linux-kernel - Re: [PATCH] clk: rockchip: add pclk_vio

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Message-ID: <575F73B1.9000703@rock-chips.com>
Date:	Tue, 14 Jun 2016 11:02:09 +0800
From:	Xing Zheng <zhengxing@...k-chips.com>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Heiko Stübner <heiko@...ech.de>,
	elaine zhang <elaine.zhang@...k-chips.com>,
	Tao Huang <huangtao@...k-chips.com>,
	Brian Norris <briannorris@...omium.org>,
	Yakir Yang <ykk@...k-chips.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-clk <linux-clk@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clk: rockchip: add pclk_vio_grf to critical clock on the
 RK3399

Hi Doug,

On 2016年06月14日 07:46, Doug Anderson wrote:
>
> Even if it's not much power, it seems like we should still turn it off
> and on in the right place.  Unless I'm mistaken it should be such a
> simple patch provide the clock to the right driver and then get the
> clock when appropriate.
Yes, I talked with Yakir and we intent to enable/disable the 
pclk_vio_grf in video drivers,
so this patch will be dropped.
>> I will refer the latest TRM to update a new patch for always enable these
>> GRFs.
> Does that mean you're going to make these all critical clocks?  That
> doesn't sound so great...
>
> -Doug
Maybe, I heard that they are removed in the updated TRM, but I have not 
got the TRM yet.
I will double check it, and it seems that you do not agree to remove 
these clock...

Thanks.

-- 
- Xing Zheng