On 14.05.2021 13:19:44, Torin Cooper-Bennun wrote:
> This callback will allow M_CAN-based devices, e.g. TI TCAN4550, to
> handle device-specific interrupts which are not part of the M_CAN core,
> but are signaled on the same interrupt pin.
>
> Signed-off-by: Torin Cooper-Bennun <torin@xxxxxxxxxxxxxxxxxx>
Another option would be to register a 2nd threaded interrupt handler in
the tcan4x5x driver....But this is much simpler.
> ---
> drivers/net/can/m_can/m_can.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
> index ace071c3e58c..99203a37f9cc 100644
> --- a/drivers/net/can/m_can/m_can.h
> +++ b/drivers/net/can/m_can/m_can.h
> @@ -28,6 +28,7 @@
> #include <linux/iopoll.h>
> #include <linux/can/dev.h>
> #include <linux/pinctrl/consumer.h>
> +#include <linux/irqreturn.h>
>
> /* m_can lec values */
> enum m_can_lec_type {
> @@ -62,6 +63,7 @@ struct m_can_classdev;
> struct m_can_ops {
> /* Device specific call backs */
> int (*clear_interrupts)(struct m_can_classdev *cdev);
> + irqreturn_t (*handle_dev_interrupts)(struct m_can_classdev *cdev);
> u32 (*read_reg)(struct m_can_classdev *cdev, int reg);
> int (*write_reg)(struct m_can_classdev *cdev, int reg, int val);
> u32 (*read_fifo)(struct m_can_classdev *cdev, int addr_offset);
> --
> 2.30.2
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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