Commit Graph

214 Commits

Author SHA1 Message Date
Guodong Liu 2d5446da5a pinctrl: mediatek: fix global-out-of-bounds issue
When eint virtual eint number is greater than gpio number,
it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue.

Signed-off-by: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20211110071900.4490-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-11-24 09:38:44 +01:00
Sam Shih 360de67280 pinctrl: mediatek: add support for MT7986 SoC
This commit includes pinctrl driver for Mediatek MT7986

The difference of pinctrl between mt7986a and mt7986b
is that pin-41 to pin-65 do not exist on mt7986b

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20211022124036.5291-3-sam.shih@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-10-24 23:06:32 +02:00
Zhiyong Tao 387292c357 pinctrl: mediatek: add rsel setting on MT8195
I2C pins's resistance value can be controlled by rsel register.
This patch provides rsel (resistance selection) setting on MT8195

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210924080632.28410-6-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-10-03 00:43:36 +02:00
Zhiyong Tao fb34a9ae38 pinctrl: mediatek: support rsel feature
This patch supports rsel(resistance selection) feature for I2C pins.
It provides more resistance selection solution in different ICs.
It provides rsel define and si unit solution by identifying
"mediatek,rsel_resistance_in_si_unit" property in pio dtsi node.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210924080632.28410-5-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-10-03 00:43:36 +02:00
Zhiyong Tao 25a74c0f4b pinctrl: mediatek: fix coding style
Fix Camel spelling coding style to avoid checkpatch
warning in a following patch.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210924080632.28410-4-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-10-03 00:43:36 +02:00
Zhiyong Tao d9608eab1e pinctrl: mediatek: mt8195: Add pm_ops
Setting this up will configure wake from suspend properly,
and wake only for the interrupts that are setup in wake_mask,
not all interrupts.

Fixes: 6cf5e9ef36 ("pinctrl: add pinctrl driver on mt8195")
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20210911071046.17349-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-09-17 00:32:24 +02:00
Sam Shih d8b94c9ff9 pinctrl: mediatek: moore: check if pin_desc is valid before use
Certain SoC are missing the middle part gpios in consecutive pins,
it's better to check if mtk_pin_desc is a valid pin for the extensibility

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Link: https://lore.kernel.org/r/20210914085137.31761-5-sam.shih@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-09-16 12:06:28 +02:00
Linus Torvalds c793011242 This is the bulk of pin control changes for the v5.15 kernel cycle,
no core changes at all this time, just driver work!
 
 New drivers:
 
 - New subdriver for Intel Keem Bay (an ARM-based SoC)
 
 - New subdriver for Qualcomm MDM9607 and SM6115
 
 - New subdriver for ST Microelectronics STM32MP135
 
 - New subdriver for Freescale i.MX8ULP ("Ultra Low Power")
 
 - New subdriver for Ingenic X2100
 
 - Support for Qualcomm PMC8180, PMC8180C, SA8155p-adp PMIC GPIO
 
 - Support Samsung Exynos850
 
 - Support Renesas RZ/G2L
 
 Enhancements:
 
 - A major refactoring of the Rockchip driver, breaking part of it out
   to a separate GPIO driver in drivers/gpio
 
 - Pin bias support on Renesas r8a77995
 
 - Add SCI pins support to Ingenic JZ4755 and JZ4760
 
 - Mediatek device tree bindings converted to YAML
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Merge tag 'pinctrl-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.15 kernel cycle, no
  core changes at all this time, just driver work!

  New drivers:

   - New subdriver for Intel Keem Bay (an ARM-based SoC)

   - New subdriver for Qualcomm MDM9607 and SM6115

   - New subdriver for ST Microelectronics STM32MP135

   - New subdriver for Freescale i.MX8ULP ("Ultra Low Power")

   - New subdriver for Ingenic X2100

   - Support for Qualcomm PMC8180, PMC8180C, SA8155p-adp PMIC GPIO

   - Support Samsung Exynos850

   - Support Renesas RZ/G2L

  Enhancements:

   - A major refactoring of the Rockchip driver, breaking part of it out
     to a separate GPIO driver in drivers/gpio

   - Pin bias support on Renesas r8a77995

   - Add SCI pins support to Ingenic JZ4755 and JZ4760

   - Mediatek device tree bindings converted to YAML"

