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2023-02-22Merge tag 'pinctrl-v6.3-1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Nothing special, notably a lot of new Qualcomm hardware is supported, a RISC-V reference SoC and then some cleanups both in code and device tree bindings. Core changes: - Add PINCTRL_PINFUNCTION() macro and use it in several drivers New drivers: - New driver for the StarFive JH7110 SoC "sys" and "aon" (always-on) pin controllers. (RISC-V.) - New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin controller - New subdrivers for the Qualcomm SM8550 SoC and LPASS pin controllers - New subdriver for the Qualcomm SA8775P SoC pin controller - New subdriver for the Qualcomm IPQ5332 SoC pin controller - New (trivial) support for Qualcomm PM8550 and PMR735D PMIC pin control - New subdriver for the Mediatek MT7981 SoC pin controller Improvements: - Several cleanups and refactorings to the Intel drivers - Add 4KOhm bias support to the Intel driver - Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver - Support general purpose clocks in the Qualcomm MSM8226 SoC - Several conversions to use the new I2C .probe_new() call - Massive clean-up of the Qualcomm Device Tree YAML schemas - Add VIN[45] pins, groups and functions to the Renesas r8a77950 SoC driver" * tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (118 commits) pinctrl: qcom: Add support for i2c specific pull feature pinctrl: starfive: Add StarFive JH7110 aon controller driver pinctrl: starfive: Add StarFive JH7110 sys controller driver dt-bindings: pinctrl: Add StarFive JH7110 aon pinctrl dt-bindings: pinctrl: Add StarFive JH7110 sys pinctrl pinctrl: add mt7981 pinctrl driver dt-bindings: pinctrl: add bindings for MT7981 SoC dt-bindings: pinctrl: rockchip,pinctrl: mark gpio sub nodes of pinctrl as deprecated pinctrl: qcom: Introduce IPQ5332 TLMM driver dt-bindings: pinctrl: qcom: add IPQ5332 pinctrl dt-bindings: pinctrl: qcom: lpass-lpi: correct GPIO name pattern pinctrl: qcom: pinctrl-sm8550-lpass-lpi: add SM8550 LPASS dt-bindings: pinctrl: qcom,sm8550-lpass-lpi-pinctrl: add SM8550 LPASS pinctrl: at91: use devm_kasprintf() to avoid potential leaks dt-bindings: pinctrl: qcom: correct gpio-ranges in examples dt-bindings: pinctrl: qcom,msm8994: correct number of GPIOs dt-bindings: pinctrl: qcom,sdx55: correct GPIO name pattern dt-bindings: pinctrl: qcom,msm8953: correct GPIO name pattern dt-bindings: pinctrl: qcom,sm6375: correct GPIO name pattern and example dt-bindings: pinctrl: qcom,msm8909: correct GPIO name pattern and example ...
2023-01-16pinctrl: samsung: Do not mention legacy API in the codeAndy Shevchenko1-1/+1
Replace mentioning of legacy API by the latest one. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230112134849.59534-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-01-16pinctrl: remove s3c24xx driverArnd Bergmann3-659/+0
The s3c24xx platform was removed, so this driver has no remaining users. Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-16ARM: s3c: remove s3c24xx specific hacksArnd Bergmann1-10/+0
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-10-24pinctrl: samsung: Add missing header(s)Andy Shevchenko1-5/+6
Do not imply that some of the generic headers may be always included. Instead, include explicitly what we are direct user of. While at it, sort headers alphabetically. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2022-08-16pinctrl: samsung: Finish initializing the gpios before registering themSaravana Kannan1-4/+4
