diff options
| author | Daisuke Nojiri <dnojiri@chromium.org> | 2019-01-11 09:50:54 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-01-25 21:01:18 -0800 |
| commit | 6cb4a8b32a862eb715e84d80c9a293be6b2c624b (patch) | |
| tree | e2e7a534ca063b8be312af29f6a0128eabcc8f9a /board/nami/board.c | |
| parent | 03500453df38e1c7c56ec8451b85401256a509dd (diff) | |
| download | chrome-ec-6cb4a8b32a862eb715e84d80c9a293be6b2c624b.tar.gz | |
Nami: Set DP EQ level compensation up to 3.6dB for Sona
This patch sets DP EQ level compensation up to 3.6dB to avoid flicker
or no picture for Sona and Sona-G7.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
BUG=b/122707483
BRANCH=nami
TEST=buildall
Change-Id: Ib7d64d1bcde9b5e0996e9be9fb68548b0d0df9c6
Reviewed-on: https://chromium-review.googlesource.com/1407149
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Diffstat (limited to 'board/nami/board.c')
| -rw-r--r-- | board/nami/board.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/board/nami/board.c b/board/nami/board.c index d1436bf186..497d915f43 100644 --- a/board/nami/board.c +++ b/board/nami/board.c @@ -257,12 +257,19 @@ const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = { }, }; +static int ps8751_tune_mux(int port) +{ + /* 0x98 sets lower EQ of DP port (3.6db) */ + mux_write(port, PS8XXX_REG_MUX_DP_EQ_CONFIGURATION, 0x98); + return EC_SUCCESS; +} + struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = { - { + [USB_PD_PORT_PS8751] = { .driver = &tcpci_tcpm_usb_mux_driver, .hpd_update = &ps8xxx_tcpc_update_hpd_status, }, - { + [USB_PD_PORT_ANX7447] = { .driver = &anx7447_usb_mux_driver, .hpd_update = &anx7447_tcpc_update_hpd_status, } @@ -312,6 +319,9 @@ void board_tcpc_init(void) gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL); + if (oem == PROJECT_SONA && model != MODEL_SYNDRA) + usb_muxes[USB_PD_PORT_PS8751].board_init = ps8751_tune_mux; + /* * Initialize HPD to low; after sysjump SOC needs to see * HPD pulse to enable video path |