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Subject: Re: [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline
To:     Maxime Ripard <maxime@cerno.tech>,
        Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
        Eric Anholt <eric@anholt.net>
Cc:     devicetree@vger.kernel.org, Tim Gover <tim.gover@raspberrypi.com>,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Kamal Dasu <kdasu.kdev@gmail.com>,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-clk@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
        bcm-kernel-feedback-list@broadcom.com,
        linux-rpi-kernel@lists.infradead.org,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Phil Elwell <phil@raspberrypi.com>,
        linux-arm-kernel@lists.infradead.org
References: <cover.7a1aa1784976093af26cb31fd283cf5b3ed568bb.1594230107.git-series.maxime@cerno.tech>
From:   Stefan Wahren <stefan.wahren@i2se.com>
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Message-ID: <89fb9c01-84fb-0ea0-233d-d77eaf81412b@i2se.com>
Date:   Fri, 10 Jul 2020 11:58:18 +0200
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In-Reply-To: <cover.7a1aa1784976093af26cb31fd283cf5b3ed568bb.1594230107.git-series.maxime@cerno.tech>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi Maxime,

Am 08.07.20 um 19:41 schrieb Maxime Ripard:
> Hi everyone,
>
> Here's a (pretty long) series to introduce support in the VC4 DRM driver
> for the display pipeline found in the BCM2711 (and thus the RaspberryPi 4).
>
> The main differences are that there's two HDMI controllers and that there's
> more pixelvalve now. Those pixelvalve come with a mux in the HVS that still
> have only 3 FIFOs. Both of those differences are breaking a bunch of
> expectations in the driver, so we first need a good bunch of cleanup and
> reworks to introduce support for the new controllers.
>
> Similarly, the HDMI controller has all its registers shuffled and split in
> multiple controllers now, so we need a bunch of changes to support this as
> well.
>
> Only the HDMI support is enabled for now (even though the DPI and DSI
> outputs have been tested too).
>
> Let me know if you have any comments
> Maxime
>
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: devicetree@vger.kernel.org
> Cc: Kamal Dasu <kdasu.kdev@gmail.com>
> Cc: linux-clk@vger.kernel.org
> Cc: Michael Turquette <mturquette@baylibre.com>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Stephen Boyd <sboyd@kernel.org>
>
> Changes from v3:
>   - Rebased on top of next-20200708
>   - Added a name to the HDMI audio codec component
>   - Only disable the BCM2711 HDMI pixelvalves at boot
>   - Fixed an error in the HVS binding
>   - Fix a framebuffer size condition that was inverted
>   - Changed the channel allocation algorithm using Eric's suggestion
>   - Always write the muxing values instead of updating if needed
>   - Improved a bit the hvs_available_channels comment in the structure
>   - Change atomic_complete_commit code to use for_each_new_crtc_in_state
>   - Change the muxing code to take into account disparities between the
>     BCM2711 and previous SoCs.
>   - Only change the clock rate on BCM2711 during a modeset
>   - Fix a crash at atomic_disable
>   - Use clk_set_min_rate for the core clock too
>   - Add a few defines, and simplify the FIFO level stuff
>   - Reordered the patches according to Eric's reviews
>   - Fixed a regression with VID_CTL setting on RPI3
>
i additionally applied "drm/vc4/vc4_hdmi: fill ASoC card owner" on top
of your series (potential merge conflict).

I didn't see any issues with a RPI 3B or RPI 4B.

So this whole series is

Tested-by: Stefan Wahren <stefan.wahren@i2se.com>

Regards
Stefan