Unverified Commit 0c279a59 authored Nov 09, 2017 by Akshu Agrawal Committed by Mark Brown Nov 09, 2017

ASoC: rt5645: Wait for 400msec before concluding on value of RT5645_VENDOR_ID2



Minimum time required between power On of codec and read
of RT5645_VENDOR_ID2 is 400msec. We should wait that long
before reading the value.

TEST=Cold boot the device and check for sound device.

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 50f510a3

sound/soc/codecs/rt5645.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -55,6 +55,8 @@ MODULE_PARM_DESC(quirk, "RT5645 pdata quirk override");

		#define RT5645_HWEQ_NUM 57

		#define TIME_TO_POWER_MS 400

		static const struct regmap_range_cfg rt5645_ranges[] = {
		{
		.name = "PR",
		@@ -3784,6 +3786,12 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
		ret);
		return ret;
		}

		/*
		* Read after 400msec, as it is the interval required between
		* read and power On.
		*/
		msleep(TIME_TO_POWER_MS);
		regmap_read(regmap, RT5645_VENDOR_ID2, &val);

		switch (val) {