ_TO_IRQID(hwirq) ((hwirq) & (TI_SCI_IRQ_ID_MASK))
#define TO_HWIRQ(dev, index) ((((dev) & TI_SCI_DEV_ID_MASK) << \
TI_SCI_DEV_ID_SHIFT) | \
((index) & TI_SCI_IRQ_ID_MASK))
/**
* struct ti_sci_intr_irq_domain - Structure representing a TISCI based
* Interrupt Router IRQ domain.
* @sci: Pointer to TISCI handle
* @dst_irq: TISCI resource pointer representing GIC irq controller.
* @dst_id: TISCI device ID of the GIC irq controller.
* @out_irqs: TISCI resource pointer representing INTR irqs.
* @dev: Struct device pointer.
* @ti_sci_id: TI-SCI device identifier
* @type: Specifies the trigger type supported by this Interrupt Router
*/
struct ti_sci_intr_irq_domain {
const struct ti_sci_handle *sci;
struct ti_sci_resource *dst_irq;
u32 dst_id;
struct ti_sci_resource *out_irqs;
struct device *dev;
u32 ti_sci_id;
u32 type;
};
@ -70,15 +61,44 @@ static int ti_sci_intr_irq_domain_translate(struct irq_domain *domain,
{
struct ti_sci_intr_irq_domain *intr = domain->host_data;
if (fwspec->param_count != 2)
if (fwspec->param_count != 1)
return -EINVAL;
*hwirq = TO_HWIRQ(fwspec->param[0], fwspec->param[1]);
*hwirq = fwspec->param[0];
*type = intr->type;
return 0;
}
/**
* ti_sci_intr_xlate_irq() - Translate hwirq to parent's hwirq.
* @intr: IRQ domain corresponding to Interrupt Router
* @irq: Hardware irq corresponding to the above irq domain
*
* Return parent irq number if translation is available else -ENOENT.
*/
static int ti_sci_intr_xlate_irq(struct ti_sci_intr_irq_domain *intr, u32 irq)
{
struct device_node *np = dev_of_node(intr->dev);
u32 base, pbase, size, len;
const __be32 *range;
range = of_get_property(np, "ti,interrupt-ranges", &len);
if (!range)
return irq;
for (len /= sizeof(*range); len >= 3; len -= 3) {
base = be32_to_cpu(*range++);
pbase = be32_to_cpu(*range++);
size = be32_to_cpu(*range++);
if (base <= irq && irq < base + size)
return irq - base + pbase;
}
return -ENOENT;
}
/**
* ti_sci_intr_irq_domain_free() - Free the specified IRQs from the domain.
* @domain: Domain to which the irqs belong
@ -89,66 +109,76 @@ static void ti_sci_intr_irq_domain_free(struct irq_domain *domain,
unsigned int virq, unsigned int nr_irqs)
{
struct ti_sci_intr_irq_domain *intr = domain->host_data;
struct irq_data *data, *parent_data;
u16 dev_id, irq_index;
struct irq_data *data;
int out_irq;
parent_data = irq_domain_get_irq_data(domain->parent, virq);
data = irq_domain_get_irq_data(domain, virq);
irq_index = HWIRQ_TO_IRQID(data->hwirq);
dev_id = HWIRQ_TO_DEVID(data->hwirq);
out_irq = (uintptr_t)data->chip_data;
intr->sci->ops.rm_irq_ops.free_irq(intr->sci, dev_id, irq_index,
intr->dst_id, parent_data->hwirq);
ti_sci_release_resource(intr->dst_irq, parent_data->hwirq);
intr->sci->ops.rm_irq_ops.free_irq(intr->sci,
intr->ti_sci_id, data->hwirq,
intr->ti_sci_id, out_irq);
ti_sci_release_resource(intr->out_irqs, out_irq);
irq_domain_free_irqs_parent(domain, virq, 1);
irq_domain_reset_irq_data(data);
}
/**
* ti_sci_intr_alloc_gic_irq() - Allocate GIC specific IRQ
* ti_sci_intr_alloc_parent_irq() - Allocate parent IRQ
* @domain: Pointer to the interrupt router IRQ domain
* @virq: Corresponding Linux virtual IRQ number
* @hwirq: Corresponding hwirq for the IRQ within this IRQ domain
*
* Returns 0 if all went well else appropriate error pointer.
* Returns parent irq if all went well else appropriate error pointer.
*/
static int ti_sci_intr_alloc_gic_irq(struct irq_domain *domain,
unsigned int virq, u32 hwirq)
static int ti_sci_intr_alloc_parent_irq(struct irq_domain *domain,
unsigned int virq, u32 hwirq)
