[PATCH 09/32] ACPICA: add support for ClockInput resource (v6.5)

Rafael J. Wysocki
2023-04-05T14:03:41Z

From: Niyas Sait <niyas.sait@linaro.org>

ACPICA commit 661feab5ee01a34af95a389a18c82e79f1aba05a

Link: https://github.com/acpica/acpica/commit/661feab5
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/acpica/aclocal.h | 3 +-
drivers/acpi/acpica/acresrc.h | 2 ++
drivers/acpi/acpica/acutils.h | 2 ++
drivers/acpi/acpica/amlresrc.h | 17 +++++++++++
drivers/acpi/acpica/rscalc.c | 17 +++++++++++
drivers/acpi/acpica/rsdumpinfo.c | 17 +++++++++++
drivers/acpi/acpica/rsinfo.c | 5 ++++
drivers/acpi/acpica/rsserial.c | 49 +++++++++++++++++++++++++++++++
drivers/acpi/acpica/utresdecode.c | 11 +++++++
drivers/acpi/acpica/utresrc.c | 3 ++
include/acpi/acrestyp.h | 13 +++++++-
11 files changed, 137 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 2b876dac7558..12d4a024f029 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -1122,7 +1122,8 @@ struct acpi_port_info {
#define ACPI_RESOURCE_NAME_PIN_GROUP 0x90
#define ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION 0x91
#define ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG 0x92
-#define ACPI_RESOURCE_NAME_LARGE_MAX 0x92
+#define ACPI_RESOURCE_NAME_CLOCK_INPUT 0x93
+#define ACPI_RESOURCE_NAME_LARGE_MAX 0x94

/*****************************************************************************
*
diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index c2e6c8455587..d772ff9ca07d 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -306,6 +306,7 @@ 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[];
extern struct acpi_rsconvert_info acpi_rs_convert_pin_group_config[];
+extern struct acpi_rsconvert_info acpi_rs_convert_clock_input[];

/* These resources require separate get/set tables */

@@ -361,6 +362,7 @@ 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[];
extern struct acpi_rsdump_info acpi_rs_dump_pin_group_config[];
+extern struct acpi_rsdump_info acpi_rs_dump_clock_input[];
#endif

#endif /* __ACRESRC_H__ */
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index dd060844189e..edfdbbef81c1 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -53,6 +53,8 @@ extern const char *acpi_gbl_sb_decode[];
extern const char *acpi_gbl_fc_decode[];
extern const char *acpi_gbl_pt_decode[];
extern const char *acpi_gbl_ptyp_decode[];
+extern const char *acpi_gbl_clock_input_mode[];
+extern const char *acpi_gbl_clock_input_scale[];
#endif

/*
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index 89093111bfd2..48df447ef5bb 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -70,6 +70,8 @@
#define ACPI_RESTAG_TYPE "_TTP" /* Translation(1), Static (0) */
#define ACPI_RESTAG_XFERTYPE "_SIZ" /* 8(0), 8And16(1), 16(2) */
#define ACPI_RESTAG_VENDORDATA "_VEN"
+#define ACPI_RESTAG_FQN "_FQN"
+#define ACPI_RESTAG_FQD "_FQD"

/* Default sizes for "small" resource descriptors */

@@ -427,6 +429,20 @@ struct aml_resource_pin_config {
*/
};

+#define AML_RESOURCE_CLOCK_INPUT_REVISION 1 /* ACPI 6.5 */
+
+struct aml_resource_clock_input {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u16 frequency_divisor;
+ u32 frequency_numerator;
+ /*
+ * Optional fields follow immediately:
+ * 1) Resource Source index
+ * 2) Resource Source String
+ */
+};
+
#define AML_RESOURCE_PIN_CONFIG_REVISION 1 /* ACPI 6.2 */

struct aml_resource_pin_group {
@@ -533,6 +549,7 @@ union aml_resource {
struct aml_resource_pin_group pin_group;
struct aml_resource_pin_group_function pin_group_function;
struct aml_resource_pin_group_config pin_group_config;
+ struct aml_resource_clock_input clock_input;

/* Utility overlays */

diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 90583db459a2..ffb448fa51fd 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -320,6 +320,16 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,

break;