* tag 'pinctrl-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (53 commits)
  pinctrl: renesas: Add RZ/G2L pin and gpio controller driver
  pinctrl: samsung: Add Exynos850 SoC specific data
  dt-bindings: pinctrl: samsung: Add Exynos850 doc
  MAINTAINERS: Add maintainers for amd-pinctrl driver
  pinctrl: Add Intel Keem Bay pinctrl driver
  dt-bindings: pinctrl: Add bindings for Intel Keembay pinctrl driver
  pinctrl: zynqmp: Drop pinctrl_unregister for devm_ registered device
  dt-bindings: pinctrl: qcom-pmic-gpio: Remove the interrupts property
  dt-bindings: pinctrl: qcom-pmic-gpio: Convert qcom pmic gpio bindings to YAML
  dt-bindings: pinctrl: mt8195: Use real world values for drive-strength arguments
  dt-bindings: mediatek: convert pinctrl to yaml
  arm: dts: mt8183: Move pinfunc to include/dt-bindings/pinctrl
  arm: dts: mt8135: Move pinfunc to include/dt-bindings/pinctrl
  pinctrl: ingenic: Add .max_register in regmap_config
  pinctrl: ingenic: Fix bias config for X2000(E)
  pinctrl: ingenic: Fix incorrect pull up/down info
  pinctrl: Ingenic: Add pinctrl driver for X2100.
  dt-bindings: pinctrl: Add bindings for Ingenic X2100.
  pinctrl: Ingenic: Add SSI pins support for JZ4755 and JZ4760.
  pinctrl: Ingenic: Improve the code.
  ...
2021-09-02 14:22:56 -07:00
Linus Torvalds 7d6e3fa87e Updates to the interrupt core and driver subsystems:
Core changes:
 
    - The usual set of small fixes and improvements all over the place, but nothing
      outstanding
 
 MSI changes:
 
    - Further consolidation of the PCI/MSI interrupt chip code
 
    - Make MSI sysfs code independent of PCI/MSI and expose the MSI interrupts
      of platform devices in the same way as PCI exposes them.
 
 Driver changes:
 
    - Support for ARM GICv3 EPPI partitions
 
    - Treewide conversion to generic_handle_domain_irq() for all chained
      interrupt controllers
 
    - Conversion to bitmap_zalloc() throughout the irq chip drivers
 
    - The usual set of small fixes and improvements
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Merge tag 'irq-core-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates to the interrupt core and driver subsystems:

  Core changes:

   - The usual set of small fixes and improvements all over the place,
     but nothing stands out

  MSI changes:

   - Further consolidation of the PCI/MSI interrupt chip code

   - Make MSI sysfs code independent of PCI/MSI and expose the MSI
     interrupts of platform devices in the same way as PCI exposes them.

  Driver changes:

   - Support for ARM GICv3 EPPI partitions

   - Treewide conversion to generic_handle_domain_irq() for all chained
     interrupt controllers

   - Conversion to bitmap_zalloc() throughout the irq chip drivers

   - The usual set of small fixes and improvements"

* tag 'irq-core-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
  platform-msi: Add ABI to show msi_irqs of platform devices
  genirq/msi: Move MSI sysfs handling from PCI to MSI core
  genirq/cpuhotplug: Demote debug printk to KERN_DEBUG
  irqchip/qcom-pdc: Trim unused levels of the interrupt hierarchy
  irqdomain: Export irq_domain_disconnect_hierarchy()
  irqchip/gic-v3: Fix priority comparison when non-secure priorities are used
  irqchip/apple-aic: Fix irq_disable from within irq handlers
  pinctrl/rockchip: drop the gpio related codes
  gpio/rockchip: drop irq_gc_lock/irq_gc_unlock for irq set type
  gpio/rockchip: support next version gpio controller
  gpio/rockchip: use struct rockchip_gpio_regs for gpio controller
  gpio/rockchip: add driver for rockchip gpio
  dt-bindings: gpio: change items restriction of clock for rockchip,gpio-bank
  pinctrl/rockchip: add pinctrl device to gpio bank struct
  pinctrl/rockchip: separate struct rockchip_pin_bank to a head file
  pinctrl/rockchip: always enable clock for gpio controller
  genirq: Fix kernel doc indentation
  EDAC/altera: Convert to generic_handle_domain_irq()
  powerpc: Bulk conversion to generic_handle_domain_irq()
  nios2: Bulk conversion to generic_handle_domain_irq()
  ...
2021-08-30 14:38:37 -07:00
Marc Zyngier a9cb09b7be pinctrl: Bulk conversion to generic_handle_domain_irq()
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-08-12 11:39:39 +01:00
kernel test robot 1ac1f6459d pinctrl: mediatek: fix platform_no_drv_owner.cocci warnings
drivers/pinctrl/mediatek/pinctrl-mt8365.c:488:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Fixes: e94d8b6fb8 ("pinctrl: mediatek: add support for mt8365 SoC")
CC: Fabien Parent <fparent@baylibre.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20210626051550.GA37544@d0c207d51ce8
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-23 18:11:30 +02:00
Hsin-Yi Wang 798a315fc3 pinctrl: mediatek: Fix fallback behavior for bias_set_combo
Some pin doesn't support PUPD register, if it fails and fallbacks with
bias_set_combo case, it will call mtk_pinconf_bias_set_pupd_r1_r0() to
modify the PUPD pin again.

