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path: root/drivers/gpio
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2021-03-03gpio: sandbox: Use a separate flag for the valueSimon Glass
At present with the sandbox GPIO driver it is not possible to change the value of GPIOD_IS_OUT_ACTIVE unless the GPIO is an output. This makes it hard to test changing the flags since we need to be aware of the internal workings of the driver. The feature is designed to aid testing. Split this feature out into a separate sandbox-specific flag, so that the flags can change unimpeded. This will make it easier to allow updating the flags in a future patch. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-03gpio: sandbox: Rename GPIO dir_flags to flagsSimon Glass
Adjust the terminology in this driver to reflect that fact that all flags are handled, not just direction flags. Create a new access function to get the full GPIO state, not just the direction flags. Drop the static invalid_dir_flags since we can rely on a segfault if something is wrong. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-03gpio: Rename dm_gpio_get_dir_flags() to dm_gpio_get_flags()Simon Glass
This function can be used to get any flags, not just direction flags. Rename it to avoid confusion. 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 get_dir_flags() method to get_flags()Simon Glass
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 Glass
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>
2021-03-03gpio: Disable functions not used with of-platdataSimon Glass
These functions use devicetree and cannot work with of-platdata, which has no runtime devicetree. If they are used, the current linker error is confusing, since it talks about missing functions in the bowels of driver model. Avoid compiling these functions at all with of-platdata, so that a straightforward link error points to the problem. Series-changes; 3 - Fix 'wprl' typo Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-02-15Merge branch '2021-02-02-drop-asm_global_data-when-unused'Tom Rini
- Merge the patch to take <asm/global_data.h> out of <common.h>
2021-02-08gpio: mpc8xxx_gpio: Fix for litte endianBiwen Li
Update gpio driver to use same logic for big-endian and little-endian Signed-off-by: Biwen Li <biwen.li@nxp.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-27gpio: Add support for DM GPIO for KirkwoodHarm Berntsen
The Armada driver also works on Nedap's custom Kirkwood board with a Marvell 88F6180 CPU. The original commit of that driver, commit 704d9a645e17 ("gpio: Add DM GPIO driver for Marvell MVEBU"), also mentions that this driver would be suitable for Kirkwood. This does not completely replace the Kirkwood specific driver as there are still boards depending on that driver. Signed-off-by: Harm Berntsen <harm.berntsen@nedap.com> CC: Stefan Roese <sr@denx.de>, Reviewed-by: Stefan Roese <sr@denx.de>
2021-01-25Merge https://gitlab.denx.de/u-boot/custodians/u-boot-sunxiTom Rini
- New Allwinner H616 SoC support (sans Ethernet & USB) - H6 DT update - Tanix TX6 TV box support - OrangePi 3 support - OrangePi Zero2 (H616) support
2021-01-25sunxi: gpio: introduce compatible for H616Jernej Skrabec
H616 pinctrl is no different configuration wise than others, so just add compatible for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-01-24gpio: add GPIO controller driver for MediaTek MT7620 SoCWeijie Gao
This patch adds GPIO controller driver for MediaTek MT7620 SoC Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2021-01-13gpio: stm32-gpio: migrate trace to dev and log macroPatrick Delaunay
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>
2021-01-12gpio: tca642x: fix input subcommand for gpio banks > 0Tomas Novotny
The value of input pin for bank > 0 is always 0 for input subcommand. The reason is that gpio_bank variable is computed only for invert and output subcommands (it depends on number of arguments). The default value of zero causes to shift the mask away for banks > 0. Please note that info subcommand works as expected, because the input pin values are accessed differently. Fixes: 61c1775f16ed ("gpio: tca642x: Add the tca642x gpio expander driver") Cc: Dan Murphy <dmurphy@ti.com> Signed-off-by: Tomas Novotny <tomas@novotny.cz>
2021-01-05dm: Rename U_BOOT_DRIVER_ALIAS to DM_DRIVER_ALIASSimon Glass
We use the U_BOOT_ prefix (i.e. U_BOOT_DRIVER) to declare a driver but in every other case we just use DM_. Update the alias macros to use the DM_ prefix. We could perhaps rename U_BOOT_DRIVER() to DM_DRIVER(), but this macro is widely used and there is at least some benefit to indicating it us a U-Boot driver, particularly for code ported from Linux. So for now, let's keep that name. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: Rename DM_GET_DRIVER() to DM_DRIVER_GET()Simon Glass
In the spirit of using the same base name for all of these related macros, rename this to have the operation at the end. This is not widely used so the impact is fairly small. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: Rename U_BOOT_DEVICE() to U_BOOT_DRVINFO()Simon Glass
The current macro is a misnomer since it does not declare a device directly. Instead, it declares driver_info record which U-Boot uses at runtime to create a device. The distinction seems somewhat minor most of the time, but is becomes quite confusing when we actually want to declare a device, with of-platdata. We are left trying to distinguish between a device which isn't actually device, and a device that is (perhaps an 'instance'?) It seems better to rename this macro to describe what it actually is. The macros is not widely used, since boards should use devicetree to declare devices. Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is declaring a new driver_info record, not a device. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: core: Access device ofnode through functionsSimon Glass
At present ofnode is present in the device even if it is never used. With of-platdata this field is not used, so can be removed. In preparation for this, change the access to go through inline functions. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: core: Use dev_has_ofnode() instead of dev_of_valid()Simon Glass
