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Commit 9c0dd1b4 authored by Ritesh Kumar's avatar Ritesh Kumar Committed by Gerrit - the friendly Code Review server
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input: touchscreen: synaptics_tcm: Set power regulator voltage 



This change adds support to vote for 2.8 V voltage level for power
regulator in synaptics_tcm touch driver.

Change-Id: I3094bbf62db5541add7b0934053ed7000e71e14c
Signed-off-by: default avatarRitesh Kumar <riteshk@codeaurora.org>
parent 04301c31

drivers/input/touchscreen/synaptics_tcm/synaptics_tcm_core.c

+20 −1
Original line number Original line Diff line number Diff line
@@ -50,6 +50,10 @@ 




/* #define FORCE_RUN_APPLICATION_FIRMWARE */

/* #define FORCE_RUN_APPLICATION_FIRMWARE */





#define SYNA_VTG_MIN_UV	2800000



#define SYNA_VTG_MAX_UV	3300000



#define NOTIFIER_PRIORITY 2

#define NOTIFIER_PRIORITY 2





#define RESPONSE_TIMEOUT_MS 3000

#define RESPONSE_TIMEOUT_MS 3000
@@ -1920,6 +1924,16 @@ static int syna_tcm_enable_regulator(struct syna_tcm_hcd *tcm_hcd, bool en) 
	}

	}





	if (tcm_hcd->pwr_reg) {

	if (tcm_hcd->pwr_reg) {

		if (regulator_count_voltages(tcm_hcd->pwr_reg) > 0) {

			retval = regulator_set_voltage(tcm_hcd->pwr_reg,

				SYNA_VTG_MIN_UV, SYNA_VTG_MAX_UV);

			if (retval) {

				LOGE(tcm_hcd->pdev->dev.parent,

					"set power regulator voltage failed\n");

				goto disable_bus_reg;

			}

		}



		retval = regulator_enable(tcm_hcd->pwr_reg);

		retval = regulator_enable(tcm_hcd->pwr_reg);

		if (retval < 0) {

		if (retval < 0) {

			LOGE(tcm_hcd->pdev->dev.parent,

			LOGE(tcm_hcd->pdev->dev.parent,
@@ -1932,8 +1946,13 @@ static int syna_tcm_enable_regulator(struct syna_tcm_hcd *tcm_hcd, bool en) 
	return 0;

	return 0;





disable_pwr_reg:

disable_pwr_reg:

	if (tcm_hcd->pwr_reg)

	if (tcm_hcd->pwr_reg) {

		if (regulator_count_voltages(tcm_hcd->pwr_reg) > 0) {

			regulator_set_voltage(tcm_hcd->pwr_reg, 0,

							SYNA_VTG_MAX_UV);

		}

		regulator_disable(tcm_hcd->pwr_reg);

		regulator_disable(tcm_hcd->pwr_reg);

	}





disable_bus_reg:

disable_bus_reg:

	if (tcm_hcd->bus_reg)

	if (tcm_hcd->bus_reg)