linux-kernel - Re: [RFC PATCH 0/3] M

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Date:   Wed, 17 Oct 2018 15:21:07 -0500
From:   Dan Murphy <dmurphy@...com>
To:     <wg@...ndegger.com>, <mkl@...gutronix.de>, <davem@...emloft.net>
CC:     <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 0/3] M_CAN Framework rework

Bump

On 10/10/2018 09:20 AM, Dan Murphy wrote:
> All
> 
> This patch series creates a m_can core framework that devices can register
> to.  The m_can core manages the Bosch IP and CAN frames.  Each device that
> is registered is responsible for managing device specific functions.
> 
> This rewrite was suggested in a device driver submission for the TCAN4x5x
> device
> Reference upstream post:
> https://lore.kernel.org/patchwork/patch/984163/
> 
> For instance the TCAN device is a SPI device that uses a specific data payload to
> determine writes and reads.  In addition the device has a reset input as well
> as a wakeup pin.  The register offset of the m_can registers differs and must
> be set by the device attached to the core.
> 
> The m_can core will use iomapped writes and reads as the default mechanism for
> writing and reading.  The device driver can provide over rides for this.
> 
> This patch series is not complete as it does not handle the CAN interrupts
> nor can perform a CAN write.  If this patch series is deemed acceptable I will
> finish debugging the driver and post a non RFC series.
> 
> Finally I did attempt to reduce the first patch with various git format patch
> directives but none seemed to reduce the patch.
> 
> Dan
> 
> Dan Murphy (3):
>   can: m_can: Create m_can core to leverage common code
>   dt-bindings: can: tcan4x5x: Add DT bindings for TCAN4x5X driver
>   can: tcan4x5x: Add tcan4x5x driver to the kernel
> 
>  .../devicetree/bindings/net/can/tcan4x5x.txt  |   34 +
>  drivers/net/can/m_can/Kconfig                 |   18 +
>  drivers/net/can/m_can/Makefile                |    4 +-
>  drivers/net/can/m_can/m_can.c                 | 1683 +----------------
>  .../net/can/m_can/{m_can.c => m_can_core.c}   |  479 +++--
>  drivers/net/can/m_can/m_can_core.h            |  100 +
>  drivers/net/can/m_can/tcan4x5x.c              |  321 ++++
>  7 files changed, 722 insertions(+), 1917 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/net/can/tcan4x5x.txt
>  copy drivers/net/can/m_can/{m_can.c => m_can_core.c} (83%)
>  create mode 100644 drivers/net/can/m_can/m_can_core.h
>  create mode 100644 drivers/net/can/m_can/tcan4x5x.c
> 


-- 
------------------
Dan Murphy