Since the general bias set are either PU/PD or PULLSEL/PULLEN, try
bias_set or bias_set_rev1 for the other fallback case. If the pin
doesn't support neither PU/PD nor PULLSEL/PULLEN, it will return
-ENOTSUPP.

Fixes: 81bd1579b4 ("pinctrl: mediatek: Fix fallback call path")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Link: https://lore.kernel.org/r/20210701080955.2660294-1-hsinyi@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-23 17:41:56 +02:00
Matthias Brugger 21c423a651 pinctrl: mediatek: fix mode encoding
Pin modes are encoded in the SoC data structure. Use that value to set
IES SMT.

Cc: Fabien Parent <fparent@baylibre.com>
Cc: Sean Wang <sean.wang@kernel.org>
Cc: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Cc: linux-mediatek@lists.infradead.org
Fixes: 696beef775 ("pinctrl: mediatek: move bit assignment")
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Link: https://lore.kernel.org/r/20210608150656.29007-1-matthias.bgg@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-09 15:30:45 +02:00
Linus Walleij 375eede3e3 pinctrl: mtk: Fix mt8365 Kconfig dependency
This SoC needs to select PINCTRL_MTK or we can end up in
kernel compiles that miss some symbols.

Cc: Fabien Parent <fparent@baylibre.com>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: e94d8b6fb8 ("pinctrl: mediatek: add support for mt8365 SoC")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-06-07 08:56:20 +02:00
Linus Walleij 696beef775 pinctrl: mediatek: move bit assignment
The bit needs offset to be defined which happens some lines
below. Looks like a bug. The kernel test robot complains:

drivers/pinctrl/mediatek/pinctrl-mtk-common.c:137:12:
warning: variable 'offset' is uninitialized when used here [-Wuninitialized]
           bit = BIT(offset & pctl->devdata->mode_mask);
                     ^~~~~~

Fix it up by reverting to what was done before.

Cc: Fabien Parent <fparent@baylibre.com>
Cc: Sean Wang <sean.wang@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Cc: linux-mediatek@lists.infradead.org
Fixes: 9f940d8ecf ("pinctrl: mediatek: don't hardcode mode encoding in common code")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-28 11:19:10 +02:00
Fabien Parent e94d8b6fb8 pinctrl: mediatek: add support for mt8365 SoC
Add pinctrl driver for MT8365 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20210519162409.3755679-3-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-27 16:50:15 +02:00
Fabien Parent 9f940d8ecf pinctrl: mediatek: don't hardcode mode encoding in common code
MT8365 encode the pins mode differently than other
MTK pinctrl drivers that use the PINCTRL_MTK common code.

Add 3 new fields in mtk_pinctrl_devdata in order to store how
pin modes are encoded into the register. At the
same time update all the pinctrl driver that depends on
CONFIG_PINCTRL_MTK.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20210519162409.3755679-2-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-27 16:50:15 +02:00
Tzung-Bi Shih 56ab29ec6f pinctrl: mediatek: use spin lock in mtk_rmw
Commit 42a46434e9 ("pinctrl: add lock in mtk_rmw function.") uses
mutex lock in mtk_rmw.  However the function is possible called from
atomic context.

For example call trace:
  mutex_lock+0x28/0x64
  mtk_rmw+0x38/0x80
  [snip]
  max98357a_daiops_trigger+0x8c/0x9c
  soc_pcm_trigger+0x5c/0x10c

The max98357a_daiops_trigger() could run in either atomic or non-atomic
context.  As a result, dmesg shows some similar messages: "BUG: sleeping
function called from invalid context at kernel/locking/mutex.c:254".

Uses spin lock in mtk_rmw instead.

Fixes: 42a46434e9 ("pinctrl: add lock in mtk_rmw function.")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210419093449.3125704-1-tzungbi@google.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-22 01:53:29 +02:00
Zhiyong Tao ea9d2ed465 pinctrl: add drive for I2C related pins on MT8195
This patch provides the advanced drive raw data setting version
for I2C used pins on MT8195.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20210413055702.27535-4-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-22 01:53:02 +02:00
Zhiyong Tao 6cf5e9ef36 pinctrl: add pinctrl driver on mt8195
This commit includes pinctrl driver for mt8195.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20210413055702.27535-3-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-22 01:53:02 +02:00
Zhiyong Tao 42a46434e9 pinctrl: add lock in mtk_rmw function.
When multiple threads operate on the same register resource
which include multiple pin, It will make the register resource
wrong to control. So we add lock to avoid the case.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Link: https://lore.kernel.org/r/20210321033150.15380-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-03-25 10:14:50 +01:00
Linus Torvalds 3b9cdafb53 This is the bulk of pin control changes for the v5.12 kernel.
This time a calm set with no core changes.
 
