diff options
| author | Scott Collyer <scollyer@google.com> | 2021-11-19 10:38:01 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-11-23 22:33:36 +0000 |
| commit | c956e39119aeaea16584c00e95949675fe6620e0 (patch) | |
| tree | b5e41cfedba9ee0b25ba73480cce2c9db5ade069 | |
| parent | 880291e559f418194324c16ab6f6a1951d4b542b (diff) | |
| download | chrome-ec-c956e39119aeaea16584c00e95949675fe6620e0.tar.gz | |
servo_v4p1: Add DP Rx EQ .board_set method for TUSB1064
This CL adds a .board_set method for the TUSB1064 usb_mux config to
control the display port rx EQ gain. Previously, this gain was being
applied in the driver init() function. The driver has been modified to
remove this default gain setting. So now the gain must be selected by
the boards that use the TUSB1064.
BUG=b:206059703
BRANCH=none
TEST=make -j BOARD=servo_v4p1
Signed-off-by: Scott Collyer <scollyer@google.com>
Change-Id: I5e2ce514d11b65b23afb7e59805c4184cffa8e24
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3291131
Commit-Queue: Scott Collyer <scollyer@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
| -rw-r--r-- | board/servo_v4p1/board.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/board/servo_v4p1/board.c b/board/servo_v4p1/board.c index d9d48a42ce..385d46ef55 100644 --- a/board/servo_v4p1/board.c +++ b/board/servo_v4p1/board.c @@ -65,6 +65,26 @@ static void tca_evt(enum gpio_signal signal) irq_ioexpanders(); } +/* + * TUSB1064 set mux board tuning. + * Adds in board specific gain and DP lane count configuration + */ +static int board_tusb1064_dp_rx_eq_set(const struct usb_mux *me, + mux_state_t mux_state) +{ + int rv = EC_SUCCESS; + + /* + * Apply 10dB gain. Note, this value is selected to match the gain that + * would be set by default if the 2 GPIO gain set pins are left + * floating. + */ + if (mux_state & USB_PD_MUX_DP_ENABLED) + rv = tusb1064_set_dp_rx_eq(me, TUSB1064_DP_EQ_RX_10_0_DB); + + return rv; +} + const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { [CHG] = { /* CHG port connected directly to USB 3.0 hub, no mux */ }, [DUT] = { /* DUT port with UFP mux */ @@ -72,6 +92,7 @@ const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { .i2c_port = I2C_PORT_MASTER, .i2c_addr_flags = TUSB1064_I2C_ADDR10_FLAGS, .driver = &tusb1064_usb_mux_driver, + .board_set = &board_tusb1064_dp_rx_eq_set, } }; |