kernel/linux.git/drivers/pinctrl/qcom, branch v3.18.100

pinctrl: qcom: Don't clear status bit on irq_unmask

2017-04-22T05:15:06+00:00

commit a6566710adaa4a7dd5e0d99820ff9c9c30ee5951 upstream. Clearing the status bit on irq_unmask will discard any pending interrupt that did arrive after the irq_ack, i.e. while the IRQ handler function was executing. Fixes: f365be092572 ("pinctrl: Add Qualcomm TLMM driver") Cc: Stephen Boyd Reported-by: Timur Tabi Signed-off-by: Bjorn Andersson Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman

pinctrl: qcom: Don't iterate past end of function array

2015-01-30T01:40:42+00:00

commit bcd53f858d87f52843cc87764b283999126a50d6 upstream. Timur reports that this code crashes if nfunctions is 0. Fix the loop iteration to only consider valid elements of the functions array. Reported-by: Timur Tabi Cc: Pramod Gurav Cc: Bjorn Andersson Cc: Ivan T. Ivanov Cc: Andy Gross Fixes: 327455817a92 "pinctrl: qcom: Add support for reset for apq8064" Signed-off-by: Stephen Boyd Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman

Merge tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2014-10-09T18:58:15+00:00

Pull GPIO changes from Linus Walleij: "This is the bulk of GPIO changes for the v3.18 development cycle: - Increase the default ARCH_NR_GPIO from 256 to 512. This was done to avoid having a custom header for the x86 architecture - GPIO is custom and complicated enough as it is already! We want to move to a radix to store the descriptors going forward, and finally get rid of this fixed array size altogether. - Endgame patching of the gpio_remove() semantics initiated by Abdoulaye Berthe. It is not accepted by the system that the removal of a GPIO chip fails during eg reboot or shutdown, and therefore the return value has now painfully been refactored away. For special cases like GPIO expanders on a hot-pluggable bus like USB, we may later add some gpiochip_try_remove() call, but for the cases we have now, return values are moot. - Some incremental refactoring of the gpiolib core and ACPI GPIO library for more descriptor usage. - Refactor the chained IRQ handler set-up method to handle also threaded, nested interrupts and set up the parent IRQ correctly. Switch STMPE and TC3589x drivers to use this registration method. - Add a .irq_not_threaded flag to the struct gpio_chip, so that also GPIO expanders that block but are still not using threaded IRQ handlers. - New drivers for the ARM64 X-Gene SoC GPIO controller. - The syscon GPIO driver has been improved to handle the "DSP GPIO" found on the TI Keystone 2 SoC:s. - ADNP driver switched to use gpiolib irqchip helpers. - Refactor the DWAPB driver to support being instantiated from and MFD cell (platform device). - Incremental feature improvement in the Zynq, MCP23S08, DWAPB, OMAP, Xilinx and Crystalcove drivers. - Various minor fixes" * tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (52 commits) gpio: pch: Build context save/restore only for PM pinctrl: abx500: get rid of unused variable gpio: ks8695: fix 'else should follow close brace '}'' gpio: stmpe: add verbose debug code gpio: stmpe: fix up interrupt enable logic gpio: staticize xway_stp_init() gpio: handle also nested irqchips in the chained handler set-up gpio: set parent irq on chained handlers gpiolib: irqchip: use irq_find_mapping while removing irqchip gpio: crystalcove: support virtual GPIO pinctrl: bcm281xx: make Kconfig dependency more strict gpio: kona: enable only on BCM_MOBILE or for compile testing gpio, bcm-kona, LLVMLinux: Remove use of __initconst gpio: Fix ngpio in gpio-xilinx driver gpio: dwapb: fix pointer to integer cast gpio: xgene: Remove unneeded #ifdef CONFIG_OF guard gpio: xgene: Remove unneeded forward declation for struct xgene_gpio gpio: xgene: Fix missing spin_lock_init() gpio: ks8695: fix switch case indentation gpiolib: add irq_not_threaded flag to gpio_chip ...