 New drivers/subdrivers:
 
 - Renesas R8A7790A0 pin controller.
 
 - Allwinner H616 and H616-R pin controllers.
 
 - Qualcomm SM8350 and SC8180x pin controllers.
 
 Improvements:
 
 - Redo the DT bindings for Ralink RT2880.
 
 - A common Qualcomm TLMM DT binding in YAML.
 
 - Delete the unused drivers for U300, COH901, Sirf Atlas, and ZTE ZX.
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Merge tag 'pinctrl-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.12 kernel.

  This time a calm set with no core changes.

  New drivers/subdrivers:

   - Renesas R8A7790A0 pin controller.

   - Allwinner H616 and H616-R pin controllers.

   - Qualcomm SM8350 and SC8180x pin controllers.

  Improvements:

   - Redo the DT bindings for Ralink RT2880.

   - A common Qualcomm TLMM DT binding in YAML.

   - Delete the unused drivers for U300, COH901, Sirf Atlas, and ZTE ZX"

* tag 'pinctrl-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (71 commits)
  pinctrl: mediatek: Fix trigger type setting follow for unexpected interrupt
  dt-bindings: pinctrl: Group tuples in pin control properties
  pinctrl: nuvoton: npcm7xx: Fix alignment of table header comment
  pinctrl: at91-pio4: fix "Prefer 'unsigned int' to bare use of 'unsigned'"
  pinctrl: at91-pio4: add support for slew-rate
  dt-bindings: pinctrl: at91-pio4: add slew-rate
  pinctrl: actions: Add depends on || COMPILE_TEST
  pinctrl: single: set function name when adding function
  pinctrl: qcom: Add sc8180x TLMM driver
  dt-bindings: pinctrl: qcom: Add sc8180x binding
  dt-bindings: pinctrl: qcom: Define common TLMM binding
  pinctrl: qcom: Add SM8350 pinctrl driver
  dt-bindings: pinctrl: qcom: Add SM8350 pinctrl bindings
  pinctrl: samsung: use raw_spinlock for s3c64xx
  dt-bindings: mediatek: mt8192: Fix dt_binding_check warning
  pinctrl: qcom: spmi-mpp: Add PM8019 compatible
  pinctrl: pinmux: add function selector to pinmux-functions
  pinctrl: samsung: use raw_spinlock for locking
  pinctrl: clarify #pinctrl-cells for pinctrl-single,pins
  pinctrl: actions: Add the platform dependency to drivers
  ...
2021-02-22 18:39:11 -08:00
Hailong Fan b40b760aa2 pinctrl: mediatek: Fix trigger type setting follow for unexpected interrupt
When flipping the polarity will be generated interrupt under certain
circumstances, but GPIO external signal has not changed.
Then, mask the interrupt before polarity setting, and clear the
unexpected interrupt after trigger type setting completed.

Remove mtk_eint_flip_edge: because mtk_eint_unmask already calls it.

Signed-off-by: Hailong Fan <hailong.fan@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Link: https://lore.kernel.org/r/20210125041753.2214-1-hailong.fan@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-02-15 05:52:01 +01:00
Hsin-Yi Wang 81bd1579b4 pinctrl: mediatek: Fix fallback call path
Some SoCs, eg. mt8183, are using a pinconfig operation bias_set_combo.
The fallback path in mtk_pinconf_adv_pull_set() should also try this
operation.

Fixes: cafe19db77 ("pinctrl: mediatek: Backward compatible to previous Mediatek's bias-pull usage")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20201228090425.2130569-1-hsinyi@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-06 00:20:31 +01:00
Zheng Yongjun 0014d7a9c0 pinctrl: mediatek: moore: convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201211084801.2425-1-zhengyongjun3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-04 15:30:26 +01:00
Zheng Yongjun 8ad5749395 pinctrl: mediatek: paris: convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201211084717.2371-1-zhengyongjun3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-04 15:29:19 +01:00
Zheng Yongjun a15f859694 pinctrl: mediatek: simplify the return expression of mtk_pinconf_bias_disable_set_rev1()
Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201210135902.1548-1-zhengyongjun3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-12 01:39:38 +01:00
Zhiyong Tao 517c3f5a86 pinctrl: mtk: Fix low level output voltage issue
This patch is used to fix low level output voltage issue.
A pin is changed from input pull-up to output high.
The Dout value of the pin is default as 0.
If we change the direction of the pin before the dout value of the pin,
It maybe produce a low level output voltage between "input pull-up" and
"output high".

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Link: https://lore.kernel.org/r/20201120093058.7248-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-04 09:43:51 +01:00
Frank Wunderlich 5797264181 pinctrl: mt7622: drop pwm ch7 as mt7622 only has 6 channels
mt7622 is reported by mediatek to have only 6 pwm channels
so drop pindefines for 7th channel

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20201016204019.2606-4-linux@fw-web.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-11-10 14:58:14 +01:00
Linus Torvalds b4e1bce85f Pin control bulk changes for the v5.10 kernel cycle
Core changes:
 
 - NONE whatsoever, we don't even touch the core files this
   time around.
 
