From: Rayagonda Kokatanur <rayagonda.kokata...@broadcom.com>
Add pinctrl_ops->request api to configure pctrl pad register
to configure in gpio mode.
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokata...@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyanni...@broadcom.com>
---
drivers/pinctrl/pinctrl-single.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 6c6a33e4c5..2dcc131513 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -136,6 +136,35 @@ static int single_configure_bits(struct udevice *dev,
}
return 0;
}
+
+static int single_request(struct udevice *dev, int pin, int flags)
+{
+ struct single_pdata *pdata = dev->platdata;
+ struct single_gpiofunc_range *frange = NULL;
+ struct list_head *pos, *tmp;
+ int mux_bytes = 0;
+ u32 data;
+
+ if (!pdata->mask)
+ return -ENOTSUPP;
+
+ list_for_each_safe(pos, tmp, &pdata->gpiofuncs) {
+ frange = list_entry(pos, struct single_gpiofunc_range, node);
+ if ((pin >= frange->offset + frange->npins) ||
+ pin < frange->offset)
+ continue;
+
+ mux_bytes = pdata->width / BITS_PER_BYTE;
+ data = pdata->read(pdata->base + pin * mux_bytes);
+ data &= ~pdata->mask;
+ data |= frange->gpiofunc;
+ pdata->write(data, pdata->base + pin * mux_bytes);
+ break;
+ }
+
+ return 0;
+}
+
static int single_set_state(struct udevice *dev,
struct udevice *config)
{
@@ -235,6 +264,7 @@ static int single_ofdata_to_platdata(struct udevice *dev)
const struct pinctrl_ops single_pinctrl_ops = {
.set_state = single_set_state,
+ .request = single_request,
};
static const struct udevice_id single_pinctrl_match[] = {
--
2.17.1
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