@@ -109,6 +109,7 @@
uint-value = <(-1234)>;
int64-value = /bits/ 64 <0x1111222233334444>;
int-array = <5678 9123 4567>;
+ str-value = "test string";
interrupts-extended = <&irq 3 0>;
};
@@ -230,4 +230,54 @@ struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name,
*/
int acpi_dp_write(struct acpi_ctx *ctx, struct acpi_dp *table);
+/**
+ * acpi_dp_ofnode_copy_int() - Copy a property from device tree to DP
+ *
+ * This copies an integer property from the device tree to the ACPI DP table.
+ *
+ * @dev: Device to copy from
+ * @dp: DP to copy to
+ * @prop: Property name to copy
+ * @return 0 if OK, -ve on error
+ */
+int acpi_dp_ofnode_copy_int(ofnode node, struct acpi_dp *dp, const char *prop);
+
+/**
+ * acpi_dp_dev_copy_str() - Copy a property from device tree to DP
+ *
+ * This copies a string property from the device tree to the ACPI DP table.
+ *
+ * @dev: Device to copy from
+ * @dp: DP to copy to
+ * @prop: Property name to copy
+ * @return 0 if OK, -ve on error
+ */
+int acpi_dp_ofnode_copy_str(ofnode node, struct acpi_dp *dp, const char *prop);
+
+/**
+ * acpi_dp_dev_copy_int() - Copy a property from device tree to DP
+ *
+ * This copies an integer property from the device tree to the ACPI DP table.
+ *
+ * @dev: Device to copy from
+ * @dp: DP to copy to
+ * @prop: Property name to copy
+ * @return 0 if OK, -ve on error
+ */
+int acpi_dp_dev_copy_int(const struct udevice *dev, struct acpi_dp *dp,
+ const char *prop);
+
+/**
+ * acpi_dp_dev_copy_str() - Copy a property from device tree to DP
+ *
+ * This copies a string property from the device tree to the ACPI DP table.
+ *
+ * @dev: Device to copy from
+ * @dp: DP to copy to
+ * @prop: Property name to copy
+ * @return 0 if OK, -ve on error
+ */
+int acpi_dp_dev_copy_str(const struct udevice *dev, struct acpi_dp *dp,
+ const char *prop);
+
#endif
@@ -341,3 +341,55 @@ struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name,
return gpio;
}
+
+int acpi_dp_ofnode_copy_int(ofnode node, struct acpi_dp *dp, const char *prop)
+{
+ int ret;
+ u32 val = 0;
+
+ ret = ofnode_read_u32(node, prop, &val);
+ if (ret)
+ return ret;
+ acpi_dp_add_integer(dp, prop, val);
+
+ return ret;
+}
+
+int acpi_dp_ofnode_copy_str(ofnode node, struct acpi_dp *dp, const char *prop)
+{
+ const char *val;
+
+ val = ofnode_read_string(node, prop);
+ if (!val)
+ return -EINVAL;
+ acpi_dp_add_string(dp, prop, val);
+
+ return 0;
+}
+
+int acpi_dp_dev_copy_int(const struct udevice *dev, struct acpi_dp *dp,
+ const char *prop)
+{
+ int ret;
+ u32 val = 0;
+
+ ret = dev_read_u32(dev, prop, &val);
+ if (ret)
+ return ret;
+ acpi_dp_add_integer(dp, prop, val);
+
+ return ret;
+}
+
+int acpi_dp_dev_copy_str(const struct udevice *dev, struct acpi_dp *dp,
+ const char *prop)
+{
+ const char *val;
+
+ val = dev_read_string(dev, prop);
+ if (!val)
+ return -EINVAL;
+ acpi_dp_add_string(dp, prop, val);
+
+ return 0;
+}
