linux-kernel - Re: [PATCH] clk: imx: clk-composite-8m: add lock to gate/mux

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Date:   Mon, 2 Dec 2019 16:19:49 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Peng Fan <peng.fan@....com>
Cc:     "sboyd@...nel.org" <sboyd@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Abel Vesa <abel.vesa@....com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        Anson Huang <anson.huang@....com>,
        Jacky Bai <ping.bai@....com>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Leonard Crestez <leonard.crestez@....com>
Subject: Re: [PATCH] clk: imx: clk-composite-8m: add lock to gate/mux

On Fri, Nov 01, 2019 at 10:16:19AM +0000, Peng Fan wrote:
> From: Peng Fan <peng.fan@....com>
> 
> There is a lock to diviver in the composite driver, but that's not

s/diviver/divider

> enought. lock to gate/mux are also needed to provide exclusive access

s/enought/enough

> to the register.
> 
> Fixes: d3ff9728134e ("clk: imx: Add imx composite clock")
> Signed-off-by: Peng Fan <peng.fan@....com>

Other than above typos,

Acked-by: Shawn Guo <shawnguo@...nel.org>

Stephen,

I assume you will take it a fix.  Otherwise, please let me know.

Shawn

> ---
>  drivers/clk/imx/clk-composite-8m.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/clk/imx/clk-composite-8m.c b/drivers/clk/imx/clk-composite-8m.c
> index e0f25983e80f..20f7c91c03d2 100644
> --- a/drivers/clk/imx/clk-composite-8m.c
> +++ b/drivers/clk/imx/clk-composite-8m.c
> @@ -142,6 +142,7 @@ struct clk_hw *imx8m_clk_hw_composite_flags(const char *name,
>  	mux->reg = reg;
>  	mux->shift = PCG_PCS_SHIFT;
>  	mux->mask = PCG_PCS_MASK;
> +	mux->lock = &imx_ccm_lock;
>  
>  	div = kzalloc(sizeof(*div), GFP_KERNEL);
>  	if (!div)
> @@ -161,6 +162,7 @@ struct clk_hw *imx8m_clk_hw_composite_flags(const char *name,
>  	gate_hw = &gate->hw;
>  	gate->reg = reg;
>  	gate->bit_idx = PCG_CGC_SHIFT;
> +	gate->lock = &imx_ccm_lock;
>  
>  	hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
>  			mux_hw, &clk_mux_ops, div_hw,
> -- 
> 2.16.4
>