[media] V4L2: soc-camera: fix uninitialised use compiler warning

[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / include / media / soc_camera.h

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index dfa24df960dfb328b95af2b7948f6cfda44666ce..34d2414f2b8c0a6207fb3d4dfe2c34d644f7d6aa 100644 (file)
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -19,11 +19,13 @@
 #include <linux/videodev2.h>
 #include <media/videobuf-core.h>
 #include <media/videobuf2-core.h>
+#include <media/v4l2-async.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 
 struct file;
 struct soc_camera_desc;
+struct soc_camera_async_client;
 
 struct soc_camera_device {
        struct list_head list;          /* list of all registered devices */
@@ -49,6 +51,10 @@ struct soc_camera_device {
        /* soc_camera.c private count. Only accessed with .host_lock held */
        int use_count;
        struct file *streamer;          /* stream owner */
+       struct v4l2_clk *clk;
+       /* Asynchronous subdevice management */
+       struct soc_camera_async_client *sasc;
+       /* video buffer queue */
        union {
                struct videobuf_queue vb_vidq;
                struct vb2_queue vb2_vidq;
@@ -58,16 +64,30 @@ struct soc_camera_device {
 /* Host supports programmable stride */
 #define SOCAM_HOST_CAP_STRIDE          (1 << 0)
 
+enum soc_camera_subdev_role {
+       SOCAM_SUBDEV_DATA_SOURCE = 1,
+       SOCAM_SUBDEV_DATA_SINK,
+       SOCAM_SUBDEV_DATA_PROCESSOR,
+};
+
+struct soc_camera_async_subdev {
+       struct v4l2_async_subdev asd;
+       enum soc_camera_subdev_role role;
+};
+
 struct soc_camera_host {
        struct v4l2_device v4l2_dev;
        struct list_head list;
-       struct mutex host_lock;         /* Protect pipeline modifications */
+       struct mutex host_lock;         /* Main synchronisation lock */
+       struct mutex clk_lock;          /* Protect pipeline modifications */
        unsigned char nr;               /* Host number */
        u32 capabilities;
        struct soc_camera_device *icd;  /* Currently attached client */
        void *priv;
        const char *drv_name;
        struct soc_camera_host_ops *ops;
+       struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */
+       unsigned int *asd_sizes;        /* 0-terminated array of asd group sizes */
 };
 
 struct soc_camera_host_ops {
@@ -160,6 +180,7 @@ struct soc_camera_host_desc {
 };
 
 /*
+ * Platform data for "soc-camera-pdrv"
  * This MUST be kept binary-identical to struct soc_camera_link below, until
  * it is completely replaced by this one, after which we can split it into its
  * two components.
@@ -325,14 +346,17 @@ static inline void soc_camera_limit_side(int *start, int *length,
 unsigned long soc_camera_apply_board_flags(struct soc_camera_subdev_desc *ssdd,
                                           const struct v4l2_mbus_config *cfg);
 
-int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd);
-int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd);
+int soc_camera_power_init(struct device *dev, struct soc_camera_subdev_desc *ssdd);
+int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
+                       struct v4l2_clk *clk);
+int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd,
+                        struct v4l2_clk *clk);
 
 static inline int soc_camera_set_power(struct device *dev,
-                               struct soc_camera_subdev_desc *ssdd, bool on)
+               struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk, bool on)
 {
-       return on ? soc_camera_power_on(dev, ssdd)
-                 : soc_camera_power_off(dev, ssdd);
+       return on ? soc_camera_power_on(dev, ssdd, clk)
+                 : soc_camera_power_off(dev, ssdd, clk);
 }
 
 /* This is only temporary here - until v4l2-subdev begins to link to video_device */