Re: [PATCH 0/2] MCAN: Add support for implementing transceiver as a phy

From: Aswath Govindraju
Date: Thu Apr 15 2021 - 11:17:27 EST


Hi all,

On 15/04/21 8:36 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].
>
> [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=495365
>

Please ignore this series. I will post a respin using
devm_phy_get_optional instead of devm_of_phy_get_optional_by_index()
based on the comments below[1]. Sorry for the noise.

[1] - https://lore.kernel.org/patchwork/patch/1413931/

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(+)
>