diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index 95ec37dff3e85fca734a36061072d6ef07444224..bfe056d9148ce8d476b30c9fb54981154fefab5f 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -525,7 +525,6 @@ compatible = "samsung,exynos5410-mipi-dsi"; reg = <0x14500000 0x10000>; interrupts = <0 82 0>; - samsung,power-domain = <&disp_pd>; phys = <&mipi_phy 1>; phy-names = "dsim"; clocks = <&clock CLK_DSIM1>, <&clock CLK_SCLK_MIPI1>; diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index e7cb00873dd4793eb87fdf234ae9abddd8a34e53..5950b0a532242b35518bfee3f9ea97b2c962f152 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -195,6 +195,26 @@ status = "disabled"; }; + usb_host0_ehci: usb@ff500000 { + compatible = "generic-ehci"; + reg = <0xff500000 0x100>; + interrupts = ; + clocks = <&cru HCLK_USBHOST0>; + clock-names = "usbhost"; + status = "disabled"; + }; + + /* NOTE: ohci@ff520000 doesn't actually work on hardware */ + + usb_hsic: usb@ff5c0000 { + compatible = "generic-ehci"; + reg = <0xff5c0000 0x100>; + interrupts = ; + clocks = <&cru HCLK_HSIC>; + clock-names = "usbhost"; + status = "disabled"; + }; + i2c0: i2c@ff650000 { compatible = "rockchip,rk3288-i2c"; reg = <0xff650000 0x1000>; @@ -251,26 +271,6 @@ status = "disabled"; }; - usb_host0_ehci: usb@ff500000 { - compatible = "generic-ehci"; - reg = <0xff500000 0x100>; - interrupts = ; - clocks = <&cru HCLK_USBHOST0>; - clock-names = "usbhost"; - status = "disabled"; - }; - - /* NOTE: ohci@ff520000 doesn't actually work on hardware */ - - usb_hsic: usb@ff5c0000 { - compatible = "generic-ehci"; - reg = <0xff5c0000 0x100>; - interrupts = ; - clocks = <&cru HCLK_HSIC>; - clock-names = "usbhost"; - status = "disabled"; - }; - gic: interrupt-controller@ffc01000 { compatible = "arm,gic-400"; interrupt-controller; diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 18646b7e226b2ba9bdf154e6ccee188b6cb7d211..abefacb45976a7b466b47c7271c212fd46275383 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -114,26 +114,6 @@ static int exynos_irq_set_wake(struct irq_data *data, unsigned int state) #define S5P_CHECK_AFTR 0xFCBA0D10 #define S5P_CHECK_SLEEP 0x00000BAD -/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ -static void exynos_set_wakeupmask(long mask) -{ - pmu_raw_writel(mask, S5P_WAKEUP_MASK); -} - -static void exynos_cpu_set_boot_vector(long flags) -{ - __raw_writel(virt_to_phys(exynos_cpu_resume), EXYNOS_BOOT_VECTOR_ADDR); - __raw_writel(flags, EXYNOS_BOOT_VECTOR_FLAG); -} - -void exynos_enter_aftr(void) -{ - exynos_set_wakeupmask(0x0000ff3e); - exynos_cpu_set_boot_vector(S5P_CHECK_AFTR); - /* Set value of power down register for aftr mode */ - exynos_sys_powerdown_conf(SYS_AFTR); -} - /* For Cortex-A9 Diagnostic and Power control register */ static unsigned int save_arm_register[2]; @@ -173,6 +153,82 @@ static void exynos_cpu_restore_register(void) : "cc"); } +static void exynos_pm_central_suspend(void) +{ + unsigned long tmp; + + /* Setting Central Sequence Register for power down mode */ + tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); + tmp &= ~S5P_CENTRAL_LOWPWR_CFG; + pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); +} + +static int exynos_pm_central_resume(void) +{ + unsigned long tmp; + + /* + * If PMU failed while entering sleep mode, WFI will be + * ignored by PMU and then exiting cpu_do_idle(). + * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically + * in this situation. + */ + tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); + if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) { + tmp |= S5P_CENTRAL_LOWPWR_CFG; + pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); + /* clear the wakeup state register */ + pmu_raw_writel(0x0, S5P_WAKEUP_STAT); + /* No need to perform below restore code */ + return -1; + } + + return 0; +} + +/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ +static void exynos_set_wakeupmask(long mask) +{ + pmu_raw_writel(mask, S5P_WAKEUP_MASK); +} + +static void exynos_cpu_set_boot_vector(long flags) +{ + __raw_writel(virt_to_phys(exynos_cpu_resume), EXYNOS_BOOT_VECTOR_ADDR); + __raw_writel(flags, EXYNOS_BOOT_VECTOR_FLAG); +} + +static int exynos_aftr_finisher(unsigned long flags) +{ + exynos_set_wakeupmask(0x0000ff3e); + exynos_cpu_set_boot_vector(S5P_CHECK_AFTR); + /* Set value of power down register for aftr mode */ + exynos_sys_powerdown_conf(SYS_AFTR); + cpu_do_idle(); + + return 1; +} + +void exynos_enter_aftr(void) +{ + cpu_pm_enter(); + + exynos_pm_central_suspend(); + if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) + exynos_cpu_save_register(); + + cpu_suspend(0, exynos_aftr_finisher); + + if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) { + scu_enable(S5P_VA_SCU); + exynos_cpu_restore_register(); + } + + exynos_pm_central_resume(); + + cpu_pm_exit(); +} + static int exynos_cpu_suspend(unsigned long arg) { #ifdef CONFIG_CACHE_L2X0 @@ -217,16 +273,6 @@ static void exynos_pm_prepare(void) pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0); } -static void exynos_pm_central_suspend(void) -{ - unsigned long tmp; - - /* Setting Central Sequence Register for power down mode */ - tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); - tmp &= ~S5P_CENTRAL_LOWPWR_CFG; - pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); -} - static int exynos_pm_suspend(void) { unsigned long tmp; @@ -244,29 +290,6 @@ static int exynos_pm_suspend(void) return 0; } -static int exynos_pm_central_resume(void) -{ - unsigned long tmp; - - /* - * If PMU failed while entering sleep mode, WFI will be - * ignored by PMU and then exiting cpu_do_idle(). - * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically - * in this situation. - */ - tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); - if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) { - tmp |= S5P_CENTRAL_LOWPWR_CFG; - pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); - /* clear the wakeup state register */ - pmu_raw_writel(0x0, S5P_WAKEUP_STAT); - /* No need to perform below restore code */ - return -1; - } - - return 0; -} - static void exynos_pm_resume(void) { if (exynos_pm_central_resume()) @@ -369,44 +392,10 @@ static const struct platform_suspend_ops exynos_suspend_ops = { .valid = suspend_valid_only_mem, }; -static int exynos_cpu_pm_notifier(struct notifier_block *self, - unsigned long cmd, void *v) -{ - int cpu = smp_processor_id(); - - switch (cmd) { - case CPU_PM_ENTER: - if (cpu == 0) { - exynos_pm_central_suspend(); - if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) - exynos_cpu_save_register(); - } - break; - - case CPU_PM_EXIT: - if (cpu == 0) { - if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) { - scu_enable(S5P_VA_SCU); - exynos_cpu_restore_register(); - } - exynos_pm_central_resume(); - } - break; - } - - return NOTIFY_OK; -} - -static struct notifier_block exynos_cpu_pm_notifier_block = { - .notifier_call = exynos_cpu_pm_notifier, -}; - void __init exynos_pm_init(void) { u32 tmp; - cpu_pm_register_notifier(&exynos_cpu_pm_notifier_block); - /* Platform-specific GIC callback */ gic_arch_extn.irq_set_wake = exynos_irq_set_wake; diff --git a/arch/arm/mach-omap2/clkt_dpll.c b/arch/arm/mach-omap2/clkt_dpll.c index b2ff6cd7ca9f0f35e01208475a9daa58f92a7e63..f251a14cbf16a05b1cfd1f3157a83ae0053d8203 100644 --- a/arch/arm/mach-omap2/clkt_dpll.c +++ b/arch/arm/mach-omap2/clkt_dpll.c @@ -285,10 +285,13 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, { struct clk_hw_omap *clk = to_clk_hw_omap(hw); int m, n, r, scaled_max_m; + int min_delta_m = INT_MAX, min_delta_n = INT_MAX; unsigned long scaled_rt_rp; unsigned long new_rate = 0; struct dpll_data *dd; unsigned long ref_rate; + long delta; + long prev_min_delta = LONG_MAX; const char *clk_name; if (!clk || !clk->dpll_data) @@ -334,23 +337,34 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, if (r == DPLL_MULT_UNDERFLOW) continue; + /* skip rates above our target rate */ + delta = target_rate - new_rate; + if (delta < 0) + continue; + + if (delta < prev_min_delta) { + prev_min_delta = delta; + min_delta_m = m; + min_delta_n = n; + } + pr_debug("clock: %s: m = %d: n = %d: new_rate = %lu\n", clk_name, m, n, new_rate); - if (target_rate == new_rate) { - dd->last_rounded_m = m; - dd->last_rounded_n = n; - dd->last_rounded_rate = target_rate; + if (delta == 0) break; - } } - if (target_rate != new_rate) { + if (prev_min_delta == LONG_MAX) { pr_debug("clock: %s: cannot round to rate %lu\n", clk_name, target_rate); return ~0; } - return target_rate; + dd->last_rounded_m = min_delta_m; + dd->last_rounded_n = min_delta_n; + dd->last_rounded_rate = target_rate - prev_min_delta; + + return dd->last_rounded_rate; } diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index f4796c002070819aa91d5ae229fabae51e5a252b..da041b4ab29c6bb0b5ae5e67aee2271887b8b73e 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -280,6 +280,7 @@ void omap3_clear_scratchpad_contents(void) u32 max_offset = OMAP343X_SCRATCHPAD_ROM_OFFSET; void __iomem *v_addr; u32 offset = 0; + v_addr = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD_ROM); if (omap3xxx_prm_clear_global_cold_reset()) { for ( ; offset <= max_offset; offset += 0x4) @@ -309,7 +310,8 @@ void omap3_save_scratchpad_contents(void) scratchpad_contents.public_restore_ptr = virt_to_phys(omap3_restore_3630); else if (omap_rev() != OMAP3430_REV_ES3_0 && - omap_rev() != OMAP3430_REV_ES3_1) + omap_rev() != OMAP3430_REV_ES3_1 && + omap_rev() != OMAP3430_REV_ES3_1_2) scratchpad_contents.public_restore_ptr = virt_to_phys(omap3_restore); else @@ -463,7 +465,6 @@ void omap3_control_save_context(void) control_context.csi = omap_ctrl_readl(OMAP343X_CONTROL_CSI); control_context.padconf_sys_nirq = omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_SYSNIRQ); - return; } void omap3_control_restore_context(void) @@ -521,7 +522,6 @@ void omap3_control_restore_context(void) omap_ctrl_writel(control_context.csi, OMAP343X_CONTROL_CSI); omap_ctrl_writel(control_context.padconf_sys_nirq, OMAP343X_CONTROL_PADCONF_SYSNIRQ); - return; } void omap3630_ctrl_disable_rta(void) diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index cd5f3a0b97bd86658de0228da51f8f7d074370ac..ac3d789ac3cd8b2ec5de9d4870bae6b0b65f2693 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -475,6 +475,7 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, { struct clk_hw_omap *clk = to_clk_hw_omap(hw); struct clk *new_parent = NULL; + unsigned long rrate; u16 freqsel = 0; struct dpll_data *dd; int ret; @@ -502,8 +503,16 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, __clk_prepare(dd->clk_ref); clk_enable(dd->clk_ref); - if (dd->last_rounded_rate != rate) - rate = __clk_round_rate(hw->clk, rate); + /* XXX this check is probably pointless in the CCF context */ + if (dd->last_rounded_rate != rate) { + rrate = __clk_round_rate(hw->clk, rate); + if (rrate != rate) { + pr_warn("%s: %s: final rate %lu does not match desired rate %lu\n", + __func__, __clk_get_name(hw->clk), + rrate, rate); + rate = rrate; + } + } if (dd->last_rounded_rate == 0) return -EINVAL; diff --git a/drivers/cpuidle/cpuidle-exynos.c b/drivers/cpuidle/cpuidle-exynos.c index 7c0151263828332464ae3021bcb1b1ee980f615c..ba9b34b579f3d1a2757004f05a19412fd0c6043b 100644 --- a/drivers/cpuidle/cpuidle-exynos.c +++ b/drivers/cpuidle/cpuidle-exynos.c @@ -20,25 +20,6 @@ static void (*exynos_enter_aftr)(void); -static int idle_finisher(unsigned long flags) -{ - exynos_enter_aftr(); - cpu_do_idle(); - - return 1; -} - -static int exynos_enter_core0_aftr(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - cpu_pm_enter(); - cpu_suspend(0, idle_finisher); - cpu_pm_exit(); - - return index; -} - static int exynos_enter_lowpower(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) @@ -51,8 +32,10 @@ static int exynos_enter_lowpower(struct cpuidle_device *dev, if (new_index == 0) return arm_cpuidle_simple_enter(dev, drv, new_index); - else - return exynos_enter_core0_aftr(dev, drv, new_index); + + exynos_enter_aftr(); + + return new_index; } static struct cpuidle_driver exynos_idle_driver = {