linux-toradex.git, branch archive/vf610-gpio-v4

Documentation: dts: add bindings for Vybrid GPIO/PORT module

2014-09-26T11:40:02+00:00

The Vybrid SoC device tree (vf610.dtsi) used this bindings since
its initial commit in May 2013. However, a proper gpiolib driver
was missing so far. With the addition of the gpiolib driver,
the bindings proved to be useful and complete, hence a good time
to add the documentation.

ARM: dts: vf610: use new GPIO support

2014-09-26T11:40:02+00:00

Use GPIO support by adding SD card detection configuration and
GPIO pinmux for Colibri's standard GPIO pins. Attach the GPIO
pins to the iomuxc node to get the GPIO pin settings applied.

gpio: vf610: add gpiolib/IRQ chip driver for Vybrid

2014-09-26T11:40:01+00:00

Add a gpiolib and IRQ chip driver for Vybrid ARM SoC using the
Vybrid's GPIO and PORT module. The driver is instanced once per
each GPIO/PORT module pair and handles 32 GPIO's.

pinctrl: imx: add gpio pinmux support for vf610

2014-09-26T11:39:56+00:00

Add pinmux support for GPIO for Vybrid (vf610) IOMUX controller.
This is needed since direction configuration is not part of the
GPIO module in Vybrid.

pinctrl: sh-pfc: sh73a0: Remove unnecessary SoC data allocation

2014-09-23T15:11:22+00:00

The SoC data structure allocated at init time only holds a regulator
pointer that is only used in the init function. Replace it with a local
variable and get rid of the SoC data structure allocation altogether.

Signed-off-by: Laurent Pinchart 
Acked-by: Geert Uytterhoeven 
Signed-off-by: Linus Walleij

pinctrl: berlin: fix the dt_free_map function

2014-09-23T15:01:47+00:00

The berlin_pinctrl_dt_free_map function tries to free memory
allocated and handled by the of subsystem. This is wrong and
already handled by pinctrl_dt_free_maps() which calls
of_node_put().

This patch fixes the Berlin pinctrl way of freeing its maps,
avoiding a kernel BUG(), by using the common
pinctrl_utils_dt_free_map function instead.

Signed-off-by: Antoine Tenart 
Acked-by: Sebastian Hesselbarth 
Signed-off-by: Linus Walleij

pinctrl: at91: disable PD or PU before enabling PU or PD

2014-09-23T14:59:55+00:00

Disable Pull-Down or Pull-Up property before enabling Pull-Up or
Pull-Down, because the pin's Pull-Up and Pull-Down property is
mutually exclusive.

Signed-off-by: Wenyou Yang 
Acked-by: Nicolas Ferre 
Signed-off-by: Linus Walleij

pinctrl: st: remove gpiochip in failure cases

2014-09-23T14:53:18+00:00

This patch releases gpiochip related resources by calling
gpiochip_remove when gpiochip_irqchip_add fails.

Cc: Maxime Coquelin 
Cc: Patrice Chotard 
Cc: Bjorn Andersson 
Acked-by: Srinivas Kandagatla 
Signed-off-by: Pramod Gurav 
Signed-off-by: Linus Walleij

pinctrl: at91: Fix error handling while doing gpiochio_irqchip_add

2014-09-23T14:46:47+00:00

This patch removes a call to panic function when gpiochio_irqchip_add
fails and just returns the error to the calling function.
Same return value is used to handle the error case and adds a lable
to release resources on error.
The error message has been improved to indicate failure to add irqchip
to gpiochip.

This also changes first argument to function at91_gpio_of_irq_setup from
struct device_node to struct platform_device. Because The device_node
argument was anyway not being used. Passed pdev so that on failure dev_err
can use &pdev->dev and log can be associated with proper device.

CC: Jean-Christophe Plagniol-Villard 
CC: Linus Walleij 
Signed-off-by: Pramod Gurav 
Signed-off-by: Linus Walleij

pinctrl: at91: Fix failure path in at91_gpio_probe path

2014-09-23T14:45:22+00:00

This fixes the whole error handling in probe function by capturing and
returning error values on kernel function like clk_prepare,
clk_enable, gpiochip_add etc.

CC: Jean-Christophe Plagniol-Villard 
CC: Linus Walleij 
Signed-off-by: Pramod Gurav 
Signed-off-by: Linus Walleij