| Message ID | 20210409134056.18740-1-a-govindraju@ti.com |
|---|---|
| Headers | show |
| Series | CAN TRANSCEIVER: Add support for CAN transceivers | expand |
On 09.04.2021 19:10:50, Aswath Govindraju wrote: > The following series of patches add support for CAN transceivers. > > TCAN1042 has a standby signal that needs to be pulled high for > sending/receiving messages[1]. TCAN1043 has a enable signal along with > standby signal that needs to be pulled up for sending/receiving > messages[2], and other combinations of the two lines can be used to put the > transceiver in different states to reduce power consumption. On boards > like the AM654-idk and J721e-evm these signals are controlled using gpios. > > Patch 1 models the transceiver as a phy device tree node with properties > for max bit rate supported, gpio properties for indicating gpio pin numbers > to which standby and enable signals are connected. Please add a patch that adds the driver and the bindings to the MAINTAINERS file. Feel free to add it CAN NETWORK DRIVERS. regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
The following series of patches add support for CAN transceivers. TCAN1042 has a standby signal that needs to be pulled high for sending/receiving messages[1]. TCAN1043 has a enable signal along with standby signal that needs to be pulled up for sending/receiving messages[2], and other combinations of the two lines can be used to put the transceiver in different states to reduce power consumption. On boards like the AM654-idk and J721e-evm these signals are controlled using gpios. Patch 1 models the transceiver as a phy device tree node with properties for max bit rate supported, gpio properties for indicating gpio pin numbers to which standby and enable signals are connected. Patch 2 adds a generic driver to support CAN transceivers. Patches 3 & 4 add support for implementing the transceiver as a phy of m_can_platform driver. Aswath Govindraju (2): dt-bindings: phy: Add binding for TI TCAN104x CAN transceivers phy: phy-can-transceiver: Add support for generic CAN transceiver driver Faiz Abbas (2): dt-bindings: net: can: Document transceiver implementation as phy can: m_can_platform: Add support for transceiver as phy .../bindings/net/can/bosch,m_can.yaml | 6 + .../bindings/phy/ti,tcan104x-can.yaml | 56 +++++++ drivers/net/can/m_can/m_can_platform.c | 25 ++++ drivers/phy/Kconfig | 9 ++ drivers/phy/Makefile | 1 + drivers/phy/phy-can-transceiver.c | 140 ++++++++++++++++++ 6 files changed, 237 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml create mode 100644 drivers/phy/phy-can-transceiver.c