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path: root/drivers/gpio
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2018-01-04mx6ull: Handle the CONFIG_MX6ULL cases correctlyFabio Estevam
Since commit 051ba9e082f7 ("Kconfig: mx6ull: Deselect MX6UL from CONFIG_MX6ULL") CONFIG_MX6ULL does not select CONFIG_MX6UL anymore, so take this into consideration in all the checks for CONFIG_MX6UL. This fixes a boot regression. Reported-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Tested-by: Breno Lima <breno.lima@nxp.com> Tested-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de> Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
2017-12-13Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-shTom Rini
2017-12-12gpio/hsdk: Depend on DM_GPIO instead of simple DMAlexey Brodkin
This driver really is DM GPIO one and so we need to have a correct dependency, because DM alone doesn't provide required for CMD_GPIO call and we're seeing build failures like this: ---------------------->8--------------------- cmd/built-in.o: In function 'do_gpio': .../cmd/gpio.c:188: undefined reference to 'gpio_request' ... ---------------------->8--------------------- Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Eugeniy Paltsev <paltsev@synopsys.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-09gpio: rmobile: Add generic Gen3 compatibleMarek Vasut
Add generic compatible to the GPIO driver for Gen3 SoCs. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-12-09gpio: rmobile: Add R8A77995 D3 compatibleMarek Vasut
Add new compatible to the GPIO driver for R8A77995 D3 SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-12-09gpio: rmobile: Add R8A77970 V3M compatibleMarek Vasut
Add new compatible to the GPIO driver for R8A77970 V3M SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-30gpio: rmobile: Set GPIO mode in GPSR when requestedMarek Vasut
When requesting a GPIO, set the PFC GPSR register to GPIO mode, otherwise the GPIO cannot work. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-29gpio: uniphier: import dt-binginds header from LinuxMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-29bitops: collect BIT macros to include/linux/bitops.hMasahiro Yamada
Same macros are defined in various places. Collect them into include/linux/bitops.h like Linux. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-24ARC: HSDK: introduce CREG GPIO driverEugeniy Paltsev
The HSDK can manage some pins via CREG registers block. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2017-11-06stm32: fix STMicroelectronics copyrightPatrice Chotard
Uniformize STMicroelectronics copyrights headers for STM32 related code. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-15gpio: uniphier: rework single device node modelMasahiro Yamada
First, I implemented this driver as per-bank model, but it was a design mistake. - There are 31 banks in the maximum case. It is painful to add so many nodes to DT. - The IRQ control registers are shared between banks. Per-bank design is a problem for Linux. The counterpart for Linux turned around to the single node model. Rework based on the driver for Linux. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-10Merge branch 'rmobile' of git://git.denx.de/u-boot-shTom Rini
2017-10-08dm: gpio: pca953x: Drop pointless data structure checksSimon Glass
These checks cannot fail since driver model will not call a driver's method if it cannot fully create the driver data structures. It is confusing to have these checks and others might copy them. Drop this code. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-10-08dm: gpio: Correct use of -ENODEV in driversSimon Glass
In U-Boot -ENODEV means that there is no device. When there is a problem with the device, drivers should return an error like -ENXIO or -EREMOTEIO. When the device tree properties cannot be read correct , they should return -EINVAL. Update various GPIO drivers to follow this rule, to help with consistency for future driver writers. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-10-08dm: gpio: Add a comment about not copying some driversSimon Glass
These three drivers all use U_BOOT_DEVICE rather than device tree to create devices, so have to do manual allocation of platform data. This is not true for new platforms. Add a more explicit comment so that people do not copy this approach with new boards. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-10-08dm: gpio: vybrid_gpio: Correct driver's use of bind() methodSimon Glass
It does not look like this driver needs to use a bind() method. It does not manually create devices with device_bind() nor does it create devices using U_BOOT_DEVICE(). It seems to only use device tree. Therefore the manual allocation of platform data is not needed and is confusing. Also platform data should be set up by the ofdata_to_platdata() method, not bind(). Update the driver in case others use it as a model in future. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-09-28gpio: rmobile: Add Renesas RCar GPIO driverMarek Vasut
Add GPIO driver for the Renesas RCar SoCs . The driver currently supports only the RCar Gen3 R8A7795 and R8A7796 SoCs, but is easily extensible for the other RCar SoCs as well. This driver is meant to replace the pinmux part of SH_GPIO_PFC driver. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-09-18rockchip: gpio: remove outdated/misleading commentPhilipp Tomsich
Remove a comment claiming that this driver only supports the RK3288, as we also use it on the RK3368, RK3399 and (most likely) on other variants. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Version-changes: 2 - use the dev_read_addr_ptr function in rk_gpio.c
