linux-kernel - Re: [PATCH 0/3] clk: imx: Make all the parent

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Message-ID: <20181217113539.nfwp4knbx3luxoqn@fsr-ub1664-175>
Date:   Mon, 17 Dec 2018 11:35:40 +0000
From:   Abel Vesa <abel.vesa@....com>
To:     Stephen Boyd <sboyd@...nel.org>
CC:     Aisheng Dong <aisheng.dong@....com>,
        Sascha Hauer <kernel@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH 0/3] clk: imx: Make all the parent_names arrays be const
 pointers

On 18-12-14 13:08:37, Stephen Boyd wrote:
> Quoting Abel Vesa (2018-12-14 07:30:08)
> > This is mainly to shut up the checkpatch.pl script warnings about the
> > "static const char *" needing to be "static const char * const".
> > 
> > Abel Vesa (3):
> >   clk: imx: Make parent_names const pointer in composite-8m
> >   clk: imx: Make parents const pointer in mux wrappers
> >   clk: imx8mq: Make parent names arrays const pointers
> > 
> 
> I still see warnings though so there seems to be some more work to do.
> 
> drivers/clk/imx/clk-imx8mq.c:401:89: warning: passing argument 5 of 'imx_clk_mux2' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
>   clks[IMX8MQ_CLK_GPU_SHADER_SRC] = imx_clk_mux2("gpu_shader_src", base + 0x8200, 24, 3, imx8mq_gpu_shader_sels,  ARRAY_SIZE(imx8mq_gpu_shader_sels));
> 
Hmm, I guess you applied this on top of clk-imx8mq, right ?
This change is against linux-next. The actual problem is the imx_clk_mux2
which looks like this on branch clk-imx8mq:

static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg,  
                u8 shift, u8 width, const char **parents, int num_parents)   

but it looks like this on linux-next (which is exactly the same on clk-next):

static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg,  
                        u8 shift, u8 width, const char * const *parents,     
                        int num_parents)