Commit 453200af authored by Michael Walle's avatar Michael Walle Committed by Linus Walleij
Browse files

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: default avatarMichael Walle <michael@walle.cc>
Tested-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220420191926.3411830-3-michael@walle.cc


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 9c1082fd

drivers/pinctrl/pinctrl-ocelot.c

+8 −0
Original line number Diff line number Diff line
@@ -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))