summaryrefslogtreecommitdiff
path: root/drivers/gpio/stm32_gpio.c
AgeCommit message (Collapse)AuthorFilesLines
2021-03-03dm: gpio: Add a way to update flagsSimon Glass1-1/+2
It is convenient to be able to adjust some of the flags for a GPIO while leaving others alone. Add a function for this. Update dm_gpio_set_dir_flags() to make use of this. Also update dm_gpio_set_value() to use this also, since this allows the open-drain / open-source features to be implemented directly in the driver, rather than using the uclass workaround. Update the sandbox tests accordingly. This involves a lot of changes to dm_test_gpio_opendrain_opensource() since we no-longer have the direciion being reported differently depending on the open drain/open source flags. Also update the STM32 drivers to let the uclass handle the active low/high logic. Drop the GPIOD_FLAGS_OUTPUT() macro which is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Kory Maincent <kory.maincent@bootlin.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-03dm: gpio: Rename get_dir_flags() method to get_flags()Simon Glass1-4/+4
It is more useful to be able to read all the flags, not just the direction ones. In fact this is what the STM32 driver does. Update the method name to reflect this. Tweak the docs a little and use 'flagsp' as the return argument, as is common in driver model, to indicate it returns a value. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
2021-03-03dm: gpio: Rename set_dir_flags() method to update_flags()Simon Glass1-3/+3
The current method is a misnomer since it is also used (e.g. by stm32) to update pull settings and open source/open drain. Rename it and expand the documentation to cover a few more details. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-01-13gpio: stm32-gpio: migrate trace to dev and log macroPatrick Delaunay1-1/+3
Change debug to dev_dbg macro and define LOG_CATEGORY. Remove dev->name as it is already displayed by dev macro. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass1-1/+1
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-11-25gpio: stm32: correct the bias managementPatrick Delaunay1-14/+14
Use the bias configuration for all the GPIO configurations and not only for input GPIO, as indicated in Reference manual (Table 81. Port bit configuration table). Fixes: 43efbb6a3ebf0223f9eab8d45916f602d876319f ("gpio: stm32: add ops get_dir_flags") Fixes: f13ff88b61c32ac8f0e9068c41328b265ef619eb ("gpio: stm32: add ops set_dir_flags") Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-10-21arm: stm32: cleanup arch gpio.hPatrick Delaunay1-0/+2
Cosmetic update of gpio.h: - remove enumerate: stm32_gpio_port, stm32_gpio_pin because STM32_GPIO_XXX values are unused - move STM32_GPIOS_PER_BANK in stm32_gpio.c as its value is IP dependent and not arch dependent No functional change as number of banks and number of gpio by banks is managed by device tree since since DM migration and commit 8f651ca60ba1 ("pinctrl: stm32: Add get_pins_count() ops"). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-10-02gpio: stm32: check result of ofnode_phandle_argsPatrick Delaunay1-0/+5
Add test on the size of ofnode_phandle_args result to avoid access to uninitialized elements in args[] field. This patch avoids the issue when gpio-ranges cell size is not 3 as expected, for example: gpio-ranges = <&pinctrl 0>; instead of gpio-ranges = <&pinctrl 0 112 16>; Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-10-02gpio: stm32: cosmetic: cleanup gpio_stm32_probePatrick Delaunay1-6/+4
Move the variables definition at the beggining of the function gpio_stm32_probe(). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-07gpio: stm32: add ops get_dir_flagsPatrick Delaunay1-0/+59
Add ops get_dir_flags() to read dir flags from GPIO registers. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-07gpio: stm32: add ops set_dir_flagsPatrick Delaunay1-14/+76
Manage flags for GPIO configuration: - open_drain, open_source, push_pull - pull_up, pull_down Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-05-19common: Drop linux/bitops.h from common headerSimon Glass1-0/+1
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop log.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-14gpio: stm32: support gpio ops in SPLPatrick Delaunay1-6/+1
The GPIO support is needed in SPL to managed the SD cart detect used on stm32mp157c-ev1 and dk2 board. So this patch activates the associated code in stm32_gpio.c. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-02-06dm: core: Create a new header file for 'compat' featuresSimon Glass1-0/+1
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-12gpio: stm32: Remove .ofmatch callbackPatrice Chotard1-6/+0
As compatible string "st,stm32-gpio" is no more used, .ofmatch callback becomes useless, remove it. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12gpio: stm32: Rename stm32f7_gpio to stm32_gpioPatrice Chotard1-0/+228
As this driver is used on stm32f4/f7/h7 and stm32mp1 SoCs, rename it with a more generic name. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-01-10board: stm32f429-disco: switch to DM STM32 pinctrl and gpio driverPatrice Chotard1-182/+0
Use available DM stm32f7_gpio.c and pinctrl_stm32.c drivers instead of board GPIO initialization. Remove stm32_gpio.c which is no more used and migrate structs stm32_gpio_regs and stm32_gpio_priv into arch-stm32f4/gpio.h to not break compilation. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-08-13stm32f1: remove stm32f1 supportPatrice Chotard1-94/+0
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>
2016-09-24treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada1-1/+1
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-02-25stm32: add support for stm32f7 & stm32f746 discovery boardVikas Manocha1-3/+3
This patch adds support for stm32f7 family & stm32f746 board. Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-02-25gpio: stm32_gpio: move base addresses to the soc fileVikas Manocha1-18/+0
Base addresses for GPIOs could be different for different socs, this patch moves the base addresses from driver to the soc specific location. Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-02-25gpio: stm32_gpio: move clock config from driver to boardVikas Manocha1-5/+0
This patch removes the gpio clock enable from gpio driver & move it in the board code, making it possible to use the gpio driver with other socs. Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2015-12-06Change e-mail address of Kamil LulkoKamil Lulko1-1/+1
Signed-off-by: Kamil Lulko <kamil.lulko@gmail.com>
2015-05-28gpio: stm32: add stm32f1 supportMatt Porter1-1/+109
Add support for the STM32F1 family to the STM32 gpio driver. Signed-off-by: Matt Porter <mporter@konsulko.com>
2015-05-09gpio: stm32_gpio: Use clrsetbits_le32() at appropriate placesAxel Lin1-13/+5
Use clrsetbits_le32() to replace clrbits_le32() + setbits_le32(). Signed-off-by: Axel Lin <axel.lin@ingics.com>
2015-04-22ARMv7M: Add STM32F4 supportrev13@wp.pl1-0/+199
Signed-off-by: Kamil Lulko <rev13@wp.pl> Reviewed-by: Tom Rini <trini@konsulko.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-18 22:55:13 +0300