On 14.12.2022 00:22, Marijn Suijten wrote:
> According to downstream /and the comment copied from it/ this comparison
> should be the other way around. In other words, when the panel driver
> requests to use more slices per packet than what could be sent over this
> interface, it is bumped down to only use a single slice per packet (and
> strangely not the number of slices that could fit on the interface).
>
> Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration")
> ---
Missing s-o-b
> drivers/gpu/drm/msm/dsi/dsi_host.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 0686c35a6fd4..9bdfa0864cdf 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -855,11 +855,11 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
> */
> slice_per_intf = DIV_ROUND_UP(hdisplay, dsc->slice_width);
>
> - /* If slice_per_pkt is greater than slice_per_intf
> + /* If slice_count is greater than slice_per_intf
> * then default to 1. This can happen during partial
> * update.
> */
> - if (slice_per_intf > dsc->slice_count)
> + if (dsc->slice_count > slice_per_intf)
> dsc->slice_count = 1;
>
> total_bytes_per_intf = dsc->slice_chunk_size * slice_per_intf;
