u-boot.git/drivers/gpio, branch v2016.11-rc2

libfdt: Bring in upstream stringlist functions

2016-10-13T19:54:10Z

These have now landed upstream. The naming is different and in one case the function signature has changed. Update the code to match. This applies the following upstream commits by Thierry Reding : 604e61e fdt: Add functions to retrieve strings 8702bd1 fdt: Add a function to get the index of a string 2218387 fdt: Add a function to count strings Signed-off-by: Simon Glass

Revert "x86: broadwell: gpio: Remove the codes to set up pin control"

2016-10-11T03:55:33Z

This makes the assumption that setting up pinctrl in cpu_init_r() is safe. On samus we need GPIOs before relocation in order to support power control. This commit fixes the following message on boot: initcall sequence ffe5c6f4 failed at call ffe01d3d (err=-1) ### ERROR ### Please RESET the board ### In any case it seems better to leave init to driver model, so that it can pick up the GPIO driver when it needs it. Since pinctrl is a dependency of the GPIO driver, we may as well put the dependency there and avoid these problems. This reverts commit 9769e05bcf79939bad23a719982dd1f85a110f3c. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

treewide: replace #include with

2016-09-23T21:55:42Z

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap ) Replace all include directives for with . Signed-off-by: Masahiro Yamada [trini: Fixup include/clk.] Signed-off-by: Tom Rini

serial: bcm283x_mu: Detect disabled serial device

2016-09-06T17:18:19Z

On the raspberry pi, you can disable the serial port to gain dynamic frequency scaling which can get handy at times. However, in such a configuration the serial controller gets its rx queue filled up with zero bytes which then happily get transmitted on to whoever calls getc() today. This patch adds detection logic for that case by checking whether the RX pin is mapped to GPIO15 and disables the mini uart if it is not mapped properly. That way we can leave the driver enabled in the tree and can determine during runtime whether serial is usable or not, having a single binary that allows for uart and non-uart operation. Signed-off-by: Alexander Graf Acked-by: Stephen Warren Reviewed-by: Simon Glass

bcm2835_gpio: Implement GPIOF_FUNC

2016-09-06T17:18:18Z

So far we could only tell the gpio framework that a GPIO was mapped as input or output, not as alternative function. This patch adds support for determining whether a function is mapped as alternative. Signed-off-by: Alexander Graf Reviewed-by: Simon Glass Acked-by: Stephen Warren

gpio: atmel_pio4: Rework to support DM & DT

2016-08-15T20:58:03Z

Rework the driver to support driver model and device tree, and support to regard the pio4 pinctrl device as a child of atmel_pio4 device. Signed-off-by: Wenyou Yang Reviewed-by: Simon Glass

gpio: atmel_pio4: Move PIO4 definitions to head file

2016-08-15T20:58:03Z

In order to make these PIO4 definitions shared with AT91 PIO4 pinctrl driver, move them from the existing gpio driver to the head file, and rephrase them. Signed-off-by: Wenyou Yang Reviewed-by: Simon Glass

fdt: allow fdtdec_get_addr_size_*() to translate addresses

2016-08-12T15:20:27Z

Some code may want to read reg values from DT, but from nodes that aren't associated with DM devices, so using dev_get_addr_index() isn't appropriate. In this case, fdtdec_get_addr_size_*() are the functions to use. However, "translation" (via the chain of ranges properties in parent nodes) may still be desirable. Add a function parameter to request that, and implement it. Update all call sites to default to the original behaviour. Signed-off-by: Stephen Warren Reviewed-by: Simon Glass Squashed in build fix from Stephen: Signed-off-by: Simon Glass

gpio: Add driver for TI PCF8575 I2C GPIO expander

2016-08-08T17:32:53Z

TI's PCF8575 is a 16-bit I2C GPIO expander.The device features a 16-bit quasi-bidirectional I/O ports. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. The I/Os should be high before being used as inputs. Read the device documentation for more details[1]. This driver is based on pcf857x driver available in Linux v4.7 kernel. It supports basic reading and writing of gpio pins. [1] http://www.ti.com/lit/ds/symlink/pcf8575.pdf Signed-off-by: Vignesh R Reviewed-by: Tom Rini Reviewed-by: Simon Glass Reviewed-by: Mugunthan V N

sunxi: gpio: Add .xlate function for gpio phandle resolution

2016-07-31T19:45:12Z

sunxi uses a 2 cell phandle for gpio bindings. Also there are no seperate nodes for each pin bank. Add a custom .xlate function to map gpio phandles to the correct pin bank device. This fixes gpio_request_by_name usage. Fixes: 7aa974858422 ("dm: sunxi: Modify the GPIO driver to support driver model") Signed-off-by: Chen-Yu Tsai Signed-off-by: Hans de Goede