From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> ACPICA commit 6bbc6357f7061f1243601adde0ea45f7a89274e0 ACPI 6.2 introduced a new resource that is used to describe how certain pins are muxed for a device. The ASL syntax of this new resource looks like below: PinFunction(Shared, PinConfig, FunctionNumber, ResourceSource, ResourceSourceIndex, ResourceUsage, DescriptorName, VendorData) {Pin List} Which is pretty similar to GpioIo()/GpioInt() resources. Teach ACPICA about this new resource. Link: https://github.com/acpica/acpica/commit/6bbc6357 Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> --- drivers/acpi/acpica/aclocal.h | 1 + drivers/acpi/acpica/acresrc.h | 2 ++ drivers/acpi/acpica/amlresrc.h | 22 ++++++++++++ drivers/acpi/acpica/rscalc.c | 34 ++++++++++++++++++ drivers/acpi/acpica/rsdumpinfo.c | 23 ++++++++++++ drivers/acpi/acpica/rsinfo.c | 6 +++- drivers/acpi/acpica/rsserial.c | 76 ++++++++++++++++++++++++++++++++++++++++ drivers/acpi/acpica/utresrc.c | 4 +-- include/acpi/acrestyp.h | 16 ++++++++- 9 files changed, 180 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index f63faa4..b73db9b 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -1142,6 +1142,7 @@ struct acpi_port_info { #define ACPI_RESOURCE_NAME_ADDRESS64 0x8A #define ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 0x8B #define ACPI_RESOURCE_NAME_GPIO 0x8C +#define ACPI_RESOURCE_NAME_PIN_FUNCTION 0x8D #define ACPI_RESOURCE_NAME_SERIAL_BUS 0x8E #define ACPI_RESOURCE_NAME_LARGE_MAX 0x8E diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index b4d22f6..bd238b41 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -329,6 +329,7 @@ extern struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[]; extern struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[]; extern struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[]; extern struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[]; +extern struct acpi_rsconvert_info acpi_rs_convert_pin_function[]; /* These resources require separate get/set tables */ @@ -372,6 +373,7 @@ extern struct acpi_rsdump_info acpi_rs_dump_ext_address64[]; extern struct acpi_rsdump_info acpi_rs_dump_ext_irq[]; extern struct acpi_rsdump_info acpi_rs_dump_generic_reg[]; extern struct acpi_rsdump_info acpi_rs_dump_gpio[]; +extern struct acpi_rsdump_info acpi_rs_dump_pin_function[]; extern struct acpi_rsdump_info acpi_rs_dump_fixed_dma[]; extern struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[]; extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[]; diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h index 653a3d1..e34396c 100644 --- a/drivers/acpi/acpica/amlresrc.h +++ b/drivers/acpi/acpica/amlresrc.h @@ -65,6 +65,7 @@ #define ACPI_RESTAG_DRIVESTRENGTH "_DRS" #define ACPI_RESTAG_ENDIANNESS "_END" #define ACPI_RESTAG_FLOWCONTROL "_FLC" +#define ACPI_RESTAG_FUNCTION "_FUN" #define ACPI_RESTAG_GRANULARITY "_GRA" #define ACPI_RESTAG_INTERRUPT "_INT" #define ACPI_RESTAG_INTERRUPTLEVEL "_LL_" /* active_lo(1), active_hi(0) */ @@ -404,6 +405,26 @@ struct aml_resource_uart_serialbus { #define AML_RESOURCE_UART_TYPE_REVISION 1 /* ACPI 5.0 */ #define AML_RESOURCE_UART_MIN_DATA_LEN 10 +struct aml_resource_pin_function { + AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; + u16 flags; + u8 pin_config; + u16 function_number; + u16 pin_table_offset; + u8 res_source_index; + u16 res_source_offset; + u16 vendor_offset; + u16 vendor_length; + /* + * Optional fields follow immediately: + * 1) PIN list (Words) + * 2) Resource Source String + * 3) Vendor Data bytes + */ +}; + +#define AML_RESOURCE_PIN_FUNCTION_REVISION 1 /* ACPI 6.2 */ + /* restore default alignment */ #pragma pack() @@ -446,6 +467,7 @@ union aml_resource { struct aml_resource_spi_serialbus spi_serial_bus; struct aml_resource_uart_serialbus uart_serial_bus; struct aml_resource_common_serialbus common_serial_bus; + struct aml_resource_pin_function pin_function; /* Utility overlays */ diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index 74e47f8..167ece9 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -340,6 +340,22 @@ acpi_rs_get_aml_length(struct acpi_resource *resource, break; + case ACPI_RESOURCE_TYPE_PIN_FUNCTION: + + total_size = (acpi_rs_length)(total_size + + (resource->data. + pin_function. + pin_table_length * 2) + + resource->data. + pin_function. + resource_source. + string_length + + resource->data. + pin_function. + vendor_length); + + break; + case ACPI_RESOURCE_TYPE_SERIAL_BUS: total_size = @@ -537,6 +553,24 @@ acpi_rs_get_list_length(u8 *aml_buffer, } break; + case ACPI_RESOURCE_NAME_PIN_FUNCTION: + + /* Vendor data is optional */ + + if (aml_resource->pin_function.vendor_length) { + extra_struct_bytes += + aml_resource->pin_function.vendor_offset - + aml_resource->pin_function. + pin_table_offset + + aml_resource->pin_function.vendor_length; + } else { + extra_struct_bytes += + aml_resource->large_header.resource_length + + sizeof(struct aml_resource_large_header) - + aml_resource->pin_function.pin_table_offset; + } + break; + case ACPI_RESOURCE_NAME_SERIAL_BUS: minimum_aml_resource_length = diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c index 8aacd28..afc0441 100644 --- a/drivers/acpi/acpica/rsdumpinfo.c +++ b/drivers/acpi/acpica/rsdumpinfo.c @@ -314,6 +314,29 @@ struct acpi_rsdump_info acpi_rs_dump_gpio[16] = { NULL}, }; +struct acpi_rsdump_info acpi_rs_dump_pin_function[10] = { + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_function), + "PinFunction", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.revision_id), + "RevisionId", NULL}, + {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.pin_config), "PinConfig", + acpi_gbl_ppc_decode}, + {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_function.sharable), "Sharing", + acpi_gbl_shr_decode}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.function_number), + "FunctionNumber", NULL}, + {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_function.resource_source), + "ResourceSource", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.pin_table_length), + "PinTableLength", NULL}, + {ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_function.pin_table), "PinTable", + NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.vendor_length), + "VendorLength", NULL}, + {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_function.vendor_data), + "VendorData", NULL}, +}; + struct acpi_rsdump_info acpi_rs_dump_fixed_dma[4] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_dma), "FixedDma", NULL}, diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c index 475da9d..e7310712 100644 --- a/drivers/acpi/acpica/rsinfo.c +++ b/drivers/acpi/acpica/rsinfo.c @@ -80,6 +80,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = { acpi_rs_convert_gpio, /* 0x11, ACPI_RESOURCE_TYPE_GPIO */ 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 */ }; /* Dispatch tables for AML-to-resource (Get Resource) conversion functions */ @@ -119,7 +120,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = { acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */ acpi_rs_convert_ext_address64, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */ acpi_rs_convert_gpio, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */ - NULL, /* 0x0D, Reserved */ + acpi_rs_convert_pin_function, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */ NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use subtype table below */ }; @@ -157,6 +158,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = { acpi_rs_dump_gpio, /* ACPI_RESOURCE_TYPE_GPIO */ 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 */ }; struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = { @@ -193,6 +195,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = { sizeof(struct aml_resource_gpio), /* ACPI_RESOURCE_TYPE_GPIO */ 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 */ }; const u8 acpi_gbl_resource_struct_sizes[] = { @@ -230,6 +233,7 @@ const u8 acpi_gbl_resource_struct_sizes[] = { ACPI_RS_SIZE(struct acpi_resource_address64), 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) }; diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c index c20e6d0..fd11d0c 100644 --- a/drivers/acpi/acpica/rsserial.c +++ b/drivers/acpi/acpica/rsserial.c @@ -147,6 +147,82 @@ struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = { /******************************************************************************* * + * acpi_rs_convert_pinfunction + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_pin_function[13] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_FUNCTION, + ACPI_RS_SIZE(struct