Commit 0b90315a authored by Horatiu Vultur's avatar Horatiu Vultur Committed by Linus Walleij
Browse files

pinctrl: microchip sgpio: use reset driver 



On lan966x platform when the switch gets reseted then also the sgpio
gets reseted. The fix for this is to extend also the sgpio driver to
call the reset driver which will be reseted only once by the first
driver that is probed.

Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: default avatarSteen Hegelund <steen.hegelund@microchip.com>
Reviewed-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20211018085754.1066056-3-horatiu.vultur@microchip.com


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 8a097ff4

drivers/pinctrl/pinctrl-microchip-sgpio.c

+7 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/pinctrl/pinmux.h>

#include <linux/platform_device.h>

#include <linux/property.h>

#include <linux/reset.h>



#include "core.h"

#include "pinconf.h"
@@ -803,6 +804,7 @@ static int microchip_sgpio_probe(struct platform_device *pdev) 
	int div_clock = 0, ret, port, i, nbanks;

	struct device *dev = &pdev->dev;

	struct fwnode_handle *fwnode;

	struct reset_control *reset;

	struct sgpio_priv *priv;

	struct clk *clk;

	u32 val;
@@ -813,6 +815,11 @@ static int microchip_sgpio_probe(struct platform_device *pdev) 


	priv->dev = dev;



	reset = devm_reset_control_get_optional_shared(&pdev->dev, "switch");

	if (IS_ERR(reset))

		return dev_err_probe(dev, PTR_ERR(reset), "Failed to get reset\n");

	reset_control_reset(reset);



	clk = devm_clk_get(dev, NULL);

	if (IS_ERR(clk))

		return dev_err_probe(dev, PTR_ERR(clk), "Failed to get clock\n");