@@ -441,3 +441,70 @@ static int dm_test_acpi_dp_gpio(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_acpi_dp_gpio, 0);
+
+/* Test copying info from the device tree to ACPI tables */
+static int dm_test_acpi_dp_copy(struct unit_test_state *uts)
+{
+ struct acpi_ctx *ctx;
+ struct udevice *dev;
+ struct acpi_dp *dp;
+ ofnode node;
+ u8 *ptr;
+
+ ut_assertok(alloc_context(&ctx));
+
+ dp = acpi_dp_new_table("FRED");
+ ut_assertnonnull(dp);
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
+ ut_asserteq_str("a-test", dev->name);
+
+ ut_assertok(acpi_dp_dev_copy_int(dev, dp, "int-value"));
+ ut_asserteq(-EINVAL, acpi_dp_dev_copy_int(dev, dp, "missing-value"));
+ ut_assertok(acpi_dp_dev_copy_int(dev, dp, "uint-value"));
+
+ ut_assertok(acpi_dp_dev_copy_str(dev, dp, "str-value"));
+ ut_asserteq(-EINVAL, acpi_dp_dev_copy_str(dev, dp, "missing-value"));
+
+ node = ofnode_path("/chosen");
+ ut_assert(ofnode_valid(node));
+ ut_assertok(acpi_dp_ofnode_copy_int(node, dp, "int-values"));
+ ut_asserteq(-EINVAL,
+ acpi_dp_ofnode_copy_int(node, dp, "missing-value"));
+
+ ut_assertok(acpi_dp_ofnode_copy_str(node, dp, "setting"));
+ ut_asserteq(-EINVAL,
+ acpi_dp_ofnode_copy_str(node, dp, "missing-value"));
+
+ ptr = acpigen_get_current(ctx);
+ ut_assertok(acpi_dp_write(ctx, dp));
+ ut_asserteq(0x9d, acpigen_get_current(ctx) - ptr);
+
+ ut_asserteq(STRING_PREFIX, ptr[0x2b]);
+ ut_asserteq_str("int-value", (char *)ptr + 0x2c);
+ ut_asserteq(WORD_PREFIX, ptr[0x36]);
+ ut_asserteq(1234, get_unaligned((u16 *)(ptr + 0x37)));
+
+ ut_asserteq(STRING_PREFIX, ptr[0x3e]);
+ ut_asserteq_str("uint-value", (char *)ptr + 0x3f);
+ ut_asserteq(DWORD_PREFIX, ptr[0x4a]);
+ ut_asserteq(-1234, get_unaligned((u32 *)(ptr + 0x4b)));
+
+ ut_asserteq(STRING_PREFIX, ptr[0x54]);
+ ut_asserteq_str("str-value", (char *)ptr + 0x55);
+ ut_asserteq(STRING_PREFIX, ptr[0x5f]);
+ ut_asserteq_str("test string", (char *)ptr + 0x60);
+
+ ut_asserteq(STRING_PREFIX, ptr[0x71]);
+ ut_asserteq_str("int-values", (char *)ptr + 0x72);
+ ut_asserteq(WORD_PREFIX, ptr[0x7d]);
+ ut_asserteq(0x1937, get_unaligned((u16 *)(ptr + 0x7e)));
+
+ ut_asserteq(STRING_PREFIX, ptr[0x85]);
+ ut_asserteq_str("setting", (char *)ptr + 0x86);
+ ut_asserteq(STRING_PREFIX, ptr[0x8e]);
+ ut_asserteq_str("sunrise ohoka", (char *)(ptr + 0x8f));
+
+ return 0;
+}
+DM_TEST(dm_test_acpi_dp_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
Some drivers in Linux support both device tree and ACPI. U-Boot itself uses Linux device-tree bindings for its own configuration but does not use ACPI. It is convenient to copy these values over to the device tree for passing to linux. Add some convenience functions to help with this. Signed-off-by: Simon Glass <sjg at chromium.org> --- Changes in v1: None arch/sandbox/dts/test.dts | 1 + include/acpi/acpi_dp.h | 50 +++++++++++++++++++++++++++++ lib/acpi/acpi_dp.c | 52 ++++++++++++++++++++++++++++++ test/dm/acpi_dp.c | 67 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 170 insertions(+)