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[89.66.237.154]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac278a7a7e7sm299767966b.47.2025.03.09.13.54.06 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 09 Mar 2025 13:54:09 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.400.131.1.6\)) Subject: Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller From: Piotr Oniszczuk X-Priority: 3 In-Reply-To: <545cc438.7e3.1956e13a3e2.Coremail.andyshrk@163.com> Date: Sun, 9 Mar 2025 21:53:50 +0100 Cc: heiko@sntech.de, neil.armstrong@linaro.org, sebastian.reichel@collabora.com, devicetree@vger.kernel.org, hjc@rock-chips.com, mripard@kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, yubing.zhang@rock-chips.com, dri-devel@lists.freedesktop.org, Andy Yan , krzk+dt@kernel.org, robh@kernel.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <25401bfa.291d.19564244e54.Coremail.andyshrk@163.com> <75189787-28E1-4FC2-8E10-4960B3877A6F@gmail.com> <28b0d3fc.bb3.19568f6b5f8.Coremail.andyshrk@163.com> <44213B17-FE14-4FB8-8319-1E31BBF6EAA0@gmail.com> <74c154b6.8c50.1956aa8c8d2.Coremail.andyshrk@163.com> <1573D5D6-AFED-4D92-8112-B0C6BB52D5FF@gmail.com> <46c0d239.a4f5.1956b619b97.Coremail.andyshrk@163.com> <252BB2E2-4BC5-4402-953D-F7B30EA5DE14@gmail.com> <326B91E9-FB91-43C3-B98B-3EF079F313C6@gmail.com> <545cc438.7e3.1956e13a3e2.Coremail.andyshrk@163.com> To: Andy Yan X-Mailer: Apple Mail (2.3826.400.131.1.6) > Wiadomo=C5=9B=C4=87 napisana przez Andy Yan w dniu = 7 mar 2025, o godz. 01:48: >=20 >=20 > Hi Piotr, > =E5=9C=A8 2025-03-06 22:28:08=EF=BC=8C"Piotr Oniszczuk" = =E5=86=99=E9=81=93=EF=BC=9A >>=20 >>=20 >=20 > All dump information currently appears to be correct, so I'm = temporarily unsure why > there is no display on the monitor. > Maybe try some plug and unplug for the DP cable, or try another cable = or monitor? >=20 > It seems that this board uses a DP to HDMI converter? Does this = transmitter need a driver? >=20 > I won't be at my computer over the next two or three days, so any = further replies to your email > might have to wait until next week. >=20 >=20 Andy, FYI: I done test on mine rock5a with applied Naoki dp0 enablement in dts (and = only in dts). No any changes in dw dp driver (so i=E2=80=99m on vanilla = https://patchwork.kernel.org/project/linux-rockchip/cover/20250223113036.7= 4252-1-andyshrk@163.com/ ) on mine rock5a ra620 hdmi port works ok. (I contacted also Radxa about ra620 and they confirmed: ra620 is just = DP->HDMI converter. No any driver nor special programming/enablement is = needed) This tells me that dp0 (rock5a) works ok while dp1 (rock5itx) not. i suspect issue is probably in = https://patchwork.kernel.org/project/linux-rockchip/cover/20250223113036.7= 4252-1-andyshrk@163.com/ and is related to dp1 handling? BTW: there seems to be issue with video modes handling on dp0 port:=20 -playing video 1920@1080@50 - ok -playing then video1920@1080@59,64 hangs board=E2=80=A6. hdmi0 works ok. video modes issue is only on dp0