linux-kernel - [PATCH v1] ASoC: rockchip: i2s: use regmap_read_poll_timeout_atomic to poll I2S

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Date:   Fri, 30 Sep 2022 15:15:46 +0000
From:   Judy Hsiao <judyhsiao@...omium.org>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Liam Girdwood <lgirdwood@...il.com>, Lin Huang <hl@...k-chips.com>,
        Elaine Zhang <zhangqing@...k-chips.com>,
        Shunqian Zheng <zhengsq@...k-chips.com>,
        Rob Herring <robh+dt@...nel.org>,
        Brian Norris <briannorris@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Chen-Yu Tsai <wenst@...omium.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Judy Hsiao <judyhsiao@...omium.org>
Subject: [PATCH v1] ASoC: rockchip: i2s: use regmap_read_poll_timeout_atomic to poll I2S_CLR

1. Uses regmap_read_poll_timeout_atomic to poll I2S_CLR as it is called
   within a spin lock.

2. Fixes the typo of break condition in regmap_read_poll_timeout_atomic.

Fixes: fbb0ec656ee5 ("ASoC: rockchip: i2s: use regmap_read_poll_timeout to poll I2S_CLR")
Signed-off-by: Judy Hsiao <judyhsiao@...omium.org>
---
 sound/soc/rockchip/rockchip_i2s.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 28c86f5e435e..a8758ad68442 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -162,12 +162,12 @@ static int rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 						 I2S_CLR_TXC | I2S_CLR_RXC);
 			if (ret < 0)
 				goto end;
-			ret = regmap_read_poll_timeout(i2s->regmap,
-						       I2S_CLR,
-						       val,
-						       val != 0,
-						       20,
-						       200);
+			ret = regmap_read_poll_timeout_atomic(i2s->regmap,
+							      I2S_CLR,
+							      val,
+							      val == 0,
+							      20,
+							      200);
 			if (ret < 0)
 				dev_warn(i2s->dev, "fail to clear: %d\n", ret);
 		}
@@ -220,12 +220,12 @@ static int rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 						 I2S_CLR_TXC | I2S_CLR_RXC);
 			if (ret < 0)
 				goto end;
-			ret = regmap_read_poll_timeout(i2s->regmap,
-						       I2S_CLR,
-						       val,
-						       val != 0,
-						       20,
-						       200);
+			ret = regmap_read_poll_timeout_atomic(i2s->regmap,
+							      I2S_CLR,
+							      val,
+							      val == 0,
+							      20,
+							      200);
 			if (ret < 0)
 				dev_warn(i2s->dev, "fail to clear: %d\n", ret);
 		}
-- 
2.38.0.rc1.362.ged0d419d3c-goog