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authorMika Westerberg <mika.westerberg@linux.intel.com>2017-06-05 16:39:19 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-06-12 14:58:39 +0200
commit97028ce6fca0fec53ee71e2fd5acfb2dc8430f1f (patch)
treee9ae63beb8b3e3b2cbf1a07c91b31c19c4d55a76 /drivers/acpi/acpica/rsinfo.c
parent2b72693066a867ac073a657e871bb64391b4ffdb (diff)
downloadop-kernel-dev-97028ce6fca0fec53ee71e2fd5acfb2dc8430f1f.zip
op-kernel-dev-97028ce6fca0fec53ee71e2fd5acfb2dc8430f1f.tar.gz
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.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c
index e7310712..5634bd6 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[] = {
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