As soon as a gpio is registered, it should be usable by a consumer. So, do all the initialization before registering the gpios. Without this change, a consumer can request a GPIO IRQ and have the gpio to IRQ mapping fail. Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Chanho Park <chanho61.park@samsung.com> Tested-by: Chanho Park <chanho61.park@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220727013349.3056826-1-saravanak@google.com
2022-06-28pinctrl: samsung: do not use bindings header with constantsKrzysztof Kozlowski4-7/+14
The Samsung SoC pin controller driver uses only three defines from the bindings header with pin configuration register values, which proves the point that this header is not a proper bindings-type abstraction layer with IDs. Define the needed register values directly in the driver and stop using the bindings header. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Chanho Park <chanho61.park@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220605160508.134075-8-krzysztof.kozlowski@linaro.org Link: https://lore.kernel.org/r/20220624081022.32384-1-krzysztof.kozlowski@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-27Merge tag 'gpio-updates-for-v5.19' of ↵Linus Torvalds5-24/+22
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "We have lots of small changes all over the place, but no huge reworks or new drivers: - use ioread()/iowrite() interfaces instead of raw inb()/outb() in drivers - make irqchips immutable due to the new warning popping up when drivers try to modify the irqchip structures - add new compatibles to dt-bindings for realtek-otto, renesas-rcar and pca95xx - add support for new models to gpio-rcar, gpio-pca953x & gpio-realtek-otto - allow parsing of GPIO hogs represented as children nodes of gpio-uniphier - define a set of common GPIO consumer strings in dt-bindings - shrink code in gpio-ml-ioh by using more devres interfaces - pass arguments to devm_kcalloc() in correct order in gpio-sim - add new helpers for iterating over GPIO firmware nodes and descriptors to gpiolib core and use it in several drivers - drop unused syscon_regmap_lookup_by_compatible() function - correct format specifiers and signedness of variables in GPIO ACPI - drop unneeded error checks in gpio-ftgpio - stop using the deprecated of_gpio.h header in gpio-zevio - drop platform_data support in gpio-max732x - simplify Kconfig dependencies in gpio-vf610 - use raw spinlocks where needed to make PREEMPT_RT happy - fix return values in board files using gpio-pcf857x - convert more drivers to using fwnode instead of of_node - minor fixes and improvements in gpiolib core" * tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (55 commits) gpio: sifive: Make the irqchip immutable gpio: rcar: Make the irqchip immutable gpio: pcf857x: Make the irqchip immutable gpio: pca953x: Make the irqchip immutable gpio: dwapb: Make the irqchip immutable gpio: sim: Use correct order for the parameters of devm_kcalloc() gpio: ml-ioh: Convert to use managed functions pcim* and devm_* gpio: ftgpio: Remove unneeded ERROR check before clk_disable_unprepare gpio: ws16c48: Utilize iomap interface gpio: gpio-mm: Utilize iomap interface gpio: 104-idio-16: Utilize iomap interface gpio: 104-idi-48: Utilize iomap interface gpio: 104-dio-48e: Utilize iomap interface gpio: zevio: drop of_gpio.h header gpio: max77620: Make the irqchip immutable dt-bindings: gpio: pca95xx: add entry for pca6408 gpio: pca953xx: Add support for pca6408 gpio: max732x: Drop unused support for irq and setup code via platform data gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610 gpio: syscon: Remove usage of syscon_regmap_lookup_by_compatible ...
