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Subject[RFC PATCH 2/2] optee: add ACPI support
Date
Add support for devices that expose the presence of OPTEE via device
object in the ACPI namespace.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
drivers/tee/optee/core.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index 61ea65cfaedd..94b2fd08b446 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -14,6 +14,7 @@

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

+#include <linux/acpi.h>
#include <linux/arm-smccc.h>
#include <linux/errno.h>
#include <linux/io.h>
@@ -689,12 +690,21 @@ static const struct of_device_id optee_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, optee_dt_match);

+#ifdef CONFIG_ACPI
+static const struct acpi_device_id optee_acpi_match[] = {
+ { "LNRO0020" },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, optee_acpi_match);
+#endif
+
static struct platform_driver optee_driver = {
.probe = optee_probe,
.remove = optee_remove,
.driver = {
.name = "optee",
.of_match_table = optee_dt_match,
+ .acpi_match_table = ACPI_PTR(optee_acpi_match),
},
};
module_platform_driver(optee_driver);
--
2.19.2
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