On 07/23/2015 02:21 PM, William Towle wrote:
> Using adv7611_read_cable_det() for ADV7612 means that full
> support for '.max_port = ADV7604_PAD_HDMI_PORT_B,' isn't available
> due to the need for multiple port reads to determine cable detection,
> and an agreed mechanism for communicating the separate statuses.
>
> This patch replaces adv7611_read_cable_det() with a functionally
> identical copy, commented appropriately.
>
> Earlier submissions [leading to commit 8331d30b] also set .cp_csc,
> which is used in a cp_read() call within adv76xx_log_status().
>
> Signed-off-by: William Towle <william.to...@codethink.co.uk>
Acked-by: Hans Verkuil <hans.verk...@cisco.com>
Regards,
Hans
> ---
> drivers/media/i2c/adv7604.c | 17 ++++++++++++++---
> 1 file changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
> index 0587d27..2524184 100644
> --- a/drivers/media/i2c/adv7604.c
> +++ b/drivers/media/i2c/adv7604.c
> @@ -877,6 +877,16 @@ static unsigned int adv7611_read_cable_det(struct
> v4l2_subdev *sd)
> return value & 1;
> }
>
> +static unsigned int adv7612_read_cable_det(struct v4l2_subdev *sd)
> +{
> + /* Reads CABLE_DET_A_RAW. For input B support, need to
> + * account for bit 7 [MSB] of 0x6a (ie. CABLE_DET_B_RAW)
> + */
> + u8 value = io_read(sd, 0x6f);
> +
> + return value & 1;
> +}
> +
> static int adv76xx_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
> {
> struct adv76xx_state *state = to_state(sd);
> @@ -2728,20 +2738,21 @@ static const struct adv76xx_chip_info
> adv76xx_chip_info[] = {
> [ADV7612] = {
> .type = ADV7612,
> .has_afe = false,
> - .max_port = ADV7604_PAD_HDMI_PORT_B,
> - .num_dv_ports = 2,
> + .max_port = ADV76XX_PAD_HDMI_PORT_A, /* B not supported */
> + .num_dv_ports = 1, /* normally 2 */
> .edid_enable_reg = 0x74,
> .edid_status_reg = 0x76,
> .lcf_reg = 0xa3,
> .tdms_lock_mask = 0x43,
> .cable_det_mask = 0x01,
> .fmt_change_digital_mask = 0x03,
> + .cp_csc = 0xf4,
> .formats = adv7612_formats,
> .nformats = ARRAY_SIZE(adv7612_formats),
> .set_termination = adv7611_set_termination,
> .setup_irqs = adv7612_setup_irqs,
> .read_hdmi_pixelclock = adv7611_read_hdmi_pixelclock,
> - .read_cable_det = adv7611_read_cable_det,
> + .read_cable_det = adv7612_read_cable_det,
> .recommended_settings = {
> [1] = adv7612_recommended_settings_hdmi,
> },
>
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