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Commit c810238f authored by Yuan Zhao's avatar Yuan Zhao Committed by Gerrit - the friendly Code Review server
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disp: msm: dsi: support LP mode for DCS brightness setting 



DCS brightness settng can only use HS mode. Add a new
DT property for LP mode choose for DCS brightness setting.

Change-Id: Ibe5867fe344776871eb3a410a8d79d347775f3d4
Signed-off-by: default avatarYuan Zhao <yzhao@codeaurora.org>
parent f11da41a

msm/dsi/dsi_display.c

+13 −2
Original line number Diff line number Diff line
@@ -8021,7 +8021,8 @@ static void dsi_display_handle_poms_te(struct work_struct *work) 
{

	struct dsi_display *display = NULL;

	struct delayed_work *dw = to_delayed_work(work);

	struct mipi_dsi_device *dsi;

	struct mipi_dsi_device *dsi = NULL;

	struct dsi_panel *panel = NULL;

	int rc = 0;



	display = container_of(dw, struct dsi_display, poms_te_work);
@@ -8030,8 +8031,18 @@ static void dsi_display_handle_poms_te(struct work_struct *work) 
		return;

	}



	dsi = &display->panel->mipi_device;

	panel = display->panel;

	mutex_lock(&panel->panel_lock);

	if (!dsi_panel_initialized(panel)) {

		rc = -EINVAL;

		goto error;

	}



	dsi = &panel->mipi_device;

	rc = mipi_dsi_dcs_set_tear_off(dsi);



error:

	mutex_unlock(&panel->panel_lock);

	if (rc < 0)

		DSI_ERR("failed to set tear off\n");

}

msm/dsi/dsi_panel.c

+22 −4
Original line number Diff line number Diff line
@@ -509,7 +509,8 @@ static int dsi_panel_update_backlight(struct dsi_panel *panel, 
	u32 bl_lvl)

{

	int rc = 0;

	struct mipi_dsi_device *dsi;

	unsigned long mode_flags = 0;

	struct mipi_dsi_device *dsi = NULL;



	if (!panel || (bl_lvl > 0xffff)) {

		DSI_ERR("invalid params\n");
@@ -517,6 +518,10 @@ static int dsi_panel_update_backlight(struct dsi_panel *panel, 
	}



	dsi = &panel->mipi_device;

	if (unlikely(panel->bl_config.lp_mode)) {

		mode_flags = dsi->mode_flags;

		dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	}



	if (panel->bl_config.bl_inverted_dbv)

		bl_lvl = (((bl_lvl & 0xff) << 8) | (bl_lvl >> 8));
@@ -525,6 +530,9 @@ static int dsi_panel_update_backlight(struct dsi_panel *panel, 
	if (rc < 0)

		DSI_ERR("failed to update dcs backlight:%d\n", bl_lvl);



	if (unlikely(panel->bl_config.lp_mode))

		dsi->mode_flags = mode_flags;



	return rc;

}
@@ -2144,10 +2152,11 @@ static int dsi_panel_parse_bl_config(struct dsi_panel *panel) 
{

	int rc = 0;

	u32 val = 0;

	const char *bl_type;

	const char *data;

	const char *bl_type = NULL;

	const char *data = NULL;

	const char *state = NULL;

	struct dsi_parser_utils *utils = &panel->utils;

	char *bl_name;

	char *bl_name = NULL;



	if (!strcmp(panel->type, "primary"))

		bl_name = "qcom,mdss-dsi-bl-pmic-control-type";
@@ -2217,6 +2226,15 @@ static int dsi_panel_parse_bl_config(struct dsi_panel *panel) 
	panel->bl_config.bl_inverted_dbv = utils->read_bool(utils->data,

		"qcom,mdss-dsi-bl-inverted-dbv");



	state = utils->get_property(utils->data, "qcom,bl-dsc-cmd-state", NULL);

	if (!state || !strcmp(state, "dsi_hs_mode"))

		panel->bl_config.lp_mode = false;

	else if (!strcmp(state, "dsi_lp_mode"))

		panel->bl_config.lp_mode = true;

	else

		DSI_ERR("bl-dsc-cmd-state command state unrecognized-%s\n",

			state);



	if (panel->bl_config.type == DSI_BACKLIGHT_PWM) {

		rc = dsi_panel_parse_bl_pwm_config(panel);

		if (rc) {

msm/dsi/dsi_panel.h

+3 −0
Original line number Diff line number Diff line
@@ -128,6 +128,9 @@ struct dsi_backlight_config { 
	/* WLED params */

	struct led_trigger *wled;

	struct backlight_device *raw_bd;



	/* DCS params */

	bool lp_mode;

};



struct dsi_reset_seq {