From: Thomas Zimmermann <tzimmermann@suse.de>
To: Maxime Ripard <maxime@cerno.tech>,
Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>, Eric Anholt <eric@anholt.net>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: linux-rpi-kernel@lists.infradead.org,
bcm-kernel-feedback-list@broadcom.com,
linux-arm-kernel@lists.infradead.org,
dri-devel@lists.freedesktop.org,
Dave Stevenson <dave.stevenson@raspberrypi.com>
Subject: Re: [PATCH v5 3/9] drm/vc4: hdmi: Take into account the clock doubling flag in atomic_check
Date: Tue, 8 Dec 2020 08:54:07 +0100 [thread overview]
Message-ID: <3142865d-e3c0-686e-5bb0-865d722b770e@suse.de> (raw)
In-Reply-To: <20201207155719.17149-4-maxime@cerno.tech>
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Am 07.12.20 um 16:57 schrieb Maxime Ripard:
> Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
> Fixes: 63495f6b4aed ("drm/vc4: hdmi: Make sure our clock rate is within limits")
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> drivers/gpu/drm/vc4/vc4_hdmi.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> index 5a608ed1d75e..a88aa20beeb6 100644
> --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> @@ -796,6 +796,9 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
> pixel_rate = mode->clock * 1000;
> }
>
> + if (mode->flags & DRM_MODE_FLAG_DBLCLK)
> + pixel_rate = pixel_rate * 2;
> +
> if (pixel_rate > vc4_hdmi->variant->max_pixel_clock)
> return -EINVAL;
>
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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next prev parent reply other threads:[~2020-12-08 7:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-07 15:57 [PATCH v5 0/9] drm/vc4: hdmi: Support the 10/12 bit output Maxime Ripard
2020-12-07 15:57 ` [PATCH v5 1/9] drm/vc4: hvs: Align the HVS atomic hooks to the new API Maxime Ripard
2020-12-07 15:57 ` [PATCH v5 2/9] drm/vc4: Pass the atomic state to encoder hooks Maxime Ripard
2020-12-08 7:53 ` Thomas Zimmermann
2020-12-07 15:57 ` [PATCH v5 3/9] drm/vc4: hdmi: Take into account the clock doubling flag in atomic_check Maxime Ripard
2020-12-08 7:54 ` Thomas Zimmermann [this message]
2020-12-09 15:29 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 4/9] drm/vc4: hdmi: Don't access the connector state in reset if kmalloc fails Maxime Ripard
2020-12-09 15:20 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 5/9] drm/vc4: hdmi: Create a custom connector state Maxime Ripard
2020-12-09 15:22 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 6/9] drm/vc4: hdmi: Store pixel frequency in the " Maxime Ripard
2020-12-08 7:55 ` Thomas Zimmermann
2020-12-09 15:32 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 7/9] drm/vc4: hdmi: Use the connector state pixel rate for the PHY Maxime Ripard
2020-12-09 15:23 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 8/9] drm/vc4: hdmi: Limit the BCM2711 to the max without scrambling Maxime Ripard
2020-12-09 15:23 ` Dave Stevenson
2020-12-07 15:57 ` [PATCH v5 9/9] drm/vc4: hdmi: Enable 10/12 bpc output Maxime Ripard
2020-12-09 15:27 ` Dave Stevenson
2020-12-10 14:21 ` Maxime Ripard
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