The current display class only allow to get timing from edid. So add a operation to get timing directly from driver. In driver, I will use fdtdec_decode_display_timing to get timing.
Signed-off-by: Jacob Chen jacob-chen@iotwrt.com Acked-by: Simon Glass sjg@chromium.org ---
Changes in v3: - None
Changes in v2: - None
drivers/video/display-uclass.c | 3 +++ include/display.h | 11 ++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/video/display-uclass.c b/drivers/video/display-uclass.c index 31522ea..e4763de 100644 --- a/drivers/video/display-uclass.c +++ b/drivers/video/display-uclass.c @@ -36,6 +36,9 @@ int display_read_timing(struct udevice *dev, struct display_timing *timing) u8 buf[EDID_EXT_SIZE]; int ret;
+ if (ops && ops->read_timing) + return ops->read_timing(dev, timing); + if (!ops || !ops->read_edid) return -ENOSYS; ret = ops->read_edid(dev, buf, sizeof(buf)); diff --git a/include/display.h b/include/display.h index c180e76..b1c4766 100644 --- a/include/display.h +++ b/include/display.h @@ -23,7 +23,7 @@ struct display_plat { };
/** - * display_read_timing() - Read timing information from EDID + * display_read_timing() - Read timing information * * @dev: Device to read from * @return 0 if OK, -ve on error @@ -43,6 +43,15 @@ int display_enable(struct udevice *dev, int panel_bpp,
struct dm_display_ops { /** + * read_timing() - Read information directly + * + * @dev: Device to read from + * @timing: Display timings + * @return 0 if OK, -ve on error + */ + int (*read_timing)(struct udevice *dev, struct display_timing *timing); + + /** * read_edid() - Read information from EDID * * @dev: Device to read from