Hi all, On 16/04/21 5:12 pm, Aswath Govindraju wrote: > The following series of patches add support for implementing the > transceiver as a phy of m_can_platform driver. > > 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. > > These gpios are set in phy driver, and the transceiver can be put in > different states using phy API. The phy driver is added in the series [3]. > > This patch series is dependent on [4]. > > changes since v2: > - changed dev_err to dev_err_probe in patch 2 > - used mcan_class instead of priv to assign max bit rate > - Picked up Rob Herring's acked-by for patch 1 > > changes since v1: > - Used the API devm_phy_get_optional() instead of > devm_of_phy_get_optional_by_index() > > [1] - https://www.ti.com/lit/ds/symlink/tcan1042h.pdf > [2] - https://www.ti.com/lit/ds/symlink/tcan1043-q1.pdf > [3] - https://lore.kernel.org/patchwork/project/lkml/list/?series=495511 > [4] - https://lore.kernel.org/patchwork/patch/1413286/ > Posted v4 for this series after adding phy_power_off in the path when there is an error. Thanks, Aswath > Faiz Abbas (2): > dt-bindings: net: can: Document transceiver implementation as phy > can: m_can: Add support for transceiver as phy > > .../devicetree/bindings/net/can/bosch,m_can.yaml | 3 +++ > drivers/net/can/m_can/m_can.c | 10 ++++++++++ > drivers/net/can/m_can/m_can.h | 2 ++ > drivers/net/can/m_can/m_can_platform.c | 13 +++++++++++++ > 4 files changed, 28 insertions(+) >
