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pinctrl: qcom: Add BUS_HOLD pin bias

PATCH In review Andy Gross 3 participants 3 messages Jun 18, 2014 – Jul 7, 2014

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Andy Gross

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PATCH 1/1 pinctrl: qcom: Add BUS_HOLD pin bias

This patch adds the BUS_HOLD (Keeper) bias option for pins.

Signed-off-by Andy Gross <[email protected]>
---
 drivers/pinctrl/pinctrl-msm.c | 8 ++++++++
 1 file changed, 8 insertions(+)
drivers/pinctrl/pinctrl-msm.c +8 -0
index e43fbce..9aa2839 100644
@@ -206,6 +206,7 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
 	switch (param) {
 	case PIN_CONFIG_BIAS_DISABLE:
 	case PIN_CONFIG_BIAS_PULL_DOWN:
+	case PIN_CONFIG_BIAS_BUS_HOLD:
 	case PIN_CONFIG_BIAS_PULL_UP:
 		*bit = g->pull_bit;
 		*mask = 3;

@@ -243,6 +244,7 @@ static int msm_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
 
 #define MSM_NO_PULL	0
 #define MSM_PULL_DOWN	1
+#define MSM_KEEPER	2
 #define MSM_PULL_UP	3
 
 static unsigned msm_regval_to_drive(u32 val)

@@ -280,6 +282,9 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev,
 	case PIN_CONFIG_BIAS_PULL_DOWN:
 		arg = arg == MSM_PULL_DOWN;
 		break;
+	case PIN_CONFIG_BIAS_BUS_HOLD:
+		arg = arg == MSM_KEEPER;
+		break;
 	case PIN_CONFIG_BIAS_PULL_UP:
 		arg = arg == MSM_PULL_UP;
 		break;

@@ -339,6 +344,9 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev,
 		case PIN_CONFIG_BIAS_PULL_DOWN:
 			arg = MSM_PULL_DOWN;
 			break;
+		case PIN_CONFIG_BIAS_BUS_HOLD:
+			arg = MSM_KEEPER;
+			break;
 		case PIN_CONFIG_BIAS_PULL_UP:
 			arg = MSM_PULL_UP;
 			break;
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