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path: root/drivers/pinctrl/intel/pinctrl-cherryview.c
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2025-02-24pinctrl: cherryview: use devm_kmemdup_array()Raag Jadav
Convert to use devm_kmemdup_array() and while at it, use source size instead of destination. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-12-02module: Convert symbol namespace to string literalPeter Zijlstra
Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-10-11pinctrl: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/pinctrl to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/20241007205803.444994-8-u.kleine-koenig@baylibre.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-11-04treewide: rename pinctrl_gpio_direction_output_new()Bartosz Golaszewski
Now that pinctrl_gpio_direction_output() is no longer used, let's drop the '_new' suffix from its improved variant. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-11-04treewide: rename pinctrl_gpio_direction_input_new()Bartosz Golaszewski
Now that pinctrl_gpio_direction_input() is no longer used, let's drop the '_new' suffix from its improved variant. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-11-04pinctrl: cherryview: use new pinctrl GPIO helpersBartosz Golaszewski
Replace the pinctrl helpers taking the global GPIO number as argument with the improved variants that instead take a pointer to the GPIO chip and the controller-relative offset. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-10-11pinctrl: cherryview: reduce scope of PIN_CONFIG_BIAS_HIGH_IMPEDANCE caseRaag Jadav
We have a couple of pinconfig cases inside the braces which are meant for PIN_CONFIG_BIAS_HIGH_IMPEDANCE case. Although it is valid C, it makes the code less readable and prone to misinterpretation. Limit the braces to PIN_CONFIG_BIAS_HIGH_IMPEDANCE case to avoid this. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-10-11pinctrl: cherryview: Convert to platform remove callback returning voidUwe Kleine-König
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> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-10-06pinctrl: cherryview: Simplify code with cleanup helpersAndy Shevchenko
Use macros defined in linux/cleanup.h to automate resource lifetime control in the driver. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-10-06pinctrl: cherryview: Avoid duplicated I/OAndy Shevchenko
In some cases we already read the value from the register followed by a reading of it again for other purposes, but the both reads are under the lock and bits we are insterested in are not going to change (they are not volatile from HW perspective). Hence, no need to read the same register twice. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-10-03pinctrl: cherryview: Replace kernel.h by what is actually being usedAndy Shevchenko
The kernel.h is a mess of unrelated things and we only used it as a proxy to array_size.h, hence switch from former to the latter. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-08-22pinctrl: cherryview: fix address_space_handler() argumentRaag Jadav
First argument of acpi_*_address_space_handler() APIs is acpi_handle of the device, which is incorrectly passed in driver ->remove() path here. Fix it by passing the appropriate argument and while at it, make both API calls consistent using ACPI_HANDLE(). Fixes: a0b028597d59 ("pinctrl: cherryview: Add support for GMMR GPIO opregion") Cc: stable@vger.kernel.org Signed-off-by: Raag Jadav <raag.jadav@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-08-21pinctrl: cherryview: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helperAndy Shevchenko
Since pm.h provides a helper for system no-IRQ PM callbacks, switch the driver to use it instead of open coded variant. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20230717172821.62827-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-08-15pinctrl: cherryview: reuse common functions from pinctrl-intelRaag Jadav
Reuse common functions from pinctrl-intel driver. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20230814060311.15945-4-raag.jadav@intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-06-19pinctrl: cherryview: Drop goto labelAndy Shevchenko
We do not use goto labels in the Intel pin control drivers, so drop the only one in the entire folder. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-06-06pinctrl: cherryview: Return correct value if pin in push-pull modeAndy Shevchenko
