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From b1325bfad3ad0e543ce90a6b08d74500dc96f4b9 Mon Sep 17 00:00:00 2001
From: Andy Gross <agross@codeaurora.org>
Date: Mon, 16 Jun 2014 16:52:55 -0500
Subject: [PATCH 149/182] pinctrl: qcom: Add BUS_HOLD/Keeper bias
This patch adds the bus_hold bias option for pins.
Signed-off-by: Andy Gross <agross@codeaurora.org>
---
drivers/pinctrl/pinctrl-msm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
index 7d67d34..f054b25 100644
--- a/drivers/pinctrl/pinctrl-msm.c
+++ b/drivers/pinctrl/pinctrl-msm.c
@@ -207,6 +207,7 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
case PIN_CONFIG_BIAS_DISABLE:
case PIN_CONFIG_BIAS_PULL_DOWN:
case PIN_CONFIG_BIAS_PULL_UP:
+ case PIN_CONFIG_BIAS_BUS_HOLD:
*bit = g->pull_bit;
*mask = 3;
break;
@@ -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;
--
1.7.10.4
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