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

[Bartosz Golaszewski]

2018-01-24 4:26 GMT+01:00 David Lechner <david@xxxxxxxxxxxxxx>:
> 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@xxxxxxxxxxxxxx>
>> ---
>>
>> 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();
>>   }

Hi David,

this patch breaks nand on da850-lcdk (and probably on da850-evm) since
the nand driver can no longer clk_get() the nand clock. We would need
to keep the dev_auxdata at least for aemif.

Thanks,
Bartosz