RE: [PATCH] media: imx258: remove test pattern map from driver
Hi Sakari
Thanks for your feedback.
I will update to the next patch.
B.R.,
Jason
-Original Message-
From: Sakari Ailus [mailto:sakari.ai...@linux.intel.com]
Sent: Wednesday, November 7, 2018 6:32 PM
To: Chen, JasonX Z
Cc: linux-media@vger.kernel.org; Yeh, Andy ;
tf...@chromium.org
Subject: Re: [PATCH] media: imx258: remove test pattern map from driver
Hi Jason,
Thanks for the patch.
On Wed, Nov 07, 2018 at 03:22:23PM +0800, jasonx.z.c...@intel.com wrote:
> From: "Chen, JasonX Z"
>
> 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
> ---
> 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 63360ULL
> #define IMX258_LINK_FREQ_320MHZ 32000ULL
> @@ -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(>sd);
> int ret = 0;
> -
This seems like an unrelated change, and it's a common (and usually good)
practice to add an empty line after variable declarations.
> /*
>* 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 = _pad_ops,
> };
>
> +static const struct media_entity_operations imx258_subdev_entity_ops = {
> + .link_validate = v4l2_subdev_link_validate, };
> +
This seems unrelated as well. Do you need the link validation for something?
As far as I understand, the driver exposes a single source pad; therefore the
link_validate op will never be called.
> 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 = _internal_ops;
> + imx258->sd.entity.ops = _subdev_entity_ops;
Ditto.
> imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
>
--
Kind regards,
Sakari Ailus
sakari.ai...@linux.intel.com
Re: [PATCH] media: imx258: remove test pattern map from driver
Hi Jason,
Thanks for the patch.
On Wed, Nov 07, 2018 at 03:22:23PM +0800, jasonx.z.c...@intel.com wrote:
> From: "Chen, JasonX Z"
>
> 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
> ---
> 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 63360ULL
> #define IMX258_LINK_FREQ_320MHZ 32000ULL
> @@ -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(>sd);
> int ret = 0;
> -
This seems like an unrelated change, and it's a common (and usually good)
practice to add an empty line after variable declarations.
> /*
>* 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 = _pad_ops,
> };
>
> +static const struct media_entity_operations imx258_subdev_entity_ops = {
> + .link_validate = v4l2_subdev_link_validate,
> +};
> +
This seems unrelated as well. Do you need the link validation for something?
As far as I understand, the driver exposes a single source pad; therefore
the link_validate op will never be called.
> 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 = _internal_ops;
> + imx258->sd.entity.ops = _subdev_entity_ops;
Ditto.
> imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
>
--
Kind regards,
Sakari Ailus
sakari.ai...@linux.intel.com
Re: [PATCH] media: imx258: remove test pattern map from driver
Hi Jason,
On Thu, Aug 02, 2018 at 04:17:00PM +0800, jasonx.z.c...@intel.com wrote:
> From: "Chen, JasonX Z"
>
> 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.
Hmm. I think this would be changed based on my comments anyway, but please
explain what you're doing and *why*. HAL is not relevant in this context
I'd say.
>
> Signed-off-by: Chen, JasonX Z
> ---
> 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 63360ULL
> #define IMX258_LINK_FREQ_320MHZ 32000ULL
> @@ -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(>sd);
> int ret = 0;
> -
I think this newline is where it should be.
> /*
>* 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 :
Spaces around "?".
> REG_CONFIG_FLIP_TEST_PATTERN);
> break;
> default:
> @@ -1105,6 +1088,10 @@ static int imx258_identify_module(struct imx258
> *imx258)
> .pad = _pad_ops,
> };
>
> +static const struct media_entity_operations imx258_subdev_entity_ops = {
> + .link_validate = v4l2_subdev_link_validate,
The sensor only has a source pad while the link validate is only needed for
sink pads.
> +};
> +
> 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 = _internal_ops;
> + imx258->sd.entity.ops = _subdev_entity_ops;
> imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
>
--
Regards,
Sakari Ailus
sakari.ai...@linux.intel.com
