Thread (19 messages) 19 messages, 4 authors, 2021-07-16

Re: [PATCH 2/6] can: rcar_canfd: Add support for RZ/G2L family

From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: 2021-07-16 08:33:18
Also in: linux-can, linux-clk, linux-devicetree, linux-renesas-soc, lkml

Hi Geert,

On Fri, Jul 16, 2021 at 8:47 AM Geert Uytterhoeven [off-list ref] wrote:
Hi Prabhakar,

On Thu, Jul 15, 2021 at 8:21 PM Lad Prabhakar
[off-list ref] wrote:
quoted
CANFD block on RZ/G2L SoC is almost identical to one found on
R-Car Gen3 SoC's.

On RZ/G2L SoC interrupt sources for each channel are split into
different sources, irq handlers for the same are added.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Thanks for your patch!
quoted
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1070,6 +1077,56 @@ static void rcar_canfd_tx_done(struct net_device *ndev)
        can_led_event(ndev, CAN_LED_EVENT_TX);
 }

+static irqreturn_t rcar_canfd_global_err_interrupt(int irq, void *dev_id)
+{
quoted
+static irqreturn_t rcar_canfd_global_recieve_fifo_interrupt(int irq, void *dev_id)
+{
quoted
 static irqreturn_t rcar_canfd_global_interrupt(int irq, void *dev_id)
 {
        struct rcar_canfd_global *gpriv = dev_id;
@@ -1139,6 +1196,56 @@ static void rcar_canfd_state_change(struct net_device *ndev,
        }
 }

+static irqreturn_t rcar_canfd_channel_tx_interrupt(int irq, void *dev_id)
+{
quoted
+static irqreturn_t rcar_canfd_channel_err_interrupt(int irq, void *dev_id)
+{
It looks like the new split interrupt handlers duplicate code from
the existing unified interrupt handlers.  Perhaps the latter can be
made to call the former instead?
Agreed.

Cheers,
Prabhakar
Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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