diff options
| author | Judy Hsiao <judyhsiao@chromium.org> | 2022-09-14 03:12:34 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-09-14 10:39:28 +0100 |
| commit | fbb0ec656ee5ee43b4b3022fd8290707265c52df (patch) | |
| tree | ee81d5167b923203519640e9d7a69ffe175354f0 | |
| parent | 3e9a838634b181b5775d3459f05c2055d24d080a (diff) | |
ASoC: rockchip: i2s: use regmap_read_poll_timeout to poll I2S_CLR
Use regmap_read_poll_timeout to poll I2S_CLR.
It also fixes the 'rockchip-i2s ff070000.i2s; fail to clear' when
the read of I2S_CLR exceeds the retry limit.
Fixes: 0ff9f8b9f592 ("ASoC: rockchip: i2s: Fix error code when fail to read I2S_CLR")
Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20220914031234.2250298-1-judyhsiao@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/rockchip/rockchip_i2s.c | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index f5f3540a9e18..28c86f5e435e 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -126,7 +126,6 @@ static inline struct rk_i2s_dev *to_info(struct snd_soc_dai *dai) static int rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) { unsigned int val = 0; - int retry = 10; int ret = 0; spin_lock(&i2s->lock); @@ -163,18 +162,14 @@ static int rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) I2S_CLR_TXC | I2S_CLR_RXC); if (ret < 0) goto end; - regmap_read(i2s->regmap, I2S_CLR, &val); - - /* Should wait for clear operation to finish */ - while (val) { - regmap_read(i2s->regmap, I2S_CLR, &val); - retry--; - if (!retry) { - dev_warn(i2s->dev, "fail to clear\n"); - ret = -EBUSY; - break; - } - } + ret = regmap_read_poll_timeout(i2s->regmap, + I2S_CLR, + val, + val != 0, + 20, + 200); + if (ret < 0) + dev_warn(i2s->dev, "fail to clear: %d\n", ret); } } end: @@ -188,7 +183,6 @@ end: static int rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) { unsigned int val = 0; - int retry = 10; int ret = 0; spin_lock(&i2s->lock); @@ -226,17 +220,14 @@ static int rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) I2S_CLR_TXC | I2S_CLR_RXC); if (ret < 0) goto end; - regmap_read(i2s->regmap, I2S_CLR, &val); - /* Should wait for clear operation to finish */ - while (val) { - regmap_read(i2s->regmap, I2S_CLR, &val); - retry--; - if (!retry) { - dev_warn(i2s->dev, "fail to clear\n"); - ret = -EBUSY; - break; - } - } + ret = regmap_read_poll_timeout(i2s->regmap, + I2S_CLR, + val, + val != 0, + 20, + 200); + if (ret < 0) + dev_warn(i2s->dev, "fail to clear: %d\n", ret); } } end: |