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    Subject[PATCH v6 8/8] drm: rcar-du: kms: Expand comment in vsps parsing routine
    Date
    Expand comment in the 'vsps' parsing routine to specify the LIF
    channel index defaults to 0 in case the second cell of the property
    is not specified to remain compatible with older DT bindings.

    Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
    Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
    Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
    ---
    drivers/gpu/drm/rcar-du/rcar_du_kms.c | 6 +++++-
    1 file changed, 5 insertions(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
    index 7c9fb5860e54..186422ac552b 100644
    --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
    +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
    @@ -587,7 +587,11 @@ static int rcar_du_vsps_init(struct rcar_du_device *rcdu)

    vsps[j].crtcs_mask |= BIT(i);

    - /* Store the VSP pointer and pipe index in the CRTC. */
    + /*
    + * Store the VSP pointer and pipe index in the CRTC. If the
    + * second cell of the 'vsps' specifier isn't present, default
    + * to 0 to remain compatible with older DT bindings.
    + */
    rcdu->crtcs[i].vsp = &rcdu->vsps[j];
    rcdu->crtcs[i].vsp_pipe = cells >= 1 ? args.args[0] : 0;
    }
    --
    2.23.0
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