[PATCH] vt8500: pinctrl: Change devicetree data parsing

[linux@prisktech.co.nz (Tony Prisk)]

Due to an assumption in the VT8500 pinctrl driver, the value passed
from devicetree for 'wm,pull' was not explicitly translated before
being passed to pinconf.

With changes to 'enum pin_config_param', PIN_CONFIG_BIAS_PULL_(UP/DOWN)
no longer map 1-to-1 with the expected values in devicetree.

This patch adds a small translation between the devicetree values (0..2)
and the enum pin_config_param equivalent values.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
---
 drivers/pinctrl/vt8500/pinctrl-wmt.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c
index 39aec08..fa4fdbd 100644
--- a/drivers/pinctrl/vt8500/pinctrl-wmt.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c
@@ -276,6 +276,17 @@ static int wmt_pctl_dt_node_to_map_pull(struct wmt_pinctrl_data *data,
 	if (!configs)
 		return -ENOMEM;
 
+	switch (pull) {
+	case 0:
+		pull = PIN_CONFIG_BIAS_DISABLE;
+		break;
+	case 1:
+		pull = PIN_CONFIG_BIAS_PULL_DOWN;
+		break;
+	case 2:
+		pull = PIN_CONFIG_BIAS_PULL_UP;
+		break;
+	}
 	configs[0] = pull;
 
 	map->type = PIN_MAP_TYPE_CONFIGS_PIN;
-- 
1.7.9.5