linux-kernel - Re: [PATCH v2 2/5] clk: aspeed: Register core clocks

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Message-ID: <20171002213958.GR457@codeaurora.org>
Date:   Mon, 2 Oct 2017 14:39:58 -0700
From:   Stephen Boyd <sboyd@...eaurora.org>
To:     Joel Stanley <joel@....id.au>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Andrew Jeffery <andrew@...id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Jeremy Kerr <jk@...abs.org>,
        Rick Altherr <raltherr@...gle.com>,
        Ryan Chen <ryan_chen@...eedtech.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v2 2/5] clk: aspeed: Register core clocks

On 09/21, Joel Stanley wrote:
> @@ -112,9 +115,137 @@ static const struct aspeed_gate_data aspeed_gates[] __initconst = {
>  	/* 31: reserved */
>  };
>  
> +static const struct clk_div_table ast2400_div_table[] = {
> +	{ 0x0, 2 },
> +	{ 0x1, 4 },
> +	{ 0x2, 6 },
> +	{ 0x3, 8 },
> +	{ 0x4, 10 },
> +	{ 0x5, 12 },
> +	{ 0x6, 14 },
> +	{ 0x7, 16 },
> +	{ 0 }
> +};
> +
> +static const struct clk_div_table ast2500_div_table[] = {
> +	{ 0x0, 4 },
> +	{ 0x1, 8 },
> +	{ 0x2, 12 },
> +	{ 0x3, 16 },
> +	{ 0x4, 20 },
> +	{ 0x5, 24 },
> +	{ 0x6, 28 },
> +	{ 0x7, 32 },
> +	{ 0 }
> +};
> +
> +static struct clk_hw *aspeed_calc_pll(const char *name, u32 val)
> +{
> +	unsigned int mult, div;
> +
> +	if (val & BIT(20)) {

#define for these BIT() things please. Or a comment, but #define
is probably better. Just improves readability.

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