linux-kernel - [PATCH] ALSA: hda/cirrus: Add extra 10 ms delay to allow PLL settle and lock.

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Date:   Mon, 5 Dec 2022 14:57:13 +0000
From:   Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] ALSA: hda/cirrus: Add extra 10 ms delay to allow PLL settle and lock.

New HW platforms with multiple CS42L42 parts, faster CPU and i2c
requre some extra delay to allow PLL to settle and lock. Adding
extra 10ms delay.

Signed-off-by: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
---
 sound/pci/hda/patch_cs8409.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index 754aa8ddd2e4..0ba1fbcbb21e 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -888,7 +888,7 @@ static void cs42l42_resume(struct sub_codec *cs42l42)
 
 	/* Initialize CS42L42 companion codec */
 	cs8409_i2c_bulk_write(cs42l42, cs42l42->init_seq, cs42l42->init_seq_num);
-	usleep_range(20000, 25000);
+	usleep_range(30000, 35000);
 
 	/* Clear interrupts, by reading interrupt status registers */
 	cs8409_i2c_bulk_read(cs42l42, irq_regs, ARRAY_SIZE(irq_regs));
-- 
2.34.1