We have two functions which do the same thing. Standardise on dev_has_ofnode() since there is no such thing as an 'invalid' ofnode in normal operation: it is either null or missing. Also move the functions into one place. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-01-05x86: apl: Reduce size for TPLSimon Glass
Update various drivers to use of_match_ptr() and to avoid including debug strings in TPL. Omit the WiFi driver entirely, since it is not used in TPL. This reduces the TPL binary size by about 608 bytes. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: Use access methods for dev/uclass private dataSimon Glass
Most drivers use these access methods but a few do not. Update them. In some cases the access is not permitted, so mark those with a FIXME tag for the maintainer to check. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Pratyush Yadav <p.yadav@ti.com>
2020-12-18gpio: Update for new sequence numbersSimon Glass
Use the dev_seq() sequence number in all cases. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-18dm: Avoid accessing seq directlySimon Glass
At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass
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>
2020-12-13dm: Drop uses of dev_set_of_offset()Simon Glass
The need for this can be avoided by passing the correct node to the device_bind() function. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: Remove uses of device_bind_offset()Simon Glass
This function is not needed since the standard device_bind() can be used instead. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Rename device_bind_ofnode() to device_bind()Simon Glass
This is the standard function to use when binding devices. Drop the '_ofnode' suffix to make this clear. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Rename device_bind() to device_bind_offset()Simon Glass
This function is not necessary anymore, since device_bind_ofnode() does the same thing and works with both flattree and livetree. Rename it to indicate that it is special. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01gpio: Convert to use APIs which support live DTPatrick Delaunay
Use ofnode_ or dev_ APIs instead of fdt_ and fdtdec_ APIs so that the driver can support live DT. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-11-25gpio: stm32: correct the bias managementPatrick Delaunay
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>
2020-11-17sunxi: gpio: introduce compatible string for V3 GPIOIcenowy Zheng
A new compatible string is introduced for V3 GPIO, because it has more pins available than V3s. Add the compatible string to the GPIO driver. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-11-05x86: Fix up driver names to avoid dtoc warningsSimon Glass
At present there are a lot of dtoc warnings reported when building chromebook_coral, of the form: WARNING: the driver intel_apl_lpc was not found in the driver list Correct these by using driver names that matches their compatible string. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-23gpio: mpc8xxx: support fsl-layerscape platformhui.song
Make the MPC8XXX gpio driver to support the fsl-layerscape. Signed-off-by: hui.song <hui.song_1@nxp.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-10-21arm: stm32: cleanup arch gpio.hPatrick Delaunay
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>
2020-10-14drivers: gpio: keep output value for input on sandboxHeinrich Schuchardt
For testing purposes keep the output value when switching to input. This allows us to manipulate the input value via the gpio command. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
2020-10-08gpio: dw: Return output value when direction is outSean Anderson
dm_gpio_ops.get_value can be called when the gpio is either input or output. The current dw code always returns the input value, which is invalid if the direction is set to out. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-10-08gpio: dw: Add a trailing underscore to generated nameSean Anderson
Previously, if there was no bank-name property, it was easy to have confusing gpio names like "gpio1@08", instead of "gpio1@0_8". This patch follows the example of the sifive gpio driver. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-08gpio: dw: Fix warnings about casting int to pointerSean Anderson
Change the type of gpio_dwabp_platdata.base from fdt_addr_t to a void pointer, since we pass it to readl. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-05Merge branch 'next'Tom Rini
Bring in the assorted changes that have been staged in the 'next' branch prior to release. Signed-off-by: Tom Rini <trini@konsulko.com>
2020-10-02gpio: stm32: check result of ofnode_phandle_argsPatrick Delaunay
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 Delaunay
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>
2020-09-30drivers: gpio: Add a managed API to get a GPIO from the device-treeJean-Jacques Hiblot
Add managed functions to get a gpio from the devce-tree, based on a property name (minus the '-gpios' suffix) and optionally an index. When the device is unbound, the GPIO is automatically released and the data structure is freed. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-22gpio/mpc83xx_spisel_boot.c: include log.hRasmus Villemoes
Fix build failure, it used to get this implicitly through common.h until f7ae49fc4f (common: Drop log.h from common header). Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-08-22treewide: convert devfdt_get_addr_ptr() to dev_read_addr_ptr()Masahiro Yamada
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To help this tedious work, this commit converts devfdt_get_addr_ptr() to dev_read_addr_ptr() by coccinelle. I also removed redundant casts because dev_read_addr_ptr() returns an opaque pointer. To generate this commit, I ran the following semantic patch excluding include/dm/. <smpl> @@ type T; expression dev; @@ -(T *)devfdt_get_addr_ptr(dev) +dev_read_addr_ptr(dev) @@ expression dev; @@ -devfdt_get_addr_ptr(dev) +dev_read_addr_ptr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22gpio: at91: use dev_read_addr() to get base addressMasahiro Yamada
It is strange to use devfdt_get_addr_ptr(), then cast the pointer back to uint32 because you could use devfdt_get_addr() without casting. Convert it to dev_read_addr(), which is capable to CONFIG_OF_LIVE. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-05 18:23:06 +0000