diff options
| author | Martin Bugge <marbugge@cisco.com> | 2013-08-14 15:52:46 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-08-24 11:23:41 +0400 |
| commit | bb88f325a4685de821d4de352c987bc30bd4ebca (patch) | |
| tree | 26455785fd68c5331a299c10cd0da1a6cd2353c8 /drivers/media/i2c/adv7604.c | |
| parent | 25a64ac95055d87e2e7b86ba3b9a81e91cb55a39 (diff) | |
| download | linux-bb88f325a4685de821d4de352c987bc30bd4ebca.tar.xz | |
[media] adv7604: pixel-clock depends on deep-color-mode
The frequency calculation has to take deep-color mode into account.
While we're at it, also log the deep-color mode in log_status.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c/adv7604.c')
| -rw-r--r-- | drivers/media/i2c/adv7604.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index d093092988f8..6ffe25a5b346 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -992,6 +992,11 @@ static inline bool no_lock_tmds(struct v4l2_subdev *sd) return (io_read(sd, 0x6a) & 0xe0) != 0xe0; } +static inline bool is_hdmi(struct v4l2_subdev *sd) +{ + return hdmi_read(sd, 0x05) & 0x80; +} + static inline bool no_lock_sspd(struct v4l2_subdev *sd) { /* TODO channel 2 */ @@ -1244,12 +1249,21 @@ static int adv7604_query_dv_timings(struct v4l2_subdev *sd, V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; if (DIGITAL_INPUT) { + uint32_t freq; + timings->type = V4L2_DV_BT_656_1120; bt->width = (hdmi_read(sd, 0x07) & 0x0f) * 256 + hdmi_read(sd, 0x08); bt->height = (hdmi_read(sd, 0x09) & 0x0f) * 256 + hdmi_read(sd, 0x0a); - bt->pixelclock = (hdmi_read(sd, 0x06) * 1000000) + + freq = (hdmi_read(sd, 0x06) * 1000000) + ((hdmi_read(sd, 0x3b) & 0x30) >> 4) * 250000; + if (is_hdmi(sd)) { + /* adjust for deep color mode */ + unsigned bits_per_channel = ((hdmi_read(sd, 0x0b) & 0x60) >> 4) + 8; + + freq = freq * 8 / bits_per_channel; + } + bt->pixelclock = freq; bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 + hdmi_read(sd, 0x21); bt->hsync = (hdmi_read(sd, 0x22) & 0x03) * 256 + @@ -1637,7 +1651,7 @@ static void print_avi_infoframe(struct v4l2_subdev *sd) u8 avi_len; u8 avi_ver; - if (!(hdmi_read(sd, 0x05) & 0x80)) { + if (!is_hdmi(sd)) { v4l2_info(sd, "receive DVI-D signal (AVI infoframe not supported)\n"); return; } @@ -1698,6 +1712,12 @@ static int adv7604_log_status(struct v4l2_subdev *sd) "RGB limited range (16-235)", "RGB full range (0-255)", }; + char *deep_color_mode_txt[4] = { + "8-bits per channel", + "10-bits per channel", + "12-bits per channel", + "16-bits per channel (not supported)" + }; v4l2_info(sd, "-----Chip status-----\n"); v4l2_info(sd, "Chip power: %s\n", no_power(sd) ? "off" : "on"); @@ -1756,7 +1776,9 @@ static int adv7604_log_status(struct v4l2_subdev *sd) v4l2_info(sd, "-----HDMI status-----\n"); v4l2_info(sd, "HDCP encrypted content: %s\n", hdmi_read(sd, 0x05) & 0x40 ? "true" : "false"); - + if (is_hdmi(sd)) + v4l2_info(sd, "deep color mode: %s\n", + deep_color_mode_txt[(hdmi_read(sd, 0x0b) >> 5) & 0x3]); print_avi_infoframe(sd); } |