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| author | YongBeum.Ha <ybha@samsung.corp-partner.google.com> | 2021-02-10 13:35:28 +0900 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-17 19:12:20 +0000 |
| commit | fed6560e029af9bfe6592d6a6f95baf67b9bcefe (patch) | |
| tree | 19638a984000cccc207c39d7fc6d295c426c5f43 /driver/retimer | |
| parent | a34dcdf2dfccaee1f90da6b78d5d2529d0d2e93a (diff) | |
| download | chrome-ec-fed6560e029af9bfe6592d6a6f95baf67b9bcefe.tar.gz | |
nb7v904m : Add function to control Loss Profile Matching
add function to control Loss Profile Matching
BUG=b:176862264
BRANCH=None
TEST=make -j BOARD=sasuke
Signed-off-by: YongBeum.Ha <ybha@samsung.corp-partner.google.com>
Change-Id: I5b4d0ff444c07c477add101fac05d33694a33982
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2684080
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'driver/retimer')
| -rw-r--r-- | driver/retimer/nb7v904m.c | 21 | ||||
| -rw-r--r-- | driver/retimer/nb7v904m.h | 18 |
2 files changed, 39 insertions, 0 deletions
diff --git a/driver/retimer/nb7v904m.c b/driver/retimer/nb7v904m.c index e43eb72a7f..18c7809e71 100644 --- a/driver/retimer/nb7v904m.c +++ b/driver/retimer/nb7v904m.c @@ -108,6 +108,27 @@ int nb7v904m_tune_usb_flat_gain(const struct usb_mux *me, uint8_t gain_a, return rv; } +/* Set Loss Profile Matching : This must be called on board_init context */ +int nb7v904m_set_loss_profile_match(const struct usb_mux *me, uint8_t loss_a, + uint8_t loss_b, uint8_t loss_c, uint8_t loss_d) +{ + int rv = EC_SUCCESS; + + if (loss_a != NB7V904M_CH_ALL_SKIP_LOSS) + rv |= nb7v904m_write(me, NB7V904M_REG_CH_A_LOSS_CTRL, loss_a); + + if (loss_b != NB7V904M_CH_ALL_SKIP_LOSS) + rv |= nb7v904m_write(me, NB7V904M_REG_CH_B_LOSS_CTRL, loss_b); + + if (loss_c != NB7V904M_CH_ALL_SKIP_LOSS) + rv |= nb7v904m_write(me, NB7V904M_REG_CH_C_LOSS_CTRL, loss_c); + + if (loss_d != NB7V904M_CH_ALL_SKIP_LOSS) + rv |= nb7v904m_write(me, NB7V904M_REG_CH_D_LOSS_CTRL, loss_d); + + return rv; +} + /* Set AUX control switch */ int nb7v904m_set_aux_ch_switch(const struct usb_mux *me, uint8_t aux_ch) { diff --git a/driver/retimer/nb7v904m.h b/driver/retimer/nb7v904m.h index 3ccc6be6e1..d19602153c 100644 --- a/driver/retimer/nb7v904m.h +++ b/driver/retimer/nb7v904m.h @@ -23,9 +23,13 @@ #define NB7V904M_REG_CH_D_EQ_SETTINGS 0x07 #define NB7V904M_REG_AUX_CH_CTRL 0x09 #define NB7V904M_REG_CH_A_FLAT_GAIN 0x18 +#define NB7V904M_REG_CH_A_LOSS_CTRL 0x19 #define NB7V904M_REG_CH_B_FLAT_GAIN 0x1a +#define NB7V904M_REG_CH_B_LOSS_CTRL 0x1b #define NB7V904M_REG_CH_C_FLAT_GAIN 0x1c +#define NB7V904M_REG_CH_C_LOSS_CTRL 0x1d #define NB7V904M_REG_CH_D_FLAT_GAIN 0x1e +#define NB7V904M_REG_CH_D_LOSS_CTRL 0x1f /* 0x00 - General Device Settings */ #define NB7V904M_CHIP_EN BIT(0) @@ -97,6 +101,15 @@ #define NB7V904M_CH_D_GAIN_1P5_DB 0x02 #define NB7V904M_CH_D_GAIN_3P5_DB 0x03 +/* 0x19 - Channel A Loss Profile Matching Control */ +/* 0x1b - Channel B Loss Profile Matching Control */ +/* 0x1d - Channel C Loss Profile Matching Control */ +/* 0x1f - Channel D Loss Profile Matching Control */ +#define NB7V904M_LOSS_PROFILE_A 0x00 +#define NB7V904M_LOSS_PROFILE_B 0x01 +#define NB7V904M_LOSS_PROFILE_C 0x02 +#define NB7V904M_LOSS_PROFILE_D 0x03 + extern const struct usb_mux_driver nb7v904m_usb_redriver_drv; #ifdef CONFIG_NB7V904M_LPM_OVERRIDE extern int nb7v904m_lpm_disable; @@ -110,6 +123,11 @@ int nb7v904m_tune_usb_set_eq(const struct usb_mux *me, uint8_t eq_a, #define NB7V904M_CH_ALL_SKIP_GAIN 0xff int nb7v904m_tune_usb_flat_gain(const struct usb_mux *me, uint8_t gain_a, uint8_t gain_b, uint8_t gain_c, uint8_t gain_d); +/* Use this value if loss profile control wants to be skipped */ +#define NB7V904M_CH_ALL_SKIP_LOSS 0xff +/* Control channel Loss Profile Matching */ +int nb7v904m_set_loss_profile_match(const struct usb_mux *me, uint8_t loss_a, + uint8_t loss_b, uint8_t loss_c, uint8_t loss_d); /* Control mapping between AUX and SBU */ int nb7v904m_set_aux_ch_switch(const struct usb_mux *me, uint8_t aux_ch); #endif /* __CROS_EC_USB_REDRIVER_NB7V904M_H */ |