From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
David Airlie <airlied@linux.ie>, Chen-Yu Tsai <wens@csie.org>,
Daniel Vetter <daniel.vetter@intel.com>,
Gustavo Padovan <gustavo@padovan.org>,
Sean Paul <seanpaul@chromium.org>
Subject: Re: [PATCH 05/10] drm/sun4i: Explicitly list and check formats supported by the frontend
Date: Fri, 23 Mar 2018 11:06:59 +0100 [thread overview]
Message-ID: <20180323100659.vojpyt7eazioevdj@flea> (raw)
In-Reply-To: <20180321152904.22411-6-paul.kocialkowski@bootlin.com>
On Wed, Mar 21, 2018 at 04:28:59PM +0100, Paul Kocialkowski wrote:
> In order to check whether the frontend supports a specific format, an
> explicit list and a related helper are introduced.
>
> They are then used to determine whether the frontend can actually support
> the requested format when it was selected to be used.
>
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
> drivers/gpu/drm/sun4i/sun4i_backend.c | 5 ++++
> drivers/gpu/drm/sun4i/sun4i_frontend.c | 44 ++++++++++++++++++++++++++++++++++
> drivers/gpu/drm/sun4i/sun4i_frontend.h | 1 +
> 3 files changed, 50 insertions(+)
>
> diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
> index 7703ba989743..1fad0714c70e 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_backend.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
> @@ -532,6 +532,11 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
> struct drm_format_name_buf format_name;
>
> if (sun4i_backend_plane_uses_frontend(plane_state)) {
> + if (!sun4i_frontend_format_is_supported(fb->format->format)) {
> + DRM_DEBUG_DRIVER("Frontend plane check failed\n");
> + return -EINVAL;
> + }
> +
So you're checking if the frontend doesn't support it and if the
backend doesn't support it. Who supports it then? :)
Like I was saying, this should be moved to the previous patch, within
sun4i_backend_plane_uses_frontend.
> +static const uint32_t sun4i_frontend_formats[] = {
> + /* RGB */
> + DRM_FORMAT_XRGB8888,
> + DRM_FORMAT_BGRX8888,
> + /* YUV444 */
> + DRM_FORMAT_YUV444,
> + DRM_FORMAT_YVU444,
> + /* YUV422 */
> + DRM_FORMAT_YUYV,
> + DRM_FORMAT_YVYU,
> + DRM_FORMAT_UYVY,
> + DRM_FORMAT_VYUY,
> + DRM_FORMAT_NV16,
> + DRM_FORMAT_NV61,
> + DRM_FORMAT_YUV422,
> + DRM_FORMAT_YVU422,
> + /* YUV420 */
> + DRM_FORMAT_NV12,
> + DRM_FORMAT_NV21,
> + DRM_FORMAT_YUV420,
> + DRM_FORMAT_YVU420,
> + /* YUV411 */
> + DRM_FORMAT_YUV411,
> + DRM_FORMAT_YVU411,
> +};
I think this list should reflect what the driver currently supports,
not what the hardware supports.
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2018-03-23 11:27 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-21 15:28 [PATCH 00/10] drm/sun4i: Frontend YUV and MB32 tile modifier support Paul Kocialkowski
2018-03-21 15:28 ` [PATCH 01/10] drm/sun4i: Disable frontend video channel before enabling a layer Paul Kocialkowski
2018-03-23 9:53 ` Maxime Ripard
2018-03-21 15:28 ` [PATCH 02/10] drm/sun4i: Disable YUV channel when using the frontend and set interlace Paul Kocialkowski
2018-03-23 9:55 ` Maxime Ripard
2018-03-27 8:00 ` Paul Kocialkowski
2018-03-27 8:17 ` Maxime Ripard
2018-03-27 8:44 ` Paul Kocialkowski
2018-03-27 8:48 ` Chen-Yu Tsai
2018-03-27 9:18 ` Maxime Ripard
2018-03-27 9:21 ` Paul Kocialkowski
2018-03-21 15:28 ` [PATCH 03/10] drm/sun4i: Don't pretend to handle ARGB8888 with the frontend Paul Kocialkowski
2018-03-22 6:47 ` Chen-Yu Tsai
2018-03-22 8:23 ` Paul Kocialkowski
2018-03-22 8:37 ` Chen-Yu Tsai
2018-03-22 8:41 ` Paul Kocialkowski
2018-03-22 16:12 ` Maxime Ripard
2018-03-22 16:18 ` Paul Kocialkowski
2018-03-21 15:28 ` [PATCH 04/10] drm/sun4i: Explicitly list and check formats supported by the backend Paul Kocialkowski
2018-03-23 10:03 ` Maxime Ripard
2018-03-27 8:08 ` Paul Kocialkowski
2018-03-29 7:56 ` Maxime Ripard
2018-10-16 13:55 ` Paul Kocialkowski
2018-10-17 15:33 ` Maxime Ripard
2018-03-21 15:28 ` [PATCH 05/10] drm/sun4i: Explicitly list and check formats supported by the frontend Paul Kocialkowski
2018-03-23 10:06 ` Maxime Ripard [this message]
2018-03-27 8:24 ` Paul Kocialkowski
2018-03-29 9:03 ` Maxime Ripard
2018-10-16 13:57 ` Paul Kocialkowski
2018-03-21 15:29 ` [PATCH 06/10] drm/sun4i: Move and extend format-related helpers and tables Paul Kocialkowski
2018-03-23 10:13 ` Maxime Ripard
2018-03-27 8:27 ` Paul Kocialkowski
2018-03-27 14:47 ` Maxime Ripard
2018-03-21 15:29 ` [PATCH 07/10] drm/sun4i: Add support for YUV formats through the frontend Paul Kocialkowski
2018-03-23 10:30 ` Maxime Ripard
2018-03-27 8:39 ` Paul Kocialkowski
2018-03-21 15:29 ` [PATCH 08/10] drm/fourcc: Add definitions for Allwinner vendor and MB32 tiled format Paul Kocialkowski
2018-03-21 16:47 ` Daniel Stone
2018-03-22 8:05 ` Paul Kocialkowski
2018-03-21 15:29 ` [PATCH 09/10] drm/sun4i: Add a dedicated ioctl call for allocating tiled buffers Paul Kocialkowski
2018-03-23 10:48 ` Maxime Ripard
2018-03-27 8:41 ` Paul Kocialkowski
2018-03-27 14:48 ` Maxime Ripard
2018-03-21 15:29 ` [PATCH 10/10] drm/sun4i: Add support for YUV-based formats in MB32 tiles Paul Kocialkowski
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