From patchwork Mon Mar 4 12:27:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 777939 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 935393F9D3; Mon, 4 Mar 2024 12:30:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709555455; cv=none; b=fozjaEy023H3WYgAzIQSk76MHA/GCuvtYImlS3mmWKS3y52Aw/W/uWbQi2WNzkN162ZZzPZhGEzBPdVnPMP52OXIXZT7JUa21MtqeKnL1dKHGdxVMQNY5MzXljv2+9HFHhoe/Fwn4T2jyvpqkCHF0XXffSE+4IqXnOeUtVaQG1M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709555455; c=relaxed/simple; bh=SzQIkG/284NbMg3wo1c8q5FeA364sZ6TEiiECx0F2ig=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MAOcb1S91rExkjJo6VJwE3zZotGY09/7ivhpCHo12ZPJBhlOKFV/NDVbnJ9n1hXLukXwffqtlEOZG8JL2/IIFMr1azkXUa1FlwUOT/EqI35TUYLtZ/1Os6NQNP7JKls18JJKaCQ7CzYm0SrHVzZUpA/e/aIPO3uPGq60gkKt2nE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=UY3J6dqC; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="UY3J6dqC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709555454; x=1741091454; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SzQIkG/284NbMg3wo1c8q5FeA364sZ6TEiiECx0F2ig=; b=UY3J6dqCz6rx9HLKNyG6XsJnkzPo3KpPjMwlVk0WrRf1rSqlvLt6lkF6 dl6n7yyf2K65jBLKI+uDs6BZKvAT9XO1LMCErRXPiuUGQayNT6p4oQAEV jDN/n9a75QxplajXFGAWOZ9QO6Lhq9xnjFrfz+KerVuLt7Ql31xSbI8vg vHf90MJuFI5QghUXu89TE4REvTEyB9yszQpYlVaO2S6GWrqP6eDPjU