From 317b043056ef595bf7d4af2c807946afb405c117 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 16 Jan 2023 15:44:43 +0100 Subject: [PATCH] media: i2c: imx290: Compute pixel rate and blanking in one place Upstream commit 693b5cb598cc The hblank, vblank, pixel rate and link frequency values and limits are currently computed when creating controls, in imx290_ctrl_init(), and updated in imx290_ctrl_update(). This duplicates the logic in different places. Simplify the code by setting the control values and limits to hardcoded values when creating the controls, and call imx290_ctrl_update() to then update them. Signed-off-by: Laurent Pinchart Acked-by: Alexander Stein Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/imx290.c | 43 +++++++++++++++++--------------------- 1 file changed, 19 insertions(+), 24 deletions(-) --- a/drivers/media/i2c/imx290.c +++ b/drivers/media/i2c/imx290.c @@ -547,18 +547,6 @@ static int imx290_write_current_format(s return 0; } -static u64 imx290_calc_pixel_rate(struct imx290 *imx290, - const struct imx290_mode *mode) -{ - s64 link_freq = imx290_link_freqs_ptr(imx290)[mode->link_freq_index]; - u64 pixel_rate; - - /* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */ - pixel_rate = link_freq * 2 * imx290->nlanes; - do_div(pixel_rate, imx290->bpp); - return pixel_rate; -} - /* ---------------------------------------------------------------------------- * Controls */ @@ -632,6 +620,8 @@ static void imx290_ctrl_update(struct im { unsigned int hblank = mode->hmax - mode->width; unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height; + s64 link_freq = imx290_link_freqs_ptr(imx290)[mode->link_freq_index]; + u64 pixel_rate; /* * This function may be called from imx290_set_fmt() before controls @@ -640,9 +630,12 @@ static void imx290_ctrl_update(struct im if (!imx290->ctrls.lock) return; + /* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */ + pixel_rate = link_freq * 2 * imx290->nlanes; + do_div(pixel_rate, imx290->bpp); + __v4l2_ctrl_s_ctrl(imx290->link_freq, mode->link_freq_index); - __v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate, - imx290_calc_pixel_rate(imx290, mode)); + __v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate, pixel_rate); __v4l2_ctrl_modify_range(imx290->hblank, hblank, hblank, 1, hblank); __v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank, 1, vblank); @@ -651,8 +644,6 @@ static void imx290_ctrl_update(struct im static int imx290_ctrl_init(struct imx290 *imx290) { struct v4l2_fwnode_device_properties props; - unsigned int blank; - u64 pixel_rate; int ret; ret = v4l2_fwnode_device_parse(imx290->dev, &props); @@ -682,6 +673,11 @@ static int imx290_ctrl_init(struct imx29 V4L2_CID_EXPOSURE, 1, IMX290_VMAX_DEFAULT - 2, 1, IMX290_VMAX_DEFAULT - 2); + /* + * Set the link frequency, pixel rate, horizontal blanking and vertical + * blanking to hardcoded values, they will be updated by + * imx290_ctrl_update(). + */ imx290->link_freq = v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_LINK_FREQ, @@ -690,27 +686,22 @@ static int imx290_ctrl_init(struct imx29 if (imx290->link_freq) imx290->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; - pixel_rate = imx290_calc_pixel_rate(imx290, imx290->current_mode); imx290->pixel_rate = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_PIXEL_RATE, - 1, INT_MAX, 1, pixel_rate); + 1, INT_MAX, 1, 1); v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(imx290_test_pattern_menu) - 1, 0, 0, imx290_test_pattern_menu); - blank = imx290->current_mode->hmax - imx290->current_mode->width; imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, - V4L2_CID_HBLANK, blank, blank, 1, - blank); + V4L2_CID_HBLANK, 1, 1, 1, 1); if (imx290->hblank) imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; - blank = IMX290_VMAX_DEFAULT - imx290->current_mode->height; imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, - V4L2_CID_VBLANK, blank, blank, 1, - blank); + V4L2_CID_VBLANK, 1, 1, 1, 1); if (imx290->vblank) imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -725,6 +716,10 @@ static int imx290_ctrl_init(struct imx29 return ret; } + mutex_lock(imx290->ctrls.lock); + imx290_ctrl_update(imx290, imx290->current_mode); + mutex_unlock(imx290->ctrls.lock); + return 0; }