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path: root/drivers/pinctrl
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Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/qcom/pinctrl-msm.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index f8e9e1c2b2f6..c978be5eb9eb 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -422,6 +422,20 @@ static int msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, in
return 0;
}
+static int msm_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
+{
+ struct msm_pinctrl *pctrl = gpiochip_get_data(chip);
+ const struct msm_pingroup *g;
+ u32 val;
+
+ g = &pctrl->soc->groups[offset];
+
+ val = readl(pctrl->regs + g->ctl_reg);
+
+ /* 0 = output, 1 = input */
+ return val & BIT(g->oe_bit) ? 0 : 1;
+}
+
static int msm_gpio_get(struct gpio_chip *chip, unsigned offset)
{
const struct msm_pingroup *g;
@@ -510,6 +524,7 @@ static void msm_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
static struct gpio_chip msm_gpio_template = {
.direction_input = msm_gpio_direction_input,
.direction_output = msm_gpio_direction_output,
+ .get_direction = msm_gpio_get_direction,
.get = msm_gpio_get,
.set = msm_gpio_set,
.request = gpiochip_generic_request,