pinctrl: qcom: use restart_notifier mechanism for ps_hold

2014-09-26T08:36:30+00:00

By converting to the restart_notifier mechanism for restart, we allow for other mechanisms, like the watchdog, to be used for restart in the case where PS_HOLD has failed to reset the chip. Since this mechanism may be one of several mechanisms registered, change the post-ps_hold write timeout to be a more reasonable 1 second instead of 10 seconds. Choose priority 128, as according to documentation, this mechanism "is sufficient to restart the entire system". Tested-by: Pramod Gurav Signed-off-by: Josh Cartwright Acked-by: Bjorn Andersson Reviewed-by: Guenter Roeck Signed-off-by: Linus Walleij

pinctrl: remove remaining users of gpiochip_remove() retval

2014-09-23T15:51:12+00:00

Some drivers accidentally still use the return value from gpiochip_remove(). Get rid of them so we can simplify this function and get rid of the return value. Cc: Abdoulaye Berthe Signed-off-by: Linus Walleij

pinctrl: qcom: Make the target processor value configurable

2014-09-04T16:19:31+00:00

Currently the value used to specify that interrupts from the gpio should be routed to the application processor is hardcoded for all Qualcomm SoCs. But the new APQ8084 SoC uses a different value. To resolve this, we make this value configurable for each SoC. For all existing SoCs we continue to use the current value, and only for APQ8084 we use the new value. Suggested-by: Bjorn Andersson Acked-by: Bjorn Andersson Signed-off-by: Georgi Djakov Signed-off-by: Linus Walleij

pinctrl: qcom: Add APQ8084 pinctrl support

2014-09-04T16:14:59+00:00

This patchset adds pinctrl support for the Qualcomm APQ8084 platform. This set of patches adds pinctrl support for the Qualcomm APQ8084 platform. The first patch adds the pin definitions. The second patch contains the devicetree binding documentation. The third patch adds the DT node. The last patch makes the INTR_TARGET_PROC_APPS value configurable and defines it for each existing SoC. Tested on IFC6540 board. Changes since v3: - Fixed the sdc valid pin values in the binding documentation - sdc2 instead of sdc3. (suggested by Bjorn Andersson) Changes since v2: - Fixed some incorrect bits and offsets. (suggested by Bjorn Andersson) - Updated binding documentation to follow the format of msm8960. (suggested by Bjorn Andersson) - Added fourth patch, which removes the hardcoded INTR_TARGET_PROC_APPS value and makes it configurable. Also we keep the current value for existing SoCs. (suggested by Bjorn Andersson) Changes since v1: - Updated the total number of pins (suggested by Bjorn Andersson) - Added the missing pin info (provided by Andy Gross) - Updated groups and functions to be consistent with other pinctrls. (suggested by Andy Gross) - Removed unused functions, qdss and test pins. (suggested by Andy Gross) - Updated the documentation with the possible functions. Reviewed-by: Andy Gross Acked-by: Bjorn Andersson Signed-off-by: Georgi Djakov Signed-off-by: Linus Walleij

pinctrl: clean up after enable refactoring

2014-09-04T08:05:07+00:00

commit 2243a87d90b42eb38bc281957df3e57c712b5e56 "pinctrl: avoid duplicated calling enable_pinmux_setting for a pin" removed the .disable callback from the struct pinmux_ops, making the .enable() callback the only remaining callback. However .enable() is a bad name as it seems to imply that a muxing can also be disabled. Rename the callback to .set_mux() and also take this opportunity to clean out any remaining mentions of .disable() from the documentation. Acked-by: Stephen Warren Acked-by: Bjorn Andersson Acked-by: Fan Wu Signed-off-by: Linus Walleij

pinctrl: qcom: Add support for reset for apq8064

2014-09-02T12:34:11+00:00

This patch adds support for reset functions to reboot the boards with soc apq8064. Cc: Linus Walleij Cc: "Ivan T. Ivanov" Cc: Stephen Boyd Cc: Andy Gross Acked-by: Bjorn Andersson Signed-off-by: Pramod Gurav Signed-off-by: Linus Walleij

pinctrl: qcom: remove gpiochip in failure cases

2014-09-02T12:27:40+00:00

This patch releases gpiochip related resources by calling gpiochip_remove when either of gpiochip_add_pin_range and gpiochip_irqchip_add fails. CC: Linus Walleij CC: "Ivan T. Ivanov" Acked-by: Bjorn Andersson Signed-off-by: Pramod Gurav Signed-off-by: Linus Walleij