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Commit 1e20848d authored by osaisruj's avatar osaisruj
Browse files

disp: msm: add support for twm entry 



Skip backlight updates and panel off commands
during twm entry.

Change-Id: I7656fa0d513a8a3e82d9bbbf5c3f85c1b84ee9da
Signed-off-by: default avatarosaisruj <osaisruj@codeaurora.org>
parent 05ccf7d2

msm/dsi/dsi_panel.c

+12 −0
Original line number Diff line number Diff line
@@ -378,6 +378,10 @@ static int dsi_panel_power_off(struct dsi_panel *panel) 
{

	int rc = 0;



	if (panel->is_twm_en) {

		DSI_DEBUG("TWM Enabled, skip panel power off\n");

		return rc;

	}

	if (gpio_is_valid(panel->reset_config.disp_en_gpio))

		gpio_set_value(panel->reset_config.disp_en_gpio, 0);
@@ -4305,6 +4309,10 @@ int dsi_panel_set_nolp(struct dsi_panel *panel) 
		return -EINVAL;

	}



	if (panel->is_twm_en) {

		DSI_DEBUG("TWM Enabled, skip idle off\n");

		return rc;

	}

	mutex_lock(&panel->panel_lock);

	if (!panel->panel_initialized)

		goto exit;
@@ -4717,6 +4725,10 @@ int dsi_panel_disable(struct dsi_panel *panel) 
		return -EINVAL;

	}



	if (panel->is_twm_en) {

		DSI_DEBUG("TWM Enabled, skip panel disable\n");

		return rc;

	}

	mutex_lock(&panel->panel_lock);



	/* Avoid sending panel off commands when ESD recovery is underway */

msm/dsi/dsi_panel.h

+2 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2020, 2021 The Linux Foundation. All rights reserved.

 */



#ifndef _DSI_PANEL_H_
@@ -244,6 +244,7 @@ struct dsi_panel { 
	bool reset_gpio_always_on;

	atomic_t esd_recovery_pending;



	bool is_twm_en;

	bool panel_initialized;

	bool te_using_watchdog_timer;

	struct dsi_qsync_capabilities qsync_caps;

msm/sde/sde_connector.c

+5 −2
Original line number Diff line number Diff line
@@ -2865,18 +2865,21 @@ static ssize_t twm_enable_store(struct device *device, 
{

	struct drm_connector *conn;

	struct sde_connector *sde_conn;

	struct dsi_display *dsi_display;

	int rc;

	int data;



	conn = dev_get_drvdata(device);

	sde_conn = to_sde_connector(conn);



	dsi_display = (struct dsi_display *) sde_conn->display;

	rc = kstrtoint(buf, 10, &data);

	if (rc) {

		SDE_ERROR("kstrtoint failed, rc = %d\n", rc);

		return -EINVAL;

	}

	sde_conn->twm_en = data ? true : false;

	dsi_display->panel->is_twm_en = sde_conn->twm_en;

	sde_conn->allow_bl_update = data ? false : true;

	SDE_DEBUG("TWM: %s\n", sde_conn->twm_en ? "ENABLED" : "DISABLED");

	return count;

}