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path: root/drivers/gpio
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* dm: Use dev_get_addr() where possibleSimon Glass2015-08-31-6/+3
| | | | | | | | | | This is a convenient way for a driver to get the hardware address of a device, when regmap or syscon are not being used. Change existing callers to use it as an example to others. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org>
* x86: gpio: Tidy up gpio_ich6_get_base() and callersSimon Glass2015-08-26-3/+3
| | | | | | | | | | | | | This function can return an error. Correct the detection of this error so that it works even with large 32-bit addresses. The return value is set up for returning an I/O address but the function is also used to return a memory-mapped address. Adjust the return code to make this work. Also add a bit more debugging. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: gpio: Correct calls to _ich6_gpio_set_direction()Simon Glass2015-08-26-2/+2
| | | | | | | These calls seem to be incorrect. The function expects an I/O address but the existing callers pass the value at an I/O address. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
* gpio: Add DW APB GPIO driverMarek Vasut2015-08-23-0/+175
| | | | | | | | Add driver for the DesignWare APB GPIO IP block. This driver is DM capable and probes from DT. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org>
* of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada2015-08-18-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* sunxi: gpio: Add support for the gpio banks which are part of the R-io clusterHans de Goede2015-08-14-4/+18
| | | | | | | | | | | | | sun6i and later have a couple of io-blocks which are shared between the main CPU core and the "R" cpu which is small embedded cpu which can be active while the main system is suspended. These gpio banks sit at a different mmio address then the normal banks, and have a separate devicetree node and compatible, this adds support for these banks to the sunxi-gpio code when built with device-model support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* gpio: omap: Drop 'method' parameterTom Rini2015-08-12-48/+59
| | | | | | | | | | The "method" parameter was part of the original port of the driver from the kernel. At some point this may have been added to allow for future differentiation (as omap1 and omap2 have different GPIO IP blocks, so this wasn't an unreasonable thing to do). At this point however it's just extra overhead, so drop. Signed-off-by: Tom Rini <trini@konsulko.com>
* dm: gpio: hi6220: Add a hi6220 GPIO driver model driver.Peter Griffin2015-08-12-0/+97
| | | | | | | This patch adds support for the GPIO perif found on hi6220 SoC. Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
* drivers: hierarchize drivers Kconfig menuMasahiro Yamada2015-08-12-0/+8
| | | | | | | | | | | The menuconfig for drivers are getting more and more cluttered and unreadable because too many entries are displayed in a single flat menu. Use hierarchic menu for each category. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Update to apply again in a few places, drop USB hunk] Signed-off-by: Tom Rini <trini@konsulko.com>
* dm: gpio: Check a GPIO is valid before using itSimon Glass2015-08-05-1/+5
| | | | | | | | | Since a gpio_desc is allowed to be invalid we should return an error indicating that the operation cannot be completed. This can happen if the GPIO is optional - e.g. some devices may have a reset line and some may not. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Add some missing global_data declarations in files that use gdSimon Glass2015-08-05-0/+2
| | | | | | | Some files use global_data but don't declare it. Fix this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2015-08-02-0/+4
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| * mxc: gpio add i.MX6UL supportPeng Fan2015-08-02-0/+4
| | | | | | | | | | | | i.MX6UL does not have GPIO6/7, so do not include them for i.MX6UL. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
* | dm: gpio: Add dm_gpio_request() to manually request a GPIOSimon Glass2015-07-21-1/+1
| | | | | | | | | | | | | | This function can be used for testing to manually request a GPIO for use, without resorting to the legacy GPIO API. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Add dm_gpio_lookup_name() to look up a GPIO nameSimon Glass2015-07-21-8/+26
| | | | | | | | | | | | | | Provide a driver-model function to look up a GPIO name. Make the standard function use it. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Allow GPIO uclass to be used in SPLSimon Glass2015-07-21-4/+0
|/ | | | | | | Now that we support driver model in SPL, allow GPIO drivers to be used there also. Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge branch 'u-boot/master' into 'u-boot-arm/master'Albert ARIBAUD2015-07-07-28/+408
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| * Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2015-06-08-0/+178
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| | * dm: gpio: vf610: Add GPIO driver supportBhuvanchandra DV2015-06-08-0/+177
| | | | | | | | | | | | | | | | | | Add GPIO driver support to Freescale VF610 Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
