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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 22:00:26 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 22:00:26 +0400 |
commit | 44c916d58b9ef1f2c4aec2def57fa8289c716a60 (patch) | |
tree | e4c886dd0948eefeed883f66c9a21f39a5731103 /arch/arm/mach-s5p64x0/pm.c | |
parent | 889fa782bf8ebe7c0d0ed0a9429bf43197f0f64e (diff) | |
parent | c4846a7823bfd34ecb2dc56b025e19285432d08d (diff) | |
download | linux-44c916d58b9ef1f2c4aec2def57fa8289c716a60.tar.xz |
Merge tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This merge window brings a good size of cleanups on various platforms.
Among the bigger ones:
- Removal of Samsung s5pc100 and s5p64xx platforms. Both of these
have lacked active support for quite a while, and after asking
around nobody showed interest in keeping them around. If needed,
they could be resurrected in the future but it's more likely that
we would prefer reintroduction of them as DT and
multiplatform-enabled platforms instead.
- OMAP4 controller code register define diet. They defined a lot of
registers that were never actually used, etc.
- Move of some of the Tegra platform code (PMC, APBIO, fuse,
powergate) to drivers/soc so it can be shared with 64-bit code.
This also converts them over to traditional driver models where
possible.
- Removal of legacy gpio-samsung driver, since the last users have
been removed (moved to pinctrl)
Plus a bunch of smaller changes for various platforms that sort of
dissapear in the diffstat for the above. clps711x cleanups, shmobile
header file refactoring/moves for multiplatform friendliness, some
misc cleanups, etc"
* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
drivers: CCI: Correct use of ! and &
video: clcd-versatile: Depend on ARM
video: fix up versatile CLCD helper move
MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
MAINTAINERS: Remove Kirkwood
ARM: tegra: Convert PMC to a driver
soc/tegra: fuse: Set up in early initcall
ARM: tegra: Always lock the CPU reset vector
ARM: tegra: Setup CPU hotplug in a pure initcall
soc/tegra: Implement runtime check for Tegra SoCs
soc/tegra: fuse: fix dummy functions
soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
soc/tegra: Add efuse and apbmisc bindings
soc/tegra: Add efuse driver for Tegra
ARM: tegra: move fuse exports to soc/tegra/fuse.h
ARM: tegra: export apb dma readl/writel
ARM: tegra: Use a function to get the chip ID
ARM: tegra: Sort includes alphabetically
ARM: tegra: Move includes to include/soc/tegra
...
Diffstat (limited to 'arch/arm/mach-s5p64x0/pm.c')
-rw-r--r-- | arch/arm/mach-s5p64x0/pm.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/arch/arm/mach-s5p64x0/pm.c b/arch/arm/mach-s5p64x0/pm.c deleted file mode 100644 index ec8229cee716..000000000000 --- a/arch/arm/mach-s5p64x0/pm.c +++ /dev/null @@ -1,202 +0,0 @@ -/* linux/arch/arm/mach-s5p64x0/pm.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5P64X0 Power Management Support - * - * Based on arch/arm/mach-s3c64xx/pm.c by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/suspend.h> -#include <linux/syscore_ops.h> -#include <linux/io.h> - -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/wakeup-mask.h> - -#include <mach/regs-clock.h> -#include <mach/regs-gpio.h> - -static struct sleep_save s5p64x0_core_save[] = { - SAVE_ITEM(S5P64X0_APLL_CON), - SAVE_ITEM(S5P64X0_MPLL_CON), - SAVE_ITEM(S5P64X0_EPLL_CON), - SAVE_ITEM(S5P64X0_EPLL_CON_K), - SAVE_ITEM(S5P64X0_CLK_SRC0), - SAVE_ITEM(S5P64X0_CLK_SRC1), - SAVE_ITEM(S5P64X0_CLK_DIV0), - SAVE_ITEM(S5P64X0_CLK_DIV1), - SAVE_ITEM(S5P64X0_CLK_DIV2), - SAVE_ITEM(S5P64X0_CLK_DIV3), - SAVE_ITEM(S5P64X0_CLK_GATE_MEM0), - SAVE_ITEM(S5P64X0_CLK_GATE_HCLK1), - SAVE_ITEM(S5P64X0_CLK_GATE_SCLK1), -}; - -static struct sleep_save s5p64x0_misc_save[] = { - SAVE_ITEM(S5P64X0_AHB_CON0), - SAVE_ITEM(S5P64X0_SPCON0), - SAVE_ITEM(S5P64X0_SPCON1), - SAVE_ITEM(S5P64X0_MEM0CONSLP0), - SAVE_ITEM(S5P64X0_MEM0CONSLP1), - SAVE_ITEM(S5P64X0_MEM0DRVCON), - SAVE_ITEM(S5P64X0_MEM1DRVCON), -}; - -/* DPLL is present only in S5P6450 */ -static struct sleep_save s5p6450_core_save[] = { - SAVE_ITEM(S5P6450_DPLL_CON), - SAVE_ITEM(S5P6450_DPLL_CON_K), -}; - -void s3c_pm_configure_extint(void) -{ - __raw_writel(s3c_irqwake_eintmask, S5P64X0_EINT_WAKEUP_MASK); -} - -void s3c_pm_restore_core(void) -{ - __raw_writel(0, S5P64X0_EINT_WAKEUP_MASK); - - s3c_pm_do_restore_core(s5p64x0_core_save, - ARRAY_SIZE(s5p64x0_core_save)); - - if (soc_is_s5p6450()) - s3c_pm_do_restore_core(s5p6450_core_save, - ARRAY_SIZE(s5p6450_core_save)); - - s3c_pm_do_restore(s5p64x0_misc_save, ARRAY_SIZE(s5p64x0_misc_save)); -} - -void s3c_pm_save_core(void) -{ - s3c_pm_do_save(s5p64x0_misc_save, ARRAY_SIZE(s5p64x0_misc_save)); - - if (soc_is_s5p6450()) - s3c_pm_do_save(s5p6450_core_save, - ARRAY_SIZE(s5p6450_core_save)); - - s3c_pm_do_save(s5p64x0_core_save, ARRAY_SIZE(s5p64x0_core_save)); -} - -static int s5p64x0_cpu_suspend(unsigned long arg) -{ - unsigned long tmp = 0; - - /* - * Issue the standby signal into the pm unit. Note, we - * issue a write-buffer drain just in case. - */ - asm("b 1f\n\t" - ".align 5\n\t" - "1:\n\t" - "mcr p15, 0, %0, c7, c10, 5\n\t" - "mcr p15, 0, %0, c7, c10, 4\n\t" - "mcr p15, 0, %0, c7, c0, 4" : : "r" (tmp)); - - pr_info("Failed to suspend the system\n"); - return 1; /* Aborting suspend */ -} - -/* mapping of interrupts to parts of the wakeup mask */ -static struct samsung_wakeup_mask s5p64x0_wake_irqs[] = { - { .irq = IRQ_RTC_ALARM, .bit = S5P64X0_PWR_CFG_RTC_ALRM_DISABLE, }, - { .irq = IRQ_RTC_TIC, .bit = S5P64X0_PWR_CFG_RTC_TICK_DISABLE, }, - { .irq = IRQ_HSMMC0, .bit = S5P64X0_PWR_CFG_MMC0_DISABLE, }, - { .irq = IRQ_HSMMC1, .bit = S5P64X0_PWR_CFG_MMC1_DISABLE, }, -}; - -static void s5p64x0_pm_prepare(void) -{ - u32 tmp; - - samsung_sync_wakemask(S5P64X0_PWR_CFG, - s5p64x0_wake_irqs, ARRAY_SIZE(s5p64x0_wake_irqs)); - - /* store the resume address in INFORM0 register */ - __raw_writel(virt_to_phys(s3c_cpu_resume), S5P64X0_INFORM0); - - /* setup clock gating for FIMGVG block */ - __raw_writel((__raw_readl(S5P64X0_CLK_GATE_HCLK1) | \ - (S5P64X0_CLK_GATE_HCLK1_FIMGVG)), S5P64X0_CLK_GATE_HCLK1); - __raw_writel((__raw_readl(S5P64X0_CLK_GATE_SCLK1) | \ - (S5P64X0_CLK_GATE_SCLK1_FIMGVG)), S5P64X0_CLK_GATE_SCLK1); - - /* Configure the stabilization counter with wait time required */ - __raw_writel(S5P64X0_PWR_STABLE_PWR_CNT_VAL4, S5P64X0_PWR_STABLE); - - /* set WFI to SLEEP mode configuration */ - tmp = __raw_readl(S5P64X0_SLEEP_CFG); - tmp &= ~(S5P64X0_SLEEP_CFG_OSC_EN); - __raw_writel(tmp, S5P64X0_SLEEP_CFG); - - tmp = __raw_readl(S5P64X0_PWR_CFG); - tmp &= ~(S5P64X0_PWR_CFG_WFI_MASK); - tmp |= S5P64X0_PWR_CFG_WFI_SLEEP; - __raw_writel(tmp, S5P64X0_PWR_CFG); - - /* - * set OTHERS register to disable interrupt before going to - * sleep. This bit is present only in S5P6450, it is reserved - * in S5P6440. - */ - if (soc_is_s5p6450()) { - tmp = __raw_readl(S5P64X0_OTHERS); - tmp |= S5P6450_OTHERS_DISABLE_INT; - __raw_writel(tmp, S5P64X0_OTHERS); - } - - /* ensure previous wakeup state is cleared before sleeping */ - __raw_writel(__raw_readl(S5P64X0_WAKEUP_STAT), S5P64X0_WAKEUP_STAT); - -} - -static int s5p64x0_pm_add(struct device *dev, struct subsys_interface *sif) -{ - pm_cpu_prep = s5p64x0_pm_prepare; - pm_cpu_sleep = s5p64x0_cpu_suspend; - - return 0; -} - -static struct subsys_interface s5p64x0_pm_interface = { - .name = "s5p64x0_pm", - .subsys = &s5p64x0_subsys, - .add_dev = s5p64x0_pm_add, -}; - -static __init int s5p64x0_pm_drvinit(void) -{ - s3c_pm_init(); - - return subsys_interface_register(&s5p64x0_pm_interface); -} -arch_initcall(s5p64x0_pm_drvinit); - -static void s5p64x0_pm_resume(void) -{ - u32 tmp; - - tmp = __raw_readl(S5P64X0_OTHERS); - tmp |= (S5P64X0_OTHERS_RET_MMC0 | S5P64X0_OTHERS_RET_MMC1 | \ - S5P64X0_OTHERS_RET_UART); - __raw_writel(tmp , S5P64X0_OTHERS); -} - -static struct syscore_ops s5p64x0_pm_syscore_ops = { - .resume = s5p64x0_pm_resume, -}; - -static __init int s5p64x0_pm_syscore_init(void) -{ - register_syscore_ops(&s5p64x0_pm_syscore_ops); - - return 0; -} -arch_initcall(s5p64x0_pm_syscore_init); |