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path: root/drivers/gpio
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* ENGR00315894-60 GPIO: Modify driver mxc_gpio to support RDC SemaphoresYe.Li2014-06-17-0/+50
| | | | | | | | | | | | For GPIO group which shared by multiple masters, it may set in RDC to shared and semaphore required. Before access the GPIO register, the GPIO driver must get the RDC semaphore, and release the semaphore after the GPIO register access. When CONFIG_MXC_RDC is set, the features related to RDC semaphores is enabled in mxc_gpio driver. Signed-off-by: Ye.Li <B37916@freescale.com>
* ENGR00315499-18 driver:MAX7310: Add GPIO expander driver for MAX7310Ye.Li2014-06-13-1/+169
| | | | | | | | | | | | Implement simple functionalities for MAX7310 GPIO input and output. Because MAX7310 is a off-chip device and need to co-exist with on-chip GPIO, new APIs are added specifically for expander device. CONFIG_MAX7310_IOEXP is used to enable the MAX7310 driver. The I2C related configurations also need to set together. Signed-off-by: Ye.Li <B37916@freescale.com> Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
* sandbox: Convert GPIOs to use driver modelSimon Glass2014-03-04-78/+139
| | | | | | Convert sandbox over to use driver model GPIOs. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Add GPIO support and testsSimon Glass2014-03-04-0/+268
| | | | | | | | | | | | | | | | | | | | | | | | | | Add driver model support for GPIOs. Since existing GPIO drivers do not use driver model, this feature must be enabled by CONFIG_DM_GPIO. After all GPO drivers are converted over we can perhaps remove this config. Tests are provided for the sandbox implementation, and are a sufficient sanity check for basic operation. The GPIO uclass understands the concept of named banks of GPIOs, with each GPIO device providing a single bank. Within each bank the GPIOs are numbered using an offset from 0 to n-1. For example a bank named 'b' with 20 offsets will provide GPIOs named b0 to b19. Anonymous GPIO banks are also supported, and are just numbered without any prefix. Each time a GPIO driver is added to the uclass, the GPIOs are renumbered accordinging, so there is always a global GPIO numbering order. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Signed-off-by: Viktor Křivák <viktor.krivak@gmail.com> Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
* sizes.h - consolidate for all architecturesAlexey Brodkin2014-03-04-1/+1
| | | | | | | | | | | | | | | | Copied from Linux sources "include/linux/sizes.h" commit 413541dd66d51f791a0b169d9b9014e4f56be13c Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Tom Rini <trini@ti.com> Cc: Stefan Roese <sr@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Acked-by: Tom Rini <trini@ti.com> Acked-by: Stefan Roese <sr@denx.de> [trini: Add bcm Kona platforms to the patch] Signed-off-by: Tom Rini <trini@ti.com>
* gpio: kona: Add Kona gpio driverDarwin Rambo2014-02-22-0/+142
| | | | | | | | | Add support for the Kona GPIO controller found on Broadcom mobile SoCs. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Reviewed-by: Steve Rae <srae@broadcom.com> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Tim Kryger <tkryger@linaro.org>
* s5p: gpio: change gpio coding method for s5p gpio.Przemyslaw Marczak2014-02-03-6/+9
| | | | | | | | | | | | | Old s5p gpio coding method was not clean and was not working properly for all parts and banks. New method is clean and easy to extend. Gpio coding mask: 0x000000ff - pin number 0x00ffff00 - bank offset 0xff000000 - part number Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'Albert ARIBAUD2014-01-06-2/+2
|\ | | | | | | | | | | | | | | Conflicts: include/micrel.h The conflict above was trivial, caused by four lines being added in both branches with different whitepace.
