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@xxxxxxxx>
---
drivers/pinctrl/pinctrl-ocelot.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index 1bdced67464b..b25eb04e4e1d 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 +1929,13 @@ 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)) {
+ dev_err(dev, "Failed to get reset\n");
+ return PTR_ERR(reset);
+ }
+ reset_control_reset(reset);
+
base = devm_ioremap_resource(dev,
platform_get_resource(pdev, IORESOURCE_MEM, 0));
if (IS_ERR(base))
--
2.30.2
