[PATCH v7 12/12] drm/vc4: hdmi: Remove clock rate initialization

Thomas Zimmermann tzimmermann at suse.de
Wed Apr 6 08:53:17 UTC 2022



Am 25.02.22 um 15:35 schrieb Maxime Ripard:
> Now that the clock driver makes sure we never end up with a rate of 0,
> the HDMI driver doesn't need to care anymore.
> 
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>

Acked-by: Thomas Zimmermann <tzimmermann at suse.de>

> ---
>   drivers/gpu/drm/vc4/vc4_hdmi.c | 13 -------------
>   1 file changed, 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> index 92b1530aa17b..21aff3ad96cf 100644
> --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> @@ -2576,19 +2576,6 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
>   			vc4_hdmi->disable_4kp60 = true;
>   	}
>   
> -	/*
> -	 * If we boot without any cable connected to the HDMI connector,
> -	 * the firmware will skip the HSM initialization and leave it
> -	 * with a rate of 0, resulting in a bus lockup when we're
> -	 * accessing the registers even if it's enabled.
> -	 *
> -	 * Let's put a sensible default at runtime_resume so that we
> -	 * don't end up in this situation.
> -	 */
> -	ret = clk_set_min_rate(vc4_hdmi->hsm_clock, HSM_MIN_CLOCK_FREQ);
> -	if (ret)
> -		goto err_put_ddc;
> -
>   	/*
>   	 * We need to have the device powered up at this point to call
>   	 * our reset hook and for the CEC init.

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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