leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ACPICA: ACPI 6.2: Add support for PinGroupFunction() resource

Browse Source 
ACPICA commit bd9a745749eac7137cd23085e6bdeb322de14ea2

PinGroupFunction() is a new resource introduced with ACPI 6.2. It is
used with PinGroup() to configure specific mode for a set of pins
exposed by a GPIO controller.

The format of the resource is:

  PinGroupFunction (Shared/Exclusive, FunctionNumber, ResourceSource,
                    ResourceSourceIndex, ResourceSourceLabel,
                    ResourceUsage, DescriptorName, VendorData)

The resource_source and ResourceSourceLabel fields are used to specify
the PinGroup() resource referenced by PinGroupFunction().

  Device (GPIO)
  {
      Name (_CRS, ResourceTemplate () {
          PinGroup ("group1") {2, 3}
          PinGroup ("group2") {4, 5}
          ...
      })
  }

  Device (I2C)
  {
      Name (_CRS, ResourceTemplate () {
          PinGroupFunction (Exclusive, 6, "^GPIO", 0, "mygroup2")
      })
  }

In the above example the PinGroupFunction() references the second
PinGroup() resource (using label "mygroup2" and configures pins 4 and 5
into mode 6.

Link: https://github.com/acpica/acpica/commit/bd9a7457
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>
This commit is contained in:
Mika Westerberg 2017-06-05 16:39:31 +08:00 committed by Rafael J. Wysocki
parent fdaa098077
commit f8a6c86644
10 changed files with 182 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/acpi/acpica/aclocal.h
View File

@ -1146,7 +1146,8 @@ struct acpi_port_info {
#define ACPI_RESOURCE_NAME_SERIAL_BUS 0x8E
#define ACPI_RESOURCE_NAME_PIN_CONFIG 0x8F
#define ACPI_RESOURCE_NAME_PIN_GROUP 0x90
#define ACPI_RESOURCE_NAME_LARGE_MAX 0x90
#define ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION 0x91
#define ACPI_RESOURCE_NAME_LARGE_MAX 0x91
/*****************************************************************************
*

3
drivers/acpi/acpica/acresrc.h
View File

@ -150,6 +150,7 @@ typedef enum {
ACPI_RSD_UINT64,
ACPI_RSD_WORDLIST,
ACPI_RSD_LABEL,
ACPI_RSD_SOURCE_LABEL,
} ACPI_RSDUMP_OPCODES;
@ -334,6 +335,7 @@ extern struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[];
extern struct acpi_rsconvert_info acpi_rs_convert_pin_function[];
extern struct acpi_rsconvert_info acpi_rs_convert_pin_config[];
extern struct acpi_rsconvert_info acpi_rs_convert_pin_group[];
extern struct acpi_rsconvert_info acpi_rs_convert_pin_group_function[];
/* These resources require separate get/set tables */
@ -386,6 +388,7 @@ extern struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[];
extern struct acpi_rsdump_info acpi_rs_dump_general_flags[];
extern struct acpi_rsdump_info acpi_rs_dump_pin_config[];
extern struct acpi_rsdump_info acpi_rs_dump_pin_group[];
extern struct acpi_rsdump_info acpi_rs_dump_pin_group_function[];
#endif
#endif /* __ACRESRC_H__ */

20
drivers/acpi/acpica/amlresrc.h
View File

@ -464,6 +464,25 @@ struct aml_resource_pin_group {
#define AML_RESOURCE_PIN_GROUP_REVISION 1 /* ACPI 6.2 */
struct aml_resource_pin_group_function {
AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
u16 flags;
u16 function_number;
u8 res_source_index;
u16 res_source_offset;
u16 res_source_label_offset;
u16 vendor_offset;
u16 vendor_length;
/*
* Optional fields follow immediately:
* 1) Resource Source String
* 2) Resource Source Label String
* 3) Vendor Data bytes
*/
};
#define AML_RESOURCE_PIN_GROUP_FUNCTION_REVISION 1 /* ACPI 6.2 */
/* restore default alignment */
#pragma pack()
@ -509,6 +528,7 @@ union aml_resource {
struct aml_resource_pin_function pin_function;
struct aml_resource_pin_config pin_config;
struct aml_resource_pin_group pin_group;
struct aml_resource_pin_group_function pin_group_function;
/* Utility overlays */