| | * dm: gpio: uclass: Add flag to control sequence numberingBhuvanchandra DV2015-06-08-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like SPI and I2C few GPIO controllers also have multiple chip instances. This patch adds the flag 'DM_UC_FLAG_SEQ_ALIAS' in gpio_uclass driver to control device sequence numbering. By defalut the dev->r_seq for gpio_uclass will alwalys returns -1, which leads the gpio driver probe failure when using the driver with device trees. Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
| * | Merge git://git.denx.de/u-boot-sunxiTom Rini2015-06-06-0/+1
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| | * | sunxi: gpio: Add "allwinner,sun8i-a33-pinctrl"Hans de Goede2015-06-04-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add "allwinner,sun8i-a33-pinctrl", this is used by the latest upstream linux sunxi dts files. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
| * | | x86: gpio: add pinctrl support from the device treeGabriel Huau2015-06-04-28/+229
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | Every pin can be configured now from the device tree. A dt-bindings has been added to describe the different property available. Change-Id: I1668886062655f83700d0e7bbbe3ad09b19ee975 Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr> Acked-by: Simon Glass <sjg@chromium.org>
* | | gpio: lpc32xx: Use priv_data instead of platdataAxel Lin2015-07-07-20/+19
|/ / | | | | | | | | | | | | | | | | The LPC32XX GPIO driver platdata currently contains GPIO state information, which should go into priv_data. Thus rename lpc32xx_gpio_platdata to lpc32xx_gpio_priv and convert to use dev_get_priv() instead. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
* | gpio: stm32: add stm32f1 supportMatt Porter2015-05-28-1/+109
|/ | | | | | Add support for the STM32F1 family to the STM32 gpio driver. Signed-off-by: Matt Porter <mporter@konsulko.com>
* Merge git://git.denx.de/u-boot-samsungTom Rini2015-05-18-33/+42
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| * gpio: s3c: Fix the GPIO driverMarek Vasut2015-05-06-33/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIO driver didn't correctly compute the bank offset from the GPIO number and caused random writes into the GPIO block address space. Fix the driver so it actually does the writes correctly. While at it, make use of the clrsetbits_le32() mechanisms. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | dm: gpio: Add error handling and a function to claim vector GPIOsSimon Glass2015-05-13-3/+35
| | | | | | | | | | | | | | | | | | gpio_get_values_as_int() should return an error if something goes wrong. Also provide gpio_claim_vector(), a function to request the GPIOs and set them to input mode. Otherwise callers have to do this themselves. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* | gpio: stm32_gpio: Use clrsetbits_le32() at appropriate placesAxel Lin2015-05-08-13/+5
|/ | | | | | Use clrsetbits_le32() to replace clrbits_le32() + setbits_le32(). Signed-off-by: Axel Lin <axel.lin@ingics.com>
* sunxi: axp: Remove non driver-model support from the axp gpio codeHans de Goede2015-05-04-41/+8
| | | | | | | | | | | | | | Now that all sunxi boards are using driver-model for gpio (*), we can remove the non driver-model support from the axp gpio code, and the glue to call into the axp gpio code from the sunxi_gpio non driver-model code. *) For the regular u-boot build, SPL still uses non driver-model gpio for now, but the SPL never uses axp gpios support and we were already not building axp-gpio support for the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Add driver-model support to the axp_gpio codeHans de Goede2015-05-04-1/+53
| | | | | | | | | | Add driver-model support to the axp_gpio code, note that this needs a small tweak to the driver-model version of sunxi_name_to_gpio to deal with the vbus detect and enable pins which are not standard numbered gpios. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Move axp gpio code to a separate axpi-gpio driverHans de Goede2015-05-04-11/+154
| | | | | | | | | | | | | | | | | | | | Move the axp-gpio code out of the drivers/power/axp*.c code, and into a new separate axpi-gpio driver. This change drops supports for the gpio3 pin on the axp209, as that requires special handling, and no boards are using it. Besides cleaning things up by moving the code to a separate driver, as a bonus this change also adds support for the (non vusb) gpio pins on the axp221 and the gpio pins on the axp152. The new axp-gpio driver gets its own Kconfig option, and is only enabled on boards which need it. Besides that it only gets enabled in the regular u-boot build and not for the SPL as we never need it in the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Change axp_gpio_foo prototypes to match gpio uclass opsHans de Goede2015-05-04-4/+4
| | | | | | | | | | | | | Change the axp_gpio_foo function prototypes to match the gpio uclass op prototypes, this is a preparation patch for moving the axp gpio code to a separate driver-model gpio driver. Note that the ugly calls with a NULL udev pointer in drivers/gpio/sunxi_gpio.c this adds are removed in a later patch. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: gpio: Build sunxi_name_to_gpio_bank for driver-model code tooHans de Goede2015-05-04-14/+14
