[PATCH 04/15] ASoC: Intel: avs: Add quirk for KBL-R RVP platform

[Cezary Rojewski]

From: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>

KBL-R RVPs contain built-in rt298 codec which requires different PLL
clock and .dai_fmt configuration than seen on other boards.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
---
 sound/soc/intel/avs/boards/rt298.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/sound/soc/intel/avs/boards/rt298.c b/sound/soc/intel/avs/boards/rt298.c
index b28d36872dcb..58c9d9edecf0 100644
--- a/sound/soc/intel/avs/boards/rt298.c
+++ b/sound/soc/intel/avs/boards/rt298.c
@@ -6,6 +6,7 @@
 //          Amadeusz Slawinski <amadeuszx.slawinski at linux.intel.com>
 //
 
+#include <linux/dmi.h>
 #include <linux/module.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
@@ -14,6 +15,16 @@
 #include <sound/soc-acpi.h>
 #include "../../../codecs/rt298.h"
 
+static const struct dmi_system_id kblr_dmi_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Kabylake R DDR4 RVP"),
+		},
+	},
+	{}
+};
+
 static const struct snd_kcontrol_new card_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 	SOC_DAPM_PIN_SWITCH("Mic Jack"),
@@ -96,9 +107,15 @@ avs_rt298_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_param
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	unsigned int clk_freq;
 	int ret;
 
-	ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, 19200000, SND_SOC_CLOCK_IN);
+	if (dmi_first_match(kblr_dmi_table))
+		clk_freq = 24000000;
+	else
+		clk_freq = 19200000;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, clk_freq, SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(rtd->dev, "Set codec sysclk failed: %d\n", ret);
 
@@ -139,7 +156,10 @@ static int avs_create_dai_link(struct device *dev, const char *platform_name, in
 	dl->platforms = platform;
 	dl->num_platforms = 1;
 	dl->id = 0;
-	dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
+	if (dmi_first_match(kblr_dmi_table))
+		dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
+	else
+		dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
 	dl->init = avs_rt298_codec_init;
 	dl->be_hw_params_fixup = avs_rt298_be_fixup;
 	dl->ops = &avs_rt298_ops;
-- 
2.25.1