regulator: cp9314: Drops B0 silicon support

Removes support for B0 revision silicon. The B0 revision is no longer
recommended for use in host-controlled applications and there are no
users of this driver implementing B0 silicon in their final design.

Signed-off-by: Ricardo Rivera-Matos <[email protected]>

Author: rriveramcrus

drivers/regulator/regulator_cp9314.c

@@ -119,7 +119,6 @@ LOG_MODULE_REGISTER(CP9314, CONFIG_REGULATOR_LOG_LEVEL);
 
 #define CP9314_REG_BC_STS_C  0x62
 #define CP9314_CHIP_REV_MASK GENMASK(7, 4)
-#define CP9314_CHIP_REV_B0   0x1
 #define CP9314_CHIP_REV_B1   0x3
 
 #define CP9314_REG_FORCE_SC_MISC 0x69
@@ -222,31 +221,6 @@ struct cp9314_reg_patch {
 	uint8_t value;
 };
 
-/*
- * HW errata patch for B0 silicon. Intended to correct POR configuration values for protection
- * comparators, disable OCP comparators, and enable the output undervoltage comparator.
- */
-static struct cp9314_reg_patch b0_reg_patch[18] = {
-	{CP9314_REG_CRUS_CTRL, GENMASK(7, 0), CP9314_CRUS_KEY_UNLOCK},
-	{CP9314_REG_LION_COMP_CTRL_3, CP9314_VIN_OV_CFG, 0x1B},
-	{CP9314_REG_LION_COMP_CTRL_1, CP9314_VOUT_OV_CFG_0, 0x30},
-	{CP9314_REG_LION_COMP_CTRL_2, CP9314_VOUT_OV_CFG_1, 0xC},
-	{CP9314_REG_VIN2OUT_OVP, CP9314_VIN2OUT_OVP, 0x2},
-	{CP9314_REG_VIN2OUT_UVP, CP9314_VIN2OUT_UVP, 0x1},
-	{CP9314_REG_VOUT_UVP, CP9314_VOUT_UVP_DIS, 0},
-	{CP9314_REG_VOUT_UVP, CP9314_VOUT_UVP, 0},
-	{CP9314_REG_LION_COMP_CTRL_1, CP9314_VIN_SWITCH_OK_DIS_0, 0},
-	{CP9314_REG_LION_COMP_CTRL_4, CP9314_VIN_SWITCH_OK_DIS_1, 0},
-	{CP9314_REG_LION_COMP_CTRL_1, CP9314_VIN_SWITCH_OK_CFG, 0},
-	{CP9314_REG_LION_CFG_3, CP9314_LB_MIN_FREQ_SEL_0, 0x80},
-	{CP9314_REG_LB_CTRL, CP9314_LB_MIN_FREQ_SEL_1, 0x4},
-	{CP9314_REG_TRIM_8, CP9314_MODE_CTRL_UPDATE_BW_0, 0x2},
-	{CP9314_REG_LION_CFG_3, CP9314_MODE_CTRL_UPDATE_BW_1, 0x2},
-	{CP9314_REG_IIN_OCP, CP9314_IIN_OCP_DIS, CP9314_IIN_OCP_DIS},
-	{CP9314_REG_IIN_PEAK_OCP, CP9314_IIN_PEAK_OCP_DIS, CP9314_IIN_PEAK_OCP_DIS},
-	{CP9314_REG_CRUS_CTRL, GENMASK(7, 0), CP9314_CRUS_KEY_LOCK},
-};
-
 /* OTP memory errata patch for OTP v1. Corrects trim errata. */
 static struct cp9314_reg_patch otp_1_patch[3] = {
 	{CP9314_REG_OPTION_REG_1, CP9314_LB1_DELAY_CFG, 0},
@@ -468,22 +442,6 @@ static int cp9314_cfg_sync(const struct device *dev)
 				      CP9314_FRC_SYNC_MODE);
 }
 
-static int regulator_cp9314_b0_init(const struct device *dev)
-{
-	const struct regulator_cp9314_config *config = dev->config;
-	int ret;
-
-	for (size_t i = 0U; i < ARRAY_SIZE(b0_reg_patch); i++) {
-		ret = i2c_reg_update_byte_dt(&config->i2c, b0_reg_patch[i].reg_addr,
-					     b0_reg_patch[i].mask, b0_reg_patch[i].value);
-		if (ret < 0) {
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
 static int cp9314_do_soft_reset(const struct device *dev)
 {
 	const struct regulator_cp9314_config *config = dev->config;
@@ -645,12 +603,6 @@ static int regulator_cp9314_init(const struct device *dev)
 	value = FIELD_GET(CP9314_CHIP_REV_MASK, value);
 
 	switch (value) {
-	case CP9314_CHIP_REV_B0:
-		ret = regulator_cp9314_b0_init(dev);
-		if (ret < 0) {
-			return ret;
-		}
-		break;
 	case CP9314_CHIP_REV_B1:
 		break;
 	default: