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path: root/drivers/pinctrl/nomadik
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2024-03-06pinctrl: nomadik: fix dereference of error pointerThéo Lebrun1-2/+3
If nmk_gpio_populate_chip() returns an error, avoid deferencing its return value. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/linux-gpio/5ee722f8-7582-420d-8477-45be6acde90f@moroto.mountain/ Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240306-mbly-gpio-err-fix-v1-1-a3605ba2336f@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-03-03gpio: nomadik: Finish conversion to use firmware node APIsAndy Shevchenko1-13/+12
Previously driver got a few updates in order to replace OF APIs by respective firmware node, however it was not finished to the logical end, e.g., some APIs that has been used are still require OF node to be passed. Finish that job by converting leftovers to use firmware node APIs. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240302173401.217830-1-andy.shevchenko@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-03-01gpio: nomadik: fix Kconfig dependencies inbetween pinctrl & GPIOThéo Lebrun1-0/+1
PINCTRL_NOMADIK cannot select GPIO_NOMADIK without first selecting GPIOLIB on which GPIO_NOMADIK depends. GPIO_NOMADIK depends on OF_GPIO, it is a direct dependency. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202403010917.pnDhdS1Y-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202403011102.v8w2zPOU-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202403011329.1VnABMRz-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202403011546.Hpt8sBTa-lkp@intel.com/ Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240301-mbly-gpio-kconfig-fix-v1-1-2785cebd475d@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29gpio: nomadik: support mobileye,eyeq5-gpioThéo Lebrun1-0/+2
We create a custom compatible for the STA2X11 IP block as integrated into the Mobileye EyeQ5 platform. Its wake and alternate functions have been disabled, we want to avoid touching those registers. We both do: (1) early return in functions that do not support the platform, but with warnings, and (2) avoid calling those functions in the first place. We ensure that pinctrl-nomadik is not used with this STA2X11 variant. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-24-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29gpio: nomadik: request dynamic ID allocationThéo Lebrun1-18/+36
Move away from statically allocated GPIO IDs. Switch to dynamic ID allocation. Static IDs are deprecated because they cause issues when multiple GPIO controllers are to be found on the same platform. Add a bit of complexity to do pin number -> GPIO chip + offset. Previously, bank number and offsets were retrieved using division and remainder (bank size being constant 32). Now, to get the pin number matching a bank base, we must know the sum of ngpios of previous banks. This is done in find_nmk_gpio_from_pin() which also exposes the offset inside the bank. Also remove the assumption that bank sizes are constant. Instead of using NMK_GPIO_PER_CHIP as bank size, use nmk_gpio_chips[i]->ngpio. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-19-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: follow conditional kernel coding conventionsThéo Lebrun1-8/+8
Fix strict checkpatch warnings relative to if-else blocks and bool expressions. Message types addressed: CHECK: Comparison to NULL could be written "!nmk_cfg_params[index].choice" CHECK: Unbalanced braces around else statement CHECK: Using comparison to false is error prone CHECK: Using comparison to true is error prone CHECK: braces {} should be used on all arms of this statement Before: 0 errors, 1 warnings, 16 checks. After: 0 errors, 1 warnings, 7 checks. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-13-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: follow whitespace kernel coding conventionsThéo Lebrun1-33/+33
Fix strict checkpatch warnings relative to whitespace. Message types addressed: ERROR: space required before the open parenthesis '(' WARNING: quoted string split across lines CHECK: Alignment should match open parenthesis CHECK: Please don't use multiple blank lines CHECK: line length of 103 exceeds 100 columns CHECK: spaces preferred around that '+' (ctx:VxV) Before: 1 errors, 2 warnings, 38 checks. After: 0 errors, 1 warnings, 16 checks. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-12-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: follow type-system kernel coding conventionsThéo Lebrun1-40/+38
