drivers: camera: Add versioning to tvcf

Add version information to identify the right
combination of features enabled in the camera
framework.

Bug 2433156

Change-Id: I2d69308f707a03b8439e6c5ca458680e3babd96d
Signed-off-by: Bhanu Murthy V <bmurthyv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1941461
(cherry picked from commit cbe334bde5ad8492973608d8cfda17d3765ad6e9)
Reviewed-on: https://git-master.nvidia.com/r/2006759
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Tested-by: Ian Kaszubski <ikaszubski@nvidia.com>
Reviewed-by: Vincent Chung <vincentc@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Frank Chen <frankc@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 21 insertions, 1 deletions

diff --git a/drivers/media/platform/tegra/camera/tegracam_core.c b/drivers/media/platform/tegra/camera/tegracam_core.c
index 6765f96ad..6e5249c1d 100644
--- a/drivers/media/platform/tegra/camera/tegracam_core.c
+++ b/drivers/media/platform/tegra/camera/tegracam_core.c
@@ -19,6 +19,17 @@
 #include <media/tegra-v4l2-camera.h>
 #include <media/tegracam_core.h>
 
+/* use semantic versioning convention */
+#define TEGRACAM_MAJOR_VERSION 2
+#define TEGRACAM_MINOR_VERSION 0
+#define TEGRACAM_PATCH_VERSION 0
+
+u32 tegracam_version(u8 major, u8 minor, u8 patch)
+{
+        return ((major << 16) | (minor << 8) | patch);
+}
+EXPORT_SYMBOL_GPL(tegracam_version);
+
 struct tegracam_device *to_tegracam_device(struct camera_common_data *data)
 {
         /* fix this by moving subdev to base struct */
@@ -119,6 +130,13 @@ int tegracam_device_register(struct tegracam_device *tc_dev)
                 s_data->frmfmt[mode_idx].size.height;
         s_data->def_clk_freq = signal_props->mclk_freq * 1000;
 
+        /* add version info to identify the right feature set */
+        tc_dev->version = tegracam_version(TEGRACAM_MAJOR_VERSION,
+                        TEGRACAM_MINOR_VERSION, TEGRACAM_PATCH_VERSION);
+        dev_info(dev, "tegracam sensor driver:%s_v%d.%d.%d\n",
+                        tc_dev->name, TEGRACAM_MAJOR_VERSION,
+                        TEGRACAM_MINOR_VERSION, TEGRACAM_PATCH_VERSION);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegracam_device_register);
diff --git a/include/media/tegracam_core.h b/include/media/tegracam_core.h
index 5725cb437..8a7cdb9d0 100644
--- a/include/media/tegracam_core.h
+++ b/include/media/tegracam_core.h
@@ -1,7 +1,7 @@
 /**
  * tegracam_core.h - tegra camera framework core utilities
  *
- * Copyright (c) 2017-2018, NVIDIA Corporation.  All rights reserved.
+ * Copyright (c) 2017-2019, NVIDIA Corporation.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -24,6 +24,7 @@
 struct tegracam_device {
         struct camera_common_data       *s_data;
         struct media_pad                pad;
+        u32                             version;
         /* variables to be filled by the driver to register */
         char                            name[32];
         struct i2c_client               *client;
@@ -39,6 +40,7 @@ struct tegracam_device {
         void    *priv;
 };
 
+u32 tegracam_version(u8 major, u8 minor, u8 patch);
 struct tegracam_device *to_tegracam_device(struct camera_common_data *data);
 
 void tegracam_set_privdata(struct tegracam_device *tc_dev, void *priv);