On 04/02/2014 02:32 AM, Guenter Roeck wrote:
> On 04/01/2014 04:20 AM, Michal Simek wrote:
>> Hi Guenter,
>>
>>>> +/**
>>>> + * struct cdns_wdt - Watchdog device structure
>>>> + * @regs: baseaddress of device
>>>> + * @rst: reset flag
>>>> + * @clk: struct clk * of a clock source
>>>> + * @prescaler: for saving prescaler value
>>>> + * @ctrl_clksel: counter clock prescaler selection
>>>> + * @io_lock: spinlock for IO register access
>>>> + * @cdns_wdt_device: watchdog device structure
>>>> + * @cdns_wdt_notifier: notifier structure
>>>> + *
>>>> + * Structure containing parameters specific to cadence watchdog.
>>>> + */
>>>> +struct cdns_wdt {
>>>> + void __iomem *regs;
>>>> + u32 rst;
>>>> + struct clk *clk;
>>>> + u32 prescaler;
>>>> + u32 ctrl_clksel;
>>>> + spinlock_t io_lock;
>>>> + struct watchdog_device cdns_wdt_device;
>>>> + struct notifier_block cdns_wdt_notifier;
>>>> +};
>>>> +
>>>> +/* Write access to Registers */
>>>> +static inline void cdns_wdt_writereg(void __iomem *offset, u32 val)
>>>> +{
>>>> + writel_relaxed(val, offset);
>>>> +}
>>>> +
>>>
>>> Not really sure if this function provides any value.
>>
>> I can't see any problem to use this helper IO function
>> but maybe we could do it a little bit differently.
>> Currently implementation is just passing values to writel_relaxed()
>>
>> What about to do it like this?
>>
>> static inline void cdns_wdt_writereg(struct cdns_wdt *wdt, u32 offset, u32 val)
>> {
>> writel_relaxed(val, wdt->regs + offset);
>> }
>>
> Yes, that would make more sense.
ok good.
Harini: Please use this version instead.
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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