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[media] adv7604: Enable HDMI_MODE interrupt 

Some sources are initially detected as DVI, and change to HDMI later.
This must be detected to set the right RGB quantization range.

Signed-off-by: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mats Randgaard 2013-12-10 10:15:13 -03:00 committed by Mauro Carvalho Chehab
parent 5c6c634916
commit f24d229c1e
1 changed files with 25 additions and 9 deletions
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34
drivers/media/i2c/adv7604.c
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@ -1602,18 +1602,25 @@ static int adv7604_g_mbus_fmt(struct v4l2_subdev *sd,
static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
{
u8 fmt_change, fmt_change_digital, tx_5v;
const u8 irq_reg_0x43 = io_read(sd, 0x43);
const u8 irq_reg_0x6b = io_read(sd, 0x6b);
const u8 irq_reg_0x70 = io_read(sd, 0x70);
u8 fmt_change_digital;
u8 fmt_change;
u8 tx_5v;
if (irq_reg_0x43)
io_write(sd, 0x44, irq_reg_0x43);
if (irq_reg_0x70)
io_write(sd, 0x71, irq_reg_0x70);
if (irq_reg_0x6b)
io_write(sd, 0x6c, irq_reg_0x6b);
v4l2_dbg(2, debug, sd, "%s: ", __func__);
/* format change */
fmt_change = io_read(sd, 0x43) & 0x98;
if (fmt_change)
io_write(sd, 0x44, fmt_change);
fmt_change_digital = is_digital_input(sd) ? (io_read(sd, 0x6b) & 0xc0) : 0;
if (fmt_change_digital)
io_write(sd, 0x6c, fmt_change_digital);
fmt_change = irq_reg_0x43 & 0x98;
fmt_change_digital = is_digital_input(sd) ? (irq_reg_0x6b & 0xc0) : 0;
if (fmt_change || fmt_change_digital) {
v4l2_dbg(1, debug, sd,
@ -1625,6 +1632,15 @@ static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
if (handled)
*handled = true;
}
/* HDMI/DVI mode */
if (irq_reg_0x6b & 0x01) {
v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__,
(io_read(sd, 0x6a) & 0x01) ? "HDMI" : "DVI");
set_rgb_quantization_range(sd);
if (handled)
*handled = true;
}
/* tx 5v detect */
tx_5v = io_read(sd, 0x70) & 0x1e;
if (tx_5v) {
@ -2138,7 +2154,7 @@ static int adv7604_core_init(struct v4l2_subdev *sd)
io_write(sd, 0x40, 0xc2); /* Configure INT1 */
io_write(sd, 0x41, 0xd7); /* STDI irq for any change, disable INT2 */
io_write(sd, 0x46, 0x98); /* Enable SSPD, STDI and CP unlocked interrupts */
io_write(sd, 0x6e, 0xc0); /* Enable V_LOCKED and DE_REGEN_LCK interrupts */
io_write(sd, 0x6e, 0xc1); /* Enable V_LOCKED, DE_REGEN_LCK, HDMI_MODE interrupts */
io_write(sd, 0x73, 0x1e); /* Enable CABLE_DET_A_ST (+5v) interrupts */
return v4l2_ctrl_handler_setup(sd->ctrl_handler);