Currently the getter returns ENOTSUPP on pin configured in the push-pull mode. Fix this by adding the missed switch case. Fixes: ccdf81d08dbe ("pinctrl: cherryview: add option to set open-drain pin config") Fixes: 6e08d6bbebeb ("pinctrl: Add Intel Cherryview/Braswell pin controller support") Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-06-02pinctrl: cherryview: Don't use IRQ core constanst for invalid IRQAndy Shevchenko
The semantics of INVALID_HWIRQ is rather localized to IPI usage. Let's keep it that way. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2022-12-30pinctrl: cherryview: Convert to use new memeber in struct intel_functionAndy Shevchenko
Convert driver to use generic data type and hence a new member in the struct intel_function. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-10-24pinctrl: cherryview: Add missing header(s)Andy Shevchenko
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: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-06-20pinctrl: cherryview: Switch to to embedded struct pingroupAndy Shevchenko
Since struct intel_pingroup got a new member, switch the driver to use it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-05-17pinctrl: cherryview: Use GPIO chip pointer in chv_gpio_irq_mask_unmask()Andy Shevchenko
The callers already have dereferenced pointer to GPIO chip, no need to do it again in chv_gpio_irq_mask_unmask(). Hence, replace IRQ data pointer by GPIO chip pointer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-05-16pinctrl: cherryview: make irq_chip immutableAndy Shevchenko
Since recently, the kernel is nagging about mutable irq_chips: "not an immutable chip, please consider fixing it!" Drop the unneeded copy, flag it as IRQCHIP_IMMUTABLE, add the new helper functions and call the appropriate gpiolib functions. While at it, switch to use hwirq variable instead of pin for the sake of consistency. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-01-24pinctrl: cherryview: Trigger hwirq0 for interrupt-lines without a mappingHans de Goede
Commit bdfbef2d29dc ("pinctrl: cherryview: Don't use selection 0 to mark an interrupt line as unused") made the code properly differentiate between unset vs (hwirq) 0 entries in the GPIO-controller interrupt-line to GPIO pinnumber/hwirq mapping. This is causing some boards to not boot. This commit restores the old behavior of triggering hwirq 0 when receiving an interrupt on an interrupt-line for which there is no mapping. Fixes: bdfbef2d29dc ("pinctrl: cherryview: Don't use selection 0 to mark an interrupt line as unused") Reported-and-tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20220104164238.253142-1-hdegoede@redhat.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-11-26pinctrl: cherryview: Use temporary variable for struct deviceAndy Shevchenko
Use temporary variable for struct device to make code neater. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-11-26pinctrl: cherryview: Do not allow the same interrupt line to be used by 2 pinsHans de Goede
It is impossible to use the same interrupt line for 2 pins, this will result in the interrupts only being delivered to the IRQ handler for the pin for which chv_gpio_irq_type() was called last. The pinctrl-cherryview.c code relies on the BIOS to correctly setup the interrupt line, but there is a BIOS bug on at least the Medion Akoya E1239T and the GPD win models where both INT33FF:02 pin 8, used by the powerbutton and INT33FF:02 pin 21 used as IRQ input for the accelerometer are mapped to interrupt line 0. This causes 2 problems: 1. The accelerometer IRQ does not work, since the power button is probed later taking over the intr_lines[0] slot. 2. Since the accelerometer IRQ is not marked as wakeup, interrupt line 0 gets masked on suspend, causing the power button to not work to wake the system from suspend. Likewise on the Lenovo Yogabook, which has a touchscreen as keyboard and the keyboard half of the tablet also has a Wacom digitizer, the BIOS by default assigns the same interrupt line to the GPIOs used for their interrupts. Fix these problems by adding a check for this and assigning a new interrupt line to the 2nd pin for which chv_gpio_irq_type() gets called. With this fix in place the following 2 messages show up in dmesg on the Medion Akoya E1239T and the GPD win: cherryview-pinctrl INT33FF:02: interrupt line 0 is used by both pin 21 and pin 8 cherryview-pinctrl INT33FF:02: changing the interrupt line for pin 8 to 15 And the following gets logged on the Lenovo