mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-23 01:10:04 +00:00
Code Issues Releases Wiki Activity

media: ov13858: Correct link-frequency and pixel-rate

Browse source 
Previously both link-frequency and pixel-rate reported by
the sensor was incorrect, resulting in incorrect FPS.
Report link-frequency in Hz rather than link data rate in bps.
Calculate pixel-rate from link-frequency.

Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Chiranjeevi Rapolu 2017-07-29 03:00:39 -04:00 committed by Mauro Carvalho Chehab
parent 33eea13263
commit 89d8b615f2
1 changed files with 15 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
drivers/media/i2c/ov13858.c
View file

@ -60,8 +60,8 @@
#define OV13858_VBLANK_MIN 56
/* HBLANK control - read only */
#define OV13858_PPL_540MHZ 2244
#define OV13858_PPL_1080MHZ 4488
#define OV13858_PPL_270MHZ 2244
#define OV13858_PPL_540MHZ 4488
/* Exposure control */
#define OV13858_REG_EXPOSURE 0x3500
@ -943,31 +943,33 @@ static const char * const ov13858_test_pattern_menu[] = {
/* Configurations for supported link frequencies */
#define OV13858_NUM_OF_LINK_FREQS 2
#define OV13858_LINK_FREQ_1080MBPS 1080000000
#define OV13858_LINK_FREQ_540MBPS 540000000
#define OV13858_LINK_FREQ_540MHZ 540000000ULL
#define OV13858_LINK_FREQ_270MHZ 270000000ULL
#define OV13858_LINK_FREQ_INDEX_0 0
#define OV13858_LINK_FREQ_INDEX_1 1
/* Menu items for LINK_FREQ V4L2 control */
static const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
OV13858_LINK_FREQ_1080MBPS,
OV13858_LINK_FREQ_540MBPS
OV13858_LINK_FREQ_540MHZ,
OV13858_LINK_FREQ_270MHZ
};
/* Link frequency configs */
static const struct ov13858_link_freq_config
link_freq_configs[OV13858_NUM_OF_LINK_FREQS] = {
{
.pixel_rate = 864000000,
.pixels_per_line = OV13858_PPL_1080MHZ,
/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
.pixel_rate = (OV13858_LINK_FREQ_540MHZ * 2 * 4) / 10,
.pixels_per_line = OV13858_PPL_540MHZ,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mipi_data_rate_1080mbps),
.regs = mipi_data_rate_1080mbps,
}
},
{
.pixel_rate = 432000000,
.pixels_per_line = OV13858_PPL_540MHZ,
/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
.pixel_rate = (OV13858_LINK_FREQ_270MHZ * 2 * 4) / 10,
.pixels_per_line = OV13858_PPL_270MHZ,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mipi_data_rate_540mbps),
.regs = mipi_data_rate_540mbps,
@ -1637,10 +1639,10 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
ov13858->hblank = v4l2_ctrl_new_std(
ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_HBLANK,
OV13858_PPL_1080MHZ - ov13858->cur_mode->width,
OV13858_PPL_1080MHZ - ov13858->cur_mode->width,
OV13858_PPL_540MHZ - ov13858->cur_mode->width,
OV13858_PPL_540MHZ - ov13858->cur_mode->width,
1,
OV13858_PPL_1080MHZ - ov13858->cur_mode->width);
OV13858_PPL_540MHZ - ov13858->cur_mode->width);
ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
exposure_max = ov13858->cur_mode->vts - 8;