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Message-ID: <f2ec22160ac86aec8d252ade7d6eb8789777cc42.camel@suse.de>
Date:   Thu, 05 Mar 2020 11:44:23 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Stefan Wahren <stefan.wahren@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Eric Anholt <eric@...olt.net>
Cc:     devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        wahrenst@....net
Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D

Hi Stefan,

On Tue, 2020-03-03 at 20:24 +0100, Stefan Wahren wrote:
> > > > Note: I tested this on RPi3b, RPi3a+ and RPi2b.
> > > as i already wrote this prevent X to start on current Raspbian on my
> > > Raspberry Pi 3A+ (multi_v7_defconfig, no u-boot). We must be careful here.
> > > 
> > > I will take a look at the debug UART. Maybe there are more helpful
> > > information.
> > It seems we're seeing different things, I tested this on raspbian
> > (multi_v7_defconfig) and on arm64. I'll try again from scratch tomorrow.
> 
> My modifications to the Raspbian image (from 13.2.2020) are little:
> 
> - specify devicetree to config.txt
> - change console to ttyS1 and remove "silent" in cmdline.txt
> - rename all original kernel7*.img
> - copy dtb and kernel7.img to boot partition
> - copy kernel modules to root partition

Would you mind retesting with the latest linux-next? I validated an image based
on 5.6.0-rc4-next-20200305-00001-g285a7a64cd56 and a fresh raspbian download on
RPi3a+ without X issues.

> The debug UART works fine, maybe the dmesg gives us a hint:

[...]

> [    8.451520] vc4_hdmi 3f902000.hdmi: vc4-hdmi-hifi <-> 3f902000.hdmi
> mapping ok
> [    8.451541] vc4_hdmi 3f902000.hdmi: ASoC: no DMI vendor name!
> [    8.465617] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops
> [vc4])
> [    8.466033] vc4-drm soc:gpu: bound 3f806000.vec (ops vc4_vec_ops [vc4])
> [    8.466159] vc4-drm soc:gpu: bound 3f004000.txp (ops vc4_txp_ops [vc4])
> [    8.466292] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
> [    8.466649] vc4-drm soc:gpu: bound 3f206000.pixelvalve (ops
> vc4_crtc_ops [vc4])
> [    8.466889] vc4-drm soc:gpu: bound 3f207000.pixelvalve (ops
> vc4_crtc_ops [vc4])
> [    8.467154] vc4-drm soc:gpu: bound 3f807000.pixelvalve (ops
> vc4_crtc_ops [vc4])
> [    8.467262] vc4-drm soc:gpu: bound 3fc00000.v3d (ops vc4_v3d_ops [vc4])
> [    8.467272] checking generic (1e330000 8ca000) vs hw (0 ffffffff)
> [    8.467278] fb0: switching to vc4drmfb from simple
> [    8.473639] Console: switching to colour dummy device 80x30
> [    8.473714] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [    8.473718] [drm] Driver supports precise vblank timestamp query.
> [    8.476777] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
> [    8.534359] Console: switching to colour frame buffer device 90x30
> [    8.550245] vc4-drm soc:gpu: fb0: vc4drmfb frame buffer device

I get the exact same results as you here.

Regards,
Nicolas


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