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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>
This commit is contained in:
Charles Keepax 2015-06-30 13:32:39 +01:00 committed by Chanwoo Choi
parent 57f70ef9bd
commit bb327e92a9
1 changed files with 14 additions and 3 deletions
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17
drivers/extcon/extcon-arizona.c
View File

@ -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);