u-boot.git/drivers/gpio, branch v2021.10

pci: Drop DM_PCI

2021-09-13T22:23:13Z

This option has not effect now. Drop it, using PCI instead where needed. Signed-off-by: Simon Glass

gpio: mcp230xx: Introduce new driver

2021-08-22T08:53:14Z

Introduce driver for I2C based MCP230xx GPIO chips, which are quite common and already well supported by the Linux kernel. Reviewed-by: Simon Glass Signed-off-by: Sebastian Reichel Reviewed-by: Simon Glass

global: Convert simple_strtoul() with decimal to dectoul()

2021-08-02T17:32:14Z

It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass

global: Convert simple_strtoul() with hex to hextoul()

2021-08-02T17:32:14Z

It is a pain to have to specify the value 16 in each call. Add a new hextoul() function and update the code to use it. Add a proper comment to simple_strtoul() while we are here. Signed-off-by: Simon Glass

Rename GPIO_SUPPORT to GPIO

2021-07-28T18:29:36Z

Rename these options so that CONFIG_IS_ENABLED can be used with them. Signed-off-by: Simon Glass

i2c: pcf8575: Add support for 8 bit I2C IO expanders (like pca8574)

2021-07-23T11:13:25Z

This patch add support for using NXP's pca8574 I2C IO expander, which has only 8 IO lines. After this change the .data member's information from struct udevice_id are used to either sent one or two bytes. Moreover, the '_le16' suffix from pcf8575_i2c_{write|read}_le16() functions have been removed as now we also sent 8 bit data. Signed-off-by: Lukasz Majewski Reviewed-by: Heiko Schocher

i2c: pcf8575: Remove not used members of pcf8575_chip structure

2021-07-23T11:13:25Z

Those members are not used anymore as ones from gpio_dev_priv structure (when DM_GPIO support is enabled) are used instead. Signed-off-by: Lukasz Majewski Reviewed-by: Heiko Schocher

gpio: Add driver for Nomadik GPIO

2021-07-14T20:47:56Z

Nomadik GPIO is a fairly simple GPIO module used in the ST-Ericsson Ux500 SoCs (and some older Nomadik SoCs). It uses registers where each GPIO is represented as a single bit, plus "set" and "clear" registers that allow updating the state without having to read the existing state. The driver implements support for it for use together with DM_GPIO and the existing ste-dbx5x0.dtsi device tree. Cc: Linus Walleij Signed-off-by: Stephan Gerhold Reviewed-by: Linus Walleij

gpio: Drop long unused DB8500 GPIO driver

2021-07-14T20:47:55Z

The original U-Boot port for the ST-Ericsson U8500 SoC was dropped in commit 68282f55b846 ("arm: Remove unused ST-Ericsson u8500 arch"). Most of the drivers related to the old port were removed, but the db8500_gpio.c driver was forgotten for some reason. There is no way to select it and it does not compile anymore because of missing headers, so let's just remove it. The new port for U8500 introduced in commit 689088f9dae8 ("arm: Add support for ST-Ericsson U8500 SoC") fully embraces the new Driver Model and device trees where possible, so this is preparation to add a new, simplified GPIO driver based on DM_GPIO. Signed-off-by: Stephan Gerhold Reviewed-by: Linus Walleij

arm: Remove spear600 boards and the rest of SPEAr support

2021-07-08T02:22:42Z

These boards have not been converted to CONFIG_DM_USB by the deadline and is also missing conversion to CONFIG_DM. Remove them. As this is the last of the SPEAr platforms, so remove the rest of the remaining support as well. Cc: Vipin Kumar Signed-off-by: Tom Rini