Re: [PATCH 2/2] clk: exynos-audss: Update as per existing framework

From: Tushar Behera
Date: Fri Jul 11 2014 - 08:07:56 EST

On 07/11/2014 04:10 PM, Sylwester Nawrocki wrote:
> Hi Tushar,
> On 11/07/14 11:37, Tushar Behera wrote:
>> Change exynos-audss clock driver as per existing clock framework from
>> the existing module driver framework.
> Can you explain what's the actual issue you're trying to solve with that
> patch ? What's the problem with this driver being a platform driver ?
> It feels we're moving in circles here, see
> commit b37a4224104568198b93fb9831224cfe7d83fff8
> Author: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
> Date: Wed Sep 25 14:12:47 2013 -0700
> clk: exynos-audss: convert to platform device
> The Exynos AudioSS clock controller will later be modified to allow
> input clocks to be specified via device-tree in order to support
> multiple Exynos SoCs. This will introduce a dependency on the core
> SoC clock controller being initialized first so that the AudioSS driver
> can look up its input clocks, but the order in which clock providers
> are probed in of_clk_init() is not guaranteed. Since deferred probing
> is not supported in of_clk_init() and the AudioSS block is not the core
> controller, we can initialize it later as a platform device.
> Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
> Acked-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> Reviewed-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> Acked-by: Mike Turquette <mturquette@xxxxxxxxxx>
> Acked-by: Kukjin Kim <>
> Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> I realize of_clk_init() now handles better clock provider dependencies,
> nevertheless do we really need all this churn ?

I have sent v2 of the patchset while retaining the platform driver
infrastructure. Awaiting your review comments on that.

> --
> Thanks,
> Sylwester

Tushar Behera
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