kernel/drivers/pinctrl/mvebu, branch linux-4.17.y

pinctrl: armada-37xx: Fix spurious irq management

2018-07-03T09:26:59Z

commit 702d1e81feae70aa16ca364b4d2d95ccad801022 upstream. Until now, if we found spurious irq in irq_handler, we only updated the status in register but not the status in the code. Due to this the system will got stuck dues to the infinite loop [gregory.clement@bootlin.com: update comment and add fix and stable tags] Fixes: 30ac0d3b0702 ("pinctrl: armada-37xx: Add edge both type gpio irq support") Cc: Signed-off-by: Terry Zhou Reviewed-by: Gregory CLEMENT Signed-off-by: Gregory CLEMENT Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman

Merge tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2018-02-02T22:22:53Z

Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v4.16 kernel cycle. Like with GPIO it is actually a bit calm this time. Core changes: - After lengthy discussions and partly due to my ignorance, we have merged a patch making pinctrl_force_default() and pinctrl_force_sleep() reprogram the states into the hardware of any hogged pins, even if they are already in the desired state. This only apply to hogged pins since groups of pins owned by drivers need to be managed by each driver, lest they could not do things like runtime PM and put pins to sleeping state even if the system as a whole is not in sleep. New drivers: - New driver for the Microsemi Ocelot SoC. This is used in ethernet switches. - The X-Powers AXP209 GPIO driver was extended to also deal with pin control and moved over from the GPIO subsystem. This circuit is a mixed-mode integrated circuit which is part of AllWinner designs. - New subdriver for the Qualcomm MSM8998 SoC, core of a high end mobile devices (phones) chipset. - New subdriver for the ST Microelectronics STM32MP157 MPU and STM32F769 MCU from the STM32 family. - New subdriver for the MediaTek MT7622 SoC. This is used for routers, repeater, gateways and such network infrastructure. - New subdriver for the NXP (former Freescale) i.MX 6ULL. This SoC has multimedia features and target "smart devices", I guess in-car entertainment, in-flight entertainment, industrial control panels etc. General improvements: - Incremental improvements on the SH-PFC subdrivers for things like the CAN bus. - Enable the glitch filter on Baytrail GPIOs used for interrupts. - Proper handling of pins to GPIO ranges on the Semtec SX150X - An IRQ setup ordering fix on MCP23S08. - A good set of janitorial coding style fixes" * tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (102 commits) pinctrl: mcp23s08: fix irq setup order pinctrl: Forward declare struct device pinctrl: sunxi: Use of_clk_get_parent_count() instead of open coding pinctrl: stm32: add STM32F769 MCU support pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping pinctrl: sx150x: Register pinctrl before adding the gpiochip pinctrl: sx150x: Unregister the pinctrl on release pinctrl: ingenic: Remove redundant dev_err call in ingenic_pinctrl_probe() pinctrl: sprd: Use seq_putc() in sprd_pinconf_group_dbg_show() pinctrl: pinmux: Use seq_putc() in pinmux_pins_show() pinctrl: abx500: Use seq_putc() in abx500_gpio_dbg_show() pinctrl: mediatek: mt7622: align error handling of mtk_hw_get_value call pinctrl: mediatek: mt7622: fix potential uninitialized value being returned pinctrl: uniphier: refactor drive strength get/set functions pinctrl: imx7ulp: constify struct imx_cfg_params_decode pinctrl: imx: constify struct imx_pinctrl_soc_info pinctrl: imx7d: simplify imx7d_pinctrl_probe pinctrl: imx: use struct imx_pinctrl_soc_info as a const pinctrl: sunxi-pinctrl: fix pin funtion can not be match correctly. pinctrl: qcom: Add msm8998 pinctrl driver ...

pinctrl: armada-37xx: account for const type of of_device_id.data

2018-01-08T07:15:48Z

The data field of an of_device_id structure has type const void *, so there is no need for a const-discarding cast when putting const values into such a structure. Done using Coccinelle. Signed-off-by: Julia Lawall Acked-by: Gregory CLEMENT Signed-off-by: Linus Walleij

pinctrl: mvebu: Delete an error message for a failed memory allocation in mvebu_pinctrl_probe()

