diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2018-01-16 02:00:18 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-01-16 13:26:35 +0000 |
| commit | 3c89724e994f4aee6ae2637ccd4e12aa4f92666c (patch) | |
| tree | e66e48fbedce3b4085c9d642ccc52428438ef969 /sound | |
| parent | 39b5a0f80c07f41440f38761e4b8d36bf2072007 (diff) | |
| download | linux-3c89724e994f4aee6ae2637ccd4e12aa4f92666c.tar.bz2 | |
ASoC: cx20442: fix regression by adding back .read/.write
commit 39b5a0f80c07f ("ASoC: cx20442: don't use reg_cache")
removed .read/.write from driver, but it might breaks non-regmap
driver, because ALSA SoC framework might call it.
To fix this regression, this patch back .read/.write.
and also this patch uses cx20442 internal reg_cache
which is needed for .read/.write.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cx20442.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/sound/soc/codecs/cx20442.c b/sound/soc/codecs/cx20442.c index 6b6f8e44369b..95bb10ba80dc 100644 --- a/sound/soc/codecs/cx20442.c +++ b/sound/soc/codecs/cx20442.c @@ -28,6 +28,7 @@ struct cx20442_priv { struct tty_struct *tty; struct regulator *por; + u8 reg_cache; }; #define CX20442_PM 0x0 @@ -88,6 +89,17 @@ static const struct snd_soc_dapm_route cx20442_audio_map[] = { {"ADC", NULL, "Input Mixer"}, }; +static unsigned int cx20442_read_reg_cache(struct snd_soc_codec *codec, + unsigned int reg) +{ + struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec); + + if (reg >= 1) + return -EINVAL; + + return cx20442->reg_cache; +} + enum v253_vls { V253_VLS_NONE = 0, V253_VLS_T, @@ -112,8 +124,6 @@ enum v253_vls { V253_VLS_TEST, }; -#if 0 -/* FIXME : these function will be re-used */ static int cx20442_pm_to_v253_vls(u8 value) { switch (value & ~(1 << CX20442_AGC)) { @@ -147,11 +157,10 @@ static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec); - u8 *reg_cache = codec->reg_cache; int vls, vsp, old, len; char buf[18]; - if (reg >= codec->driver->reg_cache_size) + if (reg >= 1) return -EINVAL; /* tty and write pointers required for talking to the modem @@ -159,8 +168,8 @@ static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg, if (!cx20442->tty || !cx20442->tty->ops->write) return -EIO; - old = reg_cache[reg]; - reg_cache[reg] = value; + old = cx20442->reg_cache; + cx20442->reg_cache = value; vls = cx20442_pm_to_v253_vls(value); if (vls < 0) @@ -190,7 +199,6 @@ static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg, return 0; } -#endif /* * Line discpline related code @@ -384,12 +392,12 @@ static int cx20442_codec_remove(struct snd_soc_codec *codec) return 0; } -static const u8 cx20442_reg; - static const struct snd_soc_codec_driver cx20442_codec_dev = { .probe = cx20442_codec_probe, .remove = cx20442_codec_remove, .set_bias_level = cx20442_set_bias_level, + .read = cx20442_read_reg_cache, + .write = cx20442_write, .component_driver = { .dapm_widgets = cx20442_dapm_widgets, |