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From: "Diederik de Haas" To: "Daniel Semkowicz" , References: <20241203165450.1501219-1-heiko@sntech.de> <20241209150619.33998-1-dse@thaumatec.com> In-Reply-To: <20241209150619.33998-1-dse@thaumatec.com> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241209_081132_413422_DBF2FC71 X-CRM114-Status: GOOD ( 20.23 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============4417623677543080712==" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org --===============4417623677543080712== Content-Type: multipart/signed; boundary=eefa09e675ebf91d252165db5d46d61f91efbf3c096cae57afe8caeae9bb; micalg=pgp-sha256; protocol="application/pgp-signature" --eefa09e675ebf91d252165db5d46d61f91efbf3c096cae57afe8caeae9bb Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Hi, On Mon Dec 9, 2024 at 4:06 PM CET, Daniel Semkowicz wrote: > On 03.12.24 21:54, Heiko Stuebner wrote: > > This series adds a bridge and glue driver for the DSI2 controller found > > in the rk3588 soc from Rockchip, that is based on a Synopsis IP block. > >=20 > > I did more tests with different LVDS displays. I tested following > configurations with DSI/LVDS bridge: > - 1024x600@60.01 > - 1024x768@60.02 > - 1280x800@60.07 > - 1366x768@60.06 > > All of them worked without issues, except 1366x768. > With this resolution, video is blurry, and offset incorrectly > to the left. There are also repeating errors on the console: > > rockchip-drm display-subsystem: [drm] *ERROR* POST_BUF_EMPTY irq err at= vp3 > > In correct operation with other resolutions, there is no error. > I am not sure if this is a problem in your series or rather in VOP2 > driver. On my PineTab2 I got similar messages about 2 weeks ago: rockchip-drm display-subsystem: [drm] *ERROR* POST_BUF_EMPTY irq err at vp1 Preceding those, I got several panfrost related errors: panfrost fde60000.gpu: get clock failed -517 panfrost fde60000.gpu: clk init failed -517 platform fde60000.gpu: deferred probe pending: (reason unknown) platform cpufreq-dt: deferred probe pending: (reason unknown) vdd_gpu_npu: disabling But can also be that the PineTab2 (likely) needs regulator-always-on and regulator-boot-on in its vdd_gpu_npu node. > I tried to track down the problem, and it seems to be a generic issue > when horizontal line width is not divisible by 4. > Lowering line width to 1364px fixes the issue, but of course I have two > vertical lines of black pixels on the right. > I also made some tests with 720x1280 DSI display. Lowering horizontal > line to 718px shows the same problem. With 720px and 716px it works > correctly. I haven't look further into it, but the PT2 has a 1280x800 resolution. HTH, Diederik --eefa09e675ebf91d252165db5d46d61f91efbf3c096cae57afe8caeae9bb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQT1sUPBYsyGmi4usy/XblvOeH7bbgUCZ1cWnwAKCRDXblvOeH7b bt6mAQC6vSnt+4gcL6mV0BWnp8ZL7iXn5fWiXFogAWGKMTLc7QEAoV2+ibpMQSek 0THMoeuvcpjes+GUp5Tq8DFptaTtHAE= =lTYg -----END PGP SIGNATURE----- --eefa09e675ebf91d252165db5d46d61f91efbf3c096cae57afe8caeae9bb-- --===============4417623677543080712== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip --===============4417623677543080712==--