[PATCHv2 1/3] drm/imx: imx-ldb: honor 'native-mode' property when selecting video mode from DT

Lothar Waßmann
2016-05-24T06:32:12Z

This patch allows to select a specific video mode from a list of modes
defined in DT by setting the 'native-mode' property appropriately.

This change does not affect the behaviour of existing platforms, since
they either:
- have just one display-timings subnode
- have the native-mode property pointing to the first entry
- let the bootloader select the appropriate timing

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
---
drivers/gpu/drm/imx/imx-ldb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index a58eee5..b2dc4df 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -25,6 +25,7 @@
#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
+#include <video/of_display_timing.h>
#include <video/of_videomode.h>
#include <linux/regmap.h>
#include <linux/videodev2.h>
@@ -600,7 +601,8 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data)
channel->edid = kmemdup(edidp, channel->edid_len,
GFP_KERNEL);
} else if (!channel->panel) {
- ret = of_get_drm_display_mode(child, &channel->mode, 0);
+ ret = of_get_drm_display_mode(child, &channel->mode,
+ OF_USE_NATIVE_MODE);
if (!ret)
channel->mode_valid = 1;
}
--
2.1.4