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

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Message-ID: <564D756D.9050000@rock-chips.com>
Date:	Thu, 19 Nov 2015 15:08:29 +0800
From:	Mark yao <mark.yao@...k-chips.com>
To:	Chris Zhong <zyw@...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 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.

Thanks.
- Ｍark Yao

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