On 18/07/13 09:24, Sudeep KarkadaNagesha wrote:
> On 17/07/13 15:43, Andrew Lunn wrote:
>> On Wed, Jul 17, 2013 at 03:06:20PM +0100, sudeep.karkadanage...@arm.com
>> wrote:
>>> From: Sudeep KarkadaNagesha <sudeep.karkadanage...@arm.com>
>>>
[...]
>>> diff --git a/drivers/cpufreq/kirkwood-cpufreq.c
>>> b/drivers/cpufreq/kirkwood-cpufreq.c
>>> index c233ea6..18aa3eb 100644
>>> --- a/drivers/cpufreq/kirkwood-cpufreq.c
>>> +++ b/drivers/cpufreq/kirkwood-cpufreq.c
>>> @@ -13,6 +13,7 @@
>>> #include <linux/module.h>
>>> #include <linux/clk.h>
>>> #include <linux/clk-provider.h>
>>> +#include <linux/cpu.h>
>>> #include <linux/cpufreq.h>
>>> #include <linux/of.h>
>>> #include <linux/platform_device.h>
>>> @@ -165,6 +166,7 @@ static struct cpufreq_driver kirkwood_cpufreq_driver = {
>>> static int kirkwood_cpufreq_probe(struct platform_device *pdev)
>>> {
>>> struct device_node *np;
>>> + struct device *cpu_dev;
>>> struct resource *res;
>>> int err;
>>>
>>> @@ -175,9 +177,17 @@ static int kirkwood_cpufreq_probe(struct
>>> platform_device *pdev)
>>> if (IS_ERR(priv.base))
>>> return PTR_ERR(priv.base);
>>>
>>> - np = of_find_node_by_path("/cpus/cpu@0");
>>> - if (!np)
>>> + cpu_dev = get_cpu_device(0);
>>> + if (!cpu_dev) {
>>> + dev_err(&pdev->dev, "failed to get cpu device\n");
>>> return -ENODEV;
>>> + }
>>> +
>>> + np = of_node_get(cpu_dev->of_node);
>>> + if (!np) {
>>> + dev_err(&pdev->dev, "failed to get cpu device node\n");
>>> + return -ENODEV;
>>> + }
>>
>> Hi Sudeep
>>
>> Are we not going a bit backwards here? You are replacing two lines
>> with 10 lines.
>>
>> How about putting these 10 lines into some helper,
>> of_get_cpu_device()? It would be useful for spear, kirkwood and
>> imx6q, and maybe others.
>>
> Yes I realised that after making changes to this and pmac32 drivers. I
> have already made those changes in v3. I am waiting for more response
> before posting them.
>
I thought of placing this helper in include/linux/of_device.h but I see:
#include <linux/of_platform.h> /* temporary until merge */
Does this mean of_platform.h and of_device.h will be merged ?
If so, which will be the final merged one ? I would like to avoid
changing all the header file inclusions later in users of this new helper.
Regards,
Sudeep
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