Yogabook: cherryview-pinctrl INT33FF:01: interrupt-line 0 is used by both pin 49 and pin 56 cherryview-pinctrl INT33FF:01: changing the interrupt line for pin 56 to 7 Note commit 9747070c11d6 ("Input: axp20x-pek - always register interrupt handlers") was added as a work around for the power button not being able to wakeup the system. This relies on using the PMIC's connection to the power button but that only works on systems with the AXP288 PMIC. Once this fix has been merged that workaround can be removed. Cc: Yauhen Kharuzhy <jekhor@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-11-26pinctrl: cherryview: Don't use selection 0 to mark an interrupt line as unusedHans de Goede
The selection 0 is a perfectly valid, so stop using it to have the special meaning of interrupt line not used in the intr_lines. Instead introduce a special CHV_INVALID_HWIRQ value, derived from INVALID_HWIRQ. which is never a valid selection and use that to indicate unused interrupt lines. Cc: Yauhen Kharuzhy <jekhor@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-08-12pinctrl: Bulk conversion to generic_handle_domain_irq()Marc Zyngier
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>
2020-09-07pinctrl: cherryview: Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOsHans de Goede
One some devices the GPIO should output the inverted value from what device-drivers / ACPI code expects. The reason for this is unknown, perhaps these systems use an external buffer chip on the GPIO which inverts the signal. The BIOS makes this work by setting the CHV_PADCTRL1_INVRXTX_TXDATA flag. Before this commit we would unconditionally clear all INVRXTX flags, including the CHV_PADCTRL1_INVRXTX_TXDATA flag when a GPIO is requested by a driver (from chv_gpio_request_enable()). This breaks systems using this setup. Specifically it is causing problems for systems with a goodix touchscreen, where the BIOS sets the INVRXTX_TXDATA flag on the GPIO used for the touchscreen's reset pin. The goodix touchscreen driver by defaults configures this pin as input (relying on the pull-up to keep it high), but the clearing of the INVRXTX_TXDATA flag done by chv_gpio_request_enable() causes it to be driven low for a brief time before the GPIO gets set to input mode. This causes the touchscreen controller to get reset. On most CHT devs with this touchscreen this leads to: [ 31.596534] Goodix-TS i2c-GDIX1001:00: i2c test failed attempt 1: -121 The driver retries this though and then everything is fine. But during reset the touchscreen uses its interrupt pin as bootstrap to determine which i2c address to use and on the Acer One S1003 the spurious reset caused by the clearing of the INVRXTX_TXDATA flag causes the controller to come back up again on the wrong i2c address, breaking things. This commit fixes both the -121 errors, as well as the total breakage on the Acer One S1003, by making chv_gpio_clear_triggering() not clear the INVRXTX_TXDATA flag if the pin is already configured as a GPIO. Note that chv_pinmux_set_mux() does still unconditionally clear the flag, so this only affects GPIO usage. Fixes: a7d4b171660c ("Input: goodix - add support for getting IRQ + reset GPIOs on Cherry Trail devices") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-08-20pinctrl: cherryview: Switch to use intel_pinctrl_get_soc_data()Andy Shevchenko
Since we have common helper to retrieve SoC data from driver data we may switch to use it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18pinctrl: cherryview: Utilize temporary variable to hold device pointerAndy Shevchenko
By one of the previous clean up change we got a temporary variable to hold a device pointer. It can be utilized in other calls in the ->probe() and save a bit of LOCs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18pinctrl: cherryview: Switch to use struct intel_pinctrlAndy Shevchenko
Now when all preparations are done we may easily switch to use struct intel_pinctrl instead of custom one. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18pinctrl: cherryview: Move custom community members to separate data structAndy Shevchenko
This is a preparatory patch for bigger clean up pending for Cherryview driver. There is no functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18pinctrl: cherryview: Drop stale commentAndy Shevchenko
There is no more .groups member in struct chv_pinctrl, drop associated comment because it's not applicable anymore. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-06-22pinctrl: cherryview: Re-use data structures from pinctrl-intel.h (part 3)Andy Shevchenko
