From patchwork Wed Apr 2 10:22:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 14035774 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5108C236458; Wed, 2 Apr 2025 10:23:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743589417; cv=none; b=OQ+BB4wXfT2GWgFwAlZR0xCrihuFnRdasYxr+0eY5qkz03dwkbREc5PoYRBZDOPJ++Ejgnqs8hPW6U2raNyQv+VruF+/SiAqsYrGoRQAr+nXBBZz4bgZRyUfEIb9d11dlOjXPonNFHHiwQSop1q/z5NdzA5g0nvvgkznRetiEOk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743589417; c=relaxed/simple; bh=7fIh0qAmuWaknqgBDZFudnSDW33VQKb/IMN9ZUEM8EQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Bjdwt7ybE2QW8s7TpsTMpy8bO1BTCPEljNuYtGdfjz6cEO0pSp0CsVDv8iJA7jj9kx28PKYRY9T6b48V2z2H8hI9Oh38Tpv5wp6aHgc7UlHAITOuMqcaNxtdOG3VzWOcSNJBTq6V35lAXB4592B/DainaWrp+5k+eot6YdaWVyY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: tVklE34bS+O9c7IyKS3YKg== X-CSE-MsgGUID: UPiPBUzdSyC349w5xfu3OQ== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 02 Apr 2025 19:23:35 +0900 Received: from localhost.localdomain (unknown [10.226.93.220]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 2547C4224218; Wed, 2 Apr 2025 19:23:32 +0900 (JST) From: Biju Das To: Marc Kleine-Budde , Vincent Mailhol Cc: Biju Das , Wolfram Sang , Geert Uytterhoeven , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , linux-can@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das , linux-renesas-soc@vger.kernel.org Subject: [PATCH v8 17/19] can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info Date: Wed, 2 Apr 2025 11:22:09 +0100 Message-ID: <20250402102226.28032-18-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250402102226.28032-1-biju.das.jz@bp.renesas.com> References: <20250402102226.28032-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- v7->v8: * Renamed only_internal_clks->external_clk to avoid negation. * Updated commit description. * Updated rcar_canfd_hw_info tables. * Collected tag. v6->v7: * No change. v5->v6: * No change. v4->v5: * Collected tag. * Improved commit description by "All SoCs supports extenal clock"-> "All existing SoCs support an external clock". v3->v4: * No change. v2->v3: * No change v1->v2: * No change. --- drivers/net/can/rcar/rcar_canfd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 5c46bc0e352f..11dd3730e98c 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -540,6 +540,7 @@ 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 */ @@ -689,6 +690,7 @@ 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 = { @@ -704,6 +706,7 @@ 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 = { @@ -719,6 +722,7 @@ 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 */ @@ -2047,7 +2051,7 @@ 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);