From: "Chen, JasonX Z" <jasonx.z.c...@intel.com>

Test Pattern mode be picked at HAL instead of driver.
do a FLIP when userspace use test pattern mode.
add entity_ops for validating imx258 link.

Signed-off-by: Chen, JasonX Z <jasonx.z.c...@intel.com>
---
 drivers/media/i2c/imx258.c | 28 ++++++++--------------------
 1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index 31a1e22..71f9875 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -62,11 +62,6 @@
 
 /* Test Pattern Control */
 #define IMX258_REG_TEST_PATTERN                0x0600
-#define IMX258_TEST_PATTERN_DISABLE    0
-#define IMX258_TEST_PATTERN_SOLID_COLOR        1
-#define IMX258_TEST_PATTERN_COLOR_BARS 2
-#define IMX258_TEST_PATTERN_GREY_COLOR 3
-#define IMX258_TEST_PATTERN_PN9                4
 
 /* Orientation */
 #define REG_MIRROR_FLIP_CONTROL                0x0101
@@ -504,20 +499,12 @@ struct imx258_mode {
 
 static const char * const imx258_test_pattern_menu[] = {
        "Disabled",
-       "Color Bars",
        "Solid Color",
+       "Color Bars",
        "Grey Color Bars",
        "PN9"
 };
 
-static const int imx258_test_pattern_val[] = {
-       IMX258_TEST_PATTERN_DISABLE,
-       IMX258_TEST_PATTERN_COLOR_BARS,
-       IMX258_TEST_PATTERN_SOLID_COLOR,
-       IMX258_TEST_PATTERN_GREY_COLOR,
-       IMX258_TEST_PATTERN_PN9,
-};
-
 /* Configurations for supported link frequencies */
 #define IMX258_LINK_FREQ_634MHZ        633600000ULL
 #define IMX258_LINK_FREQ_320MHZ        320000000ULL
@@ -752,7 +739,6 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
                container_of(ctrl->handler, struct imx258, ctrl_handler);
        struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
        int ret = 0;
-
        /*
         * Applying V4L2 control value only happens
         * when power is up for streaming
@@ -778,13 +764,10 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
        case V4L2_CID_TEST_PATTERN:
                ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN,
                                IMX258_REG_VALUE_16BIT,
-                               imx258_test_pattern_val[ctrl->val]);
-
+                               ctrl->val);
                ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
                                IMX258_REG_VALUE_08BIT,
-                               ctrl->val == imx258_test_pattern_val
-                               [IMX258_TEST_PATTERN_DISABLE] ?
-                               REG_CONFIG_MIRROR_FLIP :
+                               !ctrl->val?REG_CONFIG_MIRROR_FLIP :
                                REG_CONFIG_FLIP_TEST_PATTERN);
                break;
        default:
@@ -1105,6 +1088,10 @@ static int imx258_identify_module(struct imx258 *imx258)
        .pad = &imx258_pad_ops,
 };
 
+static const struct media_entity_operations imx258_subdev_entity_ops = {
+       .link_validate = v4l2_subdev_link_validate,
+};
+
 static const struct v4l2_subdev_internal_ops imx258_internal_ops = {
        .open = imx258_open,
 };
@@ -1250,6 +1237,7 @@ static int imx258_probe(struct i2c_client *client)
 
        /* Initialize subdev */
        imx258->sd.internal_ops = &imx258_internal_ops;
+       imx258->sd.entity.ops  = &imx258_subdev_entity_ops;
        imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
        imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
-- 
1.9.1

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