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From: Abel Vesa <abel.vesa@nxp.com>
To: Peng Fan <peng.fan@nxp.com>
Cc: "sboyd@kernel.org" <sboyd@kernel.org>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	dl-linux-imx <linux-imx@nxp.com>,
	Anson Huang <anson.huang@nxp.com>, Jacky Bai <ping.bai@nxp.com>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Leonard Crestez <leonard.crestez@nxp.com>
Subject: Re: [PATCH] clk: imx: clk-composite-8m: add lock to gate/mux
Date: Fri, 1 Nov 2019 10:42:49 +0000	[thread overview]
Message-ID: <20191101104248.qqpt3hg437rccsri@fsr-ub1664-175> (raw)
In-Reply-To: <1572603166-24594-1-git-send-email-peng.fan@nxp.com>

On 19-11-01 10:16:19, Peng Fan wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> There is a lock to diviver in the composite driver, but that's not
> enought. lock to gate/mux are also needed to provide exclusive access
> to the register.
> 
> Fixes: d3ff9728134e ("clk: imx: Add imx composite clock")
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

Looks good to me.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>

> ---
>  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
> 

  reply	other threads:[~2019-11-01 10:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-01 10:16 [PATCH] clk: imx: clk-composite-8m: add lock to gate/mux Peng Fan
2019-11-01 10:42 ` Abel Vesa [this message]
2019-12-02  8:19 ` Shawn Guo
     [not found]   ` <20191203090339.A36CA20661@mail.kernel.org>
2019-12-04  1:56     ` Shawn Guo

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