+ case ACPI_RESOURCE_TYPE_CLOCK_INPUT:
+
+ total_size = (acpi_rs_length)(total_size +
+ resource->data.
+ clock_input.
+ resource_source.
+ string_length);
+
+ break;
+
case ACPI_RESOURCE_TYPE_SERIAL_BUS:

total_size =
@@ -650,6 +660,13 @@ acpi_rs_get_list_length(u8 *aml_buffer,

break;

+ case ACPI_RESOURCE_NAME_CLOCK_INPUT:
+ extra_struct_bytes =
+ acpi_rs_stream_option_length(resource_length,
+ minimum_aml_resource_length);
+
+ break;
+
default:

break;
diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c
index b8b37449011b..998a79cc09c2 100644
--- a/drivers/acpi/acpica/rsdumpinfo.c
+++ b/drivers/acpi/acpica/rsdumpinfo.c
@@ -301,6 +301,23 @@ struct acpi_rsdump_info acpi_rs_dump_pin_function[10] = {
"VendorData", NULL},
};

+struct acpi_rsdump_info acpi_rs_dump_clock_input[7] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_clock_input),
+ "ClockInput", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(clock_input.revision_id), "RevisionId",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(clock_input.frequency_numerator),
+ "FrequencyNumerator", NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(clock_input.frequency_divisor),
+ "FrequencyDivisor", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(clock_input.scale), "Scale",
+ acpi_gbl_clock_input_scale},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(clock_input.mode), "Mode",
+ acpi_gbl_clock_input_mode},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(clock_input.resource_source),
+ "ResourceSource", NULL},
+};
+
struct acpi_rsdump_info acpi_rs_dump_pin_config[11] = {
{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_config),
"PinConfig", NULL},
diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c
index eaeb7ab58c2a..ad7465ddfe13 100644
--- a/drivers/acpi/acpica/rsinfo.c
+++ b/drivers/acpi/acpica/rsinfo.c
@@ -49,6 +49,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
acpi_rs_convert_pin_group, /* 0x16, ACPI_RESOURCE_TYPE_PIN_GROUP */
acpi_rs_convert_pin_group_function, /* 0x17, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
acpi_rs_convert_pin_group_config, /* 0x18, ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
+ acpi_rs_convert_clock_input, /* 0x19, ACPI_RESOURCE_TYPE_CLOCK_INPUT */
};

/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
@@ -94,6 +95,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
acpi_rs_convert_pin_group, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */
acpi_rs_convert_pin_group_function, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */
acpi_rs_convert_pin_group_config, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG */
+ acpi_rs_convert_clock_input, /* 0x13, ACPI_RESOURCE_NAME_CLOCK_INPUT */
};

/* Subtype table for serial_bus -- I2C, SPI, UART, and CSI2 */
@@ -136,6 +138,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
acpi_rs_dump_pin_group, /* ACPI_RESOURCE_TYPE_PIN_GROUP */
acpi_rs_dump_pin_group_function, /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
acpi_rs_dump_pin_group_config, /* ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
+ acpi_rs_dump_clock_input, /* ACPI_RESOURCE_TYPE_CLOCK_INPUT */
};

struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = {
@@ -178,6 +181,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = {
sizeof(struct aml_resource_pin_group), /* ACPI_RESOURCE_TYPE_PIN_GROUP */
sizeof(struct aml_resource_pin_group_function), /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
sizeof(struct aml_resource_pin_group_config), /* ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
+ sizeof(struct aml_resource_clock_input), /* ACPI_RESOURCE_TYPE_CLOCK_INPUT */
};

const u8 acpi_gbl_resource_struct_sizes[] = {
@@ -221,6 +225,7 @@ const u8 acpi_gbl_resource_struct_sizes[] = {
ACPI_RS_SIZE(struct acpi_resource_pin_group),
ACPI_RS_SIZE(struct acpi_resource_pin_group_function),
ACPI_RS_SIZE(struct acpi_resource_pin_group_config),
+ ACPI_RS_SIZE(struct acpi_resource_clock_input),
};

const u8 acpi_gbl_aml_resource_serial_bus_sizes[] = {
diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c
index f9267956535c..279bfa27da94 100644
--- a/drivers/acpi/acpica/rsserial.c
+++ b/drivers/acpi/acpica/rsserial.c
@@ -109,6 +109,55 @@ struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = {
0},
};

