diff options
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/max9286.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c index fd2151f2fa36..ebe9c2215b48 100644 --- a/drivers/media/i2c/max9286.c +++ b/drivers/media/i2c/max9286.c @@ -336,6 +336,22 @@ static void max9286_configure_i2c(struct max9286_priv *priv, bool localack) usleep_range(3000, 5000); } +static void max9286_reverse_channel_setup(struct max9286_priv *priv) +{ + /* + * Reverse channel setup. + * + * - Enable custom reverse channel configuration (through register 0x3f) + * and set the first pulse length to 35 clock cycles. + * - Increase the reverse channel amplitude to 170mV to accommodate the + * high threshold enabled by the serializer driver. + */ + max9286_write(priv, 0x3f, MAX9286_EN_REV_CFG | MAX9286_REV_FLEN(35)); + max9286_write(priv, 0x3b, MAX9286_REV_TRF(1) | MAX9286_REV_AMP(70) | + MAX9286_REV_AMP_X); + usleep_range(2000, 2500); +} + /* * max9286_check_video_links() - Make sure video links are detected and locked * @@ -941,19 +957,7 @@ static int max9286_setup(struct max9286_priv *priv) * only. This should be disabled after the mux is initialised. */ max9286_configure_i2c(priv, true); - - /* - * Reverse channel setup. - * - * - Enable custom reverse channel configuration (through register 0x3f) - * and set the first pulse length to 35 clock cycles. - * - Increase the reverse channel amplitude to 170mV to accommodate the - * high threshold enabled by the serializer driver. - */ - max9286_write(priv, 0x3f, MAX9286_EN_REV_CFG | MAX9286_REV_FLEN(35)); - max9286_write(priv, 0x3b, MAX9286_REV_TRF(1) | MAX9286_REV_AMP(70) | - MAX9286_REV_AMP_X); - usleep_range(2000, 2500); + max9286_reverse_channel_setup(priv); /* * Enable GMSL links, mask unused ones and autodetect link |