linux-kernel - [PATCH 1/2] drm/rockchip: vop2: fix rk3588 dp+dsi maxclk verification

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Message-Id: <20240425195506.2935955-2-heiko@sntech.de>
Date: Thu, 25 Apr 2024 21:55:05 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: heiko@...ech.de
Cc: quentin.schulz@...obroma-systems.com,
	hjc@...k-chips.com,
	andy.yan@...k-chips.com,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: [PATCH 1/2] drm/rockchip: vop2: fix rk3588 dp+dsi maxclk verification

From: Heiko Stuebner <heiko.stuebner@...rry.de>

The clock is in Hz while the value checked against is in kHz, so
actual frequencies will never be able to be below to max value.
Fix this by specifying the max-value in Hz too.

Fixes: 5a028e8f062f ("drm/rockchip: vop2: Add support for rk3588")
Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 9bee1fd88e6a2..523880a4e8e74 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1719,7 +1719,7 @@ static unsigned long rk3588_calc_cru_cfg(struct vop2_video_port *vp, int id,
 		else
 			dclk_out_rate = v_pixclk >> 2;
 
-		dclk_rate = rk3588_calc_dclk(dclk_out_rate, 600000);
+		dclk_rate = rk3588_calc_dclk(dclk_out_rate, 600000000);
 		if (!dclk_rate) {
 			drm_err(vop2->drm, "DP dclk_out_rate out of range, dclk_out_rate: %ld KHZ\n",
 				dclk_out_rate);
@@ -1736,7 +1736,7 @@ static unsigned long rk3588_calc_cru_cfg(struct vop2_video_port *vp, int id,
 		 * dclk_rate = N * dclk_core_rate N = (1,2,4 ),
 		 * we get a little factor here
 		 */
-		dclk_rate = rk3588_calc_dclk(dclk_out_rate, 600000);
+		dclk_rate = rk3588_calc_dclk(dclk_out_rate, 600000000);
 		if (!dclk_rate) {
 			drm_err(vop2->drm, "MIPI dclk out of range, dclk_out_rate: %ld KHZ\n",
 				dclk_out_rate);
-- 
2.39.2