From: Biju Das Date: Thu, 17 Apr 2025 05:43:18 +0000 (+0100) Subject: can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info X-Git-Tag: v6.16-rc1~132^2~32^2~3^2~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5258b337de26c97cf210858407e0fc881bc0e3d;p=thirdparty%2Fkernel%2Flinux.git 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: Geert Uytterhoeven Reviewed-by: Vincent Mailhol Signed-off-by: Biju Das Link: https://patch.msgid.link/20250417054320.14100-18-biju.das.jz@bp.renesas.com Signed-off-by: Marc Kleine-Budde --- diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 67f7b5f6376c4..0bf0e88dfe257 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -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);