ALSA: hda/cs8409: Support i2c bulk read/write functions

This allows mutex locks to be moved into i2c functions, as
the bulk read/write functions can lock/unlock themselves to
prevent interruption of sequence reads/writes.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210811185654.6837-17-vitalyr@opensource.cirrus.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_cs8409-tables.c

@@ -146,7 +146,7 @@ const struct hda_pintbl cs8409_cs42l42_pincfgs[] = {
 };
 
 /* Vendor specific HW configuration for CS42L42 */
-const struct cs8409_i2c_param cs42l42_init_reg_seq[] = {
+const struct cs8409_i2c_param cs42l42_init_reg_seq[CS42L42_INIT_REG_SEQ_SIZE] = {
 	{ 0x1010, 0xB0 },
 	{ 0x1D01, 0x00 },
 	{ 0x1D02, 0x06 },
@@ -206,7 +206,6 @@ const struct cs8409_i2c_param cs42l42_init_reg_seq[] = {
 	{ 0x1320, 0xff },
 	{ 0x1b79, 0xff },
 	{ 0x1b7a, 0xff },
-	{} /* Terminator */
 };
 
 /* Vendor specific hw configuration for CS8409 */

sound/pci/hda/patch_cs8409.h

@@ -243,6 +243,8 @@ enum cs8409_coefficient_index_registers {
 #define CS8409_CS42L42_DMIC_PIN_NID		CS8409_PIN_DMIC1_IN
 #define CS8409_CS42L42_DMIC_ADC_PIN_NID		CS8409_PIN_DMIC1
 
+#define CS42L42_INIT_REG_SEQ_SIZE		59
+
 enum {
 	CS8409_BULLSEYE,
 	CS8409_WARLOCK,
@@ -257,7 +259,7 @@ enum {
 
 struct cs8409_i2c_param {
 	unsigned int addr;
-	unsigned int reg;
+	unsigned int value;
 };
 
 struct cs8409_cir_param {
@@ -279,7 +281,7 @@ struct cs8409_spec {
 	unsigned int cs42l42_suspended:1;
 	s8 vol[CS42L42_VOLUMES];
 
-	struct mutex cs8409_i2c_mux;
+	struct mutex i2c_mux;
 	unsigned int i2c_clck_enabled;
 	unsigned int dev_addr;
 	struct delayed_work i2c_clk_work;
@@ -303,7 +305,7 @@ extern const struct hda_model_fixup cs8409_models[];
 extern const struct hda_fixup cs8409_fixups[];
 extern const struct hda_verb cs8409_cs42l42_init_verbs[];
 extern const struct hda_pintbl cs8409_cs42l42_pincfgs[];
-extern const struct cs8409_i2c_param cs42l42_init_reg_seq[];
+extern const struct cs8409_i2c_param cs42l42_init_reg_seq[CS42L42_INIT_REG_SEQ_SIZE];
 extern const struct cs8409_cir_param cs8409_cs42l42_hw_cfg[];
 extern const struct cs8409_cir_param cs8409_cs42l42_bullseye_atn[];