diff options
| author | Michael Walle <michael@walle.cc> | 2022-04-20 21:19:26 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-04-29 00:38:47 +0200 |
| commit | 453200af8a85ca023afb7f3518d85456b70ace11 (patch) | |
| tree | dda7401a0b75a438383bdf7e77a307ed4bf80f5c /drivers | |
| parent | dt-bindings: pinctrl: ocelot: add reset property (diff) | |
| download | linux-453200af8a85ca023afb7f3518d85456b70ace11.tar.xz linux-453200af8a85ca023afb7f3518d85456b70ace11.zip | |
pinctrl: ocelot: add optional shared reset
On the LAN9668 there is a shared reset line which affects GPIO, SGPIO
and the switch core. Add support for this shared reset line.
Signed-off-by: Michael Walle <michael@walle.cc>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220420191926.3411830-3-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/pinctrl-ocelot.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c index 1bdced67464b..843704fa8625 100644 --- a/drivers/pinctrl/pinctrl-ocelot.c +++ b/drivers/pinctrl/pinctrl-ocelot.c @@ -19,6 +19,7 @@ #include <linux/pinctrl/pinconf-generic.h> #include <linux/platform_device.h> #include <linux/regmap.h> +#include <linux/reset.h> #include <linux/slab.h> #include "core.h" @@ -1912,6 +1913,7 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct ocelot_pinctrl *info; + struct reset_control *reset; struct regmap *pincfg; void __iomem *base; int ret; @@ -1927,6 +1929,12 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) info->desc = (struct pinctrl_desc *)device_get_match_data(dev); + reset = devm_reset_control_get_optional_shared(dev, "switch"); + if (IS_ERR(reset)) + return dev_err_probe(dev, PTR_ERR(reset), + "Failed to get reset\n"); + reset_control_reset(reset); + base = devm_ioremap_resource(dev, platform_get_resource(pdev, IORESOURCE_MEM, 0)); if (IS_ERR(base)) |