[PATCH] misc: fastrpc: add ioctl for attaching to sensors pd

[Jonathan Marek]

Initializing sensors requires attaching to pd 2. Add an ioctl for that.

This corresponds to FASTRPC_INIT_ATTACH_SENSORS in the downstream driver.

Signed-off-by: Jonathan Marek <jonat...@marek.ca>
---
 drivers/misc/fastrpc.c      | 9 ++++++---
 include/uapi/misc/fastrpc.h | 5 +++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 7939c55daceb..ea5e9ca0d705 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1276,7 +1276,7 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, 
char __user *argp)
        return 0;
 }
 
-static int fastrpc_init_attach(struct fastrpc_user *fl)
+static int fastrpc_init_attach(struct fastrpc_user *fl, int pd)
 {
        struct fastrpc_invoke_args args[1];
        int tgid = fl->tgid;
@@ -1287,7 +1287,7 @@ static int fastrpc_init_attach(struct fastrpc_user *fl)
        args[0].fd = -1;
        args[0].reserved = 0;
        sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_ATTACH, 1, 0);
-       fl->pd = 0;
+       fl->pd = pd;
 
        return fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE,
                                       sc, &args[0]);
@@ -1477,7 +1477,10 @@ static long fastrpc_device_ioctl(struct file *file, 
unsigned int cmd,
                err = fastrpc_invoke(fl, argp);
                break;
        case FASTRPC_IOCTL_INIT_ATTACH:
-               err = fastrpc_init_attach(fl);
+               err = fastrpc_init_attach(fl, 0);
+               break;
+       case FASTRPC_IOCTL_INIT_ATTACH_SNS:
+               err = fastrpc_init_attach(fl, 2);
                break;
        case FASTRPC_IOCTL_INIT_CREATE:
                err = fastrpc_init_create_process(fl, argp);
diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h
index 07de2b7aac85..0a89f95463f6 100644
--- a/include/uapi/misc/fastrpc.h
+++ b/include/uapi/misc/fastrpc.h
@@ -10,8 +10,9 @@
 #define FASTRPC_IOCTL_INVOKE           _IOWR('R', 3, struct fastrpc_invoke)
 #define FASTRPC_IOCTL_INIT_ATTACH      _IO('R', 4)
 #define FASTRPC_IOCTL_INIT_CREATE      _IOWR('R', 5, struct 
fastrpc_init_create)
-#define FASTRPC_IOCTL_MMAP              _IOWR('R', 6, struct fastrpc_req_mmap)
-#define FASTRPC_IOCTL_MUNMAP            _IOWR('R', 7, struct 
fastrpc_req_munmap)
+#define FASTRPC_IOCTL_MMAP             _IOWR('R', 6, struct fastrpc_req_mmap)
+#define FASTRPC_IOCTL_MUNMAP           _IOWR('R', 7, struct fastrpc_req_munmap)
+#define FASTRPC_IOCTL_INIT_ATTACH_SNS  _IO('R', 8)
 
 struct fastrpc_invoke_args {
        __u64 ptr;
-- 
2.26.1