 New drivers:
 
 - New driver for the Toshiba Visconti SoC.
 
 - New subdriver for the Qualcomm MSM8226 SoC.
 
 - New subdriver for the Actions Semiconductor S500 SoC.
 
 - New subdriver for the Mediatek MT8192 SoC.
 
 - New subdriver for the Microchip SAMA7G5 SoC.
 
 Driver enhancements:
 
 - Intel Cherryview and Baytrail cleanups and refactorings.
 
 - Enhanced support for the Renesas R8A7790, more pins and
   groups.
 
 - Some optimizations for the MCP23S08 MCP23x17 variant.
 
 - Some cleanups around the Actions Semiconductor subdrivers.
 
 - A bunch of cleanups around the SH-PFC and Emma Mobile
   drivers.
 
 - The "SH-PFC" (literally SuperH pin function controller, I
   think) subdirectory is now renamed to the more neutral
   "renesas", as these are not very much centered around
   SuperH anymore.
 
 - Non-critical fixes for the Aspeed driver.
 
 - Non-critical fixes for the Ingenic (MIPS!) driver.
 
 - Fix a bunch of missing pins on the AMD pinctrl driver.
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Merge tag 'pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Core changes:

   - NONE whatsoever, we don't even touch the core files this time
     around.

  New drivers:

   - New driver for the Toshiba Visconti SoC.

   - New subdriver for the Qualcomm MSM8226 SoC.

   - New subdriver for the Actions Semiconductor S500 SoC.

   - New subdriver for the Mediatek MT8192 SoC.

   - New subdriver for the Microchip SAMA7G5 SoC.

  Driver enhancements:

   - Intel Cherryview and Baytrail cleanups and refactorings.

   - Enhanced support for the Renesas R8A7790, more pins and groups.

   - Some optimizations for the MCP23S08 MCP23x17 variant.

   - Some cleanups around the Actions Semiconductor subdrivers.

   - A bunch of cleanups around the SH-PFC and Emma Mobile drivers.

   - The "SH-PFC" (literally SuperH pin function controller, I think)
     subdirectory is now renamed to the more neutral "renesas", as these
     are not very much centered around SuperH anymore.

   - Non-critical fixes for the Aspeed driver.

   - Non-critical fixes for the Ingenic (MIPS!) driver.

   - Fix a bunch of missing pins on the AMD pinctrl driver"

* tag 'pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (78 commits)
  pinctrl: amd: Add missing pins to the pin group list
  dt-bindings: pinctrl: sunxi: Allow pinctrl with more interrupt banks
  pinctrl: visconti: PINCTRL_TMPV7700 should depend on ARCH_VISCONTI
  pinctrl: mediatek: Free eint data on failure
  pinctrl: single: fix debug output when #pinctrl-cells = 2
  pinctrl: single: fix pinctrl_spec.args_count bounds check
  pinctrl: sunrisepoint: Modify COMMUNITY macros to be consistent
  pinctrl: cannonlake: Modify COMMUNITY macros to be consistent
  pinctrl: tigerlake: Fix register offsets for TGL-H variant
  pinctrl: Document pinctrl-single,pins when #pinctrl-cells = 2
  pinctrl: mediatek: use devm_platform_ioremap_resource_byname()
  pinctrl: nuvoton: npcm7xx: Constify static ops structs
  pinctrl: mediatek: mt7622: add antsel pins/groups
  pinctrl: ocelot: simplify the return expression of ocelot_gpiochip_register()
  pinctrl: at91-pio4: add support for sama7g5 SoC
  dt-bindings: pinctrl: at91-pio4: add microchip,sama7g5
  pinctrl: spear: simplify the return expression of tvc_connect()
  pinctrl: spear: simplify the return expression of spear310_pinctrl_probe
  pinctrl: sprd: use module_platform_driver to simplify the code
  pinctrl: Ingenic: Add I2S pins support for Ingenic SoCs.
  ...
2020-10-14 15:25:04 -07:00
Enric Balletbo i Serra db7515783b pinctrl: mediatek: Free eint data on failure
The pinctrl driver can work without the EINT resource, but, if it is
expected to have this resource but the mtk_build_eint() function fails
after allocating their data (because can't get the resource or can't map
the irq), the data is not freed and you end with a NULL pointer
dereference. Fix this by freeing the data if mtk_build_eint() fails, so
pinctrl still works and doesn't hang.

