diff options
| -rw-r--r-- | drivers/phy/phy-can-transceiver.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/phy/phy-can-transceiver.c b/drivers/phy/phy-can-transceiver.c index 89189be9b795..330356706ad7 100644 --- a/drivers/phy/phy-can-transceiver.c +++ b/drivers/phy/phy-can-transceiver.c @@ -18,10 +18,12 @@ struct can_transceiver_data { #define CAN_TRANSCEIVER_STB_PRESENT BIT(0) #define CAN_TRANSCEIVER_EN_PRESENT BIT(1) #define CAN_TRANSCEIVER_DUAL_CH BIT(2) +#define CAN_TRANSCEIVER_SILENT_PRESENT BIT(3) }; struct can_transceiver_phy { struct phy *generic_phy; + struct gpio_desc *silent_gpio; struct gpio_desc *standby_gpio; struct gpio_desc *enable_gpio; struct can_transceiver_priv *priv; @@ -47,6 +49,7 @@ static int can_transceiver_phy_power_on(struct phy *phy) return ret; } } + gpiod_set_value_cansleep(can_transceiver_phy->silent_gpio, 0); gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 0); gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 1); @@ -59,6 +62,7 @@ static int can_transceiver_phy_power_off(struct phy *phy) struct can_transceiver_phy *can_transceiver_phy = phy_get_drvdata(phy); struct can_transceiver_priv *priv = can_transceiver_phy->priv; + gpiod_set_value_cansleep(can_transceiver_phy->silent_gpio, 1); gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 1); gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 0); if (priv->mux_state) @@ -85,6 +89,14 @@ static const struct can_transceiver_data tja1048_drvdata = { .flags = CAN_TRANSCEIVER_STB_PRESENT | CAN_TRANSCEIVER_DUAL_CH, }; +static const struct can_transceiver_data tja1051_drvdata = { + .flags = CAN_TRANSCEIVER_SILENT_PRESENT | CAN_TRANSCEIVER_EN_PRESENT, +}; + +static const struct can_transceiver_data tja1057_drvdata = { + .flags = CAN_TRANSCEIVER_SILENT_PRESENT, +}; + static const struct of_device_id can_transceiver_phy_ids[] = { { .compatible = "ti,tcan1042", @@ -99,6 +111,14 @@ static const struct of_device_id can_transceiver_phy_ids[] = { .data = &tja1048_drvdata }, { + .compatible = "nxp,tja1051", + .data = &tja1051_drvdata + }, + { + .compatible = "nxp,tja1057", + .data = &tja1057_drvdata + }, + { .compatible = "nxp,tjr1443", .data = &tcan1043_drvdata }, @@ -144,6 +164,7 @@ static int can_transceiver_phy_probe(struct platform_device *pdev) const struct can_transceiver_data *drvdata; const struct of_device_id *match; struct phy *phy; + struct gpio_desc *silent_gpio; struct gpio_desc *standby_gpio; struct gpio_desc *enable_gpio; struct mux_state *mux_state; @@ -203,7 +224,16 @@ static int can_transceiver_phy_probe(struct platform_device *pdev) can_transceiver_phy->enable_gpio = enable_gpio; } + if (drvdata->flags & CAN_TRANSCEIVER_SILENT_PRESENT) { + silent_gpio = devm_gpiod_get_index_optional(dev, "silent", i, + GPIOD_OUT_LOW); + if (IS_ERR(silent_gpio)) + return PTR_ERR(silent_gpio); + can_transceiver_phy->silent_gpio = silent_gpio; + } + phy_set_drvdata(can_transceiver_phy->generic_phy, can_transceiver_phy); + } phy_provider = devm_of_phy_provider_register(dev, can_transceiver_phy_xlate); |