acpi: Support copying properties from device tree to ACPI
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 ACPI DP table for
passing to linux. Add some convenience functions to help with this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/test/dm/acpi_dp.c b/test/dm/acpi_dp.c
index 8b81226..93604b8 100644
--- a/test/dm/acpi_dp.c
+++ b/test/dm/acpi_dp.c
@@ -423,3 +423,70 @@
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);