2017-12-20T12:20:27Z

Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Linus Walleij

pinctrl: armada-37xx: Fix direction_output() callback behavior

2017-11-29T13:09:23Z

The direction_output callback of the gpio_chip structure is supposed to set the output direction but also to set the value of the gpio. For the armada-37xx driver this callback acted as the gpio_set_direction callback for the pinctrl. This patch fixes the behavior of the direction_output callback by also applying the value received as parameter. Cc: stable@vger.kernel.org Fixes: 5715092a458c ("pinctrl: armada-37xx: Add gpio support") Reported-by: Alexandre Belloni Signed-off-by: Gregory CLEMENT Signed-off-by: Linus Walleij

Merge tag 'pinctrl-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2017-11-16T18:57:11Z

Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v4.15 kernel cycle: Core: - The pin control Kconfig entry PINCTRL is now turned into a menuconfig option. This obviously has the implication of making the subsystem menu visible in menuconfig. This is happening because of two things: (a) Intel have started to deploy and depend on pin controllers in a way that is affecting users directly. This happens on the highly integrated laptop chipsets named after geographical places: baytrail, broxton, cannonlake, cedarfork, cherryview, denverton, geminilake, lewisburg, merrifield, sunrisepoint... It started a while back and now it is ever more evident that this is crucial infrastructure for x86 laptops and not an embedded obscurity anymore. Users need to be aware. (b) Pin control expanders on I2C and SPI that are arch-agnostic. Currently Semtech SX150X and Microchip MCP28x08 but more are expected. Users will have to be able to configure these in directly for their set-up. - Just go and select GPIOLIB now that we made sure that GPIOLIB is a very vanilla subsystem. Do not depend on it, if we need it, select it. - Exposing the pin control subsystem in menuconfig uncovered a bunch of obscure bugs that are now hopefully fixed, all more or less pertaining to Blackfin. - Unified namespace for cross-calls between pin control and GPIO. - New support for clock skew/delay generic DT bindings and generic pin config options for this. - Minor documentation improvements. Various: - The Renesas SH-PFC pin controller has evolved a lot. It seems Renesas are churning out new SoCs by the minute. - A bunch of non-critical fixes for the Rockchip driver. - Improve the use of library functions instead of open coding. - Support the MCP28018 variant in the MCP28x08 driver. - Static constifying" * tag 'pinctrl-v4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (91 commits) pinctrl: gemini: Fix missing pad descriptions pinctrl: Add some depends on HAS_IOMEM pinctrl: samsung/s3c24xx: add CONFIG_OF dependency pinctrl: gemini: Fix GMAC groups pinctrl: qcom: spmi-gpio: Add pmi8994 gpio support pinctrl: ti-iodelay: remove redundant unused variable dev pinctrl: max77620: Use common error handling code in max77620_pinconf_set() pinctrl: gemini: Implement clock skew/delay config pinctrl: gemini: Use generic DT parser pinctrl: Add skew-delay pin config and bindings pinctrl: armada-37xx: Add edge both type gpio irq support pinctrl: uniphier: remove eMMC hardware reset pin-mux pinctrl: rockchip: Add iomux-route switching support for rk3288 pinctrl: intel: Add Intel Cedar Fork PCH pin controller support pinctrl: intel: Make offset to interrupt status register configurable pinctrl: sunxi: Enforce the strict mode by default pinctrl: sunxi: Disable strict mode for old pinctrl drivers pinctrl: sunxi: Introduce the strict flag pinctrl: sh-pfc: Save/restore registers for PSCI system suspend pinctrl: sh-pfc: r8a7796: Use generic IOCTRL register description ...

