Hi,
At 2024-05-06 15:44:36, "Quentin Schulz" <quentin.sch...@cherry.de> wrote:
>Hi Heiko,
>
>On 4/25/24 9:55 PM, Heiko Stuebner wrote:
>> From: Heiko Stuebner <heiko.stueb...@cherry.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.stueb...@cherry.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",
>
>It seems the error message is incorrect as well and should be saying Hz
>instead of KHz. (note also the lowercase z).
I think kHz is fine, we can find many siminary usage in drm:
drivers/gpu/drm/drm_vblank.c
656: drm_dbg_core(dev, "crtc %u: clock %d kHz framedur %d linedur %d\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",
>
>Ditto.
>
>Otherwise,
>
>Reviewed-by: Quentin Schulz <quentin.sch...@cherry.de>
Acked-by: Andy Yan<andys...@163.com>
>
>Thanks!
>Quentin