Fix strict checkpatch warnings relative to types. Warning types addressed: WARNING: do not add new typedefs WARNING: Prefer 'unsigned int' to bare use of 'unsigned' WARNING: static const char * array should probably be static const char * const Total messages before: 1 errors, 40 warnings, 39 checks. Total messages after: 1 errors, 2 warnings, 38 checks. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-11-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: minimise indentation in probeThéo Lebrun1-11/+10
nmk_pinctrl_probe() iterates over each GPIO block. Use an early conditional continue to skip to the next iteration rather than indent all the loop code block. Do not change code logic. The block is changed from: for (i = 0; i < NMK_MAX_BANKS; i++) { x = of_parse_phandle(...); if (x) { ... do work ... } } To: for (i = 0; i < NMK_MAX_BANKS; i++) { x = of_parse_phandle(...); if (!x) continue; ... do work ... } Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-10-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: fix build warning (-Wpointer-to-int-cast)Théo Lebrun1-2/+2
Fix compiler warning found in the pinctrl-nomadik platform driver. GCC message is as such: drivers/pinctrl/nomadik/pinctrl-nomadik.c:1169:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-9-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: fix build warning (-Wformat)Théo Lebrun1-1/+1
Fix compiler warning found in the pinctrl-nomadik platform driver. GCC message is as such: drivers/pinctrl/nomadik/pinctrl-nomadik.c:855:21: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 5 has type ‘size_t {aka const long unsigned int}’ [-Wformat=] Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-8-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29pinctrl: nomadik: Kconfig: allow building with COMPILE_TESTThéo Lebrun1-1/+1
PINCTRL_NOMADIK, PINCTRL_STN8815 and PINCTRL_DB8500 depend on ARCH_U8500 or ARCH_NOMADIK. Add COMPILE_TEST as an option to allow test building the driver. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-7-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/Théo Lebrun5-892/+21
Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered two platform drivers: pinctrl & GPIO. Move the GPIO aspect to the drivers/gpio/ folder, as would be expected. Both drivers are intertwined for a reason; pinctrl requires access to GPIO registers for pinmuxing, pull-disable, disabling interrupts while setting the muxing and wakeup control. Information sharing is done through a shared array containing GPIO chips and a few helper functions. That shared array is not touched from gpio-nomadik when CONFIG_PINCTRL_NOMADIK is not defined. Make no change to the code that moved into gpio-nomadik; there should be no behavior change following. A few functions are shared and header comments are added. Checkpatch warnings are addressed. NUM_BANKS is renamed to NMK_MAX_BANKS. It is supported to compile gpio-nomadik without pinctrl-nomadik. The opposite is not true. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-6-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-29gpio: nomadik: fix offset bug in nmk_pmx_set()Théo Lebrun1-2/+4
Previously, the statement looked like: slpm[x] &= ~BIT(g->grp.pins[i]); Where: - slpm is a unsigned int pointer; - g->grp.pins[i] is a pin number. It can grow to more than 32. The expected shift amount is a pin bank offset. This bug does not occur on every group or pin: the altsetting must be NMK_GPIO_ALT_C and the pin must be 32 or above. It might have occured. For example, in pinctrl-nomadik-db8500.c, pin group i2c3_c_2 has the right altsetting and pins 229 and 230. Fixes: dbfe8ca259e1 ("pinctrl/nomadik: implement pin multiplexing") Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-5-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-08pinctrl: nomadik: use gpiochip_dup_line_label()Bartosz Golaszewski1-1/+5
Use the new gpiochip_dup_line_label() helper to safely retrieve the descriptor label. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-08pinctrl: abx500: use gpiochip_dup_line_label()Bartosz Golaszewski1-2/+7
Use the new gpiochip_dup_line_label() helper to safely retrieve the descriptor label. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-10-30pinctrl: Use device_get_match_data()Rob Herring2-13/+6
Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20231009172923.2457844-18-robh@kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-10-10pinctrl: nomadik: abx500: Convert to platform remove callback returning voidUwe Kleine-König1-3/+2
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231009083856.222030-8-u.kleine-koenig@pengutronix.de Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-02-22Merge tag 'pinctrl-v6.3-1' of ↵Linus Torvalds1-2/+0
