linux-kernel - Re: [PATCH v9 00/11] Genericize DW MIPI DSI bridge and add i.MX 6 driver

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Date:   Wed, 01 Jul 2020 23:32:18 +0300
From:   Adrian Ratiu <adrian.ratiu@...labora.com>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Philippe CORNU <philippe.cornu@...com>,
        Yannick FERTRE <yannick.fertre@...com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Jonas Karlman <jonas@...boo.se>, linux-imx@....com,
        kernel@...labora.com, linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH v9 00/11] Genericize DW MIPI DSI bridge and add i.MX 6
 driver

Hi Heiko,

On Wed, 01 Jul 2020, Heiko Stübner <heiko@...ech.de> wrote:
> Hi Adrian, 
> 
> Am Dienstag, 9. Juni 2020, 19:49:48 CEST schrieb Adrian Ratiu: 
>> [Re-submitting to cc dri-devel, sorry about the noise]  Hello 
>> all,  v9 cleanly applies on top of latest next-20200609 tree. 
> 
> at least it doesn't apply on top of current drm-misc-next for me 
> which I really don't understand. 
> 
> Like patch 2/11 does 
> 
> @@ -31,6 +31,7 @@ 
>  #include <drm/drm_probe_helper.h> 
> . 
>  #define HWVER_131<----><------><------>0x31333100<---->/* IP 
>  version 1.31 */ 
> +#define HWVER_130<----><------><------>0x31333000<---->/* IP 
> version 1.30 */ . 
>  #define DSI_VERSION<--><------><------>0x00 #define 
>  VERSION<------><------><------><------>GENMASK(31, 8) 
> 
> where the file currently looks like 
> 
> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> 
> #include <drm/drm_crtc.h> #include <drm/drm_mipi_dsi.h> #include 
> <drm/drm_modes.h> #include <drm/drm_of.h> #include 
> <drm/drm_print.h> 
> 
> #define HWVER_131			0x31333100	/* IP 
> version 1.31 */ 
> 
> #define DSI_VERSION			0x00 #define VERSION 
> GENMASK(31, 8) 
>  
> even in Linux-next 
>  
> So I guess ideally rebase on top of drm-misc-next

I will send a rebase on top of drm-misc-next soon (with the last 
DTS nitpick fixed and the latest acks and reviewed-by tags added).

In the meantime I also found someone within Collabora who has a RK 
with a DSI panel and found a bug (likely clock is not enabled 
early enough to access the cfg registers to get the version for 
regmap).

I'm super happy this is getting tested on RK, thank you!

>
>
> Thanks
> Heiko