| * mxs_gpio: fix the handling in gpio_direction_output()Michael Heimpold2013-11-13-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Setting the direction and an output value should be done by 1) set the desired output value, 2) switch to output. If this is done in the inverse order, there can be a glitch on the GPIO line. This patch fixes this by using the order as described above. Signed-off-by: Michael Heimpold <mhei@heimpold.de> Acked-by: Stefano Babic <sbabic@denx.de>
* | at91: add new gpio pin definitionsAndreas Bießmann2013-12-09-3/+1
|/ | | | | | | | This patch define new names for GPIO pins on at91 devices. Follow up patches will convert the whole infrastructure to use these new definitions. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Tested-by: Bo Shen <voice.shen@atmel.com>
* Add support for SX151x SPI GPIO ExpandersViktar Palstsiuk2013-11-08-0/+243
| | | | Signed-off-by: Viktar Palstsiuk <viktar.palstsiuk@promwad.com>
* Merge branch 'master' of git://git.denx.de/u-boot-blackfinTom Rini2013-11-04-17/+0
|\ | | | | | | | | | | | | | | | | Easy to resolve conflict on the GPIO change. Conflicts: arch/blackfin/cpu/Makefile Signed-off-by: Tom Rini <trini@ti.com>
| * blackfin: Move machine specific gpio_port_t structure back to blackfin arch ↵Steven Miao2013-11-04-17/+0
| | | | | | | | | | | | | | | | | | folder. The gpio register mappings are different among blackfin processors. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* | drivers: convert makefiles to Kbuild styleMasahiro Yamada2013-10-31-48/+25
|/ | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Merge branch 'u-boot-atmel/master' into 'u-boot-arm/master'Albert ARIBAUD2013-09-04-113/+182
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| * gpio: atmel: add copyright and remove error header infoBo Shen2013-08-22-1/+1
| | | | | | | | | | | | Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Jens Scharsig <js_at_ng@scharsoft.de> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * gpio: atmel: add gpio common API supportBo Shen2013-08-22-0/+43
| | | | | | | | | | | | | | | | add gpio common API support for gpio command Signed-off-by: Bo Shen <voice.shen@atmel.com> [fix unnecessary cast] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| * gpio: atmel: fix code to use pointer for pio portBo Shen2013-08-22-112/+138
| | | | | | | | | | | | | | | | fix code to use pointer for pio port as the warning message suggested remove the warning message Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* | SPDX-License-Identifier: fixing some problematic GPL-2.0 filesWolfgang Denk2013-08-19-18/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike the other patches in this series so far, this commit fixes a ambiguity in the license terms for some OMAP files: the code was originally derived from the Linux kernel sources, where it was clearly marked as GPL-2.0 (i. e. without the "or later" part), but the U-Boot version had a GPL-2.0+ file header added, apparently without permission / relicensing from the original authors of the code. Insert a GPL-2.0 SPDX-License-Identifier to fix this. Signed-off-by: Wolfgang Denk <wd@denx.de> cc: Tom Rix <Tom.Rix@windriver.com> Cc: Tom Rini <trini@ti.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Acked-by: Tom Rini <trini@ti.com>
* | Merge branch 'master' of git://88.191.163.10/u-boot-armTom Rini2013-08-18-2/+336
|\ \ | |/ | | | | | | | | | | | | | | | | Fixup an easy conflict over adding the clk_get prototype and USB_OTG defines for am33xx having moved. Conflicts: arch/arm/include/asm/arch-am33xx/hardware.h Signed-off-by: Tom Rini <trini@ti.com>
| * Merge git://git.denx.de/u-boot-armStefano Babic2013-07-31-326/+354
| |\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: board/freescale/mx6qsabrelite/Makefile board/freescale/mx6qsabrelite/mx6qsabrelite.c include/configs/mx6qsabrelite.h Signed-off-by: Stefano Babic <sbabic@denx.de>
| | * gpio: tca642x: Add the tca642x gpio expander driverDan Murphy2013-07-30-0/+334
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add the tca642x gpio expander driver Datasheet: http://www.ti.com/product/tca6424a Signed-off-by: Dan Murphy <dmurphy@ti.com>
| * | mxc_gpio: Correct the GPIO handling in gpio_direction_output()Dirk Behme2013-07-24-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Setting the direction and an output value should be done by First, set the desired output value. Then, switch to output. If this is done in the inverse order, like at the moment, there can be a glitch on the GPIO line while switching first the old output value and aftwards the new one. Fix this by inverting the order of the direction/set_value calls. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Stefano Babic <sbabic@denx.de>
