linux-kernel - [PATCH v1 0/7] drm/vc4: Fix the core clock behaviour

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Message-Id: <20220815-rpi-fix-4k-60-v1-0-c52bd642f7c6@cerno.tech>
Date:   Mon, 15 Aug 2022 17:31:22 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Michael Turquette <mturquette@...libre.com>,
        Ray Jui <rjui@...adcom.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Stephen Boyd <sboyd@...nel.org>,
        Scott Branden <sbranden@...adcom.com>,
        Maxime Ripard <mripard@...nel.org>,
        Emma Anholt <emma@...olt.net>
Cc:     Maxime Ripard <maxime@...no.tech>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rpi-kernel@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org, Dom Cobley <popcornmix@...il.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 0/7] drm/vc4: Fix the core clock behaviour

Hi,

Those patches used to be part of a larger clock fixes series:
https://lore.kernel.org/linux-clk/20220715160014.2623107-1-maxime@cerno.tech/

However, that series doesn't seem to be getting anywhere, so I've split out
these patches that fix a regression that has been there since 5.18 and that
prevents the 4k output from working on the RaspberryPi4.

Hopefully, we will be able to merge those patches through the DRM tree to avoid
any further disruption.

Let me know what you think,
Maxime

---
Dom Cobley (1):
      drm/vc4: hdmi: Add more checks for 4k resolutions

Maxime Ripard (6):
      clk: bcm: rpi: Create helper to retrieve private data
      clk: bcm: rpi: Add a function to retrieve the maximum
      clk: bcm: rpi: Add a function to retrieve the minimum
      drm/vc4: hdmi: Fix hdmi_enable_4kp60 detection
      drm/vc4: hdmi: Rework hdmi_enable_4kp60 detection code
      drm/vc4: Make sure we don't end up with a core clock too high

 drivers/clk/bcm/clk-raspberrypi.c        | 73 ++++++++++++++++++++++++++++----
 drivers/gpu/drm/vc4/vc4_drv.h            | 14 ++++++
 drivers/gpu/drm/vc4/vc4_hdmi.c           | 25 +++++------
 drivers/gpu/drm/vc4/vc4_hdmi.h           |  8 ----
 drivers/gpu/drm/vc4/vc4_hvs.c            | 13 ++++++
 drivers/gpu/drm/vc4/vc4_kms.c            | 17 +++++---
 include/soc/bcm2835/raspberrypi-clocks.h | 21 +++++++++
 7 files changed, 138 insertions(+), 33 deletions(-)
---
base-commit: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
change-id: 20220815-rpi-fix-4k-60-17273650429d

Best regards,
-- 
Maxime Ripard <maxime@...no.tech>