diff mbox series

[v2] drm/rockchip: vop2: Drop unused if_dclk_rate variable

Message ID 20240105174007.98054-1-cristian.ciocaltea@collabora.com (mailing list archive)
State New, archived
Headers show
Series [v2] drm/rockchip: vop2: Drop unused if_dclk_rate variable | expand

Commit Message

Cristian Ciocaltea Jan. 5, 2024, 5:40 p.m. UTC
Commit 5a028e8f062f ("drm/rockchip: vop2: Add support for rk3588")
introduced a variable which ended up being unused:

rockchip_drm_vop2.c:1688:23: warning: variable ‘if_dclk_rate’ set but not used [-Wunused-but-set-variable]

This has been initially used as part of a formula to compute the clock
dividers, but eventually it has been replaced by static values.

Drop the variable declaration and move its assignment to the comment
block, to serve as documentation of how the constants have been
generated.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
Changes in v2:
 - Move variable assignment to comment block, per Heiko's review
 - Update commit message

 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Heiko Stübner Jan. 5, 2024, 8:37 p.m. UTC | #1
On Fri, 5 Jan 2024 19:40:06 +0200, Cristian Ciocaltea wrote:
> Commit 5a028e8f062f ("drm/rockchip: vop2: Add support for rk3588")
> introduced a variable which ended up being unused:
> 
> rockchip_drm_vop2.c:1688:23: warning: variable ‘if_dclk_rate’ set but not used [-Wunused-but-set-variable]
> 
> This has been initially used as part of a formula to compute the clock
> dividers, but eventually it has been replaced by static values.
> 
> [...]

Applied, thanks!

[1/1] drm/rockchip: vop2: Drop unused if_dclk_rate variable
      commit: 196da3f3f76a46905f7daab29c56974f1aba9a7a

Best regards,
diff mbox series

Patch

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 89afeadd0bad..b7b44b69cc8c 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1684,7 +1684,6 @@  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;
 
@@ -1699,8 +1698,8 @@  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_dclk_rate = dclk_core_rate / K;
 		 * *if_pixclk_div = dclk_rate / if_pixclk_rate;
 		 * *if_dclk_div = dclk_rate / if_dclk_rate;
 		 */