2017-09-18rockchip: gpio: convert to livetreePhilipp Tomsich
Update the Rockchip GPIO-bank driver to support a live tree. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Version-changes: 2 - use the dev_read_addr_ptr function in rk_gpio.c
2017-08-13stm32f1: remove stm32f1 supportPatrice Chotard
A few years ago STM32F1 SoCs support has been added : 0144caf22ce6acd5c gpio: stm32: add stm32f1 support 2d18ef2364fd3561a ARMv7M: add STM32F1 support But neither STM32F1 dedicated defconfig nor board was associated to these commits. Got confirmation from Tom Rini and Matt Porter to remove all this code [1] [1] http://u-boot.10912.n7.nabble.com/Remove-STM32F1-support-td301603.html Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-11Convert CONFIG_CMD_TCA642X to KconfigSimon Glass
This converts the following to Kconfig: CONFIG_CMD_TCA642X Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-08-11gpio: Drop sx151x driverSimon Glass
This driver is not used in U-Boot. Drop it and its associated CONFIG options. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-08-11Kconfig: Drop CONFIG_CMD_PCA953X_INFOSimon Glass
It does not seem worth having an option to enable another sub-command in this legacy driver. Drop this option so that the sub-command is always available. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-08-11Convert CONFIG_CMD_PCA953X to KconfigSimon Glass
This converts the following to Kconfig: CONFIG_CMD_PCA953X Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-08-01x86: Convert INTEL_ICH6_GPIO to KconfigBin Meng
This converts Intel ICH6 GPIO driver to Kconfig, and add it to the imply list of platform drivers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-28dm: tegra: gpio: Convert to support livetreeSimon Glass
Update the GPIO driver to support a live device tree. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Tested-on: Beaver, Jetson-TK1 Tested-by: Stephen Warren <swarren@nvidia.com>
2017-07-12imx: reorganize IMX code as other SOCsStefano Babic
Change is consistent with other SOCs and it is in preparation for adding SOMs. SOC's related files are moved from cpu/ to mach-imx/<SOC>. This change is also coherent with the structure in kernel. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Fabio Estevam <fabio.estevam@nxp.com> CC: Akshay Bhat <akshaybhat@timesys.com> CC: Ken Lin <Ken.Lin@advantech.com.tw> CC: Marek Vasut <marek.vasut@gmail.com> CC: Heiko Schocher <hs@denx.de> CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com> CC: Christian Gmeiner <christian.gmeiner@gmail.com> CC: Stefan Roese <sr@denx.de> CC: Patrick Bruenn <p.bruenn@beckhoff.com> CC: Troy Kisky <troy.kisky@boundarydevices.com> CC: Nikita Kiryanov <nikita@compulab.co.il> CC: Otavio Salvador <otavio@ossystems.com.br> CC: "Eric Bénard" <eric@eukrea.com> CC: Jagan Teki <jagan@amarulasolutions.com> CC: Ye Li <ye.li@nxp.com> CC: Peng Fan <peng.fan@nxp.com> CC: Adrian Alonso <adrian.alonso@nxp.com> CC: Alison Wang <b18965@freescale.com> CC: Tim Harvey <tharvey@gateworks.com> CC: Martin Donnelly <martin.donnelly@ge.com> CC: Marcin Niestroj <m.niestroj@grinn-global.com> CC: Lukasz Majewski <lukma@denx.de> CC: Adam Ford <aford173@gmail.com> CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr> CC: Boris Brezillon <boris.brezillon@free-electrons.com> CC: Soeren Moch <smoch@web.de> CC: Richard Hu <richard.hu@technexion.com> CC: Wig Cheng <wig.cheng@technexion.com> CC: Vanessa Maegima <vanessa.maegima@nxp.com> CC: Max Krummenacher <max.krummenacher@toradex.com> CC: Stefan Agner <stefan.agner@toradex.com> CC: Markus Niebel <Markus.Niebel@tq-group.com> CC: Breno Lima <breno.lima@nxp.com> CC: Francesco Montefoschi <francesco.montefoschi@udoo.org> CC: Jaehoon Chung <jh80.chung@samsung.com> CC: Scott Wood <oss@buserror.net> CC: Joe Hershberger <joe.hershberger@ni.com> CC: Anatolij Gustschin <agust@denx.de> CC: Simon Glass <sjg@chromium.org> CC: "Andrew F. Davis" <afd@ti.com> CC: "Łukasz Majewski" <l.majewski@samsung.com> CC: Patrice Chotard <patrice.chotard@st.com> CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> CC: Hans de Goede <hdegoede@redhat.com> CC: Masahiro Yamada <yamada.masahiro@socionext.com> CC: Stephen Warren <swarren@nvidia.com> CC: Andre Przywara <andre.przywara@arm.com> CC: "Álvaro Fernández Rojas" <noltari@gmail.com> CC: York Sun <york.sun@nxp.com> CC: Xiaoliang Yang <xiaoliang.yang@nxp.com> CC: Chen-Yu Tsai <wens@csie.org> CC: George McCollister <george.mccollister@gmail.com> CC: Sven Ebenfeld <sven.ebenfeld@gmail.com> CC: Filip Brozovic <fbrozovic@gmail.com> CC: Petr Kulhavy <brain@jikos.cz> CC: Eric Nelson <eric@nelint.com> CC: Bai Ping <ping.bai@nxp.com> CC: Anson Huang <Anson.Huang@nxp.com> CC: Sanchayan Maity <maitysanchayan@gmail.com> CC: Lokesh Vutla <lokeshvutla@ti.com> CC: Patrick Delaunay <patrick.delaunay@st.com> CC: Gary Bisson <gary.bisson@boundarydevices.com> CC: Alexander Graf <agraf@suse.de> CC: u-boot@lists.denx.de Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-06gpio: add static to get_function()Masahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-06-12dm: bcm6345_gpio: Set proper output level in bcm6345_gpio_direction_outputAxel Lin
Current code does not set output level in bcm6345_gpio_direction_output, fix it. Signed-off-by: Axel Lin <axel.lin@ingics.com>
2017-06-05gpio: samsung: Drop s3c2440_gpio driverSimon Glass
This is no longer used in U-Boot. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: gpio: power: Convert pm8916 drivers to livetreeSimon Glass
