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disp: msm: Correct the panel's LP11_INIT

Browse source 
QCOM has panel's LP11_INIT implementation, but it doesn't meet MOT's
panel spec.

Here is QCOM's implementaion:
- Init the DSI PHY, Turn on panel's POWER, Toggle Reset, and sending
  MIPI commands

Here is MOT's LP11_INIT panel spec:
- Init the DSI PHY ( MIPI lines in LP00), Turn on panel POWER,
  Bring MIPI lines to LP11, Toggle Reset, Sending MIPI commands

Port from: f78d13a

Change-Id: Ia5f7f5be683615ec1811f550dec1967335c9816d
Signed-off-by: Bang Nguyen <bangnguyen@motorola.com>
Reviewed-on: https://gerrit.mot.com/1697591
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Bang Nguyen 2019-05-02 15:40:42 -05:00 • committed by tongkun1
commit e2e955e81c
3 changed files with 40 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

3
msm/dsi/dsi_display.c
View file

@ -8330,7 +8330,8 @@ error_ctrl_clk_off:
(void)dsi_display_clk_ctrl(display->dsi_clk_handle,
DSI_CORE_CLK, DSI_CLK_OFF);
error_panel_post_unprep:
(void)dsi_panel_post_unprepare(display->panel);
if (!display->is_cont_splash_enabled)
(void)dsi_panel_post_unprepare(display->panel);
error:
mutex_unlock(&display->display_lock);
SDE_EVT32(SDE_EVTLOG_FUNC_EXIT);

64
msm/dsi/dsi_panel.c
View file

@ -264,12 +264,13 @@ int dsi_panel_trigger_esd_attack(struct dsi_panel *panel, bool trusted_vm_env)
return 0;
}
static int dsi_panel_reset(struct dsi_panel *panel)
int dsi_panel_reset(struct dsi_panel *panel)
{
int rc = 0;
struct dsi_panel_reset_config *r_config = &panel->reset_config;
int i;
DSI_DEBUG("++\n");
if (gpio_is_valid(panel->reset_config.disp_en_gpio)) {
rc = gpio_direction_output(panel->reset_config.disp_en_gpio, 1);
if (rc) {
@ -376,23 +377,8 @@ static int dsi_panel_power_on(struct dsi_panel *panel)
goto error_disable_vregs;
}
rc = dsi_panel_reset(panel);
if (rc) {
DSI_ERR("[%s] failed to reset panel, rc=%d\n", panel->name, rc);
goto error_disable_gpio;
}
goto exit;
error_disable_gpio:
if (gpio_is_valid(panel->reset_config.disp_en_gpio))
gpio_set_value(panel->reset_config.disp_en_gpio, 0);
if (gpio_is_valid(panel->bl_config.en_gpio))
gpio_set_value(panel->bl_config.en_gpio, 0);
(void)dsi_panel_set_pinctrl_state(panel, false);
error_disable_vregs:
(void)dsi_pwr_enable_regulator(&panel->power_info, false);
@ -4587,14 +4573,17 @@ int dsi_panel_pre_prepare(struct dsi_panel *panel)
mutex_lock(&panel->panel_lock);
/* If LP11_INIT is set, panel will be powered up during prepare() */
if (panel->lp11_init)
goto error;
rc = dsi_panel_power_on(panel);
if (rc) {
DSI_ERR("[%s] panel power on failed, rc=%d\n", panel->name, rc);
goto error;
/*
* If LP11_INIT is set, panel will be powered up here, not during
* prepare(), but panel's reset will be called later, in prepare call.
*/
if (panel->lp11_init) {
rc = dsi_panel_power_on(panel);
if (rc) {
DSI_ERR("[%s] panel power on failed, rc=%d\n",
panel->name, rc);
goto error;
}
}
error:
@ -4749,23 +4738,42 @@ int dsi_panel_prepare(struct dsi_panel *panel)
mutex_lock(&panel->panel_lock);
if (panel->lp11_init) {
/* If LP11_INIT is not set, then panel will be powered here */
if (!panel->lp11_init) {
rc = dsi_panel_power_on(panel);
if (rc) {
DSI_ERR("[%s] panel power on failed, rc=%d\n",
panel->name, rc);
goto error;
goto end;
}
}
rc = dsi_panel_reset(panel);
if (rc) {
DSI_ERR("[%s] panel reset failed, rc=%d\n", panel->name, rc);
goto error_disable_gpio;
}
rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_PRE_ON);
if (rc) {
DSI_ERR("[%s] failed to send DSI_CMD_SET_PRE_ON cmds, rc=%d\n",
panel->name, rc);
goto error;
goto error_disable_gpio;
}
error:
goto end;
error_disable_gpio:
if (gpio_is_valid(panel->reset_config.disp_en_gpio))
gpio_set_value(panel->reset_config.disp_en_gpio, 0);
if (gpio_is_valid(panel->bl_config.en_gpio))
gpio_set_value(panel->bl_config.en_gpio, 0);
if (!panel->lp11_init) {
(void)dsi_panel_set_pinctrl_state(panel, false);
(void)dsi_pwr_enable_regulator(&panel->power_info, false);
}
end:
mutex_unlock(&panel->panel_lock);
return rc;
}

2
msm/dsi/dsi_panel.h
View file

@ -386,6 +386,8 @@ int dsi_panel_set_nolp(struct dsi_panel *panel);
int dsi_panel_prepare(struct dsi_panel *panel);
int dsi_panel_reset(struct dsi_panel *panel);
int dsi_panel_enable(struct dsi_panel *panel);
int dsi_panel_post_enable(struct dsi_panel *panel);