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[U-Boot,28/34] imx: ventana: added device-tree display configuration for LVDS displays

Message ID 1428522904-8111-29-git-send-email-tharvey@gateworks.com
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Commit Message

Tim Harvey April 8, 2015, 7:54 p.m. UTC 
Configure kernel device-tree for display from env var. This is useful
to specify the display present when the device-tree supports multiple
non-detectable display configurations.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 board/gateworks/gw_ventana/gw_ventana.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index d8eeb6d..871af09 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -1606,6 +1606,7 @@  int ft_board_setup(void *blob, bd_t *bd)
 		{ "fsl,imx6q-gpmi-nand",  MTD_DEV_TYPE_NAND, }, /* NAND flash */
 	};
 	const char *model = getenv("model");
+	const char *display = getenv("display");
 	int i;
 	char rev = 0;
 
@@ -1626,6 +1627,13 @@  int ft_board_setup(void *blob, bd_t *bd)
 	puts("   Updating MTD partitions...\n");
 	fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 
+	/* Update display timings from display env var */
+	if (display) {
+		if (fdt_fixup_display(blob, fdt_get_alias(blob, "lvds0"),
+				      display) >= 0)
+			printf("   Set display timings for %s...\n", display);
+	}
+
 	if (!model) {
 		puts("invalid board info: Leaving FDT fully enabled\n");
 		return 0;