From: Martin Bugge <marbu...@cisco.com>
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 <marbu...@cisco.com>
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/i2c/adv7604.c | 28 +++++++++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d093092..6ffe25a 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);
}
--
1.8.3.2
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