This PMIC driver (power and GPIO) is used by the sandbox SPMI tests. Update the drivers to support a live device tree so that the tests pass. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: gpio: Add live tree supportSimon Glass
Add support for requesting GPIOs with a live device tree. This involves adjusting the function signature for the legacy function gpio_request_by_name_nodev(), so fix up all callers. Signed-off-by: Simon Glass <sjg@chromium.org> Fixes to stm32f746-disco.c: Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-01dm: gpio: sandbox: Use dev_read...() functions to access DTSimon Glass
Use the new dev_read...() functions to access the device tree, so that a live tree can be used. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: gpio: Refactor to prepare for live tree supportSimon Glass
Move the main part of the GPIO request function into a separate function so that it can be used by the live tree function when added. Update the xlate method to use a node reference. Update all GPIO drivers to handle the modified xlate() method. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: core: Replace of_offset with accessor (part 2)Simon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Fix up inclusion of common.hSimon Glass
It is good practice to include common.h as the first header. This ensures that required features like the DECLARE_GLOBAL_DATA_PTR macro, configuration options and common types are available. Fix up some files which currently don't do this. This is necessary because driver model will soon start using global data and configuration in the dm/read.h header file, included via dm.h. The gd->fdt_blob value will be used to access the device tree and CONFIG options will be used to determine whether to support inline functions in the header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01atmel: Fix up use of dm_scan_fdt_node()Simon Glass
This function should not be used outside the core driver-model code. Update it to use dm_scan_fdt_dev() instead. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Rename dev_addr..() functionsSimon Glass
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Use dm.h header when driver mode is usedSimon Glass
This header includes things that are needed to make driver build. Adjust existing users to include that always, even if other dm/ includes are present Signed-off-by: Simon Glass <sjg@chromium.org>
2017-05-22gpio: rcar_gen3: Fix GPIO read supportKouei Abe
This patch fixes to read the GPIO status after confirming the INOUT setting. Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com> Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Tom Rini <trini@konsulko.com>
2017-05-18gpio: 74x164: make oe-pins optionalPeng Fan
Make oe-pins optional because some boards have fixed it to enable. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Simon Glass <sjg@chromium.org> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17x86: ich6_gpio: Add use-lvl-write-cache for I/O access modeBin Meng
Add a device-tree property use-lvl-write-cache that will cause writes to lvl to be cached instead of read from lvl before each write. This is required on some platforms that have the register implemented as dual read/write (such as Baytrail). Prior to this fix the blue USB port on the Minnowboard Max was unusable since USB_HOST_EN0 was set high then immediately set low when USB_HOST_EN1 was written. This also resolves the 'gpio clear | set' command warning like: "Warning: value of pin is still 0" Signed-off-by: George McCollister <george.mccollister@gmail.com> <rebased on latest origin/master, fixed all baytrail boards> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-15gpio: Move OMAP_GPIO to KconfigTom Rini
This driver is used often enough such that we want to have this enabled by default on any ARCH_OMAP2PLUS board, and this only compiles on ARCH_OMAP2PLUS due to required defines, so mark that as the depends. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-12gpio-uclass.c: Fix comparison of unsigned expression warningTom Rini
We declare that gpio_base (which is the base for counting gpios, not an address) is unsigned. Therefore the comparison with >= 0 is always true. As the desire is to allow for this base number to be 0, we can just drop this check. Reported by clang-3.8. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10dm: gpio: add BCM6345 gpio driverÁlvaro Fernández Rojas
This driver is based on linux/arch/mips/bcm63xx/gpio.c, simplified to allow defining one or two independent banks for each Broadcom SoC. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08dm: gpio: Add driver for stm32f7 gpio controllerVikas Manocha
This patch adds gpio driver supporting driver model for stm32f7 gpio. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Christophe KERELLO <christophe.kerello@st.com> [trini: Add depends on STM32] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-04-20gpio: sunxi: Add compatible string for R40 PIOChen-Yu Tsai
The PIO on the R40 SoC is mostly compatible with the A20. Only a few pin functions for mmc2 were added to the PC pingroup, to support 8 bit eMMCs. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-13gpio: at91_gpio: add the clock supportWenyou Yang
Add the clock support. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2017-04-13gpio: at91_gpio: add the device tree supportWenyou Yang
Add the device tree support. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andreas Bießmann <andreas@biessmann.org>