This is noticeable after commit f97dbf48ca ("irqchip/mtk-sysirq: Convert
to a platform driver") on MT8183 because, due this commit, the pinctrl driver
fails to map the irq and spots the following bug:

[    1.947597] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004
[    1.956404] Mem abort info:
[    1.959203]   ESR = 0x96000004
[    1.962259]   EC = 0x25: DABT (current EL), IL = 32 bits
[    1.967565]   SET = 0, FnV = 0
[    1.970613]   EA = 0, S1PTW = 0
[    1.973747] Data abort info:
[    1.976619]   ISV = 0, ISS = 0x00000004
[    1.980447]   CM = 0, WnR = 0
[    1.983410] [0000000000000004] user address but active_mm is swapper
[    1.989759] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[    1.995322] Modules linked in:
[    1.998371] CPU: 7 PID: 1 Comm: swapper/0 Not tainted 5.9.0-rc1+ #44
[    2.004715] Hardware name: MediaTek krane sku176 board (DT)
[    2.010280] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--)
[    2.015850] pc : mtk_eint_set_debounce+0x48/0x1b8
[    2.020546] lr : mtk_eint_set_debounce+0x34/0x1b8
[    2.025239] sp : ffff80001008baa0
[    2.028544] x29: ffff80001008baa0 x28: ffff0000ff7ff790
[    2.033847] x27: ffff0000f9ec34b0 x26: ffff0000f9ec3480
[    2.039150] x25: ffff0000fa576410 x24: ffff0000fa502800
[    2.044453] x23: 0000000000001388 x22: ffff0000fa635f80
[    2.049755] x21: 0000000000000008 x20: 0000000000000000
[    2.055058] x19: 0000000000000071 x18: 0000000000000001
[    2.060360] x17: 0000000000000000 x16: 0000000000000000
[    2.065662] x15: ffff0000facc8470 x14: ffffffffffffffff
[    2.070965] x13: 0000000000000001 x12: 00000000000000c0
[    2.076267] x11: 0000000000000040 x10: 0000000000000070
[    2.081569] x9 : ffffaec0063d24d8 x8 : ffff0000fa800270
[    2.086872] x7 : 0000000000000000 x6 : 0000000000000011
[    2.092174] x5 : ffff0000fa800248 x4 : ffff0000fa800270
[    2.097476] x3 : ffff8000100c5000 x2 : 0000000000000000
[    2.102778] x1 : 0000000000000000 x0 : 0000000000000000
[    2.108081] Call trace:
[    2.110520]  mtk_eint_set_debounce+0x48/0x1b8
[    2.114870]  mtk_gpio_set_config+0x5c/0x78
[    2.118958]  gpiod_set_config+0x5c/0x78
[    2.122786]  gpiod_set_debounce+0x18/0x28
[    2.126789]  gpio_keys_probe+0x50c/0x910
[    2.130705]  platform_drv_probe+0x54/0xa8
[    2.134705]  really_probe+0xe4/0x3b0
[    2.138271]  driver_probe_device+0x58/0xb8
[    2.142358]  device_driver_attach+0x74/0x80
[    2.146532]  __driver_attach+0x58/0xe0
[    2.150274]  bus_for_each_dev+0x70/0xc0
[    2.154100]  driver_attach+0x24/0x30
[    2.157666]  bus_add_driver+0x14c/0x1f0
[    2.161493]  driver_register+0x64/0x120
[    2.165319]  __platform_driver_register+0x48/0x58
[    2.170017]  gpio_keys_init+0x1c/0x28
[    2.173672]  do_one_initcall+0x54/0x1b4
[    2.177499]  kernel_init_freeable+0x1d0/0x238
[    2.181848]  kernel_init+0x14/0x118
[    2.185328]  ret_from_fork+0x10/0x34
[    2.188899] Code: a9438ac1 12001266 f94006c3 121e766a (b9400421)
[    2.194991] ---[ end trace 168cf7b3324b6570 ]---
[    2.199611] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    2.207260] SMP: stopping secondary CPUs
[    2.211294] Kernel Offset: 0x2ebff4800000 from 0xffff800010000000
[    2.217377] PHYS_OFFSET: 0xffffb50500000000
[    2.221551] CPU features: 0x0240002,2188200c
[    2.225811] Memory Limit: none
[    2.228860] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]---

Fixes: 89132dd8ff ("pinctrl: mediatek: extend eint build to pinctrl-mtk-common-v2.c")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20201001142511.3560143-1-enric.balletbo@collabora.com
[rebased on changed infrastructure]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-10-07 10:31:30 +02:00
Hanks Chen 39c4dbe4cc pinctrl: mediatek: check mtk_is_virt_gpio input parameter
check mtk_is_virt_gpio input parameter,
virtual gpio need to support eint mode.

add error handler for the ko case
to fix this boot fail:
pc : mtk_is_virt_gpio+0x20/0x38 [pinctrl_mtk_common_v2]
lr : mtk_gpio_get_direction+0x44/0xb0 [pinctrl_paris]

