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Message-ID: <CAPY8ntCSSe-T7ZjNZZ2-qQWcJd+rOFJwF2HY41NCKhx0T+weHA@mail.gmail.com>
Date: Thu, 2 Jan 2025 16:37:56 +0000
From: Dave Stevenson <dave.stevenson@...pberrypi.com>
To: Jai Luthra <jai.luthra@...asonboard.com>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>, linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org, Jacopo Mondi <jacopo.mondi@...asonboard.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v5 2/5] media: i2c: imx219: Rename VTS to FRM_LENGTH
Hi Jai
Thanks for the patch
On Mon, 30 Dec 2024 at 06:12, Jai Luthra <jai.luthra@...asonboard.com> wrote:
>
> The IMX219 datasheet uses the terms FRM_LENGTH and LINE_LENGTH instead
> of VTS/HTS.
nit: This patch doesn't make any changes to HTS / LINE_LENGTH as there
are no references to it (yet - that's patch 3/5)
Taken with the context of the commit subject, it's fine by me.
>
> Signed-off-by: Jai Luthra <jai.luthra@...asonboard.com>
Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
> ---
> drivers/media/i2c/imx219.c | 31 +++++++++++++++----------------
> 1 file changed, 15 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> index 0486bbc046cb9c36afd911eb799c1b010a01d496..8565b1b030be2ee24bcc37415e99ee4ef83cc683 100644
> --- a/drivers/media/i2c/imx219.c
> +++ b/drivers/media/i2c/imx219.c
> @@ -70,9 +70,8 @@
> #define IMX219_EXPOSURE_MAX 65535
>
> /* V_TIMING internal */
> -#define IMX219_REG_VTS CCI_REG16(0x0160)
> -#define IMX219_VTS_MAX 0xffff
> -
> +#define IMX219_REG_FRM_LENGTH CCI_REG16(0x0160)
> +#define IMX219_FLL_MAX 0xffff
> #define IMX219_VBLANK_MIN 32
>
> /* HBLANK control - read only */
> @@ -154,7 +153,7 @@ struct imx219_mode {
> unsigned int height;
>
> /* V-timing */
> - unsigned int vts_def;
> + unsigned int fll_def;
> };
>
> static const struct cci_reg_sequence imx219_common_regs[] = {
> @@ -289,25 +288,25 @@ static const struct imx219_mode supported_modes[] = {
> /* 8MPix 15fps mode */
> .width = 3280,
> .height = 2464,
> - .vts_def = 3526,
> + .fll_def = 3526,
> },
> {
> /* 1080P 30fps cropped */
> .width = 1920,
> .height = 1080,
> - .vts_def = 1763,
> + .fll_def = 1763,
> },
> {
> /* 2x2 binned 30fps mode */
> .width = 1640,
> .height = 1232,
> - .vts_def = 1763,
> + .fll_def = 1763,
> },
> {
> /* 640x480 30fps mode */
> .width = 640,
> .height = 480,
> - .vts_def = 1763,
> + .fll_def = 1763,
> },
> };
>
> @@ -418,7 +417,7 @@ static int imx219_set_ctrl(struct v4l2_ctrl *ctrl)
> imx219->hflip->val | imx219->vflip->val << 1, &ret);
> break;
> case V4L2_CID_VBLANK:
> - cci_write(imx219->regmap, IMX219_REG_VTS,
> + cci_write(imx219->regmap, IMX219_REG_FRM_LENGTH,
> format->height + ctrl->val, &ret);
> break;
> case V4L2_CID_TEST_PATTERN_RED:
> @@ -493,15 +492,15 @@ static int imx219_init_controls(struct imx219 *imx219)
> /* Initial vblank/hblank/exposure parameters based on current mode */
> imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
> V4L2_CID_VBLANK, IMX219_VBLANK_MIN,
> - IMX219_VTS_MAX - mode->height, 1,
> - mode->vts_def - mode->height);
> + IMX219_FLL_MAX - mode->height, 1,
> + mode->fll_def - mode->height);
> hblank = IMX219_PPL_DEFAULT - mode->width;
> imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
> V4L2_CID_HBLANK, hblank, hblank,
> 1, hblank);
> if (imx219->hblank)
> imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
> - exposure_max = mode->vts_def - 4;
> + exposure_max = mode->fll_def - 4;
> exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
> exposure_max : IMX219_EXPOSURE_DEFAULT;
> imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
> @@ -847,12 +846,12 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
>
> /* Update limits and set FPS to default */
> __v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN,
> - IMX219_VTS_MAX - mode->height, 1,
> - mode->vts_def - mode->height);
> + IMX219_FLL_MAX - mode->height, 1,
> + mode->fll_def - mode->height);
> __v4l2_ctrl_s_ctrl(imx219->vblank,
> - mode->vts_def - mode->height);
> + mode->fll_def - mode->height);
> /* Update max exposure while meeting expected vblanking */
> - exposure_max = mode->vts_def - 4;
> + exposure_max = mode->fll_def - 4;
> exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
> exposure_max : IMX219_EXPOSURE_DEFAULT;
> __v4l2_ctrl_modify_range(imx219->exposure,
>
> --
> 2.47.1
>
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