2022-04-21pinctrl: samsung: fix missing GPIOLIB on ARM64 Exynos configKrzysztof Kozlowski1-7/+4
The Samsung pinctrl drivers depend on OF_GPIO, which is part of GPIOLIB. ARMv7 Exynos platform selects GPIOLIB and Samsung pinctrl drivers. ARMv8 Exynos selects only the latter leading to possible wrong configuration on ARMv8 build: WARNING: unmet direct dependencies detected for PINCTRL_EXYNOS Depends on [n]: PINCTRL [=y] && OF_GPIO [=n] && (ARCH_EXYNOS [=y] || ARCH_S5PV210 || COMPILE_TEST [=y]) Selected by [y]: - ARCH_EXYNOS [=y] Always select the GPIOLIB from the Samsung pinctrl drivers to fix the issue. This requires removing of OF_GPIO dependency (to avoid recursive dependency), so add dependency on OF for COMPILE_TEST cases. Reported-by: Necip Fazil Yildiran <fazilyildiran@gmail.com> Fixes: eed6b3eb20b9 ("arm64: Split out platform options to separate Kconfig") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20220420141407.470955-1-krzysztof.kozlowski@linaro.org
2022-04-14pinctrl: samsung: Switch to use for_each_gpiochip_node() helperAndy Shevchenko5-18/+18
Switch the code to use for_each_gpiochip_node() helper. While at it, in order to avoid additional churn in the future, switch to fwnode APIs where it makes sense. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2022-04-14pinctrl: samsung: Drop redundant node parameter in samsung_banks_of_node_get()Andy Shevchenko1-7/+5
The node is taken from the device pointer, which is supplied as a parameter, hence no need to have a separate parameter for node. Drop redundant node parameter in samsung_banks_of_node_get(). While at it, drop "of_" part in the samsung_banks_of_node_get() and samsung_banks_of_node_put() function names to avoid additional churn in the next changes. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2022-04-04pinctrl: samsung: staticize fsd_pin_ctrlKrzysztof Kozlowski1-1/+1
struct fsd_pin_ctrl is not used outside of the file, so it can be made static. This fixes sparse warning: drivers/pinctrl/samsung/pinctrl-exynos-arm64.c:773:31: sparse: symbol 'fsd_pin_ctrl' was not declared. Should it be static? Reported-by: kernel test robot <lkp@intel.com> Fixes: 0d1b662c374c ("pinctrl: samsung: add FSD SoC specific data") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Link: https://lore.kernel.org/r/20220331194526.52444-1-krzysztof.kozlowski@linaro.org
2022-02-01pinctrl: samsung: improve wake irq info on consoleMartin Jücker1-1/+2
Improve the wake irq message by also printing the bank name and hwirq number that matches this irq number. Signed-off-by: Martin Jücker <martin.juecker@gmail.com> Link: https://lore.kernel.org/r/20220130232122.GA119248@adroid Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2022-01-25pinctrl: samsung: add FSD SoC specific dataAlim Akhtar3-0/+74
Adds Tesla FSD SoC specific data to enable pinctrl. FSD SoC has similar pinctrl controller as found in the most Samsung/Exynos SoCs. Cc: linux-fsd@tesla.com Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Link: https://lore.kernel.org/r/20220124141644.71052-13-alim.akhtar@samsung.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2022-01-23pinctrl: samsung: add support for Exynos850 and ExynosAutov9 wake-upsKrzysztof Kozlowski1-0/+4
It seems that newer ARMv8 Exynos SoC like Exynos850 and ExynosAutov9 have differences of their pin controller node capable of external wake-up interrupts: 1. No multiplexed external wake-up interrupt, only direct, 2. More than one pin controller capable of external wake-up interrupts. Add support for dedicated Exynos850 and ExynosAutov9 compatibles. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Chanho Park <chanho61.park@samsung.com> Tested-by: Chanho Park <chanho61.park@samsung.com> Link: https://lore.kernel.org/r/20220111201722.327219-20-krzysztof.kozlowski@canonical.com
2022-01-23pinctrl: samsung: accept GPIO bank nodes with a suffixKrzysztof Kozlowski1-12/+45