Merge tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2017-11-15T01:23:44Z

Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.15 kernel cycle: Core: - Fix the semantics of raw GPIO to actually be raw. No inversion semantics as before, but also no open draining, and allow the raw operations to affect lines used for interrupts as the caller supposedly knows what they are doing if they are getting the big hammer. - Rewrote the __inner_function() notation calls to names that make more sense. I just find this kind of code disturbing. - Drop the .irq_base() field from the gpiochip since now all IRQs are mapped dynamically. This is nice. - Support for .get_multiple() in the core driver API. This allows us to read several GPIO lines with a single register read. This has high value for some usecases: it can be used to create oscilloscopes and signal analyzers and other things that rely on reading several lines at exactly the same instant. Also a generally nice optimization. This uses the new assign_bit() macro from the bitops lib that was ACKed by Andrew Morton and is implemented for two drivers, one of them being the generic MMIO driver so everyone using that will be able to benefit from this. - Do not allow requests of Open Drain and Open Source setting of a GPIO line simultaneously. If the hardware actually supports enabling both at the same time the electrical result would be disastrous. - A new interrupt chip core helper. This will be helpful to deal with "banked" GPIOs, which means GPIO controllers with several logical blocks of GPIO inside them. This is several gpiochips per device in the device model, in contrast to the case when there is a 1-to-1 relationship between a device and a gpiochip. New drivers: - Maxim MAX3191x industrial serializer, a very interesting piece of professional I/O hardware. - Uniphier GPIO driver. This is the GPIO block from the recent Socionext (ex Fujitsu and Panasonic) platform. - Tegra 186 driver. This is based on the new banked GPIO infrastructure. Other improvements: - Some documentation improvements. - Wakeup support for the DesignWare DWAPB GPIO controller. - Reset line support on the DesignWare DWAPB GPIO controller. - Several non-critical bug fixes and improvements for the Broadcom BRCMSTB driver. - Misc non-critical bug fixes like exotic errorpaths, removal of dead code etc. - Explicit comments on fall-through switch() statements" * tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (65 commits) gpio: tegra186: Remove tegra186_gpio_lock_class gpio: rcar: Add r8a77995 (R-Car D3) support pinctrl: bcm2835: Fix some merge fallout gpio: Fix undefined lock_dep_class gpio: Automatically add lockdep keys gpio: Introduce struct gpio_irq_chip.first gpio: Disambiguate struct gpio_irq_chip.nested gpio: Add Tegra186 support gpio: Export gpiochip_irq_{map,unmap}() gpio: Implement tighter IRQ chip integration gpio: Move lock_key into struct gpio_irq_chip gpio: Move irq_valid_mask into struct gpio_irq_chip gpio: Move irq_nested into struct gpio_irq_chip gpio: Move irq_chained_parent to struct gpio_irq_chip gpio: Move irq_default_type to struct gpio_irq_chip gpio: Move irq_handler to struct gpio_irq_chip gpio: Move irqdomain into struct gpio_irq_chip gpio: Move irqchip into struct gpio_irq_chip gpio: Introduce struct gpio_irq_chip pinctrl: armada-37xx: remove unused variable ...

Merge branch 'gpio-irqchip-rework' of /home/linus/linux-gpio into devel

2017-11-09T08:38:42Z

gpio: Move irqdomain into struct gpio_irq_chip

2017-11-08T13:06:21Z

In order to consolidate the multiple ways to associate an IRQ chip with a GPIO chip, move more fields into the new struct gpio_irq_chip. Signed-off-by: Thierry Reding Acked-by: Grygorii Strashko Signed-off-by: Linus Walleij

pinctrl: armada-37xx: remove unused variable

2017-11-03T22:19:48Z

A cleanup left behind a temporary variable that is now unused: drivers/pinctrl/mvebu/pinctrl-armada-37xx.c: In function 'armada_37xx_irq_startup': drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:693:20: error: unused variable 'chip' [-Werror=unused-variable] This removes the declarations as well. Fixes: 3ee9e605caea ("pinctrl: armada-37xx: Stop using struct gpio_chip.irq_base") Signed-off-by: Arnd Bergmann Signed-off-by: Linus Walleij