Merge branch 'ib-omap-block-idle' into devel (347ae6e2) · Commits · EulixOS / Software / Kernel

arch/arm/mach-omap2/cpuidle34xx.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -109,6 +109,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
		int index)
		{
		struct omap3_idle_statedata *cx = &omap3_idle_data[index];
		int error;

		if (omap_irq_pending() \|\| need_resched())
		goto return_sleep_time;
		@@ -125,8 +126,11 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
		* Call idle CPU PM enter notifier chain so that
		* VFP context is saved.
		*/
		if (cx->mpu_state == PWRDM_POWER_OFF)
		cpu_pm_enter();
		if (cx->mpu_state == PWRDM_POWER_OFF) {
		error = cpu_pm_enter();
		if (error)
		goto out_clkdm_set;
		}

		/* Execute ARM wfi */
		omap_sram_idle();
		@@ -139,6 +143,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
		pwrdm_read_prev_pwrst(mpu_pd) == PWRDM_POWER_OFF)
		cpu_pm_exit();

		out_clkdm_set:
		/* Re-allow idle for C1 */
		if (cx->flags & OMAP_CPUIDLE_CX_NO_CLKDM_IDLE)
		clkdm_allow_idle(mpu_pd->pwrdm_clkdms[0]);

arch/arm/mach-omap2/cpuidle44xx.c

+17 −9

Original line number	Diff line number	Diff line
		@@ -122,6 +122,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
		{
		struct idle_statedata *cx = state_ptr + index;
		u32 mpuss_can_lose_context = 0;
		int error;

		/*
		* CPU0 has to wait and stay ON until CPU1 is OFF state.
		@@ -159,7 +160,9 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
		* Call idle CPU PM enter notifier chain so that
		* VFP and per CPU interrupt context is saved.
		*/
		cpu_pm_enter();
		error = cpu_pm_enter();
		if (error)
		goto cpu_pm_out;

		if (dev->cpu == 0) {
		pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state);
		@@ -169,13 +172,17 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
		* Call idle CPU cluster PM enter notifier chain
		* to save GIC and wakeupgen context.
		*/
		if (mpuss_can_lose_context)
		cpu_cluster_pm_enter();
		if (mpuss_can_lose_context) {
		error = cpu_cluster_pm_enter();
		if (error)
		goto cpu_cluster_pm_out;
		}
		}

		omap4_enter_lowpower(dev->cpu, cx->cpu_state);
		cpu_done[dev->cpu] = true;

		cpu_cluster_pm_out:
		/* Wakeup CPU1 only if it is not offlined */
		if (dev->cpu == 0 && cpumask_test_cpu(1, cpu_online_mask)) {

		@@ -197,12 +204,6 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
		}
		}

		/*
		* Call idle CPU PM exit notifier chain to restore
		* VFP and per CPU IRQ context.
		*/
		cpu_pm_exit();

		/*
		* Call idle CPU cluster PM exit notifier chain
		* to restore GIC and wakeupgen context.
		@@ -210,6 +211,13 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
		if (dev->cpu == 0 && mpuss_can_lose_context)
		cpu_cluster_pm_exit();

		/*
		* Call idle CPU PM exit notifier chain to restore
		* VFP and per CPU IRQ context.
		*/
		cpu_pm_exit();

		cpu_pm_out:
		tick_broadcast_exit();

		fail:

arch/arm/mach-omap2/pm34xx.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -191,6 +191,7 @@ void omap_sram_idle(void)
		int per_next_state = PWRDM_POWER_ON;
		int core_next_state = PWRDM_POWER_ON;
		u32 sdrc_pwr = 0;
		int error;

		mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm);
		switch (mpu_next_state) {
		@@ -219,8 +220,11 @@ void omap_sram_idle(void)
		pwrdm_pre_transition(NULL);

		/* PER */
		if (per_next_state == PWRDM_POWER_OFF)
		cpu_cluster_pm_enter();
		if (per_next_state == PWRDM_POWER_OFF) {
		error = cpu_cluster_pm_enter();
		if (error)
		return;
		}

		/* CORE */
		if (core_next_state < PWRDM_POWER_ON) {

drivers/gpio/gpio-omap.c

+14 −15

Original line number	Diff line number	Diff line
		@@ -1102,23 +1102,13 @@ static void omap_gpio_idle(struct gpio_bank *bank, bool may_lose_context)
		{
		struct device *dev = bank->chip.parent;
		void __iomem *base = bank->base;
		u32 mask, nowake;
		u32 nowake;

		bank->saved_datain = readl_relaxed(base + bank->regs->datain);

		if (!bank->enabled_non_wakeup_gpios)
		goto update_gpio_context_count;

		/* Check for pending EDGE_FALLING, ignore EDGE_BOTH */
		mask = bank->enabled_non_wakeup_gpios & bank->context.fallingdetect;
		mask &= ~bank->context.risingdetect;
		bank->saved_datain \|= mask;

		/* Check for pending EDGE_RISING, ignore EDGE_BOTH */
		mask = bank->enabled_non_wakeup_gpios & bank->context.risingdetect;
		mask &= ~bank->context.fallingdetect;
		bank->saved_datain &= ~mask;

		if (!may_lose_context)
		goto update_gpio_context_count;

		@@ -1237,26 +1227,35 @@ static int gpio_omap_cpu_notifier(struct notifier_block *nb,
		{
		struct gpio_bank *bank;
		unsigned long flags;
		int ret = NOTIFY_OK;
		u32 isr, mask;

		bank = container_of(nb, struct gpio_bank, nb);

		raw_spin_lock_irqsave(&bank->lock, flags);
		if (bank->is_suspended)
		goto out_unlock;

		switch (cmd) {
		case CPU_CLUSTER_PM_ENTER:
		if (bank->is_suspended)
		mask = omap_get_gpio_irqbank_mask(bank);
		isr = readl_relaxed(bank->base + bank->regs->irqstatus) & mask;
		if (isr) {
		ret = NOTIFY_BAD;
		break;
		}
		omap_gpio_idle(bank, true);
		break;
		case CPU_CLUSTER_PM_ENTER_FAILED:
		case CPU_CLUSTER_PM_EXIT:
		if (bank->is_suspended)
		break;
		omap_gpio_unidle(bank);
		break;
		}

		out_unlock:
		raw_spin_unlock_irqrestore(&bank->lock, flags);

		return NOTIFY_OK;
		return ret;
		}

		static const struct omap_gpio_reg_offs omap2_gpio_regs = {