Existing dt-bindings expected that each GPIO/pin bank within pin controller has its own node with name matching the bank (e.g. gpa0, gpx2) and "gpio-controller" property. The node name is then used for matching between driver data and DTS. Newly introduced dtschema expects to have nodes ending with "-gpio-bank" suffix, so rewrite bank-devicetree matching to look for old and new style of naming. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Link: https://lore.kernel.org/r/20220111201426.326777-3-krzysztof.kozlowski@canonical.com
2022-01-23pinctrl: samsung: Remove EINT handler for Exynos850 ALIVE and CMGP gpiosSam Protsenko1-2/+0
GPIO_ALIVE and GPIO_CMGP blocks in Exynos850 SoC don't have EINT capabilities (like EINT_SVC register), and there are no corresponding interrupts wired to GIC. Instead those blocks have wake-up interrupts for each pin. The ".eint_gpio_init" callbacks were specified by mistake for these blocks, when porting pinctrl code from downstream kernel. That leads to error messages like this: samsung-pinctrl 11850000.pinctrl: irq number not available Remove ".eint_gpio_init" for pinctrl_alive and pinctrl_gpmc to fix this error. This change doesn't affect proper interrupt handling for related pins, as all those pins are handled in ".eint_wkup_init". Fixes: cdd3d945dcec ("pinctrl: samsung: Add Exynos850 SoC specific data") Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Link: https://lore.kernel.org/r/20220114203757.4860-1-semen.protsenko@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2022-01-23pinctrl: samsung: drop pin banks references on error pathsKrzysztof Kozlowski1-7/+23
The driver iterates over its devicetree children with for_each_child_of_node() and stores for later found node pointer. This has to be put in error paths to avoid leak during re-probing. Fixes: ab663789d697 ("pinctrl: samsung: Match pin banks with their device nodes") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Chanho Park <chanho61.park@samsung.com> Link: https://lore.kernel.org/r/20220111201426.326777-2-krzysztof.kozlowski@canonical.com
2021-12-25pinctrl: samsung: Use platform_get_irq_optional() to get the interruptLad Prabhakar1-4/+5
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypasses the hierarchical setup and messes up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq_optional(). Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20211224145748.18754-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-11-23pinctrl: samsung: Make symbol 'exynos7885_pin_ctrl' staticWei Yongjun1-1/+1
The sparse tool complains as follows: drivers/pinctrl/samsung/pinctrl-exynos-arm64.c:490:31: warning: symbol 'exynos7885_pin_ctrl' was not declared. Should it be static? This symbol is not used outside of pinctrl-exynos-arm64.c, so marks it static. Fixes: b0ef7b1a7a07 ("pinctrl: samsung: Add Exynos7885 SoC specific data") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20211123083617.2366756-1-weiyongjun1@huawei.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-11-16pinctrl: samsung: Add Exynos7885 SoC specific dataDavid Virag3-0/+84
Add Samsung Exynos7885 SoC specific data to enable pinctrl support for all platforms based on Exynos7885. Signed-off-by: David Virag <virag.david003@gmail.com> Link: https://lore.kernel.org/r/20211031231720.46994-1-virag.david003@gmail.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-10-18pinctrl: samsung: support ExynosAutov9 SoC pinctrlChanho Park3-0/+111
Add pinctrl data for ExynosAuto v9 SoC. - GPA0, GPA1: 10, External wake up interrupt - GPQ0: 2, XbootLDO, Speedy PMIC I/F - GPB0, GPB1, GPB2, GPB3: 29, I2S 7 CH - GPF0, GPF1, GPF2, GPF3,GPF4, GPF5, GPF6, GPF8: 52, FSYS - GPG0, GPG1, GPG2, GPG3: 25, GPIO x 24, SMPL_INT - GPP0, GPP1, GPP2, GPP3, GPP4, GPP5: 48, USI 12 CH Signed-off-by: Chanho Park <chanho61.park@samsung.com> Link: https://lore.kernel.org/r/20211008091443.44625-2-chanho61.park@samsung.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211017171912.5044-1-krzysztof.kozlowski@canonical.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-09-03Merge tag 'pinctrl-v5.15-1' of ↵Linus Torvalds4-1/+149
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. ...
