From patchwork Wed Feb 21 18:31:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13566113 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DD7E9C5478A for ; Wed, 21 Feb 2024 18:38:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Avw9i2wk/KEmaOf9hA5t3KM9sbrlCNvUfVwjncawXJI=; b=g5O5kb1HvngcrD yYfNg/e4sYzE7Gyd4cffoSFyVznyy+fko8yLOcPktRBLSvkviEZSt3nkDsAwu/LG4sVgQIQR739Rn CoXWkuTg3plhLhPnSCtgwHJiwM49UkRNGpPOn6L0djapYWtF/SUnAoJb0roxXXoGKPTBYKYYU196d QRdpsNGTc09JKXJDLKEdW0zN8xf8x5iQQovtM95MHEfWMiIhBxKCkqErelnJ0j8Y2B+V0HmhDVLMC pM3nR4XwTM7BwnmfWEe2GgK8WfGtGr/NOTAsO2oqHRH+aYeW2VXXAIKx3d6WALBhrFKzqY3QhuIMq 9vWicQYDsSDan6Ml4yPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcrUE-000000028yD-2tmY; Wed, 21 Feb 2024 18:38:30 +0000 Received: from mgamail.intel.com ([192.198.163.7]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcrQs-000000027yz-0YaQ; Wed, 21 Feb 2024 18:35:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708540502; x=1740076502; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dYynpd7BpWY3yNBCHCGwe1IyzPj618I/HKzMJe4rUOU=; b=Yi4O3jlaSKo7EsUb6URjPFYfxbLPxtn/dkSz24WEgA5Vg0c1jST+uZ+C RX/Vhmh/vUVOhNrvfjwdGaoAhGNXraJCMIowkI02y5xgSeqxYNHVzReLD DX1aeGvT18xKyUQaHiapBN9AFYJRa7ZaSSxyhA+g6aEcjAX8EZo3Hy67b pcqjxLukG+xif9mpt6QpRrR9Fy3B7NbXaM4QyIprcsnT0e8R2p7JpLehc nRZVGFU0lljVA7zaGlyig4XShosIiP34HH+3NkWojiQlw+PAObVfCL6bs /yELe5RvNtbmkbG8J6SJYO5ir7oU5x+i2QyhlGQU7myGn9ILKdKY7Z5uz Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10991"; a="28164685" X-IronPort-AV: E=Sophos;i="6.06,176,1705392000"; d="scan'208";a="28164685" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Feb 2024 10:34:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10991"; a="936684740" X-IronPort-AV: E=Sophos;i="6.06,176,1705392000"; d="scan'208";a="936684740" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 21 Feb 2024 10:34:47 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id EA46D3F4; Wed, 21 Feb 2024 20:34:46 +0200 (EET) From: Andy Shevchenko To: Greg Kroah-Hartman , Andy Shevchenko , Thomas Gleixner , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-rpi-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-tegra@vger.kernel.org Cc: Jiri Slaby , Joel Stanley , Andrew Jeffery , Florian Fainelli , Ray Jui , Scott Branden , Broadcom internal kernel review list , Al Cooper , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Paul Cercueil , Vladimir Zapolskiy , Thierry Reding , Jonathan Hunter , Kunihiko Hayashi , Masami Hiramatsu , Andi Shyti Subject: [PATCH v1 04/14] serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties() Date: Wed, 21 Feb 2024 20:31:20 +0200 Message-ID: <20240221183442.4124354-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240221183442.4124354-1-andriy.shevchenko@linux.intel.com> References: <20240221183442.4124354-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240221_103513_512759_9C8D8F39 X-CRM114-Status: GOOD ( 18.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Since we have now a common helper to read port properties use it instead of sparse home grown solution. Reviewed-by: Andi Shyti Signed-off-by: Andy Shevchenko Reviewed-by: Andrew Jeffery --- drivers/tty/serial/8250/8250_aspeed_vuart.c | 50 +++++++-------------- 1 file changed, 15 insertions(+), 35 deletions(-) diff --git a/drivers/tty/serial/8250/8250_aspeed_vuart.c b/drivers/tty/serial/8250/8250_aspeed_vuart.c index 8c2aaf7af7b7..2a4bc39b11af 100644 --- a/drivers/tty/serial/8250/8250_aspeed_vuart.c +++ b/drivers/tty/serial/8250/8250_aspeed_vuart.c @@ -419,8 +419,8 @@ static int aspeed_vuart_probe(struct platform_device *pdev) struct aspeed_vuart *vuart; struct device_node *np; struct