linux-kernel - Re: [PATCH v3 03/12] drm/rockchip: return a true clock rate to adjusted

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Message-ID: <564D83DB.9040705@rock-chips.com>
Date:	Thu, 19 Nov 2015 16:10:03 +0800
From:	Chris Zhong <zyw@...k-chips.com>
To:	Mark yao <mark.yao@...k-chips.com>, heiko@...ech.de,
	linux-rockchip@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	David Airlie <airlied@...ux.ie>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 03/12] drm/rockchip: return a true clock rate to
 adjusted_mode



On 11/19/2015 03:08 PM, Mark yao wrote:
> On 2015年11月19日 11:35, Chris Zhong wrote:
>> +
>> +    /*
>> +     * Sometimes the clock driver can not set a accurate clock_rate 
>> for vop,
>> +     * get the true rate of vop_dclk and set it back to adjusted_mode.
>> +     */
>> +    adjusted_mode->clock = clk_get_rate(vop->dclk) / 1000;
>>   out:
>>       ret_clk = clk_enable(vop->dclk);
>>       if (ret_clk < 0) {
> Hi Chris
>      How about use clk_round_rate to check the clock rate first?
>      I think we can check it on vop_crtc_mode_fixup.
Hi Mark
     Nice advice, I'll modify it in next version. Thanks.
>
> Thanks.
> - Ｍark Yao
>
>
>


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