{
struct ti_sci_intr_irq_domain *intr = domain->host_data;
struct device_node *parent_node;
struct irq_fwspec fwspec;
u16 dev_id, irq_index;
u16 dst_irq;
int err;
u16 out_irq, p_hwirq;
int err = 0;
dev_id = HWIRQ_TO_DEVID(hwirq);
irq_index = HWIRQ_TO_IRQID(hwirq);
dst_irq = ti_sci_get_free_resource(intr->dst_irq);
if (dst_irq == TI_SCI_RESOURCE_NULL)
out_irq = ti_sci_get_free_resource(intr->out_irqs);
if (out_irq == TI_SCI_RESOURCE_NULL)
return -EINVAL;
fwspec.fwnode = domain->parent->fwnode;
fwspec.param_count = 3;
fwspec.param[0] = 0; /* SPI */
fwspec.param[1] = dst_irq - 32; /* SPI offset */
fwspec.param[2] = intr->type;
p_hwirq = ti_sci_intr_xlate_irq(intr, out_irq);
if (p_hwirq < 0)
goto err_irqs;
parent_node = of_irq_find_parent(dev_of_node(intr->dev));
fwspec.fwnode = of_node_to_fwnode(parent_node);
if (of_device_is_compatible(parent_node, "arm,gic-v3")) {
/* Parent is GIC */
fwspec.param_count = 3;
fwspec.param[0] = 0; /* SPI */
fwspec.param[1] = p_hwirq - 32; /* SPI offset */
fwspec.param[2] = intr->type;
} else {
/* Parent is Interrupt Router */
fwspec.param_count = 1;
fwspec.param[0] = p_hwirq;
}
err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
if (err)
goto err_irqs;
err = intr->sci->ops.rm_irq_ops.set_irq(intr->sci, dev_id, irq_index,
intr->dst_id, dst_irq);
err = intr->sci->ops.rm_irq_ops.set_irq(intr->sci,
intr->ti_sci_id, hwirq,
intr->ti_sci_id, out_irq);
if (err)
goto err_msg;
return 0;
return p_hwirq;
err_msg:
irq_domain_free_irqs_parent(domain, virq, 1);
err_irqs:
ti_sci_release_resource(intr->dst_irq, dst_irq);
ti_sci_release_resource(intr->out_irqs, out_irq);
return err;
}
@ -168,18 +198,19 @@ static int ti_sci_intr_irq_domain_alloc(struct irq_domain *domain,
struct irq_fwspec *fwspec = data;
unsigned long hwirq;
unsigned int flags;
int err;
int err, p_hwirq;
err = ti_sci_intr_irq_domain_translate(domain, fwspec, &hwirq, &flags);
if (err)
return err;
err = ti_sci_intr_alloc_gic_irq(domain, virq, hwirq);
if (err)
return err;
p_hwirq = ti_sci_intr_alloc_parent_irq(domain, virq, hwirq);
if (p_hwirq < 0)
return p_hwirq;
irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
&ti_sci_intr_irq_chip, NULL);
&ti_sci_intr_irq_chip,
(void *)(uintptr_t)p_hwirq);
return 0;
}
@ -214,6 +245,7 @@ static int ti_sci_intr_irq_domain_probe(struct platform_device *pdev)
if (!intr)
return -ENOMEM;
intr->dev = dev;
ret = of_property_read_u32(dev_of_node(dev), "ti,intr-trigger-type",
&intr->type);
if (ret) {
@ -230,19 +262,19 @@ static int ti_sci_intr_irq_domain_probe(struct platform_device *pdev)
return ret;
}
ret = of_property_read_u32(dev_of_node(dev), "ti,sci-dst-id",
&intr->dst_id);
ret = of_property_read_u32(dev_of_node(dev), "ti,sci-dev-id",
&intr->ti_sci_id);
if (ret) {
dev_err(dev, "missing 'ti,sci-dst-id' property\n");
dev_err(dev, "missing 'ti,sci-dev-id' property\n");
return -EINVAL;
}
intr->dst_irq = devm_ti_sci_get_of_resource(intr->sci, dev,
intr->dst_id,
"ti,sci-rm-range-girq");
if (IS_ERR(intr->dst_irq)) {
intr->out_irqs = devm_ti_sci_get_resource(intr->sci, dev,
intr->ti_sci_id,
TI_SCI_RESASG_SUBTYPE_IR_OUTPUT);
if (IS_ERR(intr->out_irqs)) {
dev_err(dev, "Destination irq resource allocation failed\n");
return PTR_ERR(intr->dst_irq);
return PTR_ERR(intr->out_irqs);
}
domain = irq_domain_add_hierarchy(parent_domain, 0, 0, dev_of_node(dev),
@ -252,6 +284,8 @@ static int ti_sci_intr_irq_domain_probe(struct platform_device *pdev)
return -ENOMEM;
}
dev_info(dev, "Interrupt Router %d domain created\n", intr->ti_sci_id);
return 0;
}

