ASoC: Intel: bytcr_rt5640: Unify BYTCR input defaults

Currently we've 2 places with BYTCR defaults: 1. The generic catch-all
DMI_SYS_VENDOR=="Insyde" DMI quirk which selects SSP0-AIF1 for generic
Insyde BYTCR tablets without the ACPI channel package; and 2. the
defaults in the if (is_bytcr) {} code block.

Currently these are not identical, both select IN3 as the internal mic
output, but the "Insyde" DMI quirk leaves out the DIFF_MIC quirk. The
DIFF_MIC quirk should be enabled by default, because enabling diff. input
helps a lot for devices with a differential mic, where as it is a nop on
devices with a normal mic.

This commit adds the DIFF_MIC quirk to the "Insyde" DMI quirk path, by
adding a new BYTCR_INPUT_DEFAULTS define and using that in both code paths
which set BYTCR defaults.

Having a single place where the BYTCR input defaults are defined also
allows defining jack-detect defaults in a single place in a follow-up
commit.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/bytcr_rt5640.c

@@ -82,6 +82,10 @@ enum {
 #define BYT_RT5640_MCLK_EN		BIT(22)
 #define BYT_RT5640_MCLK_25MHZ		BIT(23)
 
+#define BYTCR_INPUT_DEFAULTS				\
+	(BYT_RT5640_IN3_MAP |				\
+	 BYT_RT5640_DIFF_MIC)
+
 /* in-diff or dmic-pin + jdsrc + ovcd-th + -sf + jd-inv + terminating entry */
 #define MAX_NO_PROPS 6
 
@@ -475,7 +479,7 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 		},
-		.driver_data = (void *)(BYT_RT5640_IN3_MAP |
+		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
 					BYT_RT5640_MCLK_EN |
 					BYT_RT5640_SSP0_AIF1),
 
@@ -979,8 +983,7 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 		}
 
 		/* change defaults for Baytrail-CR capture */
-		byt_rt5640_quirk |= BYT_RT5640_IN3_MAP;
-		byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
+		byt_rt5640_quirk |= BYTCR_INPUT_DEFAULTS;
 	} else {
 		byt_rt5640_quirk |= BYT_RT5640_DMIC1_MAP;
 	}