drm: mipi: disable Elvss dim of HBM for MIPI DSI

Added 3 MIPI commands to set/get the ELVSS setting information from
the MIPI DSI panel.

Port from a5b269d7.

Change-Id: I3aa1612c7afc35247f0db86ee1dd8484bae8d7b4
Signed-off-by: daiss1 <daiss1@motorola.com>
Reviewed-on: https://gerrit.mot.com/1469340
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
Reviewed-by: Bang Nguyen <bangnguyen@motorola.com>
Reviewed-by: Dezhen Hou <houdz1@motorola.com>
Reviewed-on: https://gerrit.mot.com/1509787
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>

drivers/gpu/drm/drm_mipi_dsi.c

@@ -1176,6 +1176,59 @@ int mipi_dsi_driver_register_full(struct mipi_dsi_driver *drv,
 }
 EXPORT_SYMBOL(mipi_dsi_driver_register_full);
 
+int mipi_dsi_dcs_get_elvss_data(struct mipi_dsi_device *dsi)
+{
+            u8 payload_f0[2] = { 0x5A, 0x5A };
+            u8 payload_b0 = 0x07;
+            ssize_t err;
+
+            err = mipi_dsi_dcs_write(dsi, 0xF0, payload_f0, sizeof(payload_f0));
+            err = mipi_dsi_dcs_write(dsi, 0xB0, &payload_b0, sizeof(payload_b0));
+
+            if (err < 0)
+                        return err;
+
+            return 0;
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_get_elvss_data);
+
+int mipi_dsi_dcs_get_elvss_data_1(struct mipi_dsi_device *dsi)
+{
+            u8 payload_f0_1[2] = { 0xA5, 0xA5 };
+            ssize_t err;
+            err = mipi_dsi_dcs_write(dsi, 0xF0, payload_f0_1, sizeof(payload_f0_1));
+
+            if (err < 0)
+                        return err;
+
+            return 0;
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_get_elvss_data_1);
+
+int mipi_dsi_dcs_set_elvss_dim_off(struct mipi_dsi_device *dsi,
+                                                            u8 val)
+{
+            u8 payload_f0[2] = { 0x5A, 0x5A };
+            u8 payload_f0_1[2] = { 0xA5, 0xA5 };
+            u8 payload_b7[2] = { 0x01, 0x5B };
+            u8 payload_b0 = 0x07;
+            ssize_t err;
+
+            pr_info("set elvss data:%d\n", val);
+
+            err = mipi_dsi_dcs_write(dsi, 0xF0, payload_f0, sizeof(payload_f0));
+            err = mipi_dsi_dcs_write(dsi, 0xB7, payload_b7, sizeof(payload_b7));
+            err = mipi_dsi_dcs_write(dsi, 0xB0, &payload_b0, sizeof(payload_b0));
+            err = mipi_dsi_dcs_write(dsi, 0xB7, &val, sizeof(val));
+            err = mipi_dsi_dcs_write(dsi, 0xF0, payload_f0_1, sizeof(payload_f0_1));
+
+            if (err < 0)
+                      return err;
+
+            return 0;
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_elvss_dim_off);
+
 /**
  * mipi_dsi_driver_unregister() - unregister a driver for DSI devices
  * @drv: DSI driver structure

include/drm/drm_mipi_dsi.h

@@ -322,6 +322,10 @@ static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
 	dev_set_drvdata(&dsi->dev, data);
 }
 
+int mipi_dsi_dcs_get_elvss_data(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_get_elvss_data_1(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_elvss_dim_off(struct mipi_dsi_device *dsi, u8 val);
+
 int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
 				  struct module *owner);
 void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);