26
drivers/acpi/acpica/rscalc.c
View File

@ -402,6 +402,23 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
break;
case ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION:
total_size = (acpi_rs_length)(total_size +
resource->data.
pin_group_function.
resource_source.
string_length +
resource->data.
pin_group_function.
resource_source_label.
string_length +
resource->data.
pin_group_function.
vendor_length);
break;
default:
break;
@ -634,6 +651,15 @@ acpi_rs_get_list_length(u8 *aml_buffer,
break;
case ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION:
extra_struct_bytes +=
aml_resource->pin_group_function.vendor_offset -
aml_resource->pin_group_function.res_source_offset +
aml_resource->pin_group_function.vendor_length;
break;
default:
break;

10
drivers/acpi/acpica/rsdump.c
View File

@ -385,6 +385,16 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
target));
break;
case ACPI_RSD_SOURCE_LABEL:
/*
* resource_source_label
*/
acpi_rs_dump_resource_label("Resource Source Label",
ACPI_CAST_PTR(struct
acpi_resource_label,
target));
break;
default:
acpi_os_printf("**** Invalid table opcode [%X] ****\n",

23
drivers/acpi/acpica/rsdumpinfo.c
View File

@ -381,6 +381,29 @@ struct acpi_rsdump_info acpi_rs_dump_pin_group[8] = {
"VendorData", NULL},
};
struct acpi_rsdump_info acpi_rs_dump_pin_group_function[9] = {
{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_group_function),
"PinGroupFunction", NULL},
{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_group_function.revision_id),
"RevisionId", NULL},
{ACPI_RSD_1BITFLAG,
ACPI_RSD_OFFSET(pin_group_function.producer_consumer),
"ProducerConsumer", acpi_gbl_consume_decode},
{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_group_function.sharable),
"Sharing", acpi_gbl_shr_decode},
{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group_function.function_number),
"FunctionNumber", NULL},
{ACPI_RSD_SOURCE_LABEL,
ACPI_RSD_OFFSET(pin_group_function.resource_source_label),
"ResourceSourceLabel", NULL},
{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_group_function.resource_source),
"ResourceSource", NULL},
{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group_function.vendor_length),
"VendorLength", NULL},
{ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_group_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},

5
drivers/acpi/acpica/rsinfo.c
View File

@ -83,6 +83,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
acpi_rs_convert_pin_function, /* 0x14, ACPI_RESOURCE_TYPE_PIN_FUNCTION */
acpi_rs_convert_pin_config, /* 0x15, ACPI_RESOURCE_TYPE_PIN_CONFIG */
acpi_rs_convert_pin_group, /* 0x16, ACPI_RESOURCE_TYPE_PIN_GROUP */
acpi_rs_convert_pin_group_function, /* 0x17, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
};
/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
@ -126,6 +127,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use subtype table below */
acpi_rs_convert_pin_config, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */
acpi_rs_convert_pin_group, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */
acpi_rs_convert_pin_group_function, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */
};
/* Subtype table for serial_bus -- I2C, SPI, and UART */
@ -165,6 +167,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
acpi_rs_dump_pin_function, /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
acpi_rs_dump_pin_config, /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
acpi_rs_dump_pin_group, /* ACPI_RESOURCE_TYPE_PIN_GROUP */
acpi_rs_dump_pin_group_function, /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
};
struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = {
@ -204,6 +207,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = {
sizeof(struct aml_resource_pin_function), /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
sizeof(struct aml_resource_pin_config), /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
sizeof(struct aml_resource_pin_group), /* ACPI_RESOURCE_TYPE_PIN_GROUP */
sizeof(struct aml_resource_pin_group_function), /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
};
const u8 acpi_gbl_resource_struct_sizes[] = {
@ -245,6 +249,7 @@ const u8 acpi_gbl_resource_struct_sizes[] = {
ACPI_RS_SIZE(struct acpi_resource_common_serialbus),
ACPI_RS_SIZE(struct acpi_resource_pin_config),
ACPI_RS_SIZE(struct acpi_resource_pin_group),
ACPI_RS_SIZE(struct acpi_resource_pin_group_function),
};
const u8 acpi_gbl_aml_resource_serial_bus_sizes[] = {