2021-08-13pinctrl: samsung: Add Exynos850 SoC specific dataSam Protsenko4-0/+148
Add Samsung Exynos850 SoC specific data to enable pinctrl support for all platforms based on Exynos850. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Link: https://lore.kernel.org/r/20210811114827.27322-3-semen.protsenko@linaro.org [krzysztof: lower-case the hex-numbers] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-08-12pinctrl: Bulk conversion to generic_handle_domain_irq()Marc Zyngier3-33/+24
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>
2021-08-02pinctrl: samsung: Fix pinctrl bank pin countJaehyoung Choi1-1/+1
Commit 1abd18d1a51a ("pinctrl: samsung: Register pinctrl before GPIO") changes the order of GPIO and pinctrl registration: now pinctrl is registered before GPIO. That means gpio_chip->ngpio is not set when samsung_pinctrl_register() called, and one cannot rely on that value anymore. Use `pin_bank->nr_pins' instead of `pin_bank->gpio_chip.ngpio' to fix mentioned inconsistency. Fixes: 1abd18d1a51a ("pinctrl: samsung: Register pinctrl before GPIO") Signed-off-by: Jaehyoung Choi <jkkkkk.choi@samsung.com> Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Link: https://lore.kernel.org/r/20210730192905.7173-1-semen.protsenko@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-04-10pinctrl: samsung: use 'int' for register masks in ExynosKrzysztof Kozlowski1-5/+5
The Special Function Registers on all Exynos SoC, including ARM64, are 32-bit wide, so entire driver uses matching functions like readl() or writel(). On 64-bit ARM using unsigned long for register masks: 1. makes little sense as immediately after bitwise operation it will be cast to 32-bit value when calling writel(), 2. is actually error-prone because it might promote other operands to 64-bit. Addresses-Coverity: Unintentional integer overflow Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Link: https://lore.kernel.org/r/20210408195029.69974-1-krzysztof.kozlowski@canonical.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-27pinctrl: samsung: use raw_spinlock for s3c64xxChanho Park1-2/+2
Convert spin_[lock|unlock] functions of pin bank to raw_spinlock to support preempt-rt for pinctrl-s3c64xx. Below patch converted spinlock_t to raw_spinlock_t but it didn't convert the s3c64xx's spinlock. Fixes: 1f306ecbe0f6 ("pinctrl: samsung: use raw_spinlock for locking") Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chanho Park <chanho61.park@samsung.com> Link: https://lore.kernel.org/r/20210127001631.91209-1-chanho61.park@samsung.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-24pinctrl: samsung: use raw_spinlock for lockingChanho Park4-22/+22
This patch converts spin_[lock|unlock] functions of pin bank to raw_spinlock to support preempt-rt. This can avoid BUG() assertion when irqchip callbacks are triggerred. Spinlocks can be converted rt_mutex which is preemptible when we apply preempt-rt patches. According to "Documentation/driver-api/gpio/driver.rst", "Realtime considerations: a realtime compliant GPIO driver should not use spinlock_t or any sleepable APIs (like PM runtime) as part of its irqchip implementation. - spinlock_t should be replaced with raw_spinlock_t.[1] " Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20210121030009.25673-1-chanho61.park@samsung.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-10-26pinctrl: samsung: s3c24xx: remove unneeded breakTom Rix1-5/+0
A break is not needed if it is preceded by a return. Signed-off-by: Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/r/20201020131520.29117-1-trix@redhat.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-04pinctrl: samsung: Use bank name as irqchip nameMarek Szyprowski1-26/+32
Use the bank name as the irqchip name. This name is later visible in /proc/interrupts, what makes it possible to easily identify each GPIO interrupt. /proc/interrupts before this patch: 143: 0 exynos4210_wkup_irq_chip 7 Edge hdmi 144: 0 exynos4210_wkup_irq_chip 6 Level wm8994 145: 1 exynos4210_wkup_irq_chip 7 Edge max77686-pmic, max77686-rtc 146: 1 exynos_gpio_irq_chip 3 Edge 3-0048 /proc/interrupts after this patch: 143: 0 gpx3 7 Edge hdmi 144: 0 gpx3 6 Level wm8994 145: 1 gpx0 7 Edge max77686-pmic, max77686-rtc 146: 1 gpm2 3 Edge 3-0048 Handling of the eint_wake_mask_value has been reworked, because each bank has now its own exynos_irq_chip structure allocated. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200720145412.24221-1-krzk@kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16pinctrl: samsung: pinctrl-s3c64xx: Fix formatting issuesLee Jones1-3/+3
