From 3a2eb0b4b02060340af10a1db3c452472471be2f Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.cirrus.com>
Date: Tue, 14 Sep 2021 15:13:45 +0100
Subject: [PATCH] ASoC: cs35l41: Use regmap_read_poll_timeout to wait for OTP boot
Git-commit: 3a2eb0b4b02060340af10a1db3c452472471be2f
Patch-mainline: v5.16-rc1
References: bsc#1203699

Just clean up the code a little by using the helper rather than open
coding waiting for OTP_BOOT_DONE.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/codecs/cs35l41.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c
index d2a11cc33683..8c2c695813cd 100644
--- a/sound/soc/codecs/cs35l41.c
+++ b/sound/soc/codecs/cs35l41.c
@@ -1323,7 +1323,6 @@ int cs35l41_probe(struct cs35l41_private *cs35l41,
 {
 	u32 regid, reg_revid, i, mtl_revid, int_status, chipid_match;
 	int irq_pol = 0;
-	int timeout;
 	int ret;
 
 	if (pdata) {
@@ -1377,18 +1376,14 @@ int cs35l41_probe(struct cs35l41_private *cs35l41,
 
 	usleep_range(2000, 2100);
 
-	timeout = 100;
-	do {
-		if (timeout == 0) {
-			dev_err(cs35l41->dev,
-				"Timeout waiting for OTP_BOOT_DONE\n");
-			ret = -EBUSY;
-			goto err;
-		}
-		usleep_range(1000, 1100);
-		regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS4, &int_status);
-		timeout--;
-	} while (!(int_status & CS35L41_OTP_BOOT_DONE));
+	ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS4,
+				       int_status, int_status & CS35L41_OTP_BOOT_DONE,
+				       1000, 100000);
+	if (ret) {
+		dev_err(cs35l41->dev,
+			"Failed waiting for OTP_BOOT_DONE: %d\n", ret);
+		goto err;
+	}
 
 	regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_status);
 	if (int_status & CS35L41_OTP_BOOT_ERR) {
-- 
2.35.3