We have some data structures duplicated across the drivers. Let's deduplicate them by using struct intel_pinctrl_soc_data, struct intel_community and struct intel_pinctrl_context that are being provided by pinctrl-intel.h. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-06-22pinctrl: cherryview: Convert chv_writel() to use chv_padreg()Andy Shevchenko
chv_writel() is now solely used for cases where we write data to the PAD registers. In order to simplify callers, calculate register address inside chv_writel(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-06-22pinctrl: cherryview: Introduce helpers to IO with common registersAndy Shevchenko
Pin control device and effectively the single community in it has a set of common registers. It's good to have a helpers to IO on them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-06-22pinctrl: cherryview: Introduce chv_readl() helperAndy Shevchenko
There are plenty of places where we call readl(chv_padreg(pctrl, offset, ...)); Replace them with newly introduced chv_readl() helper chv_readl(pctrl, offset, ...); Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-04-17pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handlerGrace Kao
According to Braswell NDA Specification Update (#557593), concurrent read accesses may result in returning 0xffffffff and write instructions may be dropped. We have an established format for the commit references, i.e. cdca06e4e859 ("pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler") Fixes: 0bd50d719b00 ("pinctrl: cherryview: prevent concurrent access to GPIO controllers") Signed-off-by: Grace Kao <grace.kao@intel.com> Reported-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Brian Norris <briannorris@chromium.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-04-13pinctrl: cherryview: Use GENMASK() consistentlyAndy Shevchenko
Use GENMASK() macro for all definitions where it's appropriate. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-04-13pinctrl: cherryview: Re-use data structures from pinctrl-intel.h (part 2)Andy Shevchenko
We have some data structures duplicated across the drivers. Let's deduplicate them by using ones that being provided by pinctrl-intel.h. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-12-13pinctrl: cherryview: Use GPIO direction definitionsMatti Vaittinen
Use new GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT when returning GPIO direction to GPIO framework. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-12-09pinctrl: cherryview: Pass irqchip when adding gpiochipHans de Goede
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. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-09pinctrl: cherryview: Add GPIO <-> pin mapping ranges via callbackHans de Goede
When IRQ chip is instantiated via GPIO library flow, the few functions, in particular the ACPI event registration mechanism, on some of ACPI based platforms expect that the pin ranges are initialized to that point. Add GPIO <-> pin mapping ranges via callback in the GPIO library flow. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-09pinctrl: cherryview: Split out irq hw-init into a separate helper functionHans de Goede
Split out irq hw-init into a separate chv_gpio_irq_init_hw() function. This is a preparation patch for passing the irqchip when adding the gpiochip. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-11-07pinctrl: cherryview: Missed type change to unsigned intAndy Shevchenko
We converted 'unsigned' type to be 'unsigned int' in the driver, but there are couple of leftovers. So, finish the task now. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-10-30pinctrl: cherryview: Allocate IRQ chip dynamicAndy Shevchenko
Keeping the IRQ chip definition static shares it with multiple instances of the GPIO chip in the system. This is bad and now we get this warning from GPIO library: "detected irqchip that is shared with multiple gpiochips: please fix the driver." Hence, move the IRQ chip definition from being driver static into the struct intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance. This patch is heavily based on the attachment to the bug by Christoph Marz. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=202543 Fixes: 6e08d6bbebeb ("pinctrl: Add Intel Cherryview/Braswell pin controller support") Depends-on: 83b9dc11312f ("pinctrl: cherryview: Associate IRQ descriptors to irqdomain") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-10-30pinctrl: cherryview: Fix spelling mistake in the commentAndy Shevchenko
