drm/panel: himax-hx83102: Adjust power and gamma to optimize brightness

The current panel brightness is only 360 nit. Adjust the power and gamma to
optimize the panel brightness. The brightness after adjustment is 390 nit.

Fixes: 3179338 ("drm/panel: himax-hx83102: Support for IVO t109nw41 MIPI-DSI panel")
Signed-off-by: Cong Yang <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Signed-off-by: Douglas Anderson <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011020819.1254157-1-yangcong5@huaqin.corp-partner.google.com

Author: Cong Yang

drivers/gpu/drm/panel/panel-himax-hx83102.c

@@ -298,7 +298,7 @@ static int ivo_t109nw41_init(struct hx83102 *ctx)
 	msleep(60);
 
 	hx83102_enable_extended_cmds(&dsi_ctx, true);
-	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPOWER, 0x2c, 0xed, 0xed, 0x0f, 0xcf, 0x42,
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPOWER, 0x2c, 0xed, 0xed, 0x27, 0xe7, 0x52,
 				     0xf5, 0x39, 0x36, 0x36, 0x36, 0x36, 0x32, 0x8b, 0x11, 0x65, 0x00, 0x88,
 				     0xfa, 0xff, 0xff, 0x8f, 0xff, 0x08, 0xd6, 0x33);
 	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDISP, 0x00, 0x47, 0xb0, 0x80, 0x00, 0x12,
@@ -343,11 +343,11 @@ static int ivo_t109nw41_init(struct hx83102 *ctx)
 				     0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
-	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGMA, 0x04, 0x04, 0x06, 0x0a, 0x0a, 0x05,
-				     0x12, 0x14, 0x17, 0x13, 0x2c, 0x33, 0x39, 0x4b, 0x4c, 0x56, 0x61, 0x78,
-				     0x7a, 0x41, 0x50, 0x68, 0x73, 0x04, 0x04, 0x06, 0x0a, 0x0a, 0x05, 0x12,
-				     0x14, 0x17, 0x13, 0x2c, 0x33, 0x39, 0x4b, 0x4c, 0x56, 0x61, 0x78, 0x7a,
-				     0x41, 0x50, 0x68, 0x73);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGMA, 0x00, 0x07, 0x10, 0x17, 0x1c, 0x33,
+				     0x48, 0x50, 0x57, 0x50, 0x68, 0x6e, 0x71, 0x7f, 0x81, 0x8a, 0x8e, 0x9b,
+				     0x9c, 0x4d, 0x56, 0x5d, 0x73, 0x00, 0x07, 0x10, 0x17, 0x1c, 0x33, 0x48,
+				     0x50, 0x57, 0x50, 0x68, 0x6e, 0x71, 0x7f, 0x81, 0x8a, 0x8e, 0x9b, 0x9c,
+				     0x4d, 0x56, 0x5d, 0x73);
 	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETTP1, 0x07, 0x10, 0x10, 0x1a, 0x26, 0x9e,
 				     0x00, 0x4f, 0xa0, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x12, 0x0a, 0x02,
 				     0x02, 0x00, 0x33, 0x02, 0x04, 0x18, 0x01);