Hi Christian, Andy,
Am Donnerstag, 4. Januar 2024, 15:39:50 CET schrieb Cristian Ciocaltea:
> Commit 5a028e8f062f ("drm/rockchip: vop2: Add support for rk3588")
> introduced a variable which ended up being unused. Remove it.
>
> rockchip_drm_vop2.c:1688:23: warning: variable ‘if_dclk_rate’ set but not used [-Wunused-but-set-variable]
>
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
in general, please don't send non-series patches as replies to other patches.
It confuses tooling like b4 way too often, as this patch is not designated
as a 2/2 (similar to the first one not being 1/2).
> ---
> drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
> index 44508c2dd614..923985d4161b 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
> @@ -1685,7 +1685,6 @@ static unsigned long rk3588_calc_cru_cfg(struct vop2_video_port *vp, int id,
> unsigned long dclk_core_rate = v_pixclk >> 2;
> unsigned long dclk_rate = v_pixclk;
> unsigned long dclk_out_rate;
> - unsigned long if_dclk_rate;
> unsigned long if_pixclk_rate;
> int K = 1;
>
> @@ -1700,7 +1699,6 @@ static unsigned long rk3588_calc_cru_cfg(struct vop2_video_port *vp, int id,
> }
>
> if_pixclk_rate = (dclk_core_rate << 1) / K;
> - if_dclk_rate = dclk_core_rate / K;
> /*
> * *if_pixclk_div = dclk_rate / if_pixclk_rate;
> * *if_dclk_div = dclk_rate / if_dclk_rate;
> */
*if_pixclk_div = 2;
*if_dclk_div = 4;
with the code continuing with those static constants but the comment
showing a forumula, I do hope Andy can provide a bit of insight into
what is happening here.
I.e. I'd really like to understand if that really is just a remnant or
something different is needed.
Heiko
