u-boot.git/drivers/gpio, branch v2019.01-rc2

gpio: stm32f7: Remove CONFIG_CLK flag.

2018-12-07T13:13:48Z

As all STM32 SoCs supports CONFIG_CLK flag, it becomes useless in this driver, remove it. Signed-off-by: Patrice Chotard

gpio: stm32f7: Move STM32_GPIOS_PER_BANK into gpio.h

2018-12-07T13:13:47Z

To allow access to this define by other driver, move it into gpio.h Signed-off-by: Patrice Chotard

gpio: stm32f7: Add gpio bank holes management

2018-12-07T13:13:47Z

In some STM32 SoC packages, GPIO bank has not always 16 gpios. Several cases can occur, gpio hole can be located at the beginning, middle or end of the gpio bank or a combination of these 3 configurations. For that, gpio bindings offer the gpio-ranges DT property which described the gpio bank mapping. Signed-off-by: Patrice Chotard

gpio: dwapb_gpio: fix binding without bank-name property

2018-11-29T11:45:15Z

As a preparation for merging the socfpga gen5 devicetree files from Linux, this patch makes the dwapb gpio driver work correctly without the 'bank-name' property on the gpio-controller nodes. This property is not present in the Linux drivers and thus is not present in the Linux devicetrees. It is only used to access pins via bank name. This fallback is necessary since without it, the driver will return an error code which will lead to an error in U-Boot startup. The bank names will still be added to the default board device trees in follow-up patch, but other boards using this driver and not including the bank name should also work with the socfpga.dtsi without adding the bank-name property. Signed-off-by: Simon Goldschmidt

gpio: Add MT7621 GPIO support

2018-11-18T15:02:22Z

This patch adds GPIO support for the Mediatek MT7621 SoC, tested on MT7688 (Gardena smart-gateway). The driver is loosly based on the Linux kernel version. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck Reviewed-by: Daniel Schwierzeck [fixed checkpatch.pl warnings: Prefer 'unsigned int' to bare use of 'unsigned'] Signed-off-by: Daniel Schwierzeck

gpio: stm32f7: Add ops get_function

2018-11-16T21:51:56Z

This patch adds gpio get_function ops support. This function reports the state of a gpio. Signed-off-by: Christophe Kerello Reviewed-by: Simon Glass Signed-off-by: Patrice Chotard

gpio: pca953x: Clear the polarity invert register at init

2018-11-16T18:34:36Z

The pca953x_gpio driver uses default value of polarity inversion register. For some devices like PCA9557 and MAX7310, their polarity inversion register default value is 0xf0. So for high 4 ports, when reading their values, the values are inverted as the actual level. This patch clears the polarity inversion register to 0 at init, so that the port read and write values are aligned. Signed-off-by: Ye Li Acked-by: Fugang Duan Acked-by: Peng Fan Signed-off-by: Anatolij Gustschin

gpio: Remove DM_FLAG_PRE_RELOC flag in various drivers

2018-11-14T17:16:28Z

When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng Reviewed-by: Simon Glass Reviewed-by: Patrick Delaunay

gpio: pca953x_gpio: fix DT GPIO flags translation

2018-11-14T15:59:23Z

Commit fb01e07a95 accidentally broke initialisation of GPIO descriptor flags from device tree: currently the active low flag from gpio-specifier is always ignored. Fix it. Signed-off-by: Anatolij Gustschin Cc: Mario Six

Merge tag 'u-boot-imx-20181025' of git://git.denx.de/u-boot-imx

2018-10-25T14:16:21Z

Merged imx8 architecture, fix build for imx8 + warnings