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: nomadik: remove duplicate included header filesye xingchen1-2/+0
linux/seq_file.h is included more than once. Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Link: https://lore.kernel.org/r/202301161545238948580@zte.com.cn Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-01-04pinctrl: nomadik: Add missing header(s)Andy Shevchenko8-31/+54
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. Fixes: e5530adc17a7 ("pinctrl: Clean up headers") Cc: Randy Dunlap <rdunlap@infradead.org> Reported-by: Arnd Bergmann <arnd@arndb.de> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20221229100746.35047-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-09-19pinctrl: nomadik: remove dead code after DB8540 pinctrl removalLukas Bulwahn2-20/+0
Commit b6d09f780761 ("pinctrl: nomadik: Drop U8540/9540 support") removes the DB8540 pin controller driver and its config PINCTRL_DB8540. There is some code left-over in the generic nomadik pinctrl driver, i.e., drivers/pinctrl/nomadik/pinctrl-nomadik.{ch}, that is still around for the removed DB8540 pin controller driver. Remove this remaining dead code. This issue was discovered with ./scripts/checkkconfigsymbols.py. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20220919065435.27747-1-lukas.bulwahn@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-09-19pinctrl: nomadik: Make gpio irqchip immutableLinus Walleij1-24/+35
This makes the Nomadik GPIO irqchip immutable. Tested on the Samsung Galaxy SIII mini GT-I8190. Cc: Marc Zyngier <maz@kernel.org> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220917203036.167607-2-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-09-19pinctrl: nomadik: Dereference gpio_chip properlyLinus Walleij1-18/+12
The irq data passed to irc_chip handlers i the struct gpio_chip and nothing else. We are just lucky that the nomadik chip pointer is first in the struct. Use the proper dereferencing and helpers. Reported-by: Marc Zyngier <maz@kernel.org> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220917203036.167607-1-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-08-25pinctrl: nomadik: Convert drivers to use struct pingroup and PINCTRL_PINGROUP()Andy Shevchenko4-186/+180
The pin control header provides struct pingroup and PINCTRL_PINGROUP() macro. Utilize them instead of open coded variants in the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220621112904.65674-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-06-15pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_mapMiaoqian Lin1-1/+3
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak." Fixes: c2f6d059abfc ("pinctrl: nomadik: refactor DT parser to take two paths") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220607111602.57355-1-linmq006@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-05pinctrl: nomadik: Setup parent device and get rid of unnecessary of_node ↵Andy Shevchenko1-1/+1
assignment Some of the drivers do not set parent device. This may lead to obstacles during debugging or understanding the device relations from the Linux point of view. Assign parent device for GPIO chips created by these drivers. While at it, let GPIO library to assign of_node from the parent device. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220503151310.58762-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-04-23pinctrl: nomadik: Add new MC2 configLinus Walleij1-1/+6
The MC2 MMC interface can be configured with the FBCLK (feedback clock) unconnected, leaving the pin available for reuse for something else. Add a group mc2_a_2 for this. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220418164317.864418-1-linus.walleij@linaro.org
2022-03-15pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probeMiaoqian Lin1-1/+3
This node pointer is returned by of_parse_phandle() with refcount incremented in this function. Calling of_node_put() to avoid the refcount leak. Fixes: 32e67eee670e ("pinctrl: nomadik: Allow prcm_base to be extracted from Device Tree") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220307115116.25316-1-linmq006@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-09-17pinctrl: nomadik: Kconfig: Remove repeated config dependencyCai Huoqing1-1/+0
remove it because "if (ARCH_U8500 || ARCH_NOMADIK)" is already used Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Link: https://lore.kernel.org/r/20210825082536.2547-1-caihuoqing@baidu.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-12pinctrl: Bulk conversion to generic_handle_domain_irq()Marc Zyngier1-1/+1
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>
2021-01-06pinctrl: nomadik: Remove unused variable in nmk_gpio_dbg_show_oneNathan Chancellor1-1/+0
