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| author | Scott Collyer <scollyer@google.com> | 2021-02-08 21:14:37 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-04-02 18:52:00 +0000 |
| commit | 1c19d95208187998bab51c797f45f688f4bfff1d (patch) | |
| tree | 029a5420b8c9c2a54bd8484c66f6445793aed2cd | |
| parent | ac04e07d387782fc91a8758890570c13adfb7d81 (diff) | |
| download | chrome-ec-1c19d95208187998bab51c797f45f688f4bfff1d.tar.gz | |
quiche: Add board_set method for ps8822 mux for rx dp eq
This CL adds a method to change Rx DP gain from 12 to 20 dB. This
value was requested by the MST vendor.
BUG=b:178656398
BRANCH=None
TEST=verifed register setting when DP mode is active on quiche
Signed-off-by: Scott Collyer <scollyer@google.com>
Change-Id: I6355da1ad88c3e1f29f07ca036adbf8fc9b908ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2686919
Commit-Queue: Scott Collyer <scollyer@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
| -rw-r--r-- | board/quiche/board.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/board/quiche/board.c b/board/quiche/board.c index 0abb6d76c2..05fc76d132 100644 --- a/board/quiche/board.c +++ b/board/quiche/board.c @@ -157,6 +157,22 @@ struct ppc_config_t ppc_chips[] = { #endif #ifdef SECTION_IS_RW +/* + * PS8802 set mux board tuning. + * Adds in board specific gain and DP lane count configuration + */ +static int board_ps8822_mux_set(const struct usb_mux *me, + mux_state_t mux_state) +{ + int rv = EC_SUCCESS; + + /* DP specific config */ + if (mux_state & USB_PD_MUX_DP_ENABLED) + rv = ps8822_set_dp_rx_eq(me, PS8822_DPEQ_LEVEL_UP_20DB); + + return rv; +} + /* TCPCs */ const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { [USB_PD_PORT_HOST] = { @@ -179,6 +195,7 @@ const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { .i2c_port = I2C_PORT_I2C1, .i2c_addr_flags = PS8822_I2C_ADDR3_FLAG, .driver = &ps8822_usb_mux_driver, + .board_set = &board_ps8822_mux_set, }, [USB_PD_PORT_DP] = { .usb_port = USB_PD_PORT_DP, |