diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-06-05 16:39:19 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-06-12 14:58:39 +0200 |
| commit | 97028ce6fca0fec53ee71e2fd5acfb2dc8430f1f (patch) | |
| tree | e9ae63beb8b3e3b2cbf1a07c91b31c19c4d55a76 /drivers/acpi/acpica/rsinfo.c | |
| parent | 2b72693066a867ac073a657e871bb64391b4ffdb (diff) | |
| download | linux-97028ce6fca0fec53ee71e2fd5acfb2dc8430f1f.tar.bz2 | |
ACPICA: ACPI 6.2: Add support for PinConfig() resource
ACPICA commit a06fdba686cefccd5dd5b93b52fa0f1e3f984906
ACPI 6.2 introduced a new resource that is used to specify fine-grained
configuration of a pin or set of pins used by a device. The ASL syntax of
this new resource looks like:
PinConfig (Shared/Exclusive, PinConfigType, PinConfigValue,
ResourceSource, ResourceSourceIndex, ResourceUsage,
DescriptorName, Vendordata) {Pin List}
PinConfigType is an integer with following accepted values:
0x00 (Default) - No configuration is applied to the pin
0x01 (Bias Pull-up) - Pin is pulled up using certain size resistor
0x02 (Bias Pull-down) - Pin is pulled down using certain size resistor
0x03 (Bias Default) - Set to default biasing
0x04 (Bias Disable) - All bias settings will be disabled
0x05 (Bias High Impedance) - Configure the pin as hi_z
0x06 (Bias Bus Hold) - Configure the pin in a weak latch state where
it drives the last value on a tristate bus
0x07 (Drive Open Drain) - Configure the pin into open drain state
0x08 (Drive Open Source) - Configure the pin into open source state
0x09 (Drive Push Pull) - Configure the pin into push-pull state
0x0a (Drive Strength) - How much the pin can supply current
0x0b (Slew Rate) - Configure slew rate of the pin
0x0c (Input Debounce) - Enable input debouncer for the pin
0x0d (Input Schmitt Trigger) - Enable schmitt trigger for the pin
0x0e - 0x7f - Reserved
0x80 - 0xff - Vendor defined types
The PinConfigValue depends on the type and is expressed as units
suitable for that type (for example bias uses Ohms).
Link: https://github.com/acpica/acpica/commit/a06fdba6
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/rsinfo.c')
| -rw-r--r-- | drivers/acpi/acpica/rsinfo.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c index e7310712b86f..5634bd65a745 100644 --- a/drivers/acpi/acpica/rsinfo.c +++ b/drivers/acpi/acpica/rsinfo.c @@ -81,6 +81,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = { acpi_rs_convert_fixed_dma, /* 0x12, ACPI_RESOURCE_TYPE_FIXED_DMA */ NULL, /* 0x13, ACPI_RESOURCE_TYPE_SERIAL_BUS - Use subtype table below */ acpi_rs_convert_pin_function, /* 0x14, ACPI_RESOURCE_TYPE_PIN_FUNCTION */ + acpi_rs_convert_pin_config, /* 0x15, ACPI_RESOURCE_TYPE_PIN_CONFIG */ }; /* Dispatch tables for AML-to-resource (Get Resource) conversion functions */ @@ -122,6 +123,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = { acpi_rs_convert_gpio, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */ acpi_rs_convert_pin_function, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */ NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use subtype table below */ + acpi_rs_convert_pin_config, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */ }; /* Subtype table for serial_bus -- I2C, SPI, and UART */ @@ -159,6 +161,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = { acpi_rs_dump_fixed_dma, /* ACPI_RESOURCE_TYPE_FIXED_DMA */ NULL, /* ACPI_RESOURCE_TYPE_SERIAL_BUS */ acpi_rs_dump_pin_function, /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */ + acpi_rs_dump_pin_config, /* ACPI_RESOURCE_TYPE_PIN_CONFIG */ }; struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = { @@ -196,6 +199,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = { sizeof(struct aml_resource_fixed_dma), /* ACPI_RESOURCE_TYPE_FIXED_DMA */ sizeof(struct aml_resource_common_serialbus), /* ACPI_RESOURCE_TYPE_SERIAL_BUS */ sizeof(struct aml_resource_pin_function), /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */ + sizeof(struct aml_resource_pin_config), /* ACPI_RESOURCE_TYPE_PIN_CONFIG */ }; const u8 acpi_gbl_resource_struct_sizes[] = { @@ -234,7 +238,8 @@ const u8 acpi_gbl_resource_struct_sizes[] = { ACPI_RS_SIZE(struct acpi_resource_extended_address64), ACPI_RS_SIZE(struct acpi_resource_gpio), ACPI_RS_SIZE(struct acpi_resource_pin_function), - ACPI_RS_SIZE(struct acpi_resource_common_serialbus) + ACPI_RS_SIZE(struct acpi_resource_common_serialbus), + ACPI_RS_SIZE(struct acpi_resource_pin_config), }; const u8 acpi_gbl_aml_resource_serial_bus_sizes[] = { |