Clang warns: drivers/pinctrl/nomadik/pinctrl-nomadik.c:952:8: warning: unused variable 'wake' [-Wunused-variable] bool wake; ^ 1 warning generated. There were two wake declarations added to nmk_gpio_dbg_show_one when converting it to use irq_has_action but only one is used within its scope. Remove the unused one so there is no more warning. Fixes: f3925032d7fd ("pinctrl: nomadik: Use irq_has_action()") Reported-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Andrew Halaney <ajhalaney@gmail.com> Reviewed-by: Andrew Halaney <ajhalaney@gmail.com> Reported-by: Hulk Robot <hulkci@huawei.com> Reported-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Link: https://lore.kernel.org/r/20201229204710.1129033-1-natechancellor@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-25Merge tag 'irq-core-2020-12-23' of ↵Linus Torvalds1-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This is the second attempt after the first one failed miserably and got zapped to unblock the rest of the interrupt related patches. A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy accesses, inefficient and disfunctional code. The goal is to remove the export of irq_to_desc() to prevent these things from creeping up again" * tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) genirq: Restrict export of irq_to_desc() xen/events: Implement irq distribution xen/events: Reduce irq_info:: Spurious_cnt storage size xen/events: Only force affinity mask for percpu interrupts xen/events: Use immediate affinity setting xen/events: Remove disfunct affinity spreading xen/events: Remove unused bind_evtchn_to_irq_lateeoi() net/mlx5: Use effective interrupt affinity net/mlx5: Replace irq_to_desc() abuse net/mlx4: Use effective interrupt affinity net/mlx4: Replace irq_to_desc() abuse PCI: mobiveil: Use irq_data_get_irq_chip_data() PCI: xilinx-nwl: Use irq_data_get_irq_chip_data() NTB/msi: Use irq_has_action() mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc pinctrl: nomadik: Use irq_has_action() drm/i915/pmu: Replace open coded kstat_irqs() copy drm/i915/lpe_audio: Remove pointless irq_to_desc() usage s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt() parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts() ...
2020-12-15pinctrl: nomadik: Use irq_has_action()Thomas Gleixner1-5/+6
Let the core code do the fiddling with irq_desc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201210194044.065003856@linutronix.de
2020-11-11pinctrl: nomadik: db8500: Add more detailed LCD groupsLinus Walleij1-1/+9
We need a more granular distribution among funcion A and function B for the LCD pins for the Samsung GT-I9070. Provide some new pin groups so we can configure this phone properly. Link: https://lore.kernel.org/r/20201110232330.2242167-1-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27pinctrl: nomadik: Fix pull direction debug infoAndrew Halaney1-10/+6
The nomadik pinctrl hardware doesn't have any way to determine if the active pull is up or down. Reading the bit currently used to report if the pull is up/down indicates if the gpio input is reading high or low, it doesn't reflect the pull state. For this reason change the output from "pull up"/"pull down" to "pull enabled". This avoids confusing developers who were using the output to determine what the pull state is. Signed-off-by: Andrew Halaney <ajhalaney@gmail.com> Link: https://lore.kernel.org/r/20200806155322.GA25523@ola-jn9phv2.ad.garmin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28pinctrl: db8500: Fix some old bugsLinus Walleij1-1/+5
The Hulk robot reports these build warnings: drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:899:20: warning: ‘sbag_groups’ defined but not used [-Wunused-const-variable=] DB8500_FUNC_GROUPS(sbag, "sbag_oc2_1", "sbag_oc4_1"); ^ drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:570:23: warning: ‘ipgpio6_c_2_pins’ defined but not used [-Wunused-const-variable=] static const unsigned ipgpio6_c_2_pins[] = { DB8500_PIN_G3 }; ^~~~~~~~~~~~~~~~ drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:472:23: warning: ‘mc1dir_a_1_pins’ defined but not used [-Wunused-const-variable=] static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12, ^~~~~~~~~~~~~~~ drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:453:23: warning: ‘modem_a_1_pins’ defined but not used [-Wunused-const-variable=] static const unsigned modem_a_1_pins[] = { DB8500_PIN_D22, DB8500_PIN_C23, ^~~~~~~~~~~~~~ drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:430:23: warning: ‘kpskaskb_a_1_pins’ defined but not used [-Wunused-const-variable=] static const unsigned kpskaskb_a_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16 }; ^~~~~~~~~~~~~~~~~ They are just very old bugs in seldomly used pin groups. Fix the problem by using the pins and referencing the function. Reported-by: Hulk Robot <hulkci@huawei.com> Reported-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28pinctrl: ab8505: Define group for GPIO pin 50Linus Walleij1-0/+1
