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Commit 880d45f8 authored by Sakari Ailus's avatar Sakari Ailus Committed by Mauro Carvalho Chehab
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[media] ov13858: Use do_div() for dividing a 64-bit number 



ov13858 contained a 64-bit division. Use do_div() for calculating it.

Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: default avatarChiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 58020c9f

drivers/media/i2c/ov13858.c

+10 −4
Original line number Diff line number Diff line
@@ -951,7 +951,13 @@ static const char * const ov13858_test_pattern_menu[] = { 
 * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample

 * data rate => double data rate; number of lanes => 4; bits per pixel => 10

 */

#define LINK_FREQ_TO_PIXEL_RATE(f)	(((f) * 2 * 4) / 10)

static u64 link_freq_to_pixel_rate(u64 f)

{

	f *= 2 * 4;

	do_div(f, 10);



	return f;

}



/* Menu items for LINK_FREQ V4L2 control */

static const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
@@ -1404,7 +1410,7 @@ ov13858_set_pad_format(struct v4l2_subdev *sd, 
		ov13858->cur_mode = mode;

		__v4l2_ctrl_s_ctrl(ov13858->link_freq, mode->link_freq_index);

		link_freq = link_freq_menu_items[mode->link_freq_index];

		pixel_rate = LINK_FREQ_TO_PIXEL_RATE(link_freq);

		pixel_rate = link_freq_to_pixel_rate(link_freq);

		__v4l2_ctrl_s_ctrl_int64(ov13858->pixel_rate, pixel_rate);



		/* Update limits and set FPS to default */
@@ -1642,8 +1648,8 @@ static int ov13858_init_controls(struct ov13858 *ov13858) 
				link_freq_menu_items);

	ov13858->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;



	pixel_rate_max = LINK_FREQ_TO_PIXEL_RATE(link_freq_menu_items[0]);

	pixel_rate_min = LINK_FREQ_TO_PIXEL_RATE(link_freq_menu_items[1]);

	pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);

	pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);

	/* By default, PIXEL_RATE is read only */

	ov13858->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops,

						V4L2_CID_PIXEL_RATE,