+/*******************************************************************************
+ *
+ * acpi_rs_convert_clock_input
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_clock_input[8] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_CLOCK_INPUT,
+ ACPI_RS_SIZE(struct acpi_resource_clock_input),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_clock_input)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_CLOCK_INPUT,
+ sizeof(struct aml_resource_clock_input),
+ 0}
+ ,
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.clock_input.revision_id),
+ AML_OFFSET(clock_input.revision_id),
+ 1}
+ ,
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.clock_input.mode),
+ AML_OFFSET(clock_input.flags),
+ 0}
+ ,
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.clock_input.scale),
+ AML_OFFSET(clock_input.flags),
+ 1}
+ ,
+
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.clock_input.frequency_divisor),
+ AML_OFFSET(clock_input.frequency_divisor),
+ 2}
+ ,
+
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.clock_input.frequency_numerator),
+ AML_OFFSET(clock_input.frequency_numerator),
+ 4}
+ ,
+
+ /* Resource Source */
+ {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.clock_input.resource_source),
+ 0,
+ sizeof(struct aml_resource_clock_input)}
+ ,
+
+};
+
/*******************************************************************************
*
* acpi_rs_convert_pinfunction
diff --git a/drivers/acpi/acpica/utresdecode.c b/drivers/acpi/acpica/utresdecode.c
index 85730fcd7d00..d801d9069841 100644
--- a/drivers/acpi/acpica/utresdecode.c
+++ b/drivers/acpi/acpica/utresdecode.c
@@ -284,4 +284,15 @@ const char *acpi_gbl_ptyp_decode[] = {
"Input Schmitt Trigger",
};

+const char *acpi_gbl_clock_input_mode[] = {
+ "Fixed",
+ "Variable",
+};
+
+const char *acpi_gbl_clock_input_scale[] = {
+ "Hz",
+ "KHz",
+ "MHz",
+};
+
#endif
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index 16f9a7035b39..e1cc3d348750 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -57,6 +57,8 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group),
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group_function),
ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group_config),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_clock_input),
+
};

const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = {
@@ -114,6 +116,7 @@ static const u8 acpi_gbl_resource_types[] = {
ACPI_VARIABLE_LENGTH, /* 10 pin_group */
ACPI_VARIABLE_LENGTH, /* 11 pin_group_function */
ACPI_VARIABLE_LENGTH, /* 12 pin_group_config */
+ ACPI_VARIABLE_LENGTH, /* 13 clock_input */
};

/*******************************************************************************
diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h
index e5c875f91203..f913983ef55e 100644
--- a/include/acpi/acrestyp.h
+++ b/include/acpi/acrestyp.h
@@ -536,6 +536,15 @@ struct acpi_resource_pin_config {
u8 *vendor_data;
};

+struct acpi_resource_clock_input {
+ u8 revision_id;
+ u8 mode;
+ u8 scale;
+ u16 frequency_divisor;
+ u32 frequency_numerator;
+ struct acpi_resource_source resource_source;
+};
+
/* Values for pin_config_type field above */

#define ACPI_PIN_CONFIG_DEFAULT 0
@@ -613,7 +622,8 @@ struct acpi_resource_pin_group_config {
#define ACPI_RESOURCE_TYPE_PIN_GROUP 22 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION 23 /* ACPI 6.2 */
#define ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG 24 /* ACPI 6.2 */
-#define ACPI_RESOURCE_TYPE_MAX 24
+#define ACPI_RESOURCE_TYPE_CLOCK_INPUT 25 /* ACPI 6.5 */
+#define ACPI_RESOURCE_TYPE_MAX 25

/* Master union for resource descriptors */

@@ -647,6 +657,7 @@ union acpi_resource_data {
struct acpi_resource_pin_group pin_group;
struct acpi_resource_pin_group_function pin_group_function;
struct acpi_resource_pin_group_config pin_group_config;
+ struct acpi_resource_clock_input clock_input;

/* Common fields */

--
2.35.3