display: add a simple api to query the display state (on/off) at any point in time (5dd78794) · Commits · e / devices / samsung / android_kernel_samsung_msm8916

drivers/video/msm/mdss/mdss_dsi_panel.c

+13 −1

Original line number	Diff line number	Diff line
		@@ -21,7 +21,7 @@
		#include <linux/leds.h>
		#include <linux/qpnp/pwm.h>
		#include <linux/err.h>

		#include <linux/display_state.h>
		#include "mdss_dsi.h"
		#include "mdss_livedisplay.h"

		@@ -48,6 +48,13 @@

		DEFINE_LED_TRIGGER(bl_led_trigger);

		bool display_on = true;

		bool is_display_on()
		{
		return display_on;
		}

		void mdss_dsi_panel_pwm_cfg(struct mdss_dsi_ctrl_pdata *ctrl)
		{
		if (ctrl->pwm_pmi)
		@@ -733,6 +740,9 @@ static int mdss_dsi_panel_on(struct mdss_panel_data *pdata)
		return -EINVAL;
		}


		display_on = true;

		pinfo = &pdata->panel_info;
		ctrl = container_of(pdata, struct mdss_dsi_ctrl_pdata,
		panel_data);
		@@ -857,6 +867,8 @@ static int mdss_dsi_panel_off(struct mdss_panel_data *pdata)
		mdss_samsung_panel_off_post(pdata);
		#endif

		display_on = false;

		end:
		pinfo->blank_state = MDSS_PANEL_BLANK_BLANK;
		pr_debug("%s:-\n", __func__);

0 → 100644

+17 −0

Original line number	Diff line number	Diff line
		/*
		* include/linux/display_state.h
		*
		* Copyright (c) 2016 Francisco Franco
		* franciscofranco.1990@gmail.com
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#ifndef _LINUX_DISPLAY_STATE_H
		#define _LINUX_DISPLAY_STATE_H

		bool is_display_on(void);

		#endif