ASoC: Add EQ and filter to max98095 CODEC driver

This patch adds the equalizer and biquad filter controls.

Signed-off-by: Peter Hsiang <peter.hsiang@maxim-ic.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/max98095.h

@@ -13,8 +13,36 @@
 #ifndef __SOUND_MAX98095_PDATA_H__
 #define __SOUND_MAX98095_PDATA_H__
 
+/* Equalizer filter response configuration */
+struct max98095_eq_cfg {
+	const char *name;
+	unsigned int rate;
+	u16 band1[5];
+	u16 band2[5];
+	u16 band3[5];
+	u16 band4[5];
+	u16 band5[5];
+};
+
+/* Biquad filter response configuration */
+struct max98095_biquad_cfg {
+	const char *name;
+	unsigned int rate;
+	u16 band1[5];
+	u16 band2[5];
+};
+
 /* codec platform data */
 struct max98095_pdata {
+
+	/* Equalizers for DAI1 and DAI2 */
+	struct max98095_eq_cfg *eq_cfg;
+	unsigned int eq_cfgcnt;
+
+	/* Biquad filter for DAI1 and DAI2 */
+	struct max98095_biquad_cfg *bq_cfg;
+	unsigned int bq_cfgcnt;
+
 	/* Analog/digital microphone configuration:
 	 * 0 = analog microphone input (normal setting)
 	 * 1 = digital microphone input