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media: i2c: lt6911uxe: fix read timing registers and add int type

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Signed-off-by: Jianwei Fan <jianwei.fan@rock-chips.com>
Change-Id: I12e10af455b311c256b3a00de25fdcb081a11e18
This commit is contained in:
Jianwei Fan
2025-09-09 11:28:13 +08:00
committed by Tao Huang
parent cce37a2240
commit 5057576404
1 changed files with 69 additions and 29 deletions
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98
drivers/media/i2c/lt6911uxe.c
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@@ -41,6 +41,7 @@
#include <media/v4l2-dv-timings.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <linux/rk_hdmirx_config.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x06)
@@ -74,38 +75,43 @@ MODULE_PARM_DESC(debug, "debug level (0-3)");
#define I2C_ENABLE 0x1
#define I2C_DISABLE 0x0
#define HTOTAL_H 0xe088
#define HTOTAL_L 0xe089
#define HACT_H 0xe08c
#define HACT_L 0xe08d
#define VTOTAL_H 0xe08a
#define VTOTAL_L 0xe08b
#define VACT_H 0xe08e
#define VACT_L 0xe08f
#define HS_HALF 0xe080
#define HFP_HALF_H 0xe081
#define HFP_HALF_L 0xe082
#define VS 0xe083
#define VFP_H 0xe097
#define VFP_L 0xe098
#define INT_TYPE 0xe084
#define PCLK_H 0xe085
#define PCLK_M 0xe086
#define PCLK_L 0xe087
#define HTOTAL_H 0xe088
#define HTOTAL_L 0xe089
#define VTOTAL_H 0xe08a
#define VTOTAL_L 0xe08b
#define HACT_H 0xe08c
#define HACT_L 0xe08d
#define VACT_H 0xe08e
#define VACT_L 0xe08f
#define AUDIO_FS_VALUE_H 0xe090
#define AUDIO_FS_VALUE_L 0xe091
#define BYTE_PCLK_H 0xe092
#define BYTE_PCLK_M 0xe093
#define BYTE_PCLK_L 0xe094
#define AUDIO_FS_VALUE_H 0xe090
#define AUDIO_FS_VALUE_L 0xe091
#define LNAE_NUM 0xe095
#define BUS_FMT 0xe096
#define HS_HALF_H 0xe098
#define HS_HALF_L 0xe099
#define HFP_HALF_H 0xe09a
#define HFP_HALF_L 0xe09b
#define HBP_HALF_H 0xe09c
#define HBP_HALF_L 0xe09d
#define VS_H 0xe09e
#define VS_L 0xe09f
#define VFP_H 0xe0a1
#define VFP_L 0xe0a2
#define VBP_H 0xe0a3
#define VBP_L 0xe0a4
#define HS_POLARITY 0xe0a5
#define VS_POLARITY 0xe0a6
#define STREAM_CTL 0xe0b0
#define ENABLE_STREAM 0x01
#define DISABLE_STREAM 0x00
@@ -856,20 +862,29 @@ static int lt6911uxe_get_detected_timings(struct v4l2_subdev *sd,
val_l = i2c_rd8(sd, VACT_L);
vact = (val_h << 8) | val_l;
hs = i2c_rd8(sd, HS_HALF) * 2;
val_h = i2c_rd8(sd, HS_HALF_H);
val_l = i2c_rd8(sd, HS_HALF_L);
hs = ((val_h << 8) | val_l) * 2;
val_h = i2c_rd8(sd, HFP_HALF_H);
val_l = i2c_rd8(sd, HFP_HALF_L);
hfp = ((val_h << 8) | val_l) * 2;
hbp = htotal - hact - hs - hfp;
val_h = i2c_rd8(sd, HBP_HALF_H);
val_l = i2c_rd8(sd, HBP_HALF_L);
hbp = ((val_h << 8) | val_l) * 2;
val_h = i2c_rd8(sd, VS_H);
val_l = i2c_rd8(sd, VS_L);
vs = ((val_h << 8) | val_l);
vs = i2c_rd8(sd, VS);
val_h = i2c_rd8(sd, VFP_H);
val_l = i2c_rd8(sd, VFP_L);
vfp = (val_h << 8) | val_l;
vfp = ((val_h << 8) | val_l);
vbp = vtotal - vact - vs - vfp;
val_h = i2c_rd8(sd, VBP_H);
val_l = i2c_rd8(sd, VBP_L);
vbp = ((val_h << 8) | val_l);
lt6911uxe->bus_fmt = i2c_rd8(sd, BUS_FMT);
if (lt6911uxe->bus_fmt == YUV420_8Bit) {
@@ -947,8 +962,25 @@ static void lt6911uxe_delayed_work_res_change(struct work_struct *work)
struct lt6911uxe *lt6911uxe = container_of(dwork,
struct lt6911uxe, delayed_work_res_change);
struct v4l2_subdev *sd = &lt6911uxe->sd;
const struct v4l2_event evt_signal_lost = {
.type = RK_HDMIRX_V4L2_EVENT_SIGNAL_LOST,
};
u32 int_type;
lt6911uxe_format_change(sd);
int_type = i2c_rd8(sd, INT_TYPE);
v4l2_dbg(1, debug, sd, "%s: int type: 0x%x\n", __func__, int_type);
switch (int_type) {
case 0:
lt6911uxe->nosignal = true;
v4l2_event_queue(sd->devnode, &evt_signal_lost);
break;
case 1:
lt6911uxe_format_change(sd);
break;
default:
v4l2_dbg(1, debug, sd, "%s: unsupported handle int type\n", __func__);
break;
}
}
static int lt6911uxe_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd)
@@ -1051,10 +1083,16 @@ static irqreturn_t lt6911uxe_res_change_irq_handler(int irq, void *dev_id)
static irqreturn_t plugin_detect_irq_handler(int irq, void *dev_id)
{
struct lt6911uxe *lt6911uxe = dev_id;
struct v4l2_subdev *sd = &lt6911uxe->sd;
const struct v4l2_event evt_signal_lost = {
.type = RK_HDMIRX_V4L2_EVENT_SIGNAL_LOST,
};
/* control hpd output level after 25ms */
schedule_delayed_work(&lt6911uxe->delayed_work_hotplug,
HZ / 40);
if (!tx_5v_power_present(sd))
v4l2_event_queue(sd->devnode, &evt_signal_lost);
return IRQ_HANDLED;
}
@@ -1084,6 +1122,8 @@ static int lt6911uxe_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
case V4L2_EVENT_CTRL:
return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
case RK_HDMIRX_V4L2_EVENT_SIGNAL_LOST:
return v4l2_event_subscribe(fh, sub, 0, NULL);
default:
return -EINVAL;
}