Hi Viresh,
On Fri, Oct 19, 2012 at 7:14 PM, Viresh Kumar <viresh.ku...@linaro.org> wrote:
> On 19 October 2012 15:45, Shiraz Hashim <shiraz.has...@st.com> wrote:
>> diff --git a/Documentation/devicetree/bindings/pwm/spear-pwm.txt
>> b/Documentation/devicetree/bindings/pwm/spear-pwm.txt
>> + pwm: pwm@a8000000 {
>> + compatible ="st,spear320-pwm";
>> + reg = <0xa8000000 0x1000>;
>> + #pwm-cells = <2>;
>> + status = "disabled";
>
> Must remove disabled from here. Isn't it?
yes, would remove it.
>> diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c
>> +#include <linux/clk.h>
>> +#include <linux/err.h>
>> +#include <linux/io.h>
>> +#include <linux/ioport.h>
>> +#include <linux/kernel.h>
>> +#include <linux/math64.h>
>> +#include <linux/module.h>
>> +#include <linux/of.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/pwm.h>
>> +#include <linux/slab.h>
>> +#include <linux/types.h>
>> +
>> +#define NUM_PWM 4
>> +
>> +/* PWM registers and bits definitions */
>> +#define PWMCR 0x00 /* Control Register */
>> +#define PWMCR_PWM_ENABLE 0x1
>> +#define PWMCR_PRESCALE_SHIFT 2
>> +#define PWMCR_MIN_PRESCALE 0x00
>> +#define PWMCR_MAX_PRESCALE 0x3FFF
>
> I would do it as to make it more readable, your call:
>
> #define PWMCR 0x00 /* Control Register */
> #define PWMCR_PWM_ENABLE 0x1
> #define PWMCR_PRESCALE_SHIFT 2
> #define PWMCR_MIN_PRESCALE 0x00
> #define PWMCR_MAX_PRESCALE 0x3FFF
There are some who don't like this (personally I see it quite clear),
so it becomes a matter of choice. I intentionaly prefixed each
bit definition by its register name to make association clear.
>
>> +static int spear_pwm_remove(struct platform_device *pdev)
>> +{
>> + struct spear_pwm_chip *pc = platform_get_drvdata(pdev);
>> + int i;
>> +
>> + if (WARN_ON(!pc))
>> + return -ENODEV;
>
> Sorry for not asking earlier, how can this be true anytime?
Probably never :), just copied from some other implementation.
Would remove this in V3.
--
regards
Shiraz Hashim
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