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.rap...@intel.com>
---
Changes in v2:
- Fix typo, from PLL to PPL.
- Suffixed ULL instead of typecasting to uint64_t
drivers/media/i2c/ov13858.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c
index 86550d8..9b87820 100644
--- a/drivers/media/i2c/ov13858.c
+++ b/drivers/media/i2c/ov13858.c
@@ -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
@@ -944,31 +944,33 @@ struct ov13858_mode {
/* 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,
@@ -1634,10 +1636,10 @@ 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;
ov13858->exposure = v4l2_ctrl_new_std(
--
1.9.1
