Commit e5258b33 authored by Biju Das's avatar Biju Das Committed by Marc Kleine-Budde
Browse files

can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info 



All existing SoCs support an external clock, but RZ/G3E has only internal
clocks. Add external_clk variable to struct rcar_canfd_hw_info to handle
this difference.

Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarVincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250417054320.14100-18-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent c5670c23

drivers/net/can/rcar/rcar_canfd.c

+5 −1
Original line number Diff line number Diff line
@@ -541,6 +541,7 @@ struct rcar_canfd_hw_info { 
	unsigned multi_channel_irqs:1;	/* Has multiple channel irqs */

	unsigned ch_interface_mode:1;	/* Has channel interface mode */

	unsigned shared_can_regs:1;	/* Has shared classical can registers */

	unsigned external_clk:1;	/* Has external clock */

};



/* Channel priv data */
@@ -690,6 +691,7 @@ static const struct rcar_canfd_hw_info rcar_gen3_hw_info = { 
	.shared_global_irqs = 1,

	.ch_interface_mode = 0,

	.shared_can_regs = 0,

	.external_clk = 1,

};



static const struct rcar_canfd_hw_info rcar_gen4_hw_info = {
@@ -705,6 +707,7 @@ static const struct rcar_canfd_hw_info rcar_gen4_hw_info = { 
	.shared_global_irqs = 1,

	.ch_interface_mode = 1,

	.shared_can_regs = 1,

	.external_clk = 1,

};



static const struct rcar_canfd_hw_info rzg2l_hw_info = {
@@ -720,6 +723,7 @@ static const struct rcar_canfd_hw_info rzg2l_hw_info = { 
	.multi_channel_irqs = 1,

	.ch_interface_mode = 0,

	.shared_can_regs = 0,

	.external_clk = 1,

};



/* Helper functions */
@@ -2048,7 +2052,7 @@ static int rcar_canfd_probe(struct platform_device *pdev) 
		fcan_freq = clk_get_rate(gpriv->can_clk) / info->postdiv;

	} else {

		fcan_freq = clk_get_rate(gpriv->can_clk);

		gpriv->extclk = true;

		gpriv->extclk = gpriv->info->external_clk;

	}



	addr = devm_platform_ioremap_resource(pdev, 0);