Revert "FM: Add ALT_SLEEP_CLK support for power on chip"

This reverts commit d3174b47220932d627785702c5e379ac6b50efbd

Change-Id: I592fc7a404b9dfe601a392fdb82b41c332af65da

rtc6226/radio-rtc6226-i2c.c

@@ -393,35 +393,6 @@ open_err_req_irq:
 	return retval;
 }
 
-static int rtc6226_fm_alt_sleep_clk_reg_cfg(struct rtc6226_device *radio, bool power)
-{
-	int rc =0;
-	struct fm_power_vreg_data *vreg;
-
-	vreg = radio->alt_sleep_clkreg;
-	if (!vreg) {
-		FMDERR("In %s, vio reg is NULL\n", __func__);
-		return rc;
-	}
-	if (power) {
-		FMDBG("vreg is : %s\n", vreg->name);
-		rc = regulator_enable(vreg->reg);
-		if (rc < 0) {
-			FMDERR("reg enable(%s) failed.rc=%d\n", vreg->name, rc);
-			return rc;
-		}
-		vreg->is_enabled = true;
-        } else {
-		rc = regulator_disable(vreg->reg);
-		if (rc < 0) {
-			FMDERR("reg disable(%s) fail rc=%d\n", vreg->name, rc);
-			return rc;
-		}
-		vreg->is_enabled = false;
-	}
-	return rc;
-}
-
 static int rtc6226_fm_vio_reg_cfg(struct rtc6226_device *radio, bool on)
 {
 	int rc = 0;
@@ -554,13 +525,6 @@ static int rtc6226_fm_power_cfg(struct rtc6226_device *radio, bool powerflag)
 			rtc6226_fm_vdd_reg_cfg(radio, false);
 			return rc;
 		}
-		rc = rtc6226_fm_alt_sleep_clk_reg_cfg(radio, powerflag);
-		if (rc < 0) {
-			FMDERR("In %s, vio reg cfg failed %x\n", __func__, rc);
-			rtc6226_fm_vdd_reg_cfg(radio, false);
-			rtc6226_fm_vio_reg_cfg(radio, false);
-			return rc;
-		}
 	} else {
 		/* Turn OFF sequence */
 		rc = rtc6226_fm_vdd_reg_cfg(radio, powerflag);
@@ -569,9 +533,6 @@ static int rtc6226_fm_power_cfg(struct rtc6226_device *radio, bool powerflag)
 		rc = rtc6226_fm_vio_reg_cfg(radio, powerflag);
 		if (rc < 0)
 			FMDERR("In %s, vio reg cfg failed %x\n", __func__, rc);
-		rc = rtc6226_fm_alt_sleep_clk_reg_cfg(radio, powerflag);
-		if (rc < 0)
-			FMDERR("In %s, alt_sleep_clk_ reg cfg failed %x\n", __func__, rc);
 	}
 	return rc;
 }
@@ -744,7 +705,6 @@ static int rtc6226_i2c_probe(struct i2c_client *client,
 	struct v4l2_ctrl_handler *hdl;
 	struct regulator *vddvreg = NULL;
 	struct regulator *viovreg = NULL;
-	struct regulator *alt_sleep_clk_vreg = NULL;
 	int retval = 0;
 	int i = 0;
 	int kfifo_alloc_rc = 0;
@@ -780,15 +740,6 @@ static int rtc6226_i2c_probe(struct i2c_client *client,
 		return retval;
 	}
 
-	alt_sleep_clk_vreg = regulator_get(&client->dev, "alt-sleep-clk");
-	if (IS_ERR(alt_sleep_clk_vreg)) {
-		retval = PTR_ERR(alt_sleep_clk_vreg);
-		FMDERR("%s: regulator_get(alt_sleep_clk) failed. retval=%d\n",
-			__func__, retval);
-		regulator_put(vddvreg);
-		regulator_put(viovreg);
-		return retval;
-	}
 	/* private data allocation and initialization */
 	radio = kzalloc(sizeof(struct rtc6226_device), GFP_KERNEL);
 	if (!radio) {
@@ -862,19 +813,6 @@ static int rtc6226_i2c_probe(struct i2c_client *client,
 		FMDERR("%s: parsing vio-supply failed\n", __func__);
 		goto err_v4l2;
 	}
-	radio->alt_sleep_clkreg = devm_kzalloc(&client->dev,
-				sizeof(struct fm_power_vreg_data),
-				GFP_KERNEL);
-	if (!radio->alt_sleep_clkreg) {
-		FMDERR("%s: allocating memory for alt_sleep_clk vreg failed\n",
-							__func__);
-		retval = -ENOMEM;
-		goto err_v4l2;
-        }
-	radio->alt_sleep_clkreg->reg = alt_sleep_clk_vreg;
-	radio->alt_sleep_clkreg->name = "alt-sleep-clk";
-	radio->alt_sleep_clkreg->is_enabled = false;
-
 	/* Initialize pin control*/
 	retval = rtc6226_pinctrl_init(radio);
 	if (retval) {
@@ -984,12 +922,6 @@ err_vreg:
 	} else {
 		regulator_put(vddvreg);
 	}
-	if (radio && radio->alt_sleep_clkreg && radio->alt_sleep_clkreg->reg) {
-		regulator_put(radio->alt_sleep_clkreg->reg);
-		devm_kfree(&client->dev, radio->alt_sleep_clkreg);
-	} else {
-		regulator_put(alt_sleep_clk_vreg);
-	}
 	kfree(radio);
 	return retval;
 }

rtc6226/radio-rtc6226.h

@@ -482,7 +482,6 @@ struct rtc6226_device {
 	struct v4l2_ctrl_handler ctrl_handler;
 	struct fm_power_vreg_data *vddreg;
 	struct fm_power_vreg_data *vioreg;
-	struct fm_power_vreg_data *alt_sleep_clkreg;
 	int band;
 	int space;
 	atomic_t users;