linux-kernel - Re: [PATCH v1 6/8] drm: rcar-du: Add r8a779g0 support

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Message-ID: <cd2b6725-ab9f-45f6-b660-b43d6da0c562@ideasonboard.com>
Date:   Tue, 22 Nov 2022 10:42:21 +0200
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Cc:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <robert.foss@...aro.org>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Subject: Re: [PATCH v1 6/8] drm: rcar-du: Add r8a779g0 support

On 22/11/2022 05:05, Laurent Pinchart wrote:
> On Thu, Nov 17, 2022 at 03:08:38PM +0000, Kieran Bingham wrote:
>> Quoting Tomi Valkeinen (2022-11-17 12:25:45)
>>> From: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
>>>
>>> Add support for DU on r8a779g0, which is identical to DU on r8a779a0.
>>>
>>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
>>> ---
>>>   drivers/gpu/drm/rcar-du/rcar_du_drv.c | 22 ++++++++++++++++++++++
>>>   1 file changed, 22 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>>> index d003e8d9e7a2..b1761d4ec4e5 100644
>>> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>>> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
>>> @@ -524,6 +524,27 @@ static const struct rcar_du_device_info rcar_du_r8a779a0_info = {
>>>          .dsi_clk_mask =  BIT(1) | BIT(0),
>>>   };
>>>   
>>> +static const struct rcar_du_device_info rcar_du_r8a779g0_info = {
>>> +       .gen = 3,
>>
>> Given that this is the V4H ... I wonder if this should be bumped
>> already. I guess that has knock on effects through the driver though...
> 
> rcar_du_group_setup_didsr() would need to be fixed to test gen >= 3
> instead of gen == 3. That seems to be the only problematic location. It
> could thus fairly easily be done in v2, but we can also delay it.

Ok, I can fix that here.

  Tomi