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Second Round of Renesas ARM based SoC GPIO R-Car updates for v3.11 

Documentation enhancement and code cleanup by Laurent Pinchart.
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Merge tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

From Simon Horman:

Second Round of Renesas ARM based SoC GPIO R-Car updates for v3.11

Documentation enhancement and code cleanup by Laurent Pinchart.

* tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2013-06-21 15:15:57 +02:00
parent d405534dcd e305062e94
commit e7692e2cfd
2 changed files with 7 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
View File

@ -16,18 +16,12 @@ Required Properties:
- gpio-controller: Marks the device node as a gpio controller.
- #gpio-cells: Should be 2. The first cell is the GPIO number and the second
cell is used to specify optional parameters as bit flags. Only the GPIO
active low flag (bit 0) is currently supported.
- gpio-ranges: Range of pins managed by the GPIO controller as a 4-cells
tuple using the following syntax.
cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
- gpio-ranges: Range of pins managed by the GPIO controller.
<[phandle of the pin controller node]
0
[index of the first pin]
[number of pins]>
Please refer to gpio.txt in this directory for details of the common GPIO
bindings used by client devices.
Please refer to gpio.txt in this directory for details of gpio-ranges property
and the common GPIO bindings used by client devices.
Example: R8A7779 (R-Car H1) GPIO controller nodes

8
drivers/gpio/gpio-rcar.c
View File

@ -279,16 +279,13 @@ static struct irq_domain_ops gpio_rcar_irq_domain_ops = {
static void gpio_rcar_parse_pdata(struct gpio_rcar_priv *p)
{
struct gpio_rcar_config *pdata = p->pdev->dev.platform_data;
#ifdef CONFIG_OF
struct device_node *np = p->pdev->dev.of_node;
struct of_phandle_args args;
int ret;
#endif
if (pdata)
if (pdata) {
p->config = *pdata;
#ifdef CONFIG_OF
else if (np) {
} else if (IS_ENABLED(CONFIG_OF) && np) {
ret = of_parse_phandle_with_args(np, "gpio-ranges",
"#gpio-range-cells", 0, &args);
p->config.number_of_pins = ret == 0 && args.args_count == 3
@ -296,7 +293,6 @@ static void gpio_rcar_parse_pdata(struct gpio_rcar_priv *p)
: RCAR_MAX_GPIO_PER_BANK;
p->config.gpio_base = -1;
}
#endif
if (p->config.number_of_pins == 0 ||
p->config.number_of_pins > RCAR_MAX_GPIO_PER_BANK) {