Some framebuffers (i.e MediaTek) do not have regular stride - its line length is more than the display width by 8 pixels (on MT6878). As such, introduce the optional stride property, which fixes these framebuffers.
Signed-off-by: Igor Belwon <[email protected]> --- drivers/video/simplefb.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c index 239b006744d8deed758da95f9c41c0d59dbb48d1..8d0772d4e51ebba3d8a66cd35ae2660d3ac859c1 100644 --- a/drivers/video/simplefb.c +++ b/drivers/video/simplefb.c @@ -19,7 +19,7 @@ static int simple_video_probe(struct udevice *dev) int ret; fdt_addr_t base; fdt_size_t size; - u32 width, height, rot; + u32 width, height, stride, rot; base = dev_read_addr_size(dev, &size); if (base == FDT_ADDR_T_NONE) { @@ -52,6 +52,11 @@ static int simple_video_probe(struct udevice *dev) uc_priv->xsize = width; uc_priv->ysize = height; + /* Optional - in most cases, auto-calculation works */ + ret = ofnode_read_u32(node, "stride", &stride); + if (!ret || stride) + uc_priv->line_length = stride; + format = ofnode_read_string(node, "format"); debug("%s: %dx%d@%s\n", __func__, uc_priv->xsize, uc_priv->ysize, format); --- base-commit: c9fdb9ac4d5234953ffaaef0cfc9d4ccb03f0ce5 change-id: 20251104-sfb-stride-397926b1069d Best regards, -- Igor Belwon <[email protected]>
