Hi Kieran,
Thanks for your patch,
On 2018-02-07 17:34:46 +0000, Kieran Bingham wrote:
> From: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
>
> The ADV748x has 12 pages mapped onto I2C addresses.
>
> In the existing implementation only 11 are mapped correctly in the page
> enumerations, which causes an off-by-one fault on pages above the
> infoframe definition due to a missing 'CBUS' page.
>
> This causes the address for the CEC, SDP, TXA, and TXB to be incorrectly
> programmed during the iterations in adv748x_initialise_clients().
>
> Until now this has gone un-noticed due to the fact that following the
> creation of the clients - the device is reset and the addresses are
> reprogrammed in manually by the call to "adv748x_write_regs(state,
> adv748x_set_slave_address);"
>
> As part of moving to dynamic i2c address allocations repair this by
> providing the missing CBUS page definition.
>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
I would drop the '.' from the subject line, with that fixed:
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> ---
> drivers/media/i2c/adv748x/adv748x-core.c | 3 +++
> drivers/media/i2c/adv748x/adv748x.h | 2 ++
> 2 files changed, 5 insertions(+)
>
> diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c
> index 71c69b816db2..6d62b817ed00 100644
> --- a/drivers/media/i2c/adv748x/adv748x-core.c
> +++ b/drivers/media/i2c/adv748x/adv748x-core.c
> @@ -52,6 +52,7 @@ static const struct regmap_config adv748x_regmap_cnf[] = {
> ADV748X_REGMAP_CONF("edid"),
> ADV748X_REGMAP_CONF("repeater"),
> ADV748X_REGMAP_CONF("infoframe"),
> + ADV748X_REGMAP_CONF("cbus"),
> ADV748X_REGMAP_CONF("cec"),
> ADV748X_REGMAP_CONF("sdp"),
> ADV748X_REGMAP_CONF("txa"),
> @@ -91,6 +92,7 @@ static int adv748x_i2c_addresses[ADV748X_PAGE_MAX] = {
> ADV748X_I2C_EDID,
> ADV748X_I2C_REPEATER,
> ADV748X_I2C_INFOFRAME,
> + ADV748X_I2C_CBUS,
> ADV748X_I2C_CEC,
> ADV748X_I2C_SDP,
> ADV748X_I2C_TXB,
> @@ -354,6 +356,7 @@ static const struct adv748x_reg_value adv748x_set_slave_address[] = {
> {ADV748X_PAGE_IO, 0xf6, ADV748X_I2C_EDID << 1},
> {ADV748X_PAGE_IO, 0xf7, ADV748X_I2C_REPEATER << 1},
> {ADV748X_PAGE_IO, 0xf8, ADV748X_I2C_INFOFRAME << 1},
> + {ADV748X_PAGE_IO, 0xf9, ADV748X_I2C_CBUS << 1},
> {ADV748X_PAGE_IO, 0xfa, ADV748X_I2C_CEC << 1},
> {ADV748X_PAGE_IO, 0xfb, ADV748X_I2C_SDP << 1},
> {ADV748X_PAGE_IO, 0xfc, ADV748X_I2C_TXB << 1},
> diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h
> index 6789e2f3bc8c..725662edc4b8 100644
> --- a/drivers/media/i2c/adv748x/adv748x.h
> +++ b/drivers/media/i2c/adv748x/adv748x.h
> @@ -35,6 +35,7 @@
> #define ADV748X_I2C_EDID 0x36 /* EDID Map */
> #define ADV748X_I2C_REPEATER 0x32 /* HDMI RX Repeater Map */
> #define ADV748X_I2C_INFOFRAME 0x31 /* HDMI RX InfoFrame Map */
> +#define ADV748X_I2C_CBUS 0x30 /* CBUS MHL Map */
> #define ADV748X_I2C_CEC 0x41 /* CEC Map */
> #define ADV748X_I2C_SDP 0x79 /* SDP Map */
> #define ADV748X_I2C_TXB 0x48 /* CSI-TXB Map */
> @@ -48,6 +49,7 @@ enum adv748x_page {
> ADV748X_PAGE_EDID,
> ADV748X_PAGE_REPEATER,
> ADV748X_PAGE_INFOFRAME,
> + ADV748X_PAGE_CBUS,
> ADV748X_PAGE_CEC,
> ADV748X_PAGE_SDP,
> ADV748X_PAGE_TXB,
> --
> 2.7.4
>
--
Regards,
Niklas Söderlund
