ASoC: cs35l41: Use regmap_read_poll_timeout to wait for OTP boot

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>

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c
index d2a11cc..8c2c695 100644 (file)
--- 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) {