ASoC: Intel: Atom: add support for RT5642

The machine driver is not loaded when the BIOS uses the 10EC5642
_HID. Add it to the white list of known _HIDs, codec_name is
already taken care of by previous commit

Tested on Asus T100TAF.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c
index f61e531..510826f 100644
--- a/sound/soc/intel/atom/sst/sst_acpi.c
+++ b/sound/soc/intel/atom/sst/sst_acpi.c
@@ -323,6 +323,8 @@
 static struct sst_acpi_mach sst_acpi_bytcr[] = {
 	{"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
 						&byt_rvp_platform_data },
+	{"10EC5642", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
+						&byt_rvp_platform_data },
 	{"10EC5651", "bytcr_rt5651", "intel/fw_sst_0f28.bin", "bytcr_rt5651", NULL,
 						&byt_rvp_platform_data },
 
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index 74bb7cc..5b0cdad 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -302,7 +302,7 @@
 		.platform_name = "sst-mfld-platform",
 		.no_pcm = 1,
 		.codec_dai_name = "rt5640-aif1",
-		.codec_name = "i2c-10EC5640:00",
+		.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 						| SND_SOC_DAIFMT_CBS_CFS,
 		.be_hw_params_fixup = byt_rt5640_codec_fixup,