linux-kernel - Re: [RESEND (again) PATCH] clkdev: don't call __of_clk_get_by_name() unnecessarily from clk

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Date:   Wed, 27 Jun 2018 16:55:27 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     David Lechner <david@...hnology.com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Russell King <linux@...linux.org.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Kevin Hilman <khilman@...libre.com>
Subject: Re: [RESEND (again) PATCH] clkdev: don't call __of_clk_get_by_name()
 unnecessarily from clk_get()

On Tuesday 26 June 2018 04:32 AM, David Lechner wrote:
> On 06/25/2018 11:04 AM, Bartosz Golaszewski wrote:
>> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>>
>> The way this function is implemented caused some confusion when
>> converting the TI DaVinci platform to using the common clock framework.
>>
>> Current kernel supports booting DaVinci boards both in device tree as
>> well as legacy, board-file mode. In the latter, we always end up
>> calling clk_get_sys() as of_node is NULL and __of_clk_get_by_name()
>> returns -ENOENT.
>>
>> It was not obvious at first glance how clk_get(dev, NULL) will work in
>> board-file mode since we always call __of_clk_get_by_name(). Let's make
>> it clearer by checking if of_node is NULL and skipping right to
>> clk_get_sys().
>>
>> Cc: Sekhar Nori <nsekhar@...com>
>> Cc: Kevin Hilman <khilman@...libre.com>
>> Cc: David Lechner <david@...hnology.com>
>> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
>> ---
> 
> Reviewed-by: David Lechner <david@...hnology.com>

I think Russell previously said that the patch looks good to him. So you
can probably just add it to his patch tracker.

http://www.arm.linux.org.uk/developer/patches/add.php

FWIW, you can also add:

Reviewed-by: Sekhar Nori <nsekhar@...com>

Thanks,
Sekhar