Kerneldoc struct titles must be followed by whitespace else the checker gets confused. Fixes the following W=1 kernel build warning(s): drivers/pinctrl/samsung/pinctrl-s3c64xx.c:212: warning: cannot understand function prototype: 'struct s3c64xx_eint0_domain_data ' Signed-off-by: Lee Jones <lee.jones@linaro.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Link: https://lore.kernel.org/r/20200713144930.1034632-9-lee.jones@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16pinctrl: samsung: pinctrl-s3c24xx: Fix formatting issuesLee Jones1-3/+3
Kerneldoc struct titles must be followed by whitespace. Also attributes need to be in the format '@.*: ' else the checker gets confused. Fixes the following W=1 kernel build warning(s): drivers/pinctrl/samsung/pinctrl-s3c24xx.c:100: warning: cannot understand function prototype: 'struct s3c24xx_eint_domain_data ' Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-samsung-soc@vger.kernel.org Link: https://lore.kernel.org/r/20200713144930.1034632-8-lee.jones@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16pinctrl: samsung: pinctrl-samsung: Demote obvious misuse of kerneldoc to ↵Lee Jones1-2/+2
standard comment blocks No attempt has been made to document either of the demoted functions here. Fixes the following W=1 kernel build warning(s): drivers/pinctrl/samsung/pinctrl-samsung.c:1149: warning: Function parameter or member 'dev' not described in 'samsung_pinctrl_suspend' drivers/pinctrl/samsung/pinctrl-samsung.c:1199: warning: Function parameter or member 'dev' not described in 'samsung_pinctrl_resume' Signed-off-by: Lee Jones <lee.jones@linaro.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Link: https://lore.kernel.org/r/20200713144930.1034632-7-lee.jones@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOsJonathan Bakker1-0/+9
Currently, for EINT_TYPE GPIOs, the CON and FLTCON registers are saved and restored over a suspend/resume cycle. However, the EINT_MASK registers are not. On S5PV210 at the very least, these registers are not retained over suspend, leading to the interrupts remaining masked upon resume and therefore no interrupts being triggered for the device. There should be no effect on any SoCs that do retain these registers as theoretically we would just be re-writing what was already there. Fixes: 7ccbc60cd9c2 ("pinctrl: exynos: Handle suspend/resume of GPIO EINT registers") Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-04-13pinctrl: samsung: Correct setting of eint wakeup mask on s5pv210Jonathan Bakker1-24/+49
Commit a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt mask") started writing the eint wakeup mask from the pinctrl driver. Unfortunately, it made the assumption that the private retention data was always a regmap while in the case of s5pv210 it is a raw pointer to the clock base (as the eint wakeup mask not in the PMU as with newer Exynos platforms). Fixes: a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt mask") Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-12-15pinctrl: samsung: Fix missing OF and GPIOLIB dependency on S3C24xx and S3C64xxKrzysztof Kozlowski1-2/+4
All Samsung pinctrl drivers select common part - PINCTRL_SAMSUNG which uses both OF and GPIOLIB inside. However only Exynos drivers depend on these, therefore after enabling COMPILE_TEST, on x86_64 build of S3C64xx driver failed: drivers/pinctrl/samsung/pinctrl-samsung.c: In function ‘samsung_gpiolib_register’: drivers/pinctrl/samsung/pinctrl-samsung.c:969:5: error: ‘struct gpio_chip’ has no member named ‘of_node’ gc->of_node = bank->of_node; ^ Rework the dependencies so all Samsung drivers and common PINCTRL_SAMSUNG part depend on OF_GPIO (which is default yes if GPIOLIB and OF are enabled). Reported-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-12-11pinctrl: samsung: Clarify the option titles/namesKrzysztof Kozlowski1-3/+3
The config options toggle Samsung Exynos SoCs pinctrl drivers, not the driver data. Clarify this in the option title/name and also make it consistent with other Samsung entries. No functional change. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-12-11pinctrl: samsung: Enable compile test for build coverageKrzysztof Kozlowski1-3/+5
The Samsung pinctrl drivers require only GPIOLIB and OF for building. The drivers should be buildable on all architectures so enable COMPILE_TEST. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-01pinctrl: samsung: Fix device node refcount leaks in init codeKrzysztof Kozlowski1-2/+8
Several functions use for_each_child_of_node() loop with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: 9a2c1c3b91aa ("pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-01pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup ↵Krzysztof Kozlowski1-1/+5
controller init In s3c64xx_eint_eint0_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: 61dd72613177 ("pinctrl: Add pinctrl-s3c64xx driver") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-01pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup ↵Krzysztof Kozlowski1-1/+5
