[PATCH v1 11/12] video: panel: lq101r1sx01: remove unnecessary setup

[Svyatoslav Ryhel]

Left-right split is enabled only by sending 0x1000 to
MIPI_DCS_SET_COLUMN_ADDRESS (0x2a) and does not require any other
manipulations. sharp_setup_symmetrical_split function is left as
a reference for possible even-odd split implementation or video
mode support where commands have to be sent to both links.

Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
 drivers/video/sharp-lq101r1sx01.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/video/sharp-lq101r1sx01.c b/drivers/video/sharp-lq101r1sx01.c
index 5d8453fd796..504122abda6 100644
--- a/drivers/video/sharp-lq101r1sx01.c
+++ b/drivers/video/sharp-lq101r1sx01.c
@@ -57,9 +57,10 @@ static int sharp_lq101r1sx01_write(struct mipi_dsi_device *dsi,
 	return 0;
 }
 
-static int sharp_setup_symmetrical_split(struct mipi_dsi_device *left,
-					 struct mipi_dsi_device *right,
-					 struct display_timing *timing)
+static int __maybe_unused
+sharp_setup_symmetrical_split(struct mipi_dsi_device *left,
+			      struct mipi_dsi_device *right,
+			      struct display_timing *timing)
 {
 	int ret;
 
@@ -104,9 +105,7 @@ static int sharp_lq101r1sx01_enable_backlight(struct udevice *dev)
 		return 0;
 
 	struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
-	struct mipi_dsi_panel_plat *plat_sec = dev_get_plat(priv->panel_sec);
 	struct mipi_dsi_device *link1 = plat->device;
-	struct mipi_dsi_device *link2 = plat_sec->device;
 	int ret;
 
 	ret = mipi_dsi_dcs_exit_sleep_mode(link1);
@@ -142,16 +141,17 @@ static int sharp_lq101r1sx01_enable_backlight(struct udevice *dev)
 	/*
 	 * TODO: The device supports both left-right and even-odd split
 	 * configurations, but this driver currently supports only the left-
-	 * right split. To support a different mode a mechanism needs to be
-	 * put in place to communicate the configuration back to the DSI host
-	 * controller.
+	 * right split in command mode. To support a different mode a
+	 * mechanism needs to be put in place to communicate the
+	 * configuration back to the DSI host controller.
+	 *
+	 * Left-right split is enabled only by sending 0x1000 to
+	 * MIPI_DCS_SET_COLUMN_ADDRESS (0x2a) and does not require any
+	 * other manipulations. sharp_setup_symmetrical_split function is
+	 * left as a reference for possible even-odd split implementation
+	 * or video mode support where commands have to be sent to both
+	 * links.
 	 */
-	ret = sharp_setup_symmetrical_split(link1, link2, &default_timing);
-	if (ret < 0) {
-		log_debug("%s: failed to set up symmetrical split: %d\n",
-			  __func__, ret);
-		return ret;
-	}
 
 	ret = mipi_dsi_dcs_set_display_on(link1);
 	if (ret < 0) {
-- 
2.43.0