extcon: arizona: support inverted jack detect switch

Add config option for inverted jack detect switch that
opens when jack is inserted.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
[Acked by Lee Jones for MFD part]
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

1 files changed, 26 insertions, 8 deletions

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 6c84e3d12043..cf907430a698 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -39,6 +39,11 @@
 #define ARIZONA_ACCDET_MODE_HPL 1
 #define ARIZONA_ACCDET_MODE_HPR 2
 
+#define ARIZONA_MICD_CLAMP_MODE_JDL      0x4
+#define ARIZONA_MICD_CLAMP_MODE_JDH      0x5
+#define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
+#define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
+
 #define ARIZONA_HPDET_MAX 10000
 
 #define HPDET_DEBOUNCE 500
@@ -962,10 +967,16 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 
         if (arizona->pdata.jd_gpio5) {
                 mask = ARIZONA_MICD_CLAMP_STS;
-                present = 0;
+                if (arizona->pdata.jd_invert)
+                        present = ARIZONA_MICD_CLAMP_STS;
+                else
+                        present = 0;
         } else {
                 mask = ARIZONA_JD1_STS;
-                present = ARIZONA_JD1_STS;
+                if (arizona->pdata.jd_invert)
+                        present = 0;
+                else
+                        present = ARIZONA_JD1_STS;
         }
 
         ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val);
@@ -1096,6 +1107,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
         struct arizona_pdata *pdata = &arizona->pdata;
         struct arizona_extcon_info *info;
         unsigned int val;
+        unsigned int clamp_mode;
         int jack_irq_fall, jack_irq_rise;
         int ret, mode, i, j;
 
@@ -1305,16 +1317,22 @@ static int arizona_extcon_probe(struct platform_device *pdev)
                         regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL,
                                      val);
 
-                        regmap_update_bits(arizona->regmap,
-                                           ARIZONA_MICD_CLAMP_CONTROL,
-                                           ARIZONA_MICD_CLAMP_MODE_MASK, 0x9);
+                        if (arizona->pdata.jd_invert)
+                                clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H;
+                        else
+                                clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;
                 } else {
-                        regmap_update_bits(arizona->regmap,
-                                           ARIZONA_MICD_CLAMP_CONTROL,
-                                           ARIZONA_MICD_CLAMP_MODE_MASK, 0x4);
+                        if (arizona->pdata.jd_invert)
+                                clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;
+                        else
+                                clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL;
                 }
 
                 regmap_update_bits(arizona->regmap,
+                                   ARIZONA_MICD_CLAMP_CONTROL,
+                                   ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode);
+
+                regmap_update_bits(arizona->regmap,
                                    ARIZONA_JACK_DETECT_DEBOUNCE,
                                    ARIZONA_MICD_CLAMP_DB,
                                    ARIZONA_MICD_CLAMP_DB);