OMAP3: PM debug: allow runtime toggle of PM features (c40552bc) · Commits · 戴 / test

arch/arm/mach-omap2/pm-debug.c

+27 −0

Original line number	Diff line number	Diff line
		@@ -527,6 +527,29 @@ static int __init pwrdms_setup(struct powerdomain pwrdm, void dir)
		return 0;
		}

		static int option_get(void data, u64 val)
		{
		u32 *option = data;

		val = option;

		return 0;
		}

		static int option_set(void *data, u64 val)
		{
		u32 *option = data;

		*option = val;

		if (option == &enable_off_mode)
		omap3_pm_off_mode_enable(val);

		return 0;
		}

		DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n");

		static int __init pm_dbg_init(void)
		{
		int i;
		@@ -569,6 +592,10 @@ static int __init pm_dbg_init(void)

		}

		(void) debugfs_create_file("enable_off_mode", S_IRUGO \| S_IWUGO, d,
		&enable_off_mode, &pm_dbg_option_fops);
		(void) debugfs_create_file("sleep_while_idle", S_IRUGO \| S_IWUGO, d,
		&sleep_while_idle, &pm_dbg_option_fops);
		pm_dbg_init_done = 1;

		return 0;

+4 −0

Original line number	Diff line number	Diff line
		@@ -13,7 +13,11 @@

		#include <plat/powerdomain.h>

		extern u32 enable_off_mode;
		extern u32 sleep_while_idle;

		extern void *omap3_secure_ram_storage;
		extern void omap3_pm_off_mode_enable(int);

		extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
		extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);

+22 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@
		#include <linux/list.h>
		#include <linux/err.h>
		#include <linux/gpio.h>
		#include <linux/clk.h>

		#include <plat/sram.h>
		#include <plat/clockdomain.h>
		@@ -57,6 +58,9 @@
		#define OMAP343X_TABLE_VALUE_OFFSET 0x30
		#define OMAP343X_CONTROL_REG_VALUE_OFFSET 0x32

		u32 enable_off_mode;
		u32 sleep_while_idle;

		struct power_state {
		struct powerdomain *pwrdm;
		u32 next_state;
		@@ -456,6 +460,8 @@ static int omap3_fclks_active(void)

		static int omap3_can_sleep(void)
		{
		if (!sleep_while_idle)
		return 0;
		if (!omap_uart_can_sleep())
		return 0;
		if (omap3_fclks_active())
		@@ -900,6 +906,22 @@ static void __init prcm_setup_regs(void)
		omap3_d2d_idle();
		}

		void omap3_pm_off_mode_enable(int enable)
		{
		struct power_state *pwrst;
		u32 state;

		if (enable)
		state = PWRDM_POWER_OFF;
		else
		state = PWRDM_POWER_RET;

		list_for_each_entry(pwrst, &pwrst_list, node) {
		pwrst->next_state = state;
		set_pwrdm_state(pwrst->pwrdm, state);
		}
		}

		int omap3_pm_get_suspend_state(struct powerdomain *pwrdm)
		{
		struct power_state *pwrst;

+0 −2

Original line number	Diff line number	Diff line
		@@ -155,8 +155,6 @@ static inline void __init omap_uart_reset(struct omap_uart_state *uart)

		#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)

		static int enable_off_mode; /* to be removed by full off-mode patches */

		static void omap_uart_save_context(struct omap_uart_state *uart)
		{
		u16 lcr = 0;