diff mbox series

[5/6] can: rcar_canfd: Add multi_channel_irqs to struct rcar_canfd_hw_info

Message ID 20221022104357.1276740-6-biju.das.jz@bp.renesas.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series R-Can CAN FD driver enhancements | expand

Commit Message

Biju Das Oct. 22, 2022, 10:43 a.m. UTC 
RZ/G2L has separate IRQ lines for tx and error interrupt for each
channel whereas R-Car has a combined IRQ line for all the channel
specific tx and error interrupts.

Add multi_channel_irqs to struct rcar_canfd_hw_info to select the
driver to choose between combined and separate irq registration for
channel interrupts. This patch also removes enum rcanfd_chip_id and
chip_id from both struct rcar_canfd_hw_info, as it is unused.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/net/can/rcar/rcar_canfd.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

Comments

Geert Uytterhoeven Oct. 24, 2022, 2:50 p.m. UTC | #1 
On Sat, Oct 22, 2022 at 1:03 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
> RZ/G2L has separate IRQ lines for tx and error interrupt for each
> channel whereas R-Car has a combined IRQ line for all the channel
> specific tx and error interrupts.
>
> Add multi_channel_irqs to struct rcar_canfd_hw_info to select the
> driver to choose between combined and separate irq registration for
> channel interrupts. This patch also removes enum rcanfd_chip_id and
> chip_id from both struct rcar_canfd_hw_info, as it is unused.
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

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
diff mbox series

Patch

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index d226eb59010d..0b6f14df2a43 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -41,12 +41,6 @@ 
 
 #define RCANFD_DRV_NAME			"rcar_canfd"
 
-enum rcanfd_chip_id {
-	RENESAS_RCAR_GEN3 = 0,
-	RENESAS_RZG2L,
-	RENESAS_R8A779A0,
-};
-
 /* Global register bits */
 
 /* RSCFDnCFDGRMCFG */
@@ -524,11 +518,11 @@  enum rcar_canfd_fcanclk {
 struct rcar_canfd_global;
 
 struct rcar_canfd_hw_info {
-	enum rcanfd_chip_id chip_id;
 	u32 max_channels;
 	/* hardware features */
 	unsigned multi_global_irqs:1;	/* Has multiple global irqs  */
 	unsigned clk_postdiv:1;		/* Has CAN clk post divider  */
+	unsigned multi_channel_irqs:1;	/* Has multiple channel irqs  */
 };
 
 /* Channel priv data */
@@ -599,19 +593,17 @@  static const struct can_bittiming_const rcar_canfd_bittiming_const = {
 };
 
 static const struct rcar_canfd_hw_info rcar_gen3_hw_info = {
-	.chip_id = RENESAS_RCAR_GEN3,
 	.max_channels = 2,
 	.clk_postdiv = 1,
 };
 
 static const struct rcar_canfd_hw_info rzg2l_hw_info = {
-	.chip_id = RENESAS_RZG2L,
 	.max_channels = 2,
 	.multi_global_irqs = 1,
+	.multi_channel_irqs = 1,
 };
 
 static const struct rcar_canfd_hw_info r8a779a0_hw_info = {
-	.chip_id = RENESAS_R8A779A0,
 	.max_channels = 8,
 	.clk_postdiv = 1,
 };
@@ -1755,7 +1747,7 @@  static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch,
 	priv->can.clock.freq = fcan_freq;
 	dev_info(&pdev->dev, "can_clk rate is %u\n", priv->can.clock.freq);
 
-	if (info->chip_id == RENESAS_RZG2L) {
+	if (info->multi_channel_irqs) {
 		char *irq_name;
 		int err_irq;
 		int tx_irq;