linux-kernel - Re: [PATCH V3 3/3] ARM: clk-imx6q: Add missing lvds and anaclk clock to the clock tree

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Message-ID: <20140809135841.GB8849@dragon>
Date:	Sat, 9 Aug 2014 21:58:42 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Shengjiu Wang <shengjiu.wang@...escale.com>
CC:	<kernel@...gutronix.de>, <linux@....linux.org.uk>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<Guangyu.Chen@...escale.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3 3/3] ARM: clk-imx6q: Add missing lvds and anaclk clock
 to the clock tree

On Fri, Aug 08, 2014 at 03:02:49PM +0800, Shengjiu Wang wrote:
> @@ -176,8 +182,12 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
>  	 * the "output_enable" bit as a gate, even though it's really just
>  	 * enabling clock output.
>  	 */
> -	clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate("lvds1_gate", "lvds1_sel", base + 0x160, 10);
> -	clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate("lvds2_gate", "lvds2_sel", base + 0x160, 11);
> +	clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate2("lvds1_gate", "lvds1_sel", base + 0x160, 10);
> +	clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate2("lvds2_gate", "lvds2_sel", base + 0x160, 11);

I do not think you can simply change to use imx_clk_gate2() here.  It's
designed for those CCGR gate clocks, each of which is controlled by two
bits.

Shawn

> +	clk[IMX6QDL_CLK_LVDS1_IN] = imx_clk_gate2("lvds1_in", "anaclk1", base + 0x160, 12);
> +	clk[IMX6QDL_CLK_LVDS2_IN] = imx_clk_gate2("lvds2_in", "anaclk2", base + 0x160, 13);
> +	imx_clk_gate2_exclusive(clk[IMX6QDL_CLK_LVDS1_GATE], clk[IMX6QDL_CLK_LVDS1_IN]);
> +	imx_clk_gate2_exclusive(clk[IMX6QDL_CLK_LVDS2_GATE], clk[IMX6QDL_CLK_LVDS2_IN]);
>  
>  	/*                                            name              parent_name        reg       idx */
>  	clk[IMX6QDL_CLK_PLL2_PFD0_352M] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus",     base + 0x100, 0);
--
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