77
drivers/acpi/acpica/rsserial.c
View File

@ -674,3 +674,80 @@ struct acpi_rsconvert_info acpi_rs_convert_pin_group[10] = {
AML_OFFSET(pin_group.vendor_offset),
0},
};
/*******************************************************************************
*
* acpi_rs_convert_pin_group_function
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_convert_pin_group_function[13] = {
{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION,
ACPI_RS_SIZE(struct acpi_resource_pin_group_function),
ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_group_function)},
{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION,
sizeof(struct aml_resource_pin_group_function),
0},
{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_group_function.revision_id),
AML_OFFSET(pin_group_function.revision_id),
1},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_group_function.sharable),
AML_OFFSET(pin_group_function.flags),
0},
{ACPI_RSC_1BITFLAG,
ACPI_RS_OFFSET(data.pin_group_function.producer_consumer),
AML_OFFSET(pin_group_function.flags),
1},
{ACPI_RSC_MOVE16,
ACPI_RS_OFFSET(data.pin_group_function.function_number),
AML_OFFSET(pin_group_function.function_number),
1},
/* Resource Source */
{ACPI_RSC_MOVE8,
ACPI_RS_OFFSET(data.pin_group_function.resource_source.index),
AML_OFFSET(pin_group_function.res_source_index),
1},
{ACPI_RSC_COUNT_GPIO_RES,
ACPI_RS_OFFSET(data.pin_group_function.resource_source.string_length),
AML_OFFSET(pin_group_function.res_source_offset),
AML_OFFSET(pin_group_function.res_source_label_offset)},
{ACPI_RSC_MOVE_GPIO_RES,
ACPI_RS_OFFSET(data.pin_group_function.resource_source.string_ptr),
AML_OFFSET(pin_group_function.res_source_offset),
0},
/* Resource Source Label */
{ACPI_RSC_COUNT_GPIO_RES,
ACPI_RS_OFFSET(data.pin_group_function.resource_source_label.
string_length),
AML_OFFSET(pin_group_function.res_source_label_offset),
AML_OFFSET(pin_group_function.vendor_offset)},
{ACPI_RSC_MOVE_GPIO_RES,
ACPI_RS_OFFSET(data.pin_group_function.resource_source_label.
string_ptr),
AML_OFFSET(pin_group_function.res_source_label_offset),
0},
/* Vendor Data */
{ACPI_RSC_COUNT_GPIO_VEN,
ACPI_RS_OFFSET(data.pin_group_function.vendor_length),
AML_OFFSET(pin_group_function.vendor_length),
1},
{ACPI_RSC_MOVE_GPIO_RES,
ACPI_RS_OFFSET(data.pin_group_function.vendor_data),
AML_OFFSET(pin_group_function.vendor_offset),
0},
};

2
drivers/acpi/acpica/utresrc.c
View File

@ -355,6 +355,7 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus),
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_config),
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group),
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group_function),
};
const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = {
@ -409,6 +410,7 @@ static const u8 acpi_gbl_resource_types[] = {
ACPI_VARIABLE_LENGTH, /* 0E *serial_bus */
ACPI_VARIABLE_LENGTH, /* 0F pin_config */
ACPI_VARIABLE_LENGTH, /* 10 pin_group */
ACPI_VARIABLE_LENGTH, /* 11 pin_group_function */
};
/*******************************************************************************

15
include/acpi/acrestyp.h
View File

@ -591,6 +591,17 @@ struct acpi_resource_pin_group {
u8 *vendor_data;
};
struct acpi_resource_pin_group_function {
u8 revision_id;
u8 producer_consumer; /* For values, see Producer/Consumer above */
u8 sharable; /* For values, see Interrupt Attributes above */
u16 function_number;
u16 vendor_length;
struct acpi_resource_source resource_source;
struct acpi_resource_label resource_source_label;
u8 *vendor_data;
};
/* ACPI_RESOURCE_TYPEs */
#define ACPI_RESOURCE_TYPE_IRQ 0
@ -616,7 +627,8 @@ struct acpi_resource_pin_group {
#define ACPI_RESOURCE_TYPE_PIN_FUNCTION 20 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_PIN_CONFIG 21 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_PIN_GROUP 22 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_MAX 22
#define ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION 23 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_MAX 23
/* Master union for resource descriptors */
@ -647,6 +659,7 @@ union acpi_resource_data {
struct acpi_resource_pin_function pin_function;
struct acpi_resource_pin_config pin_config;
struct acpi_resource_pin_group pin_group;
struct acpi_resource_pin_group_function pin_group_function;
/* Common fields */