[v4,3/8] clk: add support for clocks provided by SCP(System Control Processor)

Commit Message

Sudeep Holla July 22, 2015, 2:19 p.m. UTC

On 21/07/15 19:05, Stephen Boyd wrote:
> On 07/20/2015 01:54 AM, Sudeep Holla wrote:
>>
>>
>> On 17/07/15 19:13, Stephen Boyd wrote:
>>> On 07/17/2015 04:17 AM, Sudeep Holla wrote:
>>
>> [...]
>>
>>>>
>>>> determine_rate change shouldn't affect SCPI clock driver but I remember
>>>> seeing round_rate change too on the list which returns value using the
>>>> argument from Boris. Is that planned for v4.3 ? I would need the stable
>>>> branch from this clk_hw_set_rate_range if you decide to push. Let me
>>>> know your preferences. I will post the updated version of the patch
>>>> accordingly.
>>>>
>>>
>>> We're not going to change round_rate() so it sounds like you don't need
>>> a stable branch. But you would need this new consumer API. So you still
>>> need a branch right?
>>>
>>
>> I am fine either way. If no one else need the stable branch to be shared
>> with arm-soc, I prefer to use clock consumer API for now to avoid all
>> the troubles to you guys and switch to provider API later. I will post
>> it once the both this driver and that provider API is merged, if that's
>> fine with you ?
>
> Ok. Sounds fine as long as we don't forget.
>

It's ready indeed :), will post it when everything is in place.

Regards,
Sudeep

--->8

 From 3ddf7fe5b1286efa712d4f2ba8108ce1855f3e74 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <[e-mail]>
Date: Fri, 17 Jul 2015 12:19:54 +0100
Subject: [PATCH] clk: scpi: use provider clk_hw_set_rate_range API 
instead of
  consumer API

SCPI clock provider uses the consumer API clk_set_rate_range to set
min/max rate constraints on the clocks it provides.

Commit c87c640f915a ("clk: Allow providers to configure min/max rates")
added a separate provider API clk_hw_set_rate_range to set the min/max
rate of a clock.

This patch switches away from clk_set_rate_range consumer API to
clk_hw_set_rate_range provider API.

Cc: Stephen Boyd <[e-mail]>
Signed-off-by: Sudeep Holla <[e-mail]>
---
  drivers/clk/clk-scpi.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/clk/clk-scpi.c b/drivers/clk/clk-scpi.c
index 06d0558e8f46..f7c8b7a03cfe 100644
--- a/drivers/clk/clk-scpi.c
+++ b/drivers/clk/clk-scpi.c
@@ -174,7 +174,7 @@  scpi_clk_ops_init(struct device *dev, const struct 
of_device_id *match,

  	clk = devm_clk_register(dev, &sclk->hw);
  	if (!IS_ERR(clk) && max)
-		clk_set_rate_range(clk, min, max);
+		clk_hw_set_rate_range(&sclk->hw, min, max);
  	return clk;
  }