One spelling mistake is being fixed: benerate -> generate. It is a complimentary fix to the commit 505485a83c55 ("pinctrl: cherryview fixed typo in comment"). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-10-30pinctrl: cherryview: Fix irq_valid_mask calculationHans de Goede
Commit 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation") has made the cherryview gpio numbers sparse, to get a 1:1 mapping between ACPI pin numbers and gpio numbers in Linux. This has greatly simplified things, but the code setting the irq_valid_mask was not updated for this, so the valid mask is still in the old "compressed" numbering with the gaps in the pin numbers skipped, which is wrong as irq_valid_mask needs to be expressed in gpio numbers. This results in the following error on devices using pin 24 (0x0018) on the north GPIO controller as an ACPI event source: [ 0.422452] cherryview-pinctrl INT33FF:01: Failed to translate GPIO to IRQ This has been reported (by email) to be happening on a Caterpillar CAT T20 tablet and I've reproduced this myself on a Medion Akoya e2215t 2-in-1. This commit uses the pin number instead of the compressed index into community->pins to clear the correct bits in irq_valid_mask for GPIOs using GPEs for interrupts, fixing these errors and in case of the Medion Akoya e2215t also fixing the LID switch not working. Cc: stable@vger.kernel.org Fixes: 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-10-01pinctrl: cherryview: restore Strago DMI workaround for all versionsDmitry Torokhov
This is essentially a revert of: e3f72b749da2 pinctrl: cherryview: fix Strago DMI workaround 86c5dd6860a6 pinctrl: cherryview: limit Strago DMI workarounds to version 1.0 because even with 1.1 versions of BIOS there are some pins that are configured as interrupts but not claimed by any driver, and they sometimes fire up and result in interrupt storms that cause touchpad stop functioning and other issues. Given that we are unlikely to qualify another firmware version for a while it is better to keep the workaround active on all Strago boards. Reported-by: Alex Levin <levinale@chromium.org> Fixes: 86c5dd6860a6 ("pinctrl: cherryview: limit Strago DMI workarounds to version 1.0") Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Alex Levin <levinale@chromium.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-09-19Merge tag 'pinctrl-v5.4-1' of ↵Linus Torvalds
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 v5.4 kernel cycle: Core changes: - Fix errors in example code in the documentation. New drivers: - Add support for JZ4760, JZ4760B, X1000, X1000E and X1500 to the Ingenic driver. - Support Cirrus Logic Madera CS47L92 and CS47L15. - Support Allwinner Sunxi V3S. - Support Aspeed 2600 BMC. - Support Qualcomm SC7180. - Support Marvell MVEBU CS115. Driver improvements: - Clean up a few drivers to use the devm_platform_ioremap_resource() helper. - Pass the irqchip when registering the gpio_chip in some pin controllers that are also GPIO controllers. - Support suspend/resume in the Tegra driver. - Support pull-up on the Broadcom BCM2711. - The Intel driver can now request locked pads. - Fix the UFS reset pin in the Qualcomm SDM845 driver" * tag 'pinctrl-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (112 commits) pinctrl: meson-gxbb: Fix wrong pinning definition for uart_c pinctrl: sh-pfc: Unlock on error in sh_pfc_func_set_mux() pinctrl: bcm: remove redundant assignment to pointer log pinctrl: iproc: Add 'get_direction' support pinctrl: iproc-gpio: Handle interrupts for multiple instances pinctrl: iproc-gpio: Fix incorrect pinconf configurations pinctrl: intel: mark intel_pin_to_gpio __maybe_unused pinctrl: qcom: sdm845: Fix UFS_RESET pin pinctrl: mvebu: add additional variant for standalone CP115 pinctrl: mvebu: Add CP110 missing pin functionality dt-bindings: cp110: document the new CP115 pinctrl compatible pinctrl: bcm2835: Pass irqchip when adding gpiochip pinctrl: meson: meson: Add of_node_put() before return pinctrl/gpio: Take MUX usage into account dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150l support dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150b support dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150 support pinctrl: amd: disable spurious-firing GPIO IRQs pinctrl: rza2: Include the appropriate headers pinctrl: rza2: Drop driver use of consumer flags ...