Subject: Re: [PATCH 1/3] dt-bindings: add the grf clock for dw-mipi-dsi
To: =?UTF-8?Q?Heiko_St=c3=bcbner?= <heiko@sntech.de>
References: <1489567352-3333-1-git-send-email-zyw@rock-chips.com>
 <3304582.Whtjx7Nypf@diego>
Cc: linux-rockchip@lists.infradead.org, Mark Yao <mark.yao@rock-chips.com>,
        David Airlie <airlied@linux.ie>, Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>, dri-devel@lists.freedesktop.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
From: Chris Zhong <zyw@rock-chips.com>
Message-ID: <58C90F8B.7070102@rock-chips.com>
Date: Wed, 15 Mar 2017 17:55:23 +0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101
 Thunderbird/38.4.0
MIME-Version: 1.0
In-Reply-To: <3304582.Whtjx7Nypf@diego>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1607
Lines: 45

Hi Heiko

On 03/15/2017 05:03 PM, Heiko St?bner wrote:
> Am Mittwoch, 15. M?rz 2017, 16:42:30 CET schrieb Chris Zhong:
>> For RK3399, the grf clock should be controlled by dw-mipi-dsi driver,
>> add the description for this clock.
>>
>> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
>> ---
>>
>>   .../devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt       | 2
>> +- 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git
>> a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.t
>> xt
>> b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.t
>> xt index 188f6f7..7e17a60 100644
>> ---
>> a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.t
>> xt +++
>> b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.t
>> xt @@ -10,7 +10,7 @@ Required properties:
>>   - interrupts: Represent the controller's interrupt to the CPU(s).
>>   - clocks, clock-names: Phandles to the controller's pll reference
>>     clock(ref) and APB clock(pclk). For RK3399, a phy config clock
>> -  (phy_cfg) is additional required. As described in [1].
>> +  (phy_cfg) and a grf clock(grf) are additional required. As described in
>> [1].
> your "grf" clock is optional, as it is not present on all socs (like the
> rk3288) so should probably move to a separate section and not be in the
> required properties
For RK3399, the grf clock is required, according to the advice provided 
by rob[0],
put it into "required properties " is better.
[0] https://patchwork.kernel.org/patch/9220187/
>
> Heiko
>
>
>

-- 
Chris Zhong