acpi_resource_pin_function), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_function)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_FUNCTION, + sizeof(struct aml_resource_pin_function), + 0}, + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.revision_id), + AML_OFFSET(pin_function.revision_id), + 1}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_function.sharable), + AML_OFFSET(pin_function.flags), + 0}, + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.pin_config), + AML_OFFSET(pin_function.pin_config), + 1}, + + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.pin_function.function_number), + AML_OFFSET(pin_function.function_number), + 2}, + + /* Pin Table */ + + /* + * It is OK to use GPIO operations here because none of them refer GPIO + * structures directly but instead use offsets given here. + */ + + {ACPI_RSC_COUNT_GPIO_PIN, + ACPI_RS_OFFSET(data.pin_function.pin_table_length), + AML_OFFSET(pin_function.pin_table_offset), + AML_OFFSET(pin_function.res_source_offset)}, + + {ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_function.pin_table), + AML_OFFSET(pin_function.pin_table_offset), + 0}, + + /* Resource Source */ + + {ACPI_RSC_MOVE8, + ACPI_RS_OFFSET(data.pin_function.resource_source.index), + AML_OFFSET(pin_function.res_source_index), + 1}, + + {ACPI_RSC_COUNT_GPIO_RES, + ACPI_RS_OFFSET(data.pin_function.resource_source.string_length), + AML_OFFSET(pin_function.res_source_offset), + AML_OFFSET(pin_function.vendor_offset)}, + + {ACPI_RSC_MOVE_GPIO_RES, + ACPI_RS_OFFSET(data.pin_function.resource_source.string_ptr), + AML_OFFSET(pin_function.res_source_offset), + 0}, + + /* Vendor Data */ + + {ACPI_RSC_COUNT_GPIO_VEN, + ACPI_RS_OFFSET(data.pin_function.vendor_length), + AML_OFFSET(pin_function.vendor_length), + 1}, + + {ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_function.vendor_data), + AML_OFFSET(pin_function.vendor_offset), + 0}, +}; + +/******************************************************************************* + * * acpi_rs_convert_i2c_serial_bus * ******************************************************************************/ diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index e0587c8..8dd0995 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -332,7 +332,7 @@ const u8 acpi_gbl_resource_aml_sizes[] = { ACPI_AML_SIZE_LARGE(struct aml_resource_address64), ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64), ACPI_AML_SIZE_LARGE(struct aml_resource_gpio), - 0, + ACPI_AML_SIZE_LARGE(struct aml_resource_pin_function), ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus), }; @@ -384,7 +384,7 @@ static const u8 acpi_gbl_resource_types[] = { ACPI_VARIABLE_LENGTH, /* 0A Qword* address */ ACPI_FIXED_LENGTH, /* 0B Extended* address */ ACPI_VARIABLE_LENGTH, /* 0C Gpio* */ - 0, + ACPI_VARIABLE_LENGTH, /* 0D pin_function */ ACPI_VARIABLE_LENGTH /* 0E *serial_bus */ }; diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h index f0f7403..cf6996e 100644 --- a/include/acpi/acrestyp.h +++ b/include/acpi/acrestyp.h @@ -534,6 +534,18 @@ struct acpi_resource_uart_serialbus { #define ACPI_UART_CLEAR_TO_SEND (1<<6) #define ACPI_UART_REQUEST_TO_SEND (1<<7) +struct acpi_resource_pin_function { + u8 revision_id; + u8 pin_config; + u8 sharable; /* For values, see Interrupt Attributes above */ + u16 function_number; + u16 pin_table_length; + u16 vendor_length; + struct acpi_resource_source resource_source; + u16 *pin_table; + u8 *vendor_data; +}; + /* ACPI_RESOURCE_TYPEs */ #define ACPI_RESOURCE_TYPE_IRQ 0 @@ -556,7 +568,8 @@ struct acpi_resource_uart_serialbus { #define ACPI_RESOURCE_TYPE_GPIO 17 /* ACPI 5.0 */ #define ACPI_RESOURCE_TYPE_FIXED_DMA 18 /* ACPI 5.0 */ #define ACPI_RESOURCE_TYPE_SERIAL_BUS 19 /* ACPI 5.0 */ -#define ACPI_RESOURCE_TYPE_MAX 19 +#define ACPI_RESOURCE_TYPE_PIN_FUNCTION 20 /* ACPI 6.2 */ +#define ACPI_RESOURCE_TYPE_MAX 20 /* Master union for resource descriptors */ @@ -584,6 +597,7 @@ union acpi_resource_data { struct acpi_resource_spi_serialbus spi_serial_bus; struct acpi_resource_uart_serialbus uart_serial_bus; struct acpi_resource_common_serialbus common_serial_bus; + struct acpi_resource_pin_function pin_function; /* Common fields */ -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html