diff options
| -rw-r--r-- | arch/arm/mach-snapdragon/of_fixup.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-snapdragon/of_fixup.c b/arch/arm/mach-snapdragon/of_fixup.c index 1298b774c1e..374e6262db4 100644 --- a/arch/arm/mach-snapdragon/of_fixup.c +++ b/arch/arm/mach-snapdragon/of_fixup.c @@ -28,6 +28,7 @@ #include <linux/errno.h> #include <linker_lists.h> #include <stdlib.h> +#include <tee/optee.h> #include <time.h> /** @@ -228,6 +229,37 @@ static void fixup_usb_nodes(struct device_node *root) } } +static void add_optee_node(struct device_node *root) +{ + struct device_node *fw = NULL, *optee = NULL; + int ret; + + fw = of_find_node_by_path("/firmware"); + if (!fw) { + log_err("Failed to find /firmware node\n"); + return; + } + + ret = of_add_subnode(fw, "optee", strlen("optee") + 1, &optee); + if (ret) { + log_err("Failed to add 'optee' subnode: %d\n", ret); + return; + } + + ret = of_write_prop(optee, "compatible", strlen("linaro,optee-tz") + 1, + "linaro,optee-tz"); + if (ret) { + log_err("Failed to add optee 'compatible' property: %d\n", ret); + return; + } + + ret = of_write_prop(optee, "method", strlen("smc") + 1, "smc"); + if (ret) { + log_err("Failed to add optee 'method' property: %d\n", ret); + return; + } +} + #define time_call(func, ...) \ do { \ u64 start = timer_get_us(); \ @@ -241,6 +273,9 @@ static int qcom_of_fixup_nodes(void * __maybe_unused ctx, struct event *event) time_call(fixup_usb_nodes, root); + if (IS_ENABLED(CONFIG_OPTEE) && is_optee_smc_api()) + time_call(add_optee_node, root); + return 0; } |