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Commit c80ba91a authored by Umesh Vats's avatar Umesh Vats Committed by Gerrit - the friendly Code Review server
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bluetooth: Enable LDO for supporting ASD 



Add enablement of LDO to support antenna switching
diversity feature.

Change-Id: I755e48d66f84e2f2f8b5ef7c0d16b1b794d73259
Signed-off-by: default avatarUmesh Vats <uvats@codeaurora.org>
parent 95ec895e

drivers/bluetooth/bluetooth-power.c

+15 −0
Original line number Diff line number Diff line
@@ -318,6 +318,13 @@ static int bluetooth_power(int on) 
				goto vdd_rfa2_fail;

			}

		}

		if (bt_power_pdata->bt_vdd_asd) {

			rc = bt_configure_vreg(bt_power_pdata->bt_vdd_asd);

			if (rc < 0) {

				BT_PWR_ERR("bt_power vddasd config failed");

				goto vdd_asd_fail;

			}

		}

		if (bt_power_pdata->bt_chip_pwd) {

			rc = bt_configure_vreg(bt_power_pdata->bt_chip_pwd);

			if (rc < 0) {
@@ -354,6 +361,9 @@ static int bluetooth_power(int on) 
		if (bt_power_pdata->bt_chip_pwd)

			bt_vreg_disable(bt_power_pdata->bt_chip_pwd);

chip_pwd_fail:

		if (bt_power_pdata->bt_vdd_asd)

			bt_vreg_disable(bt_power_pdata->bt_vdd_asd);

vdd_asd_fail:

		if (bt_power_pdata->bt_vdd_rfa2)

			bt_vreg_disable(bt_power_pdata->bt_vdd_rfa2);

vdd_rfa2_fail:
@@ -657,6 +667,11 @@ static int bt_power_populate_dt_pinfo(struct platform_device *pdev) 
					"qca,bt-vdd-rfa2");

		if (rc < 0)

			BT_PWR_ERR("bt-vdd-rfa2 not provided in device tree");

		rc = bt_dt_parse_vreg_info(&pdev->dev,

					&bt_power_pdata->bt_vdd_asd,

					"qca,bt-vdd-asd");

		if (rc < 0)

			BT_PWR_ERR("bt-vdd-asd not provided in device tree");

		rc = bt_dt_parse_clk_info(&pdev->dev,

					&bt_power_pdata->bt_chip_clk);

		if (rc < 0)

include/linux/bluetooth-power.h

+2 −0
Original line number Diff line number Diff line
@@ -69,6 +69,8 @@ struct bluetooth_power_platform_data { 
	struct bt_power_vreg_data *bt_vdd_rfa1;

	/* VDD RFA2 digital voltage regulator */

	struct bt_power_vreg_data *bt_vdd_rfa2;

	/* VDD ASD digital voltage regulator */

	struct bt_power_vreg_data *bt_vdd_asd;

	/* Optional: chip power down gpio-regulator

	 * chip power down data is required when bluetooth module

	 * and other modules like wifi co-exist in a single chip and