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Commit e3424273 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Lee Jones
Browse files

mfd: arizona: Factor out checking of jack detection state 



Currently runtime_suspend will fully power off the codec if
the jack detection is not enabled. Not all future codecs will
have jack detection so to prepare for these codecs this patch
factors out the check so that it be called as needed in the
existing codec-specific switch cases.

Signed-off-by: default avatarRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent e7811147

drivers/mfd/arizona-core.c

+32 −9
Original line number Diff line number Diff line
@@ -487,6 +487,23 @@ static int arizona_connect_dcvdd(struct arizona *arizona) 
	return ret;

}



static int arizona_is_jack_det_active(struct arizona *arizona)

{

	unsigned int val;

	int ret;



	ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);

	if (ret) {

		dev_err(arizona->dev,

			"Failed to check jack det status: %d\n", ret);

		return ret;

	} else if (val & ARIZONA_JD1_ENA) {

		return 1;

	} else {

		return 0;

	}

}



static int arizona_runtime_resume(struct device *dev)

{

	struct arizona *arizona = dev_get_drvdata(dev);
@@ -610,20 +627,18 @@ err: 
static int arizona_runtime_suspend(struct device *dev)

{

	struct arizona *arizona = dev_get_drvdata(dev);

	unsigned int val;

	unsigned int jd_active = 0;

	int ret;



	dev_dbg(arizona->dev, "Entering AoD mode\n");



	ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);

	if (ret) {

		dev_err(dev, "Failed to check jack det status: %d\n", ret);

		return ret;

	}



	switch (arizona->type) {

	case WM5110:

	case WM8280:

		jd_active = arizona_is_jack_det_active(arizona);

		if (jd_active < 0)

			return jd_active;



		if (arizona->external_dcvdd) {

			ret = arizona_isolate_dcvdd(arizona);

			if (ret != 0)
@@ -645,13 +660,17 @@ static int arizona_runtime_suspend(struct device *dev) 
		}

		break;

	case WM5102:

		jd_active = arizona_is_jack_det_active(arizona);

		if (jd_active < 0)

			return jd_active;



		if (arizona->external_dcvdd) {

			ret = arizona_isolate_dcvdd(arizona);

			if (ret != 0)

				return ret;

		}



		if (!(val & ARIZONA_JD1_ENA)) {

		if (!jd_active) {

			ret = regmap_write(arizona->regmap,

					   ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);

			if (ret) {
@@ -663,6 +682,10 @@ static int arizona_runtime_suspend(struct device *dev) 
		}

		break;

	default:

		jd_active = arizona_is_jack_det_active(arizona);

		if (jd_active < 0)

			return jd_active;



		if (arizona->external_dcvdd) {

			ret = arizona_isolate_dcvdd(arizona);

			if (ret != 0)
@@ -676,7 +699,7 @@ static int arizona_runtime_suspend(struct device *dev) 
	regulator_disable(arizona->dcvdd);



	/* Allow us to completely power down if no jack detection */

	if (!(val & ARIZONA_JD1_ENA)) {

	if (!jd_active) {

		dev_dbg(arizona->dev, "Fully powering off\n");



		arizona->has_fully_powered_off = true;