target/linux/ipq806x/patches/0149-pinctrl-qcom-Add-BUS_HOLD-Keeper-bias.patch

   1 From b1325bfad3ad0e543ce90a6b08d74500dc96f4b9 Mon Sep 17 00:00:00 2001
   2 From: Andy Gross <agross@codeaurora.org>
   3 Date: Mon, 16 Jun 2014 16:52:55 -0500
   4 Subject: [PATCH 149/182] pinctrl: qcom: Add BUS_HOLD/Keeper bias
   5
   6 This patch adds the bus_hold bias option for pins.
   7
   8 Signed-off-by: Andy Gross <agross@codeaurora.org>
   9 ---
  10  drivers/pinctrl/pinctrl-msm.c |    8 ++++++++
  11  1 file changed, 8 insertions(+)
  12
  13 --- a/drivers/pinctrl/pinctrl-msm.c
  14 +++ b/drivers/pinctrl/pinctrl-msm.c
  15 @@ -207,6 +207,7 @@ static int msm_config_reg(struct msm_pin
  16         case PIN_CONFIG_BIAS_DISABLE:
  17         case PIN_CONFIG_BIAS_PULL_DOWN:
  18         case PIN_CONFIG_BIAS_PULL_UP:
  19 +       case PIN_CONFIG_BIAS_BUS_HOLD:
  20                 *bit = g->pull_bit;
  21                 *mask = 3;
  22                 break;
  23 @@ -243,6 +244,7 @@ static int msm_config_set(struct pinctrl
  24
  25  #define MSM_NO_PULL    0
  26  #define MSM_PULL_DOWN  1
  27 +#define MSM_KEEPER     2
  28  #define MSM_PULL_UP    3
  29
  30  static unsigned msm_regval_to_drive(u32 val)
  31 @@ -280,6 +282,9 @@ static int msm_config_group_get(struct p
  32         case PIN_CONFIG_BIAS_PULL_DOWN:
  33                 arg = arg == MSM_PULL_DOWN;
  34                 break;
  35 +       case PIN_CONFIG_BIAS_BUS_HOLD:
  36 +               arg = arg == MSM_KEEPER;
  37 +               break;
  38         case PIN_CONFIG_BIAS_PULL_UP:
  39                 arg = arg == MSM_PULL_UP;
  40                 break;
  41 @@ -339,6 +344,9 @@ static int msm_config_group_set(struct p
  42                 case PIN_CONFIG_BIAS_PULL_DOWN:
  43                         arg = MSM_PULL_DOWN;
  44                         break;
  45 +               case PIN_CONFIG_BIAS_BUS_HOLD:
  46 +                       arg = MSM_KEEPER;
  47 +                       break;
  48                 case PIN_CONFIG_BIAS_PULL_UP:
  49                         arg = MSM_PULL_UP;
  50                         break;