From 0794469da3f7b2093575cbdfc1108308dd3641ce Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Thu, 30 Oct 2008 01:18:59 +0100 Subject: ACPI: struct device - replace bus_id with dev_name(), dev_set_name() This patch is part of a larger patch series which will remove the "char bus_id[20]" name string from struct device. The device name is managed in the kobject anyway, and without any size limitation, and just needlessly copied into "struct device". To set and read the device name dev_name(dev) and dev_set_name(dev) must be used. If your code uses static kobjects, which it shouldn't do, "const char *init_name" can be used to statically provide the name the registered device should have. At registration time, the init_name field is cleared, to enforce the use of dev_name(dev) to access the device name at a later time. We need to get rid of all occurrences of bus_id in the entire tree to be able to enable the new interface. Please apply this patch, and possibly convert any remaining remaining occurrences of bus_id. We want to submit a patch to -next, which will remove bus_id from "struct device", to find the remaining pieces to convert, and finally switch over to the new api, which will remove the 20 bytes array and does no longer have a size limitation. Acked-by: Greg Kroah-Hartman Signed-Off-By: Kay Sievers Signed-off-by: Len Brown --- drivers/acpi/battery.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi/battery.c') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index b2133e89ad9a..e68f2187ed64 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -782,7 +782,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data) acpi_bus_generate_proc_event(device, event, acpi_battery_present(battery)); acpi_bus_generate_netlink_event(device->pnp.device_class, - device->dev.bus_id, event, + dev_name(&device->dev), event, acpi_battery_present(battery)); #ifdef CONFIG_ACPI_SYSFS_POWER /* acpi_batter_update could remove power_supply object */ -- cgit v1.2.2 From 89595b8f2850a080d290bf778ec933ea1d99f78e Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Fri, 7 Nov 2008 16:57:45 -0700 Subject: ACPI: consolidate ACPI_*_COMPONENT definitions in acpi_drivers.h Move all the component definitions for drivers to a single shared place, include/acpi/acpi_drivers.h. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/battery.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/acpi/battery.c') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index b2133e89ad9a..47f6e38fa6c8 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -46,7 +46,6 @@ #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF -#define ACPI_BATTERY_COMPONENT 0x00040000 #define ACPI_BATTERY_CLASS "battery" #define ACPI_BATTERY_DEVICE_NAME "Battery" #define ACPI_BATTERY_NOTIFY_STATUS 0x80 -- cgit v1.2.2 From 558073dd56707864f09d563b64e7c37c021e89d2 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Fri, 21 Nov 2008 22:41:01 +0800 Subject: ACPI: battery: Convert discharge energy rate to current properly ACPI battery interface reports its state either in mW or in mA, and discharge rate in your case is reported in mW. power_supply interface does not have such a parameter, so current_now parameter is used for all cases. But in case of mW, reported discharge should be converted into mA. Signed-off-by: Alexey Starikovskiy Tested-by: Ferenc Wagner Signed-off-by: Len Brown --- drivers/acpi/battery.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/acpi/battery.c') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 1423b0c0cd2e..a0a178dd189c 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -174,6 +174,15 @@ static int acpi_battery_get_property(struct power_supply *psy, break; case POWER_SUPPLY_PROP_CURRENT_NOW: val->intval = battery->current_now * 1000; + /* if power units are mW, convert to mA by + dividing by current voltage (mV/1000) */ + if (!battery->power_unit) { + if (battery->voltage_now) { + val->intval /= battery->voltage_now; + val->intval *= 1000; + } else + val->intval = -1; + } break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: -- cgit v1.2.2 From aaad077638be1a25871bcae5e43952d6b63abfca Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 5 Dec 2008 01:07:51 +0100 Subject: ACPI: Fix ACPI battery regression introduced by commit 558073 Commit 558073dd56707864f09d563b64e7c37c021e89d2 ("ACPI: battery: Convert discharge energy rate to current properly") caused the battery subsystem to report wrong values of the remaining time on battery power and the time until fully charged on Toshiba Portege R500 (and presumably on other boxes too). Fix the issue by correcting the conversion from mW to mA. Signed-off-by: Rafael J. Wysocki Signed-off-by: Linus Torvalds --- drivers/acpi/battery.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'drivers/acpi/battery.c') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index a0a178dd189c..4fb3c12ac1d8 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -173,14 +173,17 @@ static int acpi_battery_get_property(struct power_supply *psy, val->intval = battery->voltage_now * 1000; break; case POWER_SUPPLY_PROP_CURRENT_NOW: - val->intval = battery->current_now * 1000; - /* if power units are mW, convert to mA by - dividing by current voltage (mV/1000) */ - if (!battery->power_unit) { - if (battery->voltage_now) { + val->intval = battery->current_now; + if (battery->power_unit) { + val->intval *= 1000; + } else { + /* + * If power units are mW, convert to mA by dividing by + * current voltage. + */ + if (battery->voltage_now) val->intval /= battery->voltage_now; - val->intval *= 1000; - } else + else val->intval = -1; } break; -- cgit v1.2.2 From f10a3a32ae2edbe94920ce6827f4c2550eb6ed48 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 5 Dec 2008 13:30:03 -0800 Subject: Revert "ACPI: battery: Convert discharge energy rate to current properly" This reverts commit 558073dd56707864f09d563b64e7c37c021e89d2, along with the failed try to fix the regression it caused ("ACPI: Fix ACPI battery regression introduced by commit 558073"), which just made things worse. Commit aaad077638be1a25871bcae5e43952d6b63abfca (that failed "Fix ACPI battery regression") got the voltage conversion confused, and fixed the problem with Rafael's battery monitor apparently just by mistake. So revert them both, getting us back to the 2.6.27 state in this, and let's revisit it when people understand what's going on. Noted-by: Paul Martin Requested-by: Rafael J. Wysocki Cc: Len Brown Cc: Alexey Starikovskiy Signed-off-by: Linus Torvalds --- drivers/acpi/battery.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'drivers/acpi/battery.c') diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 4fb3c12ac1d8..1423b0c0cd2e 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -173,19 +173,7 @@ static int acpi_battery_get_property(struct power_supply *psy, val->intval = battery->voltage_now * 1000; break; case POWER_SUPPLY_PROP_CURRENT_NOW: - val->intval = battery->current_now; - if (battery->power_unit) { - val->intval *= 1000; - } else { - /* - * If power units are mW, convert to mA by dividing by - * current voltage. - */ - if (battery->voltage_now) - val->intval /= battery->voltage_now; - else - val->intval = -1; - } + val->intval = battery->current_now * 1000; break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: -- cgit v1.2.2