resource *res; - u32 clk, prop, sirq[2]; int rc, sirq_polarity; + u32 prop, sirq[2]; struct clk *vclk; np = pdev->dev.of_node; @@ -447,53 +447,35 @@ static int aspeed_vuart_probe(struct platform_device *pdev) port.port.status = UPSTAT_SYNC_FIFO; port.port.dev = &pdev->dev; port.port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_8250_CONSOLE); + port.port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_FIXED_PORT | UPF_FIXED_TYPE | + UPF_NO_THRE_TEST; port.bugs |= UART_BUG_TXRACE; rc = sysfs_create_group(&vuart->dev->kobj, &aspeed_vuart_attr_group); if (rc < 0) return rc; - if (of_property_read_u32(np, "clock-frequency", &clk)) { + rc = uart_read_port_properties(&port.port, true); + if (rc) + goto err_sysfs_remove; + + /* Get clk rate through clk driver if present */ + if (!port.port.uartclk) { vclk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(vclk)) { rc = dev_err_probe(dev, PTR_ERR(vclk), "clk or clock-frequency not defined\n"); goto err_sysfs_remove; } - clk = clk_get_rate(vclk); + port.port.uartclk = clk_get_rate(vclk); } /* If current-speed was set, then try not to change it. */ if (of_property_read_u32(np, "current-speed", &prop) == 0) - port.port.custom_divisor = clk / (16 * prop); + port.port.custom_divisor = port.port.uartclk / (16 * prop); - /* Check for shifted address mapping */ - if (of_property_read_u32(np, "reg-offset", &prop) == 0) - port.port.mapbase += prop; - - /* Check for registers offset within the devices address range */ - if (of_property_read_u32(np, "reg-shift", &prop) == 0) - port.port.regshift = prop; - - /* Check for fifo size */ - if (of_property_read_u32(np, "fifo-size", &prop) == 0) - port.port.fifosize = prop; - - /* Check for a fixed line number */ - rc = of_alias_get_id(np, "serial"); - if (rc >= 0) - port.port.line = rc; - - port.port.irq = irq_of_parse_and_map(np, 0); port.port.handle_irq = aspeed_vuart_handle_irq; - port.port.iotype = UPIO_MEM; port.port.type = PORT_ASPEED_VUART; - port.port.uartclk = clk; - port.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP - | UPF_FIXED_PORT | UPF_FIXED_TYPE | UPF_NO_THRE_TEST; - - if (of_property_read_bool(np, "no-loopback-test")) - port.port.flags |= UPF_SKIP_TEST; if (port.port.fifosize) port.capabilities = UART_CAP_FIFO; @@ -503,7 +485,7 @@ static int aspeed_vuart_probe(struct platform_device *pdev) rc = serial8250_register_8250_port(&port); if (rc < 0) - goto err_clk_disable; + goto err_sysfs_remove; vuart->line = rc; vuart->port = serial8250_get_port(vuart->line); @@ -529,7 +511,7 @@ static int aspeed_vuart_probe(struct platform_device *pdev) rc = aspeed_vuart_set_lpc_address(vuart, prop); if (rc < 0) { dev_err_probe(dev, rc, "invalid value in aspeed,lpc-io-reg property\n"); - goto err_clk_disable; + goto err_sysfs_remove; } rc = of_property_read_u32_array(np, "aspeed,lpc-interrupts", sirq, 2); @@ -541,14 +523,14 @@ static int aspeed_vuart_probe(struct platform_device *pdev) rc = aspeed_vuart_set_sirq(vuart, sirq[0]); if (rc < 0) { dev_err_probe(dev, rc, "invalid sirq number in aspeed,lpc-interrupts property\n"); - goto err_clk_disable; + goto err_sysfs_remove; } sirq_polarity = aspeed_vuart_map_irq_polarity(sirq[1]); if (sirq_polarity < 0) { rc = dev_err_probe(dev, sirq_polarity, "invalid sirq polarity in aspeed,lpc-interrupts property\n"); - goto err_clk_disable; + goto err_sysfs_remove; } aspeed_vuart_set_sirq_polarity(vuart, sirq_polarity); @@ -559,8 +541,6 @@ static int aspeed_vuart_probe(struct platform_device *pdev) return 0; -err_clk_disable: - irq_dispose_mapping(port.port.irq); err_sysfs_remove: sysfs_remove_group(&vuart->dev->kobj, &aspeed_vuart_attr_group); return rc;