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Date: Mon, 29 Jul 2013 22:28:46 +0800
From: Aaron Lu <aaron.lu@...el.com>
To: "Rafael J. Wysocki" <rjw@...k.pl>
CC: ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Linux PM list <linux-pm@...r.kernel.org>,
Yinghai Lu <yinghai@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>, Tejun Heo <tj@...nel.org>,
linux-ide@...r.kernel.org
Subject: Re: [PATCH 3/3] ACPI / PM: Use ACPI_STATE_D3_COLD instead of ACPI_STATE_D3
everywhere
On 07/27/2013 09:14 PM, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> There are several places in the tree where ACPI_STATE_D3 is used
> instead of ACPI_STATE_D3_COLD which should be used instead for
> clarity. Modify them all to use ACPI_STATE_D3_COLD as appropriate.
>
> [The definition of ACPI_STATE_D3 itself cannot go away at this point
> as it is part of ACPICA.]
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Reviewed-by: Aaron Lu <aaron.lu@...el.com>
Thanks,
Aaron
> ---
> drivers/acpi/fan.c | 4 ++--
> drivers/acpi/power.c | 2 +-
> drivers/acpi/scan.c | 4 ++--
> drivers/ata/libata-acpi.c | 4 ++--
> drivers/ide/ide-acpi.c | 5 +++--
> drivers/pnp/pnpacpi/core.c | 6 +++---
> include/acpi/acpi_bus.h | 3 ++-
> 7 files changed, 15 insertions(+), 13 deletions(-)
>
> Index: linux-pm/drivers/acpi/fan.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/fan.c
> +++ linux-pm/drivers/acpi/fan.c
> @@ -93,7 +93,7 @@ static int fan_get_cur_state(struct ther
> if (result)
> return result;
>
> - *state = (acpi_state == ACPI_STATE_D3 ? 0 :
> + *state = (acpi_state == ACPI_STATE_D3_COLD ? 0 :
> (acpi_state == ACPI_STATE_D0 ? 1 : -1));
> return 0;
> }
> @@ -108,7 +108,7 @@ fan_set_cur_state(struct thermal_cooling
> return -EINVAL;
>
> result = acpi_bus_set_power(device->handle,
> - state ? ACPI_STATE_D0 : ACPI_STATE_D3);
> + state ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
>
> return result;
> }
> Index: linux-pm/drivers/acpi/power.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/power.c
> +++ linux-pm/drivers/acpi/power.c
> @@ -784,7 +784,7 @@ int acpi_power_get_inferred_state(struct
> }
> }
>
> - *state = ACPI_STATE_D3;
> + *state = ACPI_STATE_D3_COLD;
> return 0;
> }
>
> Index: linux-pm/drivers/acpi/scan.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/scan.c
> +++ linux-pm/drivers/acpi/scan.c
> @@ -1409,8 +1409,8 @@ static void acpi_bus_get_power_flags(str
> /* Set defaults for D0 and D3 states (always valid) */
> device->power.states[ACPI_STATE_D0].flags.valid = 1;
> device->power.states[ACPI_STATE_D0].power = 100;
> - device->power.states[ACPI_STATE_D3].flags.valid = 1;
> - device->power.states[ACPI_STATE_D3].power = 0;
> + device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1;
> + device->power.states[ACPI_STATE_D3_COLD].power = 0;
>
> /* Set D3cold's explicit_set flag if _PS3 exists. */
> if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set)
> Index: linux-pm/drivers/ata/libata-acpi.c
> ===================================================================
> --- linux-pm.orig/drivers/ata/libata-acpi.c
> +++ linux-pm/drivers/ata/libata-acpi.c
> @@ -947,11 +947,11 @@ static void pata_acpi_set_state(struct a
> continue;
>
> acpi_bus_set_power(dev_handle, state.event & PM_EVENT_RESUME ?
> - ACPI_STATE_D0 : ACPI_STATE_D3);
> + ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
> }
>
> if (!(state.event & PM_EVENT_RESUME))
> - acpi_bus_set_power(port_handle, ACPI_STATE_D3);
> + acpi_bus_set_power(port_handle, ACPI_STATE_D3_COLD);
> }
>
> /**
> Index: linux-pm/drivers/ide/ide-acpi.c
> ===================================================================
> --- linux-pm.orig/drivers/ide/ide-acpi.c
> +++ linux-pm/drivers/ide/ide-acpi.c
> @@ -520,11 +520,12 @@ void ide_acpi_set_state(ide_hwif_t *hwif
> ide_port_for_each_present_dev(i, drive, hwif) {
> if (drive->acpidata->obj_handle)
> acpi_bus_set_power(drive->acpidata->obj_handle,
> - on ? ACPI_STATE_D0 : ACPI_STATE_D3);
> + on ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
> }
>
> if (!on)
> - acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
> + acpi_bus_set_power(hwif->acpidata->obj_handle,
> + ACPI_STATE_D3_COLD);
> }
>
> /**
> Index: linux-pm/drivers/pnp/pnpacpi/core.c
> ===================================================================
> --- linux-pm.orig/drivers/pnp/pnpacpi/core.c
> +++ linux-pm/drivers/pnp/pnpacpi/core.c
> @@ -131,7 +131,7 @@ static int pnpacpi_disable_resources(str
> /* acpi_unregister_gsi(pnp_irq(dev, 0)); */
> ret = 0;
> if (acpi_bus_power_manageable(handle))
> - acpi_bus_set_power(handle, ACPI_STATE_D3);
> + acpi_bus_set_power(handle, ACPI_STATE_D3_COLD);
> /* continue even if acpi_bus_set_power() fails */
> if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DIS", NULL, NULL)))
> ret = -ENODEV;
> @@ -174,10 +174,10 @@ static int pnpacpi_suspend(struct pnp_de
>
> if (acpi_bus_power_manageable(handle)) {
> int power_state = acpi_pm_device_sleep_state(&dev->dev, NULL,
> - ACPI_STATE_D3);
> + ACPI_STATE_D3_COLD);
> if (power_state < 0)
> power_state = (state.event == PM_EVENT_ON) ?
> - ACPI_STATE_D0 : ACPI_STATE_D3;
> + ACPI_STATE_D0 : ACPI_STATE_D3_COLD;
>
> /*
> * acpi_bus_set_power() often fails (keyboard port can't be
> Index: linux-pm/include/acpi/acpi_bus.h
> ===================================================================
> --- linux-pm.orig/include/acpi/acpi_bus.h
> +++ linux-pm/include/acpi/acpi_bus.h
> @@ -477,7 +477,8 @@ static inline int acpi_pm_device_sleep_s
> if (p)
> *p = ACPI_STATE_D0;
>
> - return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3) ? m : ACPI_STATE_D0;
> + return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
> + m : ACPI_STATE_D0;
> }
> static inline void acpi_dev_pm_add_dependent(acpi_handle handle,
> struct device *depdev) {}
>
--
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