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    Subject[PATCH AUTOSEL 5.12 034/160] drm/vc4: Fix clock source for VEC PixelValve on BCM2711
    Date
    From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>

    [ Upstream commit fc7a8abcee2225d6279ff785d33e24d70c738c6e ]

    On the BCM2711 (Raspberry Pi 4), the VEC is actually connected to
    output 2 of pixelvalve3.

    NOTE: This contradicts the Broadcom docs, but has been empirically
    tested and confirmed by Raspberry Pi firmware devs.

    Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
    Signed-off-by: Maxime Ripard <maxime@cerno.tech>
    Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20210520150344.273900-2-maxime@cerno.tech
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/vc4/vc4_crtc.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
    index 76657dcdf9b0..665ddf8f347f 100644
    --- a/drivers/gpu/drm/vc4/vc4_crtc.c
    +++ b/drivers/gpu/drm/vc4/vc4_crtc.c
    @@ -994,7 +994,7 @@ static const struct vc4_pv_data bcm2711_pv3_data = {
    .fifo_depth = 64,
    .pixels_per_clock = 1,
    .encoder_types = {
    - [0] = VC4_ENCODER_TYPE_VEC,
    + [PV_CONTROL_CLK_SELECT_VEC] = VC4_ENCODER_TYPE_VEC,
    },
    };

    --
    2.30.2
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