2
drivers/irqchip/irqchip.c
View File

@ -52,7 +52,7 @@ int platform_irqchip_probe(struct platform_device *pdev)
* interrupt controller. The actual initialization callback of this
* interrupt controller can check for specific domains as necessary.
*/
if (par_np && !irq_find_matching_host(np, DOMAIN_BUS_ANY))
if (par_np && !irq_find_matching_host(par_np, DOMAIN_BUS_ANY))
return -EPROBE_DEFER;
return irq_init_cb(np, par_np);

8
drivers/irqchip/qcom-pdc.c
View File

@ -11,11 +11,9 @@
#include <linux/irqdomain.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/soc/qcom/irq.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
@ -432,8 +430,4 @@ fail:
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(qcom_pdc)
IRQCHIP_MATCH("qcom,pdc", qcom_pdc_init)
IRQCHIP_PLATFORM_DRIVER_END(qcom_pdc)
MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Power Domain Controller");
MODULE_LICENSE("GPL v2");
IRQCHIP_DECLARE(qcom_pdc, "qcom,pdc", qcom_pdc_init);

13
include/linux/soc/ti/ti_sci_protocol.h
View File

@ -220,6 +220,9 @@ struct ti_sci_rm_core_ops {
u16 *range_start, u16 *range_num);
};
#define TI_SCI_RESASG_SUBTYPE_IR_OUTPUT 0
#define TI_SCI_RESASG_SUBTYPE_IA_VINT 0xa
#define TI_SCI_RESASG_SUBTYPE_GLOBAL_EVENT_SEVT 0xd
/**
* struct ti_sci_rm_irq_ops: IRQ management operations
* @set_irq: Set an IRQ route between the requested source
@ -556,6 +559,9 @@ u32 ti_sci_get_num_resources(struct ti_sci_resource *res);
struct ti_sci_resource *
devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop);
struct ti_sci_resource *
devm_ti_sci_get_resource(const struct ti_sci_handle *handle, struct device *dev,
u32 dev_id, u32 sub_type);
#else /* CONFIG_TI_SCI_PROTOCOL */
@ -609,6 +615,13 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
{
return ERR_PTR(-EINVAL);
}
static inline struct ti_sci_resource *
devm_ti_sci_get_resource(const struct ti_sci_handle *handle, struct device *dev,
u32 dev_id, u32 sub_type);
{
return ERR_PTR(-EINVAL);
}
#endif /* CONFIG_TI_SCI_PROTOCOL */
#endif /* __TISCI_PROTOCOL_H */