* | | gpio: pca953x: Use ARRAY_SIZE instead of reinventing itAxel Lin2013-08-16-4/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
* | | gpio: adi_gpio2: Unreserve gpio in special_gpio_free()Axel Lin2013-07-31-2/+2
| |/ |/| | | | | | | | | | | In special_gpio_free(), call unreserve() rather than reserve() to release gpio. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* | Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-326/+20
|/ | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'Albert ARIBAUD2013-07-10-11/+4
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| * gpio: s5p_gpio: Call s5p_gpio_set_value() instead of open-codeAxel Lin2013-06-25-8/+1
| | | | | | | | | | | | | | Call s5p_gpio_set_value() to avoid code duplication. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * gpio: s3c2440_gpio: Fix wrong writel argumentsAxel Lin2013-06-25-3/+3
| | | | | | | | | | | | | | | | Current code had writel arguments the wrong way around, fix it. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | ARM: OMAP: GPIO: Fix valid range and enable usage of all GPIOs on OMAP5Axel Lin2013-07-02-1/+1
|/ | | | | | | | | | | | | | | | The omap_gpio driver is used by AM33XX, OMAP3/4, OMAP54XX and DRA7XX SoCs. These SoCs have different gpio count but currently omap_gpio driver uses hard coded 192 which is wrong. This patch fixes this issue by: 1. Move define of OMAP_MAX_GPIO to all arch/arm/include/asm/arch-omap*/gpio.h. 2. Update gpio bank settings and enable GPIO modules 7 & 8 clocks for OMAP5. Thanks for Lubomir Popov to provide valuable comments to fix this issue. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Lubomir Popov <lpopov@mm-sol.com> Acked-by: Heiko Schocher <hs@denx.de>
* bfin: Move gpio support for bf54x and bf60x into the generic driver folder.Sonic Zhang2013-05-13-0/+441
| | | | | | | | | | | | | | | The gpio spec for bf54x and bf60x differ a lot from the old gpio driver for bf5xx. A lot of machine macros are used to accomodate both code in one gpio driver. This patch split the old gpio driver and move new gpio2 support to the generic gpio driver folder. - To enable gpio2 driver, macro CONFIG_ADI_GPIO2 should be defined in the board's config header file. - The gpio2 driver supports bf54x, bf60x and future ADI processors, while the older gpio driver supports bf50x, bf51x, bf52x, bf53x and bf561. - All blackfin specific gpio function names are replaced by the generic gpio APIs. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* gpio: Add support for microblaze xilinx GPIOMichal Simek2013-05-09-0/+365
| | | | | | | | | | | | | | | | | | | | | | | | Microblaze uses gpio which is connected to the system reset. Currently gpio subsystem wasn't used for it. Add gpio driver and change Microblaze reset logic to be done via gpio subsystem. There are various configurations which Microblaze can have that's why gpio_alloc/gpio_alloc_dual(for dual channel) function has been introduced and gpio can be allocated dynamically. Adding several gpios IP is also possible and supported. For listing gpio configuration please use "gpio status" command This patch also remove one compilation warning: microblaze-generic.c: In function 'do_reset': microblaze-generic.c:38:47: warning: operation on '*1073741824u' may be undefined [-Wsequence-point] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* Merge u-boot/master into u-boot-ti/masterTom Rini2013-03-11-2/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | In master we had already taken a patch to fix the davinci GPIO code for CONFIG_SOC_DM646X and in u-boot-ti we have additional patches to support DA830 (which is CONFIG_SOC_DA8XX && !CONFIG_SOC_DA850). Resolve these conflicts manually and comment the #else/#endif lines for clarity. Conflicts: arch/arm/include/asm/arch-davinci/gpio.h drivers/gpio/da8xx_gpio.c Signed-off-by: Tom Rini <trini@ti.com>
| * gpio: Build the da8xx_gpio code for the davinci644x deviceHolger Hans Peter Freyther2013-02-20-0/+5
| | | | | | | | | | | | | | The differences include the number of GPIOs and that one is not required to set the pinmux on request. Signed-off-by: Holger Hans Peter Freyther <holger@freyther.de>
* | da8xx: Add the missing pinmux for da830 to the gpio driverTomas Novotny2013-02-18-0/+133
|/ | | | | | | | | The pinmux was generated from linux/arch/arm/mach-davinci/da830.c as of kernel version 3.7.5. If the driver is used for the da850, then SoC variant must be specified by CONFIG_SOC_DA850. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Cc: Tom Rini <trini@ti.com>
* Merge branch 'u-boot-ti/master' into 'u-boot-arm/master'Albert ARIBAUD2013-01-08-7/+3
|\ | | | | | | | | This required manual merging drivers/mtd/nand/Makefile and adding am335x_evm support for CONFIG_SPL_NAND_DRIVERS
| * gpio: add gpio_is_valid() to omap_gpio APINikita Kiryanov2012-12-10-7/+3
