linux-kernel - Re: [PATCH v2 06/23] clk: rockchip: support more clks for rv1108

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Date:   Tue, 08 Aug 2017 00:57:45 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Andy Yan <andy.yan@...k-chips.com>
Cc:     robh+dt@...nel.org, shawn.lin@...k-chips.com,
        zhangqing@...k-chips.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, mturquette@...libre.com,
        sboyd@...eaurora.org, linux-rockchip@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 06/23] clk: rockchip: support more clks for rv1108

Hi Andy,

Am Mittwoch, 2. August 2017, 16:33:57 CEST schrieb Andy Yan:
> From: Elaine Zhang <zhangqing@...k-chips.com>
> 
> Added the description of the missing clock,
> make the clock tree more complete.
> 
> Signed-off-by: Elaine Zhang <zhangqing@...k-chips.com>
> Signed-off-by: Andy Yan <andy.yan@...k-chips.com>

[...]

>  	FACTOR(0, "xin12m", "xin24m", 0, 1, 2),
>  
> -	COMPOSITE(0, "i2s0_src", mux_pll_src_2plls_p, 0,
> +	/* PD_BUS */
> +	GATE(0, "aclk_bus_src_gpll", "gpll", CLK_IGNORE_UNUSED,
> +			RV1108_CLKGATE_CON(1), 0, GFLAGS),
> +	GATE(0, "aclk_bus_src_apll", "apll", CLK_IGNORE_UNUSED,
> +			RV1108_CLKGATE_CON(1), 1, GFLAGS),
> +	GATE(0, "aclk_bus_src_dpll", "dpll", CLK_IGNORE_UNUSED,
> +			RV1108_CLKGATE_CON(1), 2, GFLAGS),
> +	COMPOSITE_NOGATE(ACLK_PRE, "aclk_bus_pre", mux_aclk_bus_src_p, 0,
> +			RV1108_CLKSEL_CON(2), 8, 2, MFLAGS, 0, 5, DFLAGS),
> +	COMPOSITE_NOMUX(HCLK_BUS, "hclk_bus_pre", "aclk_bus_pre", 0,
> +			RV1108_CLKSEL_CON(3), 0, 5, DFLAGS,
> +			RV1108_CLKGATE_CON(1), 4, GFLAGS),

you're adding a (new / second) hclk_bus_pre here, but only drop the
old in patch 7. Please structure patch-contents in a way that each patch
is self-contained and works on its own ... aka the clock tree should not
get worse if only patch 6 is applied (like in a random git bisect), but
here the state is bad between these 2 patches.

hclk_bus_pre also is only _one_ example and there are probably more of
those hiding in these clock patches. So please fix these issues.


Thanks
Heiko