Fixes: edd5464650 ("pinctrl: mediatek: avoid virtual gpio trying to set reg")
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Singed-off-by: Jie Yang <sin_jieyang@mediatek.com>
Link: https://lore.kernel.org/r/1597922546-29633-1-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-10-01 09:51:36 +02:00
Wang Xiaojun 48548c7865 pinctrl: mediatek: use devm_platform_ioremap_resource_byname()
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Wang Xiaojun <wangxiaojun11@huawei.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20200917064151.2184010-1-wangxiaojun11@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-30 10:49:53 +02:00
Chuanhong Guo 19f599e83a pinctrl: mediatek: mt7622: add antsel pins/groups
These pins are named ANTSEL[0~29] in datasheet and are used by wmac for
various functions.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/20200922164159.120920-1-gch981213@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 15:31:32 +02:00
Fabien Parent 82d70627e9 pinctrl: mediatek: Add MT8167 Pinctrl driver
This commit adds the pinctrl driver for the MediaTek's MT8167 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20200907110221.1691168-2-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-27 11:20:09 +02:00
Zhiyong Tao d32f38f2a8 pinctrl: mediatek: Add pinctrl driver for mt8192
This commit includes pinctrl driver for mt8192.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20200817001702.1646-4-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:50:57 +02:00
Randy Dunlap 047cd9a6bd pinctrl: mediatek: fix build for tristate changes
Export mtk_is_virt_gpio() for the case when
CONFIG_PINCTRL_MTK=y
CONFIG_PINCTRL_MTK_V2=y
CONFIG_PINCTRL_MTK_MOORE=y
CONFIG_PINCTRL_MTK_PARIS=m

to fix this build error:

ERROR: modpost: "mtk_is_virt_gpio" [drivers/pinctrl/mediatek/pinctrl-paris.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sean Wang <sean.wang@kernel.org>
Cc: linux-mediatek@lists.infradead.org
Link: https://lore.kernel.org/r/d15827a3-d0c8-e231-9f61-8507b3d7be3a@infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:29:10 +02:00
Hanks Chen c1282ae878 pinctrl: mediatek: add mt6779 eint support
add driver setting to support mt6779 eint

Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/1595503197-15246-6-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:29:10 +02:00
Hanks Chen 920e469e15 pinctrl: mediatek: add pinctrl support for MT6779 SoC
This adds MT6779 pinctrl driver based on MediaTek pinctrl-paris core.

Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Andy Teng <andy.teng@mediatek.com>
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/1595503197-15246-5-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:29:09 +02:00
Hanks Chen edd5464650 pinctrl: mediatek: avoid virtual gpio trying to set reg
for virtual gpios, they should not do reg setting and
should behave as expected for eint function.

Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/1595503197-15246-4-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:29:09 +02:00
Lee Jones ea0b879b5d pinctrl: mediatek: pinctrl-mtk-common-v2: Mark 'mtk_default_register_base_names' as __maybe_unused
Not all sourcefiles which end up including pinctrl-mtk-common-v2.h make use
of 'mtk_default_register_base_names' and there is nowhere we can place the
definition to void the need for __maybe_unused except its own headerfile,
which seems like overkill.  So instead we tell the compiler that it's okay
for it to be unused by some of the consumers.

Fixes the following W=1 kernel build warning(s):

 In file included from drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:19:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-moore.h:25,
 from drivers/pinctrl/mediatek/pinctrl-moore.c:12:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-paris.c:15:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt6797.h:15,
 from drivers/pinctrl/mediatek/pinctrl-mt6797.c:13:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt8183.h:12,
 from drivers/pinctrl/mediatek/pinctrl-mt8183.c:9:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt6765.h:12,
 from drivers/pinctrl/mediatek/pinctrl-mt6765.c:10:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Cc: Sean Wang <sean.wang@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org
Link: https://lore.kernel.org/r/20200713144930.1034632-11-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Linus Torvalds cf0c97f148 This is the bulk of pin control changes for the v5.8
kernel cycle.
 
 New drivers:
 
 - Intel Jasper Lake support.
 
 - NXP Freescale i.MX8DXL support.
 
 - Qualcomm SM8250 support.
 
 - Renesas R8A7742 SH-PFC support.
 
 Driver improvements:
 
 - Severe cleanup and modernization of the MCP23s08 driver.
 
 - Mediatek driver modularized.
 
 - Setting config supported in the Meson driver.
 
 - Wakeup support for the Broadcom BCM7211.
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Merge tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.8 kernel cycle.

  It's just really boring this time. Zero core changes. Just linear
  development, cleanups and misc noncritical fixes. Some new drivers for
  very new Qualcomm and Intel chips.

  New drivers:

   - Intel Jasper Lake support.

   - NXP Freescale i.MX8DXL support.

