linux-kernel - Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <326B91E9-FB91-43C3-B98B-3EF079F313C6@gmail.com>
Date: Thu, 6 Mar 2025 15:28:08 +0100
From: Piotr Oniszczuk <piotr.oniszczuk@...il.com>
To: Andy Yan <andyshrk@....com>
Cc: heiko@...ech.de,
 neil.armstrong@...aro.org,
 sebastian.reichel@...labora.com,
 devicetree@...r.kernel.org,
 hjc@...k-chips.com,
 mripard@...nel.org,
 linux-kernel@...r.kernel.org,
 linux-rockchip@...ts.infradead.org,
 yubing.zhang@...k-chips.com,
 dri-devel@...ts.freedesktop.org,
 Andy Yan <andy.yan@...k-chips.com>,
 krzk+dt@...nel.org,
 robh@...nel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller



> Wiadomość napisana przez Piotr Oniszczuk <piotr.oniszczuk@...il.com> w dniu 6 mar 2025, o godz. 15:08:
> 
> 
> 
>> Wiadomość napisana przez Andy Yan <andyshrk@....com> w dniu 6 mar 2025, o godz. 13:15:
>> 
>> Hi Piotr,
>> 
>> 
>> 
>> Then when you DP cable plugin, you can run command as bellow to see if the driver detects the HPD:
>> 
>> # cat /sys/class/drm/card0-DP-1/status 
>> connected
>> # 
>> 
> 
> 
> Andy,
> Thx!
> 
> With above changes i’m getting „connected”.
> Also it looks crtc gets reasonable mode: https://gist.github.com/warpme/d6220e3cc502086a4c95f05bd9f9cf0c
> 
> Still black screen however…
>   

some additional data point: /sys/kernel/debug/dri/1/vop2/summary 


working hdmi:

Video Port1: ACTIVE
    Connector: HDMI-A-1
        bus_format[0]: Unknown
        output_mode[f] color_space[0]
    Display mode: 1920x1080p60
        clk[148500] real_clk[148500] type[48] flag[5]
        H: 1920 2008 2052 2200
        V: 1080 1084 1089 1125
    Cluster0-win0: ACTIVE
        win_id: 0
        format: XR24 little-endian (0x34325258) glb_alpha[0xff]
        rotate: xmirror: 0 ymirror: 0 rotate_90: 0 rotate_270: 0
        zpos: 0
        src: pos[0, 0] rect[1920 x 1080]
        dst: pos[0, 0] rect[1920 x 1080]
        buf[0]: addr: 0x00000000017e1000 pitch: 7680 offset: 0
Video Port2: DISABLED




non-working DP:

Video Port1: DISABLED
Video Port2: ACTIVE
    Connector: DP-1
        bus_format[100a]: RGB888_1X24
        output_mode[f] color_space[0]
    Display mode: 1920x1080p60
        clk[148500] real_clk[148500] type[48] flag[5]
        H: 1920 2008 2052 2200
        V: 1080 1084 1089 1125
    Cluster1-win0: ACTIVE
        win_id: 1
        format: XR24 little-endian (0x34325258) glb_alpha[0xff]
        rotate: xmirror: 0 ymirror: 0 rotate_90: 0 rotate_270: 0
        zpos: 0
        src: pos[0, 0] rect[1920 x 1080]
        dst: pos[0, 0] rect[1920 x 1080]
        buf[0]: addr: 0x00000000007ed000 pitch: 7680 offset: 0