linux-kernel - Re: [PATCH v6 40/41] ARM: da8xx-dt: switch to device tree clocks

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Date:   Tue, 23 Jan 2018 21:26:40 -0600
From:   David Lechner <david@...hnology.com>
To:     linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Adam Ford <aford173@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 40/41] ARM: da8xx-dt: switch to device tree clocks

On 01/20/2018 11:14 AM, David Lechner wrote:
> This removes all of the clock init code from da8xx-dt.c. This includes
> all of the OF_DEV_AUXDATA that was just used for looking up clocks.
> 
> Signed-off-by: David Lechner <david@...hnology.com>
> ---
> 
> v6 changes:
> - removed misleading statement from commit message
> 
>   arch/arm/mach-davinci/da8xx-dt.c | 61 +---------------------------------------
>   1 file changed, 1 insertion(+), 60 deletions(-)
> 
> diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c

>   static void __init da850_init_machine(void)
>   {
> -	/* All existing boards use 100MHz SATA refclkpn */
> -	static const unsigned long sata_refclkpn = 100 * 1000 * 1000;
> -
> -	int ret;
> -
> -	ret = da8xx_register_usb20_phy_clk(false);
> -	if (ret)
> -		pr_warn("%s: registering USB 2.0 PHY clock failed: %d",
> -			__func__, ret);
> -	ret = da8xx_register_usb11_phy_clk(false);
> -	if (ret)
> -		pr_warn("%s: registering USB 1.1 PHY clock failed: %d",
> -			__func__, ret);
> -
> -	ret = da850_register_sata_refclk(sata_refclkpn);
> -	if (ret)
> -		pr_warn("%s: registering SATA REFCLK failed: %d",
> -			__func__, ret);
> -
> -	of_platform_default_populate(NULL, da850_auxdata_lookup, NULL);
> +	of_platform_default_populate(NULL, NULL, NULL);

of_platform_default_populate() can actually be removed completely.
of_platform_default_populate_init() is called implicitly during
arch_initcall_sync

>   	davinci_pm_init();
>   	pdata_quirks_init();
>   }