Hello,
On 02/26/2011 03:24 PM, Russell King - ARM Linux wrote:
> On Sat, Feb 26, 2011 at 11:45:55AM +0900, Sangbeom Kim wrote:
>> +static irqreturn_t s5p_clock_event_isr(int irq, void *dev_id)
>> +{
>> + struct clock_event_device *evt = &time_event_device;
>
> struct clock_event_device *evt = dev_id;
>
>> +
>> + evt->event_handler(evt);
>> +
>> + return IRQ_HANDLED;
>> +}
>> +
>> +static struct irqaction s5p_clock_event_irq = {
>> + .name = "s5p_time_irq",
>> + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
>> + .handler = s5p_clock_event_isr,
>
> .dev_id = &time_event_device,
>
>> +};
> ...
>> +static void __init s5p_timer_resources(void)
>> +{
>> + struct platform_device tmpdev;
>> +
>> + tmpdev.dev.bus = &platform_bus_type;
>> +
>> + timerclk = clk_get(NULL, "timers");
>> + if (IS_ERR(timerclk))
>> + panic("failed to get timers clock for system timer");
>> +
>> + clk_enable(timerclk);
>> +
>> + tmpdev.id = timer_source.event_id;
>
> So Samsung clock stuff is still being idiotic. Will this ever be fixed?
>
Are there any serious difficulties preventing converting Samsung platforms
to clkdev? I don't seem to be aware of any.
Shortcomings of current clk API appeared few times already, and this one
being a disgraceful example.
>> + tin_event = clk_get(&tmpdev.dev, "pwm-tin");
>> + if (IS_ERR(tin_event)) {
>> + clk_put(tin_event);
>
> Don't clk_put errors.
>
>> + panic("failed to get pwm-tin2 clock for system timer");
>> + }
>> +
>> + tdiv_event = clk_get(&tmpdev.dev, "pwm-tdiv");
>> + if (IS_ERR(tdiv_event)) {
>> + clk_put(tdiv_event);
>
> Ditto.
>
>> + panic("failed to get pwm-tdiv2 clock for system timer");
>> + }
>> +
>> + clk_enable(tin_event);
>> +
>> + tmpdev.id = timer_source.source_id;
>> + tin_source = clk_get(&tmpdev.dev, "pwm-tin");
>> + if (IS_ERR(tin_source)) {
>> + clk_put(tin_source);
>
> Ditto.
>
>> + panic("failed to get pwm-tin4 clock for system timer");
>> + }
>> +
>> + tdiv_source = clk_get(&tmpdev.dev, "pwm-tdiv");
>> + if (IS_ERR(tdiv_source)) {
>> + clk_put(tdiv_source);
>
> Ditto.
--
Sylwester Nawrocki
Samsung Poland R&D Center
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