| | | | | | | | | | When doing a driver-model enabled build we still need sunxi_name_to_gpio_bank (for now) for the mmc pinmux code in board/sunxi/board.c, so build it for driver-model enabled builds too. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: gpio: Add compatible strings for all supported SoCsHans de Goede2015-05-04-0/+7
| | | | | | | | | We want to use driver-model/fdt with other model SoCs too, so add compatible strings for the other SoCs to the dm sunxi gpio code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: gpio: Add temporary implementation of name_to_gpio()Simon Glass2015-05-04-0/+11
| | | | | | | | | | | | Until sunxi moves to device tree (e.g. for USB) we need to convert named GPIOs to numbers. Add a function to do this. This fixes the USB / EHCI support not working on the LinkSprite pcDuino3 (which uses devicemodel). Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: gpio: Rename GPIOs to include a 'P' prefixSimon Glass2015-05-04-3/+4
| | | | | | | | | By convention, sunxi GPIOs are named PA1, PA2 instead of A1, A2. Change the driver model GPIO driver for sunxi to use these names. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* gpio: add Xilinx Zynq PS GPIO driverAndrea Scian2015-04-29-0/+221
| | | | | | | | | Most of the code is taken (and adapted) from Linux kernel driver. Just add CONFIG_ZYNQ_GPIO to you config to enable it Signed-off-by: Andrea Scian <andrea.scian@dave.eu> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* mvgpio: remove CONFIG_SHEEVA_88SV331xV5 dependencyZhou Zhu2015-04-23-5/+1
| | | | | | | The Marvell GPIO driver can be used on Marvell platforms other than Sheeva, so remove the ifdef to enable it for others. Signed-off-by: Rob Herring <robh@kernel.org>
* gpio: mvmfp: support newer MFP bit definitionsXiang Wang2015-04-23-12/+2
| | | | | | | | | | | 1. The bits 11..10 for mfp driver strength is only valid for aspen and old xscale family, for newer Marvell chip, this range has been moved to 12..11. 2. add sleep bit support Signed-off-by: Xiang Wang <wangx@marvell.com> [robh: rebase to current mainline] Signed-off-by: Rob Herring <robh@kernel.org>
* ARMv7M: Add STM32F4 supportrev13@wp.pl2015-04-22-0/+200
| | | | | Signed-off-by: Kamil Lulko <rev13@wp.pl> Reviewed-by: Tom Rini <trini@konsulko.com>
* sandbox: Move GPIO CONFIGs to KconfigSimon Glass2015-04-18-0/+21
| | | | | | Move these over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: gpio: Add an implementation for gpio_get_number()Simon Glass2015-04-18-0/+12
| | | | | | | | This has a prototype but no implementation. It returns the global GPIO number given a gpio_desc. It is useful for debugging in some cases. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* dm: gpio: request list: return the count if requests max_count reachedPrzemyslaw Marczak2015-04-18-5/+1
| | | | | | | | | | | The function gpio_request_list_by_name_nodev() returned -ENOSPC error, when the loop count was greater than requested count. This was wrong, because function should return the requested gpio count, when meets the call request without errors. Now, the loop ends on requested max_count. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: core: Add dev_get_uclass_priv() to access uclass private dataSimon Glass2015-04-16-22/+22
| | | | | | | | Add a convenience function to access the private data that a uclass stores for each of its devices. Convert over most existing uses for consistency and to provide an example for others. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Add a x86_ prefix to the x86-specific PCI functionsSimon Glass2015-04-16-8/+8
| | | | | | | | | | | | These functions currently use a generic name, but they are for x86 only. This may introduce confusion and prevents U-Boot from using these names more widely. In fact it should be possible to remove these at some point and use generic functions, but for now, rename them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* sunxi: Complete mmc pin mux for each supported platform, configured with KconfigPaul Kocialkowski2015-04-15-0/+14
| | | | | | | | | | | | | Sunxi platforms have different possible mmc pin mux setups (except for mmc0), which are different across platforms. This lets users configure which is used through the CONFIG_MMC*_PINS Kconfig options. This is especially relevant when a second (in addition to mmc0) port is used and CONFIG_MMC_SUNXI_SLOT_EXTRA is enabled. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* power: axp221: Virtual VBUS detect and enable GPIOs to replace separate logicPaul Kocialkowski2015-04-15-0/+9
| | | | | | | | | This converts the VBUS detection and enable logic to GPIO instead of separate axp functions and checks that have to be used aside usual GPIO functions. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* lpc32xx: add GPIO supportAlbert ARIBAUD \(3ADEV\)2015-04-10-0/+301
| | | | | | This driver only supports Driver Model, not legacy model. Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
* dm: tegra: Enable driver model in SPL and adjust the GPIO driverSimon Glass2015-03-04-16/+15
| | | | | | | | | | | Use the full driver model GPIO and serial drivers in SPL now that these are supported. Since device tree is not available they will use platform data. Remove the special SPL GPIO function as it is no longer needed. This is all in one commit to maintain bisectability. Signed-off-by: Simon Glass <sjg@chromium.org>
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