   - Qualcomm SM8250 support.

   - Renesas R8A7742 SH-PFC support.

  Driver improvements:

   - Severe cleanup and modernization of the MCP23s08 driver.

   - Mediatek driver modularized.

   - Setting config supported in the Meson driver.

   - Wakeup support for the Broadcom BCM7211"

* tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
  pinctrl: sprd: Fix the incorrect pull-up definition
  pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken
  pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'
  pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'
  pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()
  pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'
  pinctrl: bcm2835: Add support for wake-up interrupts
  pinctrl: bcm2835: Match BCM7211 compatible string
  dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts
  dt-bindings: pinctrl: Document 7211 compatible for brcm, bcm2835-gpio.txt
  dt-bindings: pinctrl: stm32: Add missing interrupts property
  pinctrl: at91-pio4: Add COMPILE_TEST support
  pinctrl: Fix return value about devm_platform_ioremap_resource()
  MAINTAINERS: Renesas Pin Controllers are supported
  dt-bindings: pinctrl: ocelot: Add Sparx5 SoC support
  pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2
  pinctrl: ocelot: Remove instance number from pin functions
  pinctrl: ocelot: Always register GPIO driver
  dt-bindings: pinctrl: rockchip: update example
  pinctrl: amd: Add ACPI dependency
  ...
2020-06-07 16:13:43 -07:00
Arnd Bergmann c7acd6fe8a pinctrl: mediatek: add pinctrl-mtk-common-v2 module license
Kbuild warns when this file is built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o
see include/linux/module.h for more information

Add the missing license/author/description tags.

Fixes: 8174a8512e ("pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200505140848.554957-1-arnd@arndb.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 15:10:36 +02:00
Light Hsieh d1f7af4b4a pinctrl: mediatek: remove shadow variable declaration
Remove shadow declaration of variable 'pullup' in mtk_pinconf_get()

Signed-off-by: Light Hsieh <light.hsieh@mediatek.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Link: https://lore.kernel.org/r/1586255632-27528-1-git-send-email-light.hsieh@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 10:01:30 +02:00
Light Hsieh 9c95f7c283 pinctrl: mediatek: make MediaTek MT6765 pinctrl ready for buiding loadable module
This patch make pinctrl-mt6765 ready for building as loadable module.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Light Hsieh <light.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/42100afe6f97d28447c153bea6b54ea556cf95ca.1586289920.git.sean.wang@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 09:59:11 +02:00
Light Hsieh 8174a8512e pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module
In the future we want to be able to build the MediaTek pinctrl driver,
based on paris, as kernel module. This patch allows pinctrl-paris.c, the
external interrupt controller mtk-eint.c, and pinctrl-mtk-common-v2.c to
be loadable as module.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Light Hsieh <light.hsieh@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/9feeb04805e5a406fe22a92e3f280abda39ddda4.1586289920.git.sean.wang@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 09:59:11 +02:00
Takashi Iwai 7eb42f9855 pinctrl: mediatek: Use scnprintf() for avoiding potential buffer overflow
Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit.  Fix it by replacing with scnprintf().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200311090644.20287-1-tiwai@suse.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-03-27 11:30:24 +01:00
Dan Carpenter 3385ab72d9 pinctrl: mediatek: Fix some off by one bugs
These comparisons should be >= instead of > to prevent accessing one
element beyond the end of the hw->soc->pins[] array.

Fixes: 3de7deefce ("pinctrl: mediatek: Check gpio pin number and use binary search in mtk_hw_pin_field_lookup()")
Fixes: 184d8e13f9 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200218055247.74s2xa7veqx2do34@kili.mountain
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-21 17:11:40 +01:00
Matti Vaittinen 3c82787359 pinctrl: Use new GPIO_LINE_DIRECTION
Use newly added GPIO defines GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT instead of using hard-coded 1 and 0.

Main benefit is to make it easier to see which values mean IN and which
OUT. As a side effect this helps GPIO framework to change the direction
defines to something else if ever needed.

Please note that return value from get_direction call on
pinctrl-axp209 driver was changed. Previously pinctrl-axp209 might have
returned value 2 for direction INPUT.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reported-by: kbuild test robot <lkp@intel.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20200214135712.GA14557@localhost.localdomain
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-21 15:19:42 +01:00
YueHaibing 86ecb7d685 pinctrl: mediatek: remove set but not used variable 'e'
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c: In function mtk_hw_pin_field_lookup:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:70:39: warning:
 variable e set but not used [-Wunused-but-set-variable]

Since commit 3de7deefce ("pinctrl: mediatek: Check gpio pin
number and use binary search in mtk_hw_pin_field_lookup()"),
it is not used any more, so remove it, also remove redundant
assignment to variable c, it will be assigned a new value later
before used.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20200218023625.14324-1-yuehaibing@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-20 16:13:31 +01:00