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disp: msm: implement xxx-hbm-is-51cmd dts entry

Browse source 
Add qcom,mdss-dsi-panel-hbm-is-51cmd to panel's dts to indicate
that the HBM command is using the same backlight command 0x51 command.
Therefore when the HBM is on, then the backlight level will be saved
and backlight command will be ignored. When the HBM is off then stored
backlight level will be set

Port from 9bafa67

Change-Id: I58082c5555a4afbebebd2c1d9e8568c787143d2d
Signed-off-by: Bang Nguyen <bangnguyen@motorola.com>
Signed-off-by: daiss1 <daiss1@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1697612
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 2019-10-28 08:58:24 -05:00 • committed by tongkun1
commit 6ff2674c42
2 changed files with 42 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

40
msm/dsi/dsi_panel.c
View file

@ -573,11 +573,17 @@ static int dsi_panel_update_backlight(struct dsi_panel *panel,
if (panel->bl_config.bl_inverted_dbv)
bl_lvl = (((bl_lvl & 0xff) << 8) | (bl_lvl >> 8));
if (panel->is_hbm_using_51_cmd && panel->is_hbm_on) {
panel->bl_lvl_during_hbm = bl_lvl;
DSI_DEBUG("HBM is on.. ignore setting backlight. bl_vl=%d\n",
panel->bl_lvl_during_hbm);
return 0;
}
if (bl->bl_2bytes_enable){
bl_lvl_2bytes = ((bl_lvl & 0xff00) >> 8) | ((bl_lvl & 0xff) << 8);
rc = mipi_dsi_dcs_set_display_brightness(dsi, bl_lvl_2bytes);
}
else
}else
rc = mipi_dsi_dcs_set_display_brightness(dsi, bl_lvl);
if (rc < 0)
@ -804,11 +810,36 @@ static int dsi_panel_set_hbm(struct dsi_panel *panel,
struct msm_param_info *param_info)
{
int rc = 0;
u32 tmp_bklt_lvl = 0;
bool old_hbm_on;
pr_info("Set HBM to (%d)\n", param_info->value);
rc = dsi_panel_send_param_cmd(panel, param_info);
if (rc < 0)
DSI_ERR("%s: failed to send param cmds. ret=%d\n", __func__, rc);
else {
mutex_lock(&panel->panel_lock);
if (!panel->is_hbm_using_51_cmd) {
mutex_unlock(&panel->panel_lock);
return rc;
}
old_hbm_on = panel->is_hbm_on ;
panel->is_hbm_on = param_info->value;
if (!panel->is_hbm_on) {
tmp_bklt_lvl= panel->bl_lvl_during_hbm;
panel->bl_lvl_during_hbm = 0;
}
mutex_unlock(&panel->panel_lock);
if (param_info->value == 0 && old_hbm_on && tmp_bklt_lvl) {
rc = dsi_panel_set_backlight(panel, tmp_bklt_lvl);
if (rc)
DSI_ERR("unable to set backlight\n");
else
tmp_bklt_lvl = 0;
}
}
return rc;
};
@ -3762,6 +3793,11 @@ static int dsi_panel_parse_param_prop(struct dsi_panel *panel,
panel->panel_hbm_fod = of_property_read_bool(of_node,
"qcom,mdss-dsi-hbm-fod");
panel->is_hbm_using_51_cmd = of_property_read_bool(of_node,
"qcom,mdss-dsi-panel-hbm-is-51cmd");
if (panel->is_hbm_using_51_cmd)
DSI_INFO("HBM command is using 0x51 command\n");
return rc;
parse_err:

5
msm/dsi/dsi_panel.h
View file

@ -314,9 +314,12 @@ struct dsi_panel {
bool no_panel_on_read_support;
bool panel_hbm_fod;
bool panel_hbm_dim_off;
bool is_hbm_using_51_cmd;
bool is_hbm_on;
u32 bl_lvl_during_hbm;
struct panel_param *param_cmds;
};