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SubjectRe: [PATCH v2 04/12] pm: at91: move the copying the sram function to the sram initializationi phase
Hello.

On 1/26/2015 12:40 PM, Wenyou Yang wrote:

> To decrease the suspend time, move the copying the sram function
> to the sram initialization phase, instead of every time go to suspend.

> Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> ---
> arch/arm/mach-at91/pm.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)

> diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
> index 5dd4e41..409185e 100644
> --- a/arch/arm/mach-at91/pm.c
> +++ b/arch/arm/mach-at91/pm.c
> @@ -161,10 +161,6 @@ static int at91_pm_enter(suspend_state_t state)
> * turning off the main oscillator; reverse on wakeup.
> */
> if (slow_clock) {
> -#ifdef CONFIG_AT91_SLOW_CLOCK
> - /* copy slow_clock handler to SRAM, and call it */
> - memcpy(slow_clock, at91_slow_clock, at91_slow_clock_sz);
> -#endif
> slow_clock(at91_pmc_base, at91_ramc_base[0],
> at91_ramc_base[1],
> at91_pm_data.memctrl);
> @@ -272,6 +268,9 @@ static void __init at91_pm_sram_init(void)
> sram_pbase = gen_pool_virt_to_phys(sram_pool, sram_base);
> slow_clock = __arm_ioremap_exec(sram_pbase, at91_slow_clock_sz, false);
>
> + /* Copy slow_clock handler to SRAM, and call it */

You're not calling it here.

> + memcpy(slow_clock, at91_slow_clock, at91_slow_clock_sz);
> +
> put_node:
> of_node_put(node);
> }

WBR, Sergei



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