From 453200af8a85ca023afb7f3518d85456b70ace11 Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Wed, 20 Apr 2022 21:19:26 +0200 Subject: 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 Tested-by: Horatiu Vultur Link: https://lore.kernel.org/r/20220420191926.3411830-3-michael@walle.cc Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-ocelot.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/pinctrl/pinctrl-ocelot.c') 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 #include #include +#include #include #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)) -- cgit v1.2.3-58-ga151