diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/typec/ucsi/ucsi_ccg.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index 5c0bf48be766..835f1c4372ba 100644 --- a/drivers/usb/typec/ucsi/ucsi_ccg.c +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c @@ -125,6 +125,11 @@ struct version_format { #define CCG_FW_BUILD_NVIDIA (('n' << 8) | 'v') #define CCG_OLD_FW_VERSION (CCG_VERSION(0x31) | CCG_VERSION_PATCH(10)) +/* Firmware for Tegra doesn't support UCSI ALT command, built + * for NVIDIA has known issue of reporting wrong capability info + */ +#define CCG_FW_BUILD_NVIDIA_TEGRA (('g' << 8) | 'n') + /* Altmode offset for NVIDIA Function Test Board (FTB) */ #define NVIDIA_FTB_DP_OFFSET (2) #define NVIDIA_FTB_DBG_OFFSET (3) @@ -513,6 +518,7 @@ static int ucsi_ccg_read(struct ucsi *ucsi, unsigned int offset, { struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(offset); + struct ucsi_capability *cap; struct ucsi_altmode *alt; int ret; @@ -536,6 +542,12 @@ static int ucsi_ccg_read(struct ucsi *ucsi, unsigned int offset, ucsi_ccg_nvidia_altmode(uc, alt); } break; + case UCSI_GET_CAPABILITY: + if (uc->fw_build == CCG_FW_BUILD_NVIDIA_TEGRA) { + cap = val; + cap->features &= ~UCSI_CAP_ALT_MODE_DETAILS; + } + break; default: break; } @@ -1403,7 +1415,7 @@ out_ucsi_destroy: return status; } -static int ucsi_ccg_remove(struct i2c_client *client) +static void ucsi_ccg_remove(struct i2c_client *client) { struct ucsi_ccg *uc = i2c_get_clientdata(client); @@ -1413,8 +1425,6 @@ static int ucsi_ccg_remove(struct i2c_client *client) ucsi_unregister(uc->ucsi); ucsi_destroy(uc->ucsi); free_irq(uc->irq, uc); - - return 0; } static const struct i2c_device_id ucsi_ccg_device_id[] = { |