diff options
Diffstat (limited to 'drivers/media/i2c/adv7604.c')
-rw-r--r-- | drivers/media/i2c/adv7604.c | 118 |
1 files changed, 86 insertions, 32 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 09004d928d11..3049aa2fd0f0 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -73,6 +73,8 @@ MODULE_LICENSE("GPL"); #define ADV76XX_MAX_ADDRS (3) +#define ADV76XX_MAX_EDID_BLOCKS 4 + enum adv76xx_type { ADV7604, ADV7611, @@ -108,6 +110,11 @@ struct adv76xx_chip_info { unsigned int edid_enable_reg; unsigned int edid_status_reg; + unsigned int edid_segment_reg; + unsigned int edid_segment_mask; + unsigned int edid_spa_loc_reg; + unsigned int edid_spa_loc_msb_mask; + unsigned int edid_spa_port_b_reg; unsigned int lcf_reg; unsigned int cable_det_mask; @@ -176,7 +183,7 @@ struct adv76xx_state { const struct adv76xx_format_info *format; struct { - u8 edid[256]; + u8 edid[ADV76XX_MAX_EDID_BLOCKS * 128]; u32 present; unsigned blocks; } edid; @@ -512,10 +519,17 @@ static inline int edid_write_block(struct v4l2_subdev *sd, static void adv76xx_set_hpd(struct adv76xx_state *state, unsigned int hpd) { + const struct adv76xx_chip_info *info = state->info; unsigned int i; - for (i = 0; i < state->info->num_dv_ports; ++i) - gpiod_set_value_cansleep(state->hpd_gpio[i], hpd & BIT(i)); + if (info->type == ADV7604) { + for (i = 0; i < state->info->num_dv_ports; ++i) + gpiod_set_value_cansleep(state->hpd_gpio[i], hpd & BIT(i)); + } else { + for (i = 0; i < state->info->num_dv_ports; ++i) + io_write_clr_set(&state->sd, 0x20, 0x80 >> i, + (!!(hpd & BIT(i))) << (7 - i)); + } v4l2_subdev_notify(&state->sd, ADV76XX_HOTPLUG, &hpd); } @@ -2298,7 +2312,7 @@ static int adv76xx_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) struct adv76xx_state *state = to_state(sd); const struct adv76xx_chip_info *info = state->info; unsigned int spa_loc; - u16 pa; + u16 pa, parent_pa; int err; int i; @@ -2327,15 +2341,25 @@ static int adv76xx_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) __func__, edid->pad, state->edid.present); return 0; } - if (edid->blocks > 2) { - edid->blocks = 2; + if (edid->blocks > ADV76XX_MAX_EDID_BLOCKS) { + edid->blocks = ADV76XX_MAX_EDID_BLOCKS; return -E2BIG; } + pa = v4l2_get_edid_phys_addr(edid->edid, edid->blocks * 128, &spa_loc); - err = v4l2_phys_addr_validate(pa, &pa, NULL); + err = v4l2_phys_addr_validate(pa, &parent_pa, NULL); if (err) return err; + if (!spa_loc) { + /* + * There is no SPA, so just set spa_loc to 128 and pa to whatever + * data is there. + */ + spa_loc = 128; + pa = (edid->edid[spa_loc] << 8) | edid->edid[spa_loc + 1]; + } + v4l2_dbg(2, debug, sd, "%s: write EDID pad %d, edid.present = 0x%x\n", __func__, edid->pad, state->edid.present); @@ -2344,41 +2368,33 @@ static int adv76xx_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) adv76xx_set_hpd(state, 0); rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, 0x00); - /* - * Return an error if no location of the source physical address - * was found. - */ - if (spa_loc == 0) - return -EINVAL; - switch (edid->pad) { case ADV76XX_PAD_HDMI_PORT_A: - state->spa_port_a[0] = edid->edid[spa_loc]; - state->spa_port_a[1] = edid->edid[spa_loc + 1]; + state->spa_port_a[0] = pa >> 8; + state->spa_port_a[1] = pa & 0xff; break; case ADV7604_PAD_HDMI_PORT_B: - rep_write(sd, 0x70, edid->edid[spa_loc]); - rep_write(sd, 0x71, edid->edid[spa_loc + 1]); + rep_write(sd, info->edid_spa_port_b_reg, pa >> 8); + rep_write(sd, info->edid_spa_port_b_reg + 1, pa & 0xff); break; case ADV7604_PAD_HDMI_PORT_C: - rep_write(sd, 0x72, edid->edid[spa_loc]); - rep_write(sd, 0x73, edid->edid[spa_loc + 1]); + rep_write(sd, info->edid_spa_port_b_reg + 2, pa >> 8); + rep_write(sd, info->edid_spa_port_b_reg + 3, pa & 0xff); break; case ADV7604_PAD_HDMI_PORT_D: - rep_write(sd, 0x74, edid->edid[spa_loc]); - rep_write(sd, 0x75, edid->edid[spa_loc + 1]); + rep_write(sd, info->edid_spa_port_b_reg + 4, pa >> 8); + rep_write(sd, info->edid_spa_port_b_reg + 5, pa & 0xff); break; default: return -EINVAL; } - if (info->type == ADV7604) { - rep_write(sd, 0x76, spa_loc & 0xff); - rep_write_clr_set(sd, 0x77, 0x40, (spa_loc & 0x100) >> 2); - } else { - /* ADV7612 Software Manual Rev. A, p. 15 */ - rep_write(sd, 0x70, spa_loc & 0xff); - rep_write_clr_set(sd, 0x71, 0x01, (spa_loc & 0x100) >> 8); + if (info->edid_spa_loc_reg) { + u8 mask = info->edid_spa_loc_msb_mask; + + rep_write(sd, info->edid_spa_loc_reg, spa_loc & 0xff); + rep_write_clr_set(sd, info->edid_spa_loc_reg + 1, + mask, (spa_loc & 0x100) ? mask : 0); } edid->edid[spa_loc] = state->spa_port_a[0]; @@ -2390,11 +2406,25 @@ static int adv76xx_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) edid->edid[0x16]); state->edid.present |= 1 << edid->pad; - err = edid_write_block(sd, 128 * edid->blocks, state->edid.edid); + rep_write_clr_set(sd, info->edid_segment_reg, + info->edid_segment_mask, 0); + err = edid_write_block(sd, 128 * min(edid->blocks, 2U), state->edid.edid); if (err < 0) { v4l2_err(sd, "error %d writing edid pad %d\n", err, edid->pad); return err; } + if (edid->blocks > 2) { + rep_write_clr_set(sd, info->edid_segment_reg, + info->edid_segment_mask, + info->edid_segment_mask); + err = edid_write_block(sd, 128 * (edid->blocks - 2), + state->edid.edid + 256); + if (err < 0) { + v4l2_err(sd, "error %d writing edid pad %d\n", + err, edid->pad); + return err; + } + } /* adv76xx calculates the checksums and enables I2C access to internal EDID RAM from DDC port. */ @@ -2409,7 +2439,7 @@ static int adv76xx_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) v4l2_err(sd, "error enabling edid (0x%x)\n", state->edid.present); return -EIO; } - cec_s_phys_addr(state->cec_adap, pa, false); + cec_s_phys_addr(state->cec_adap, parent_pa, false); /* enable hotplug after 100 ms */ schedule_delayed_work(&state->delayed_work_enable_hotplug, HZ / 10); @@ -2803,6 +2833,18 @@ static int adv76xx_core_init(struct v4l2_subdev *sd) io_write(sd, 0x0b, 0x44); /* Power down ESDP block */ cp_write(sd, 0xcf, 0x01); /* Power down macrovision */ + /* HPD */ + if (info->type != ADV7604) { + /* Set manual HPD values to 0 */ + io_write_clr_set(sd, 0x20, 0xc0, 0); + /* + * Set HPA_DELAY to 200 ms and set automatic HPD control + * to: internal EDID is active AND a cable is detected + * AND the manual HPD control is set to 1. + */ + hdmi_write_clr_set(sd, 0x6c, 0xf6, 0x26); + } + /* video format */ io_write_clr_set(sd, 0x02, 0x0f, pdata->alt_gamma << 3); io_write_clr_set(sd, 0x05, 0x0e, pdata->blank_data << 3 | @@ -2987,6 +3029,11 @@ static const struct adv76xx_chip_info adv76xx_chip_info[] = { .num_dv_ports = 4, .edid_enable_reg = 0x77, .edid_status_reg = 0x7d, + .edid_segment_reg = 0x77, + .edid_segment_mask = 0x10, + .edid_spa_loc_reg = 0x76, + .edid_spa_loc_msb_mask = 0x40, + .edid_spa_port_b_reg = 0x70, .lcf_reg = 0xb3, .tdms_lock_mask = 0xe0, .cable_det_mask = 0x1e, @@ -3037,6 +3084,8 @@ static const struct adv76xx_chip_info adv76xx_chip_info[] = { .num_dv_ports = 1, .edid_enable_reg = 0x74, .edid_status_reg = 0x76, + .edid_segment_reg = 0x7a, + .edid_segment_mask = 0x01, .lcf_reg = 0xa3, .tdms_lock_mask = 0x43, .cable_det_mask = 0x01, @@ -3081,6 +3130,11 @@ static const struct adv76xx_chip_info adv76xx_chip_info[] = { .num_dv_ports = 1, /* normally 2 */ .edid_enable_reg = 0x74, .edid_status_reg = 0x76, + .edid_segment_reg = 0x7a, + .edid_segment_mask = 0x01, + .edid_spa_loc_reg = 0x70, + .edid_spa_loc_msb_mask = 0x01, + .edid_spa_port_b_reg = 0x52, .lcf_reg = 0xa3, .tdms_lock_mask = 0x43, .cable_det_mask = 0x01, @@ -3616,7 +3670,7 @@ static int adv76xx_remove(struct i2c_client *client) io_write(sd, 0x6e, 0); io_write(sd, 0x73, 0); - cancel_delayed_work(&state->delayed_work_enable_hotplug); + cancel_delayed_work_sync(&state->delayed_work_enable_hotplug); v4l2_async_unregister_subdev(sd); media_entity_cleanup(&sd->entity); adv76xx_unregister_clients(to_state(sd)); |