| | | | | | | | | | | | | | Add gpio_is_valid() to omap_gpio API Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
* | Merge branch 'master' of git://git.denx.de/u-boot into resolveMinkyu Kang2012-12-10-0/+291
|\ \ | |/ |/| | | | | | | | | | | | | | | | | Conflicts: README board/samsung/universal_c210/universal.c drivers/misc/Makefile drivers/power/power_fsl.c include/configs/mx35pdk.h include/configs/mx53loco.h include/configs/seaboard.h
| * x86: gpio: Add additional GPIO banks to the ICH6 driverBill Richardson2012-12-06-62/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can generally trust the ICH to have GPIO Bank 0 (the first 32 pins) in the same place across all versions. This change adds two more banks, for up to 96 GPIOS. BUT: - Not all chipsets have the same number of GPIOs - Not all chipsets have the same number of GPIO banks - Not all chipsets put the additional banks at the same offset from GPIOBASE - There so many chipset variants that it's pretty much impossible to support them all, or even keep track of the new ones. So, although this adds suppport for the additional banks that seem to work for the particular variants of CougarPoint Mobile chipsets that we've tried, there's no chance it will support everything Intel produces. Good luck. Signed-off-by: Bill Richardson <wfrichar@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
| * x86: gpio: Add GPIO driver for Intel ICH6 and later.Bill Richardson2012-12-06-0/+243
| | | | | | | | | | | | | | | | | | Implement <asm-generic/gpio.h> functions for Intel ICH6 and later. Only GPIOs 0-31 are handled by this code. Signed-off-by: Bill Richardson <wfrichar@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* | gpio:fix: Proper handling of GPIO subsystem parts at Samsung devicesŁukasz Majewski2012-11-15-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now proper GPIO parts numbering is handled at Samsung devices. This fix is necessary for code using GPIO located at other banks than first. Test HW: - Exynos4210 - Trats - S5PC110 - goni Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | mx6: use CONFIG_MX6 instead of CONFIG_MX6QTroy Kisky2012-11-10-3/+3
|/ | | | | | | | | | Use CONFIG_MX6 when the particular processor variant isn't important. Reserve the use of CONFIG_MX6Q to specifically test for quad cores variant. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* drivers/gpio/mpc83xx_gpio.c: sparse fixesKim Phillips2012-11-04-2/+2
| | | | | | | mpc83xx_gpio.c:166:26: warning: non-ANSI function declaration of function 'mpc83xx_gpio_init_f' mpc83xx_gpio.c:190:26: warning: non-ANSI function declaration of function 'mpc83xx_gpio_init_r' Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* Tegra20: Move some include files to arch-tegra for sharing with Tegra30Tom Warren2012-10-15-1/+1
| | | | | | | | | | | The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h. Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20' 'root' file. All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK. Signed-off-by: Tom Warren <twarren@nvidia.com>
* GPIO: pca953x: fix error reportingLaurence Withers2012-10-08-14/+35
| | | | | | | | Use the standard CMD_RET_* constants to clearly report errors from the pca953x command. In addition, print error messages when I2C communication fails. Signed-off-by: Laurence Withers <lwithers@guralp.com>
* GPIO: pca953x: fix spelling in helpLaurence Withers2012-10-08-1/+1
| | | | Signed-off-by: Laurence Withers <lwithers@guralp.com>
* ARM : Add GPIO Driver and IOMUX definition for S3C2440Gabriel Huau2012-10-03-0/+96
| | | | | | | It's now possible to use the gpio driver interface for s3c2440. This patch add iomux definitions too. Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr>
* Tegra: Change Tegra20 to Tegra in common code, prep for T30Tom Warren2012-09-10-4/+4
| | | | | | | | | | Convert TEGRA20_ defines to either TEGRA_ or NV_PA_ where appropriate. Convert tegra20_ source file and function names to tegra_, also. Upcoming Tegra30 port will use common code/defines/names where possible. Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com>
* gpio: add gpio api support to mx27 (v4)trem2012-09-01-3/+5
| | | | | | | The gpio api has been tested on an armadeus apf27. Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Acked-by: Stefano Babic <sbabic@denx.de>
* mxc: Make gpio_get_value() use PSRBenoît Thébaudeau2012-09-01-1/+1
| | | | | | | | | | | gpio_get_value() should use PSR like Linux, not DR, because DR does not always reflect the pin state, while PSR does. This is especially useful to detect a short circuit on a GPIO pin configured as output, or to read the level of a pin controlled by a non-GPIO IOMUX function. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
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