summaryrefslogtreecommitdiff
path: root/drivers/acpi/acpica/rsserial.c
diff options
context:
space:
mode:
authorMika Westerberg <mika.westerberg@linux.intel.com>2017-06-05 11:39:31 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-06-12 15:58:39 +0300
commitf8a6c86644f6e07af0ac4e89adb4db29a640e40f (patch)
treec43902099c3676e5132f16e2f57ebcd79c98d069 /drivers/acpi/acpica/rsserial.c
parentfdaa0980772cb05b53e7f544d513e3445f3f1021 (diff)
downloadlinux-f8a6c86644f6e07af0ac4e89adb4db29a640e40f.tar.xz
ACPICA: ACPI 6.2: Add support for PinGroupFunction() resource
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>
Diffstat (limited to 'drivers/acpi/acpica/rsserial.c')
-rw-r--r--drivers/acpi/acpica/rsserial.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c
index 4a15893e0cf0..96ee92ec044d 100644
--- a/drivers/acpi/acpica/rsserial.c
+++ b/drivers/acpi/acpica/rsserial.c
@@ -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},
+};