controller init In s3c24xx_eint_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: af99a7507469 ("pinctrl: Add pinctrl-s3c24xx driver") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-01pinctrl: samsung: Fix device node refcount leaks in Exynos wakeup controller ↵Krzysztof Kozlowski1-2/+8
init In exynos_eint_wkup_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: 43b169db1841 ("pinctrl: add exynos4210 specific extensions for samsung pinctrl driver") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-01pinctrl: samsung: Add of_node_put() before return in error pathNishka Dasgupta1-1/+3
Each iteration of for_each_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return of exynos_eint_wkup_init() error path. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Cc: <stable@vger.kernel.org> Fixes: 14c255d35b25 ("pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-23pinctrl: samsung: fix leaked of_node referencesWen Yang1-0/+1
The call to of_find_compatible_node returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./drivers/pinctrl/samsung/pinctrl-exynos-arm.c:76:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 66, but without a corresponding object release within this function. ./drivers/pinctrl/samsung/pinctrl-exynos-arm.c:82:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 66, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: linux-samsung-soc@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-08pinctrl: samsung: Remove legacy API for handling external wakeup interrupts maskKrzysztof Kozlowski1-10/+2
Remove the legacy, ugly API of exposing the static value of external wakeup interrupts mask, because all arch-machine users where converted to use generic implementation from pinctrl driver. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <snawrocki@kernel.org> Acked-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-14pinctrl: Use of_node_name_eq for node name comparisonsRob Herring1-1/+1
Convert string compares of DT node names to use of_node_name_eq helper instead. This removes direct access to the node name pointer. Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-gpio@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-14pinctrl: Include <linux/gpio/driver.h> nothing elseLinus Walleij2-2/+2
These drivers are GPIO drivers, and the do not need to use the legacy header in <linux/gpio.h>, go directly for <linux/gpio/driver.h> instead. Replace any use of GPIOF_* with 0/1, these flags are for consumers, not drivers. Get rid of a few gpio_to_irq() users that was littering around the place, use local callbacks or avoid using it at all. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-11pinctrl: samsung: Remove duplicated "wakeup" in printkKrzysztof Kozlowski1-1/+1
Double "wakeup" appears in printed message. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-07-24pinctrl: samsung: Write external wakeup interrupt maskKrzysztof Kozlowski2-1/+52
The pinctrl driver defines an IRQ chip which handles external wakeup interrupts, therefore from logical point of view, it is the owner of external interrupt mask. The register controlling the mask belongs to Power Management Unit address space so it has to be accessed with PMU syscon regmap handle. This mask should be written to hardware during system suspend. Till now ARMv7 machine code was responsible for this which created a dependency between pin controller driver and arch/arm/mach code. Try to rework this dependency so the pinctrl driver will write external wakeup interrupt mask during late suspend. Impact on ARMv7 designs (S5Pv210 and Exynos) ============================================ This duplicates setting mask with existing machine code arch/arm/mach-exynos/suspend.c and arch/arm/mach-s5pv210/pm.c but it is not a problem - the wakeup mask register will be written twice. The machine code will be cleaned up later. The difference between implementation here and ARMv7 machine code (arch/arm/mach-*) is the time of writing the mask: 1. The machine code is writing the mask quite late during system suspend path, after offlining secondary CPUs and just before doing actual suspend. 2. The implementation in pinctrl driver uses late suspend ops, therefore it will write the mask much earlier. Hopefully late enough, after all drivers will enable or disable their interrupt wakeups (enable_irq_wake() etc). Impact on ARMv8 designs (Exynos5433 and Exynos7) ================================================ The Suspend to RAM was not supported and external wakeup interrupt mask was not written to HW. This change brings us one step closer to supporting Suspend to RAM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <snawrocki@kernel.org> Acked-by: Tomasz Figa <tomasz.figa@gmail.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
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