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| author | Mark Brown <broonie@linaro.org> | 2014-08-13 11:42:46 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-09-26 08:15:38 +0100 |
| commit | 48018943eb906d81e48f40675c17b92abfeafcf1 (patch) | |
| tree | c37abfa842352594bfe235077165dc68a3353bf0 | |
| parent | 5e9bbf17b35f89f31e6b76b4810d8c772621c153 (diff) | |
| download | lwn-48018943eb906d81e48f40675c17b92abfeafcf1.tar.gz lwn-48018943eb906d81e48f40675c17b92abfeafcf1.zip | |
mfd: wm5102: Mark register write sequencer control 3 readable
During init the core checks if the wm5102 has finished starting by reading
register 0x19 and looking at the value. This read always fails since this
is not a readable register, mark it as being one. While we're at it provide
a constant for the register name (as supplied by Charles Keepax).
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | drivers/mfd/arizona-core.c | 3 | ||||
| -rw-r--r-- | drivers/mfd/wm5102-tables.c | 1 | ||||
| -rw-r--r-- | include/linux/mfd/arizona/registers.h | 1 |
3 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 10a0cb90619a..7eabc36b97c1 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -784,7 +784,8 @@ int arizona_dev_init(struct arizona *arizona) /* Ensure device startup is complete */ switch (arizona->type) { case WM5102: - ret = regmap_read(arizona->regmap, 0x19, &val); + ret = regmap_read(arizona->regmap, + ARIZONA_WRITE_SEQUENCER_CTRL_3, &val); if (ret != 0) dev_err(dev, "Failed to check write sequencer state: %d\n", diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index a219888d7f4b..77e16e59a45d 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -1017,6 +1017,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_WRITE_SEQUENCER_CTRL_0: case ARIZONA_WRITE_SEQUENCER_CTRL_1: case ARIZONA_WRITE_SEQUENCER_CTRL_2: + case ARIZONA_WRITE_SEQUENCER_CTRL_3: case ARIZONA_WRITE_SEQUENCER_PROM: case ARIZONA_TONE_GENERATOR_1: case ARIZONA_TONE_GENERATOR_2: diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index dbd23c36de21..68913ec90969 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -27,6 +27,7 @@ #define ARIZONA_WRITE_SEQUENCER_CTRL_0 0x16 #define ARIZONA_WRITE_SEQUENCER_CTRL_1 0x17 #define ARIZONA_WRITE_SEQUENCER_CTRL_2 0x18 +#define ARIZONA_WRITE_SEQUENCER_CTRL_3 0x19 #define ARIZONA_WRITE_SEQUENCER_PROM 0x1A #define ARIZONA_TONE_GENERATOR_1 0x20 #define ARIZONA_TONE_GENERATOR_2 0x21 |