luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

pinctrl: tegra: Only set the gpio range if needed

Browse Source 
If the gpio DT node has the gpio-ranges property, the range will be
added by the gpio core and doesn't need to be added by the pinctrl
driver.

By having the gpio-ranges property, we have an explicit dependency from
the gpio node to the pinctrl node and we can stop using the deprecated
pinctrl_add_gpio_range() function.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Tomeu Vizoso 2015-07-14 10:29:55 +02:00 committed by Thierry Reding
parent d770e558e2
commit 9462510ce3
1 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/pinctrl/pinctrl-tegra.c
View File

@ -624,6 +624,22 @@ static struct pinctrl_desc tegra_pinctrl_desc = {
.owner = THIS_MODULE,
};
static bool gpio_node_has_range(void)
{
struct device_node *np;
bool has_prop = false;
np = of_find_compatible_node(NULL, NULL, "nvidia,tegra30-gpio");
if (!np)
return has_prop;
has_prop = of_find_property(np, "gpio-ranges", NULL);
of_node_put(np);
return has_prop;
}
int tegra_pinctrl_probe(struct platform_device *pdev,
const struct tegra_pinctrl_soc_data *soc_data)
{
@ -708,7 +724,8 @@ int tegra_pinctrl_probe(struct platform_device *pdev,
return PTR_ERR(pmx->pctl);
}
pinctrl_add_gpio_range(pmx->pctl, &tegra_pinctrl_gpio_range);
if (!gpio_node_has_range())
pinctrl_add_gpio_range(pmx->pctl, &tegra_pinctrl_gpio_range);
platform_set_drvdata(pdev, pmx);