This it (at least) necessary for i.MX7s or otherwise barebox will hang
when trying to access the registers of WDOG2/3/4.
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
drivers/watchdog/imxwd.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/watchdog/imxwd.c b/drivers/watchdog/imxwd.c
index b2cfd1cd3a31..26c62b7bcb31 100644
--- a/drivers/watchdog/imxwd.c
+++ b/drivers/watchdog/imxwd.c
@@ -21,6 +21,7 @@
#include <restart.h>
#include <watchdog.h>
#include <reset_source.h>
+#include <linux/clk.h>
struct imx_wd;
@@ -224,6 +225,7 @@ static int imx_wd_probe(struct device_d *dev)
{
struct resource *iores;
struct imx_wd *priv;
+ struct clk *clk;
void *ops;
int ret;
@@ -237,6 +239,15 @@ static int imx_wd_probe(struct device_d *dev)
dev_err(dev, "could not get memory region\n");
return PTR_ERR(iores);
}
+
+ clk = clk_get(dev, NULL);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ ret = clk_enable(clk);
+ if (ret)
+ return ret;
+
priv->base = IOMEM(iores->start);
priv->ops = ops;
priv->wd.set_timeout = imx_watchdog_set_timeout;
--
2.29.2
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