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From: Wenyou Yang <wenyou.yang@atmel.com> To: <nicolas.ferre@atmel.com>, <linux@arm.linux.org.uk> Cc: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <alexandre.belloni@free-electrons.com>, <sylvain.rochet@finsecur.com>, <peda@axentia.se>, <wenyou.yang@atmel.com> Subject: [PATCH 04/12] pm: at91: move the copying the sram function to the sram initializationi phase Date: Tue, 20 Jan 2015 16:16:57 +0800 [thread overview] Message-ID: <1421741825-18226-5-git-send-email-wenyou.yang@atmel.com> (raw) In-Reply-To: <1421741825-18226-1-git-send-email-wenyou.yang@atmel.com> 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 0990486..609a4f8 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -169,10 +169,6 @@ 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); @@ -280,6 +276,9 @@ 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 */ + memcpy(slow_clock, at91_slow_clock, at91_slow_clock_sz); + put_node: of_node_put(node); } -- 1.7.9.5
next prev parent reply other threads:[~2015-01-20 8:19 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-01-20 8:16 [PATCH 00/12] AT91 pm cleanup for 3.20 Wenyou Yang 2015-01-20 8:16 ` [PATCH 01/12] pm: at91: pm_slowclock: improve reliability of suspend/resume Wenyou Yang 2015-01-20 8:16 ` [PATCH 02/12] pm: at91: Workaround DDRSDRC self-refresh bug with LPDDR1 memories Wenyou Yang 2015-01-20 8:16 ` [PATCH 03/12] pm: at91: pm_slowclock: remove the unused code related with SLOWDOWN_MASTER_CLOCK Wenyou Yang 2015-01-20 8:16 ` Wenyou Yang [this message] 2015-01-20 8:16 ` [PATCH 05/12] ARM: at91: move select SRAM to ARCH_AT91 Wenyou Yang 2015-01-23 10:24 ` Alexandre Belloni 2015-01-26 1:10 ` Yang, Wenyou 2015-01-20 8:16 ` [PATCH 06/12] pm: at91: remove the config item CONFIG_AT91_SLOW_CLOCK Wenyou Yang 2015-01-20 8:17 ` [PATCH 07/12] pm: at91: the standby mode uses the same sram function as the suspend to memory mode Wenyou Yang 2015-01-23 10:30 ` Alexandre Belloni 2015-01-23 16:50 ` Sylvain Rochet 2015-01-23 23:13 ` Alexandre Belloni 2015-01-27 3:08 ` Yang, Wenyou 2015-01-23 17:32 ` Sylvain Rochet 2015-01-23 23:02 ` Alexandre Belloni 2015-01-26 3:08 ` Yang, Wenyou 2015-01-26 3:06 ` Yang, Wenyou 2015-01-20 8:17 ` [PATCH 08/12] pm: at91: rename file name: pm_slowclock.S -->pm_suspend.S Wenyou Yang 2015-01-23 19:17 ` Sylvain Rochet 2015-01-23 23:17 ` Alexandre Belloni 2015-01-25 13:30 ` Sylvain Rochet 2015-01-26 1:25 ` Yang, Wenyou 2015-01-20 8:17 ` [PATCH 09/12] pm: at91: rename function name: at91_slow_clock()-->at91_pm_suspend_sram_fn Wenyou Yang 2015-01-20 8:24 ` Wenyou Yang 2015-01-20 8:24 ` [PATCH 10/12] pm: at91: remove the at91_xxx_standby() function definitions in the pm.h Wenyou Yang 2015-01-20 8:25 ` [PATCH 11/12] pm: at91: remove the struct ramc_ids .data at91_xxx_standby members Wenyou Yang 2015-01-20 8:26 ` [PATCH 12/12] pm: at91: amend the pm_suspend entry for at91_cpuidle_device Wenyou Yang
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