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SubjectRe: [PATCH 1/3] drm: rcar-du: Update Gen3 output limitations
Date
Hi Kieran,

Thank you for the patch.

On Friday, 31 August 2018 21:12:57 EEST Kieran Bingham wrote:
> The R-Car Gen3 DU utilises the VSP1 hardware for memory access. The
> limits on the RPF and WPF in this pipeline are 8190x8190.
>
> Update the supported maximum sizes accordingly.
>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

and applied to my tree.

> ---
> drivers/gpu/drm/rcar-du/rcar_du_kms.c | 14 ++++++++++++--
> 1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index ed7fa3204892..7c7aff8cdf77
> 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> @@ -512,12 +512,22 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
>
> dev->mode_config.min_width = 0;
> dev->mode_config.min_height = 0;
> - dev->mode_config.max_width = 4095;
> - dev->mode_config.max_height = 2047;
> dev->mode_config.normalize_zpos = true;
> dev->mode_config.funcs = &rcar_du_mode_config_funcs;
> dev->mode_config.helper_private = &rcar_du_mode_config_helper;
>
> + if (rcdu->info->gen < 3) {
> + dev->mode_config.max_width = 4095;
> + dev->mode_config.max_height = 2047;
> + } else {
> + /*
> + * The Gen3 DU uses the VSP1 for memory access, and is limited
> + * to frame sizes of 8190x8190.
> + */
> + dev->mode_config.max_width = 8190;
> + dev->mode_config.max_height = 8190;
> + }
> +
> rcdu->num_crtcs = hweight8(rcdu->info->channels_mask);
>
> ret = rcar_du_properties_init(rcdu);

--
Regards,

Laurent Pinchart



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