Patch "ASoC: cs42l42: Ensure a reset pulse meets minimum pulse width." has been added to the 6.5-stable tree

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This is a note to let you know that I've just added the patch titled

    ASoC: cs42l42: Ensure a reset pulse meets minimum pulse width.

to the 6.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     asoc-cs42l42-ensure-a-reset-pulse-meets-minimum-puls.patch
and it can be found in the queue-6.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit a0662709004eb2980e58172ebf5d19fcce45d6f6
Author: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
Date:   Wed Sep 13 16:00:10 2023 +0100

    ASoC: cs42l42: Ensure a reset pulse meets minimum pulse width.
    
    [ Upstream commit 41dac81b56c82c51a6d00fda5f3af7691ffee2d7 ]
    
    The CS42L42 can accept very short reset pulses of a few microseconds
    but there's no reason to force a very short pulse.
    Allow a wide range for the usleep_range() so it can be relaxed about
    the choice of timing source.
    
    Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230913150012.604775-2-sbinding@xxxxxxxxxxxxxxxxxxxxx
    Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index a0de0329406a1..56d2857a4f01c 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -2320,6 +2320,10 @@ int cs42l42_common_probe(struct cs42l42_private *cs42l42,
 
 	if (cs42l42->reset_gpio) {
 		dev_dbg(cs42l42->dev, "Found reset GPIO\n");
+
+		/* Ensure minimum reset pulse width */
+		usleep_range(10, 500);
+
 		gpiod_set_value_cansleep(cs42l42->reset_gpio, 1);
 	}
 	usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);



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