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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2015-06-30 15:32:39 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2015-08-10 05:48:56 +0300
commitbb327e92a9651c4d9bbf8ee9a367d575d7e6a102 (patch)
treee95401a705fd012b2a00f3446a17c23399164914 /drivers/extcon
parent57f70ef9bd19378b51a282be6b46b45b70d4980d (diff)
downloadlinux-bb327e92a9651c4d9bbf8ee9a367d575d7e6a102.tar.xz
extcon: arizona: Simplify pdata symantics for micd_dbtime
Currently micd_dbtime can be set to 0 for default, 1 for 4 measurements, or a greater than 16-bit value for 2 measurements. This patch simplifies the symantics to 2 for 2 measurements, 4 for 4 measurements and any other value for the default. I am not super keen on changing the symantics of the pdata at this stage in the drivers life, but acceptance of the DT binding for this field has been made conditional on this happening. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-arizona.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index eaf0644b5506..4b9f09cc38d8 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -48,6 +48,9 @@
#define HPDET_DEBOUNCE 500
#define DEFAULT_MICD_TIMEOUT 2000
+#define MICD_DBTIME_TWO_READINGS 2
+#define MICD_DBTIME_FOUR_READINGS 4
+
#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
@@ -1318,11 +1321,19 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona->pdata.micd_rate
<< ARIZONA_MICD_RATE_SHIFT);
- if (arizona->pdata.micd_dbtime)
+ switch (arizona->pdata.micd_dbtime) {
+ case MICD_DBTIME_FOUR_READINGS:
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
ARIZONA_MICD_DBTIME_MASK,
- arizona->pdata.micd_dbtime
- << ARIZONA_MICD_DBTIME_SHIFT);
+ ARIZONA_MICD_DBTIME);
+ break;
+ case MICD_DBTIME_TWO_READINGS:
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_DBTIME_MASK, 0);
+ break;
+ default:
+ break;
+ }
BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40);