diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_lpss.c | 15 | ||||
| -rw-r--r-- | drivers/acpi/battery.c | 39 | ||||
| -rw-r--r-- | drivers/acpi/osl.c | 3 | ||||
| -rw-r--r-- | drivers/acpi/tables.c | 3 |
4 files changed, 55 insertions, 5 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 63407d264885..9cb65b0e7597 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -34,6 +34,9 @@ ACPI_MODULE_NAME("acpi_lpss"); /* Offsets relative to LPSS_PRIVATE_OFFSET */ #define LPSS_CLK_DIVIDER_DEF_MASK (BIT(1) | BIT(16)) +#define LPSS_RESETS 0x04 +#define LPSS_RESETS_RESET_FUNC BIT(0) +#define LPSS_RESETS_RESET_APB BIT(1) #define LPSS_GENERAL 0x08 #define LPSS_GENERAL_LTR_MODE_SW BIT(2) #define LPSS_GENERAL_UART_RTS_OVRD BIT(3) @@ -99,6 +102,17 @@ static void lpss_uart_setup(struct lpss_private_data *pdata) writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset); } +static void lpss_i2c_setup(struct lpss_private_data *pdata) +{ + unsigned int offset; + u32 val; + + offset = pdata->dev_desc->prv_offset + LPSS_RESETS; + val = readl(pdata->mmio_base + offset); + val |= LPSS_RESETS_RESET_APB | LPSS_RESETS_RESET_FUNC; + writel(val, pdata->mmio_base + offset); +} + static struct lpss_device_desc lpt_dev_desc = { .clk_required = true, .prv_offset = 0x800, @@ -171,6 +185,7 @@ static struct lpss_device_desc byt_i2c_dev_desc = { .prv_offset = 0x800, .save_ctx = true, .shared_clock = &i2c_clock, + .setup = lpss_i2c_setup, }; #else diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index e48fc98e71c4..0d7116f34b95 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -32,6 +32,7 @@ #include <linux/jiffies.h> #include <linux/async.h> #include <linux/dmi.h> +#include <linux/delay.h> #include <linux/slab.h> #include <linux/suspend.h> #include <asm/unaligned.h> @@ -70,6 +71,7 @@ MODULE_DESCRIPTION("ACPI Battery Driver"); MODULE_LICENSE("GPL"); static int battery_bix_broken_package; +static int battery_notification_delay_ms; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); @@ -930,7 +932,10 @@ static ssize_t acpi_battery_write_alarm(struct file *file, goto end; } alarm_string[count] = '\0'; - battery->alarm = simple_strtol(alarm_string, NULL, 0); + if (kstrtoint(alarm_string, 0, &battery->alarm)) { + result = -EINVAL; + goto end; + } result = acpi_battery_set_alarm(battery); end: if (!result) @@ -1062,6 +1067,14 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) if (!battery) return; old = battery->bat.dev; + /* + * On Acer Aspire V5-573G notifications are sometimes triggered too + * early. For example, when AC is unplugged and notification is + * triggered, battery state is still reported as "Full", and changes to + * "Discharging" only after short delay, without any notification. + */ + if (battery_notification_delay_ms > 0) + msleep(battery_notification_delay_ms); if (event == ACPI_BATTERY_NOTIFY_INFO) acpi_battery_refresh(battery); acpi_battery_update(battery, false); @@ -1106,14 +1119,35 @@ static int battery_notify(struct notifier_block *nb, return 0; } +static int battery_bix_broken_package_quirk(const struct dmi_system_id *d) +{ + battery_bix_broken_package = 1; + return 0; +} + +static int battery_notification_delay_quirk(const struct dmi_system_id *d) +{ + battery_notification_delay_ms = 1000; + return 0; +} + static struct dmi_system_id bat_dmi_table[] = { { + .callback = battery_bix_broken_package_quirk, .ident = "NEC LZ750/LS", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "NEC"), DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"), }, }, + { + .callback = battery_notification_delay_quirk, + .ident = "Acer Aspire V5-573G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"), + }, + }, {}, }; @@ -1227,8 +1261,7 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) if (acpi_disabled) return; - if (dmi_check_system(bat_dmi_table)) - battery_bix_broken_package = 1; + dmi_check_system(bat_dmi_table); #ifdef CONFIG_ACPI_PROCFS_POWER acpi_battery_dir = acpi_lock_battery_dir(); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 3f2bdc812d23..bad25b070fe0 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -235,7 +235,8 @@ void acpi_os_vprintf(const char *fmt, va_list args) static unsigned long acpi_rsdp; static int __init setup_acpi_rsdp(char *arg) { - acpi_rsdp = simple_strtoul(arg, NULL, 16); + if (kstrtoul(arg, 16, &acpi_rsdp)) + return -EINVAL; return 0; } early_param("acpi_rsdp", setup_acpi_rsdp); diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 05550ba44d32..6d5a6cda0734 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -360,7 +360,8 @@ static int __init acpi_parse_apic_instance(char *str) if (!str) return -EINVAL; - acpi_apic_instance = simple_strtoul(str, NULL, 0); + if (kstrtoint(str, 0, &acpi_apic_instance)) + return -EINVAL; pr_notice("Shall use APIC/MADT table %d\n", acpi_apic_instance); |