The Hulk robot reports an usused varible: drivers/pinctrl/nomadik/pinctrl-ab8505.c:137:23: warning: ‘gpio50_a_1_pins’ defined but not used [-Wunused-const-variable=] static const unsigned gpio50_a_1_pins[] = { AB8505_PIN_L4 }; ^~~~~~~~~~~~~~~ This variable actually should be used. Probably an oversight by the driver author. Cc: Patrice Chotard <patrice.chotard@st.com> Reported-by: Hulk Robot <hulkci@huawei.com> Reported-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16pinctrl: nomadik:remove unneeded variableDing Xiang1-3/+1
ret is unneeded, just return 0. Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com> Link: https://lore.kernel.org/r/1585554986-26521-1-git-send-email-dingxiang@cmss.chinamobile.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-21pinctrl: Use new GPIO_LINE_DIRECTIONMatti Vaittinen1-2/+5
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>
2019-11-19pinctrl: nomadik: db8500: Add mc0_a_2 pin group without direction controlStephan Gerhold1-1/+11
Some devices do not make use of the CMD0/DAT0/DAT2 direction control pins of the MMC/SD card 0 interface. In this case we should leave those pins unconfigured. A similar case already exists for "mc1_a_1" vs "mc1_a_2" when the MC1_FBCLK pin is not used. Add a new "mc0_a_2" pin group which is equal to "mc0_a_1" except with the MC0_CMDDIR, MC0_DAT0DIR and MC0_DAT2DIR pins removed. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20191117205439.239211-1-stephan@gerhold.net Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-10-16pinctrl: nomadik: Simplify interrupt handlerLinus Walleij1-14/+7
The inner interrupt handler was for the latent IRQ handling, and that will never be used, inline the unnecessary function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191014111154.9731-3-linus.walleij@linaro.org
2019-10-16pinctrl: nomadik: Pass irqchip when adding gpiochipLinus Walleij1-24/+15
We need to convert all old gpio irqchips to pass the irqchip setup along when adding the gpio_chip. For more info see drivers/gpio/TODO. For chained irqchips this is a pretty straight-forward conversion. Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191014111154.9731-2-linus.walleij@linaro.org
2019-10-16pinctrl: nomadik: Drop support for latent IRQLinus Walleij1-21/+0
The latent IRQs are IRQs that have occurred when the system was down in deep sleep and the GPIO block was powered off. The PRCMU (power reset and control unit) knows which GPIO line offset fired an IRQ to wake the system up (if so desired) and this second IRQ was used to replay the action when the system came back online after suspend(). This is now known to be the wrong approach to solve this problem: in a patch series Lina Iyer has suggested to instead make it possible to model the IRQs as hierarchical with double parents. Also the current device trees do not contain the right information to make this code work, the latent IRQ is not specified nowadays giving noise like this in the console: [ 0.612168] gpio 8012e000.gpio: IRQ index 1 not found [ 0.622523] gpio 8012e080.gpio: IRQ index 1 not found Let's delete the latent IRQ code and reimplement it properly when we need it. Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191014111154.9731-1-linus.walleij@linaro.org
2019-08-06pinctrl: nomadik: abx500: Add of_node_put() before returnNishka Dasgupta1-0/+1
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. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Link: https://lore.kernel.org/r/20190804155154.4916-1-nishkadg.linux@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-06pinctrl: nomadik: nomadik: Add of_node_put() before returnNishka Dasgupta1-0/+1
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. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Link: https://lore.kernel.org/r/20190804155117.4753-1-nishkadg.linux@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner3-12/+3
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): license terms gnu general public license gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20pinctrl: nomadik: fix possible object reference leakWangBo1-4/+13
The of_find_device_by_node takes a reference to the struct device when find the match device ,we should release it when fail. Signed-off-by: WangBo <wang.bo116@zte.com.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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