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Commit ab2c849f authored by Iliyan Malchev's avatar Iliyan Malchev Committed by Venkatesh Yadav Abbarapu
Browse files

BACKPORT: PM: wakeup_reason: add functions to query and clear wakeup reasons 



The query results are valid until the next PM_SUSPEND_PREPARE.

(cherry picked from commit 76543de14f860ab713114621cb62e8006b7ca952)
Change-Id: I6bc2bd47c830262319576a001d39ac9a994916cf
Signed-off-by: default avatarIliyan Malchev <malchev@google.com>
Git-commit: a32e34cb36d558ceb0e9d5658568f062a6284c7c
Git-repo: https://android.googlesource.com/kernel/msm


Signed-off-by: default avatarVenkatesh Yadav Abbarapu <vabbar@codeaurora.org>
parent 32b4ba1e

drivers/base/syscore.c

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/suspend.h>

#include <trace/events/power.h>

#include <linux/wakeup_reason.h>

#include <linux/irq.h>



static LIST_HEAD(syscore_ops_list);

static DEFINE_MUTEX(syscore_ops_lock);

drivers/irqchip/irq-gic.c

+7 −3
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ 
#include <linux/irqchip/arm-gic.h>

#include <linux/syscore_ops.h>

#include <linux/msm_rtb.h>



#include <linux/wakeup_reason.h>

#include <asm/cputype.h>

#include <asm/irq.h>

#include <asm/exception.h>
@@ -290,6 +290,7 @@ static void gic_show_resume_irq(struct gic_chip_data *gic) 


		pr_warning("%s: %d triggered %s\n", __func__,

					i + gic->irq_offset, name);

		log_base_wakeup_reason(i + gic->irq_offset);

	}

}
@@ -461,12 +462,13 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) 
	} while (1);

}



static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)

static bool gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)

{

	struct gic_chip_data *chip_data = irq_get_handler_data(irq);

	struct irq_chip *chip = irq_get_chip(irq);

	unsigned int cascade_irq, gic_irq;

	unsigned long status;

	int handled = false;



	chained_irq_enter(chip, desc);
@@ -482,10 +484,12 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc) 
	if (unlikely(gic_irq < 32 || gic_irq > 1020))

		handle_bad_irq(cascade_irq, desc);

	else

		generic_handle_irq(cascade_irq);

		handled = generic_handle_irq(cascade_irq);





 out:

	chained_irq_exit(chip, desc);

	return handled == true;

}



static struct irq_chip gic_chip = {

drivers/pinctrl/qcom/pinctrl-msm.c

+6 −4
Original line number Diff line number Diff line
@@ -797,7 +797,7 @@ static struct irq_chip msm_gpio_irq_chip = { 
	.irq_set_wake   = msm_gpio_irq_set_wake,

};



static void msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)

bool msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)

{

	struct gpio_chip *gc = irq_desc_get_handler_data(desc);

	const struct msm_pingroup *g;
@@ -807,6 +807,7 @@ static void msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) 
	int handled = 0;

	u32 val;

	int i;

	bool ret;



	chained_irq_enter(chip, desc);
@@ -819,16 +820,17 @@ static void msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) 
		val = readl(pctrl->regs + g->intr_status_reg);

		if (val & BIT(g->intr_status_bit)) {

			irq_pin = irq_find_mapping(gc->irqdomain, i);

			generic_handle_irq(irq_pin);

			handled++;

			handled += generic_handle_irq(irq_pin);

		}

	}



	ret = (handled != 0);

	/* No interrupts were flagged */

	if (handled == 0)

		handle_bad_irq(irq, desc);

		ret = handle_bad_irq(irq, desc);



	chained_irq_exit(chip, desc);

	return ret;

}



/*

include/linux/irq.h

+9 −9
Original line number Diff line number Diff line
@@ -442,15 +442,15 @@ static inline int irq_set_parent(int irq, int parent_irq) 
 * Built-in IRQ handlers for various IRQ types,

 * callable via desc->handle_irq()

 */

extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);

extern void handle_nested_irq(unsigned int irq);

extern bool handle_level_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_edge_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_simple_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_percpu_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_bad_irq(unsigned int irq, struct irq_desc *desc);

extern bool handle_nested_irq(unsigned int irq);



extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);

#ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY

include/linux/irqdesc.h

+3 −2
Original line number Diff line number Diff line
@@ -123,9 +123,10 @@ static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc) 
 * irqchip-style controller then we call the ->handle_irq() handler,

 * and it calls __do_IRQ() if it's attached to an irqtype-style controller.

 */

static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)



static inline bool generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)

{

	desc->handle_irq(irq, desc);

	return desc->handle_irq(irq, desc);

}



int generic_handle_irq(unsigned int irq);