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Commit c5f211a9 authored by Bala Kishore Pati's avatar Bala Kishore Pati Committed by Gerrit - the friendly Code Review server
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ASoC: msm: msm_bg: add support to turn on regulator 



Changes to vote for turn on the regulator on boot up
for speaker audio.

Change-Id: I4f030433a00caaaf05eccbee97ad4105909b1f5c
Signed-off-by: default avatarBala Kishore Pati <balakishorepati@codeaurora.org>
parent 1beea581

Documentation/devicetree/bindings/sound/qcom-audio-dev.txt

+1 −0
Original line number Diff line number Diff line
@@ -2106,6 +2106,7 @@ Optional properties: 
- asoc-codec-names: This property contains list of codec dai names. The order of the

		codec dai names should match to that of the phandle order given

		in "asoc-codec".

- vdd-spkr-supply: BG codec supply's speaker regulator device tree node.



Example:

	sound {

sound/soc/msm/msm_bg.c

+32 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/module.h>

#include <linux/workqueue.h>

#include <linux/input.h>

#include <linux/regulator/consumer.h>

#include <sound/core.h>

#include <sound/soc.h>

#include <sound/soc-dapm.h>
@@ -33,6 +34,8 @@ 


#define DRV_NAME "msm-bg-asoc-wcd"



#define SPEAK_VREG_NAME "vdd-spkr"



#define BTSCO_RATE_8KHZ 8000

#define BTSCO_RATE_16KHZ 16000
@@ -143,6 +146,7 @@ struct msm8916_asoc_mach_data { 
	void __iomem *vaddr_gpio_mux_pcm_ctl;

	void __iomem *vaddr_gpio_mux_sec_pcm_ctl;

	struct device_node *pri_mi2s_gpio_p;

	struct regulator *spkr_vreg;

};



static inline int param_is_mask(int p)
@@ -2157,7 +2161,35 @@ static int msm_bg_asoc_machine_probe(struct platform_device *pdev) 
			ret);

		goto err;

	}

	if (of_get_property(

		pdev->dev.of_node,

		SPEAK_VREG_NAME "-supply", NULL)) {

		pdata->spkr_vreg = regulator_get(&pdev->dev, SPEAK_VREG_NAME);

		if (IS_ERR(pdata->spkr_vreg)) {

			ret = PTR_ERR(pdata->spkr_vreg);

			pr_err("VDD-speaker get failed error=%d\n", ret);

			goto err;

		}



		ret = regulator_set_voltage(

			pdata->spkr_vreg, 1800000, 1800000);

		if (ret) {

			pr_err("VDD-speaker set voltage failed error=%d\n",

					 ret);

			goto err_vreg_regulator;

		} else {

			ret = regulator_enable(pdata->spkr_vreg);

			if (ret) {

				pr_err("VDD-speaker voltage enable\n"

					 "\nfailed error=%d\n", ret);

				goto err_vreg_regulator;

			}

		}

	}

	return 0;



err_vreg_regulator:

	regulator_put(pdata->spkr_vreg);

err:

	if (pdata->vaddr_gpio_mux_spkr_ctl)

		iounmap(pdata->vaddr_gpio_mux_spkr_ctl);