linux-kernel - [PATCH v2 2/5] drm/rockchip: vop2: Drop unnecessary if_pixclk

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Message-Id: <20241211-vop2-hdmi0-disp-modes-v2-2-471cf5001e45@collabora.com>
Date: Wed, 11 Dec 2024 12:15:06 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/5] drm/rockchip: vop2: Drop unnecessary if_pixclk_rate
 computation

The if_pixclk_rate variable is not being used outside of the if-block in
rk3588_calc_cru_cfg(), hence move the superfluous assignment from the
first branch to the inner comment-block.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 9873172e3fd331f4457fb70c5416dad7af9e3536..8b2f53ffefdbf1cc8737b3a86e630a03a7fd9348 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1695,8 +1695,8 @@ static unsigned long rk3588_calc_cru_cfg(struct vop2_video_port *vp, int id,
 			K = 2;
 		}
 
-		if_pixclk_rate = (dclk_core_rate << 1) / K;
 		/*
+		 * 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;

-- 
2.47.0