From patchwork Thu Oct 27 08:21:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13021768 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BEFE5FA373E for ; Thu, 27 Oct 2022 08:22:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234916AbiJ0IWp (ORCPT ); Thu, 27 Oct 2022 04:22:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234952AbiJ0IW3 (ORCPT ); Thu, 27 Oct 2022 04:22:29 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8E5856744F; Thu, 27 Oct 2022 01:22:25 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.95,217,1661785200"; d="scan'208";a="138124204" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 27 Oct 2022 17:22:25 +0900 Received: from localhost.localdomain (unknown [10.226.93.45]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 01B874048F22; Thu, 27 Oct 2022 17:22:19 +0900 (JST) From: Biju Das To: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Biju Das , Vincent Mailhol , =?utf-8?q?Stefan_M=C3=A4tje?= , Ulrich Hecht , Lad Prabhakar , Christophe JAILLET , linux-can@vger.kernel.org, netdev@vger.kernel.org, Geert Uytterhoeven , Chris Paterson , Biju Das , linux-renesas-soc@vger.kernel.org Subject: [PATCH v3 3/6] can: rcar_canfd: Add shared_global_irqs to struct rcar_canfd_hw_info Date: Thu, 27 Oct 2022 09:21:55 +0100 Message-Id: <20221027082158.95895-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221027082158.95895-1-biju.das.jz@bp.renesas.com> References: <20221027082158.95895-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org RZ/G2L has separate IRQ lines for receive FIFO and global error interrupt whereas R-Car has shared IRQ line. Add shared_global_irqs to struct rcar_canfd_hw_info to select the driver to choose between shared and separate irq registration for global interrupts. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- v2->v3: * No change v1->v2: * Replaced multi_global_irqs->shared_global_irqs to make it positive checks. * Added Rb tag from Geert. --- drivers/net/can/rcar/rcar_canfd.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 255cb0825f13..c8d44dc36515 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -526,6 +526,8 @@ struct rcar_canfd_global; struct rcar_canfd_hw_info { enum rcanfd_chip_id chip_id; u8 max_channels; + /* hardware features */ + unsigned shared_global_irqs:1; /* Has shared global irqs */ }; /* Channel priv data */ @@ -598,6 +600,7 @@ 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, + .shared_global_irqs = 1, }; static const struct rcar_canfd_hw_info rzg2l_hw_info = { @@ -608,6 +611,7 @@ static const struct rcar_canfd_hw_info rzg2l_hw_info = { static const struct rcar_canfd_hw_info r8a779a0_hw_info = { .chip_id = RENESAS_R8A779A0, .max_channels = 8, + .shared_global_irqs = 1, }; /* Helper functions */ @@ -1868,7 +1872,7 @@ static int rcar_canfd_probe(struct platform_device *pdev) of_node_put(of_child); } - if (info->chip_id != RENESAS_RZG2L) { + if (info->shared_global_irqs) { ch_irq = platform_get_irq_byname_optional(pdev, "ch_int"); if (ch_irq < 0) { /* For backward compatibility get irq by index */ @@ -1951,7 +1955,7 @@ static int rcar_canfd_probe(struct platform_device *pdev) gpriv->base = addr; /* Request IRQ that's common for both channels */ - if (info->chip_id != RENESAS_RZG2L) { + if (info->shared_global_irqs) { err = devm_request_irq(&pdev->dev, ch_irq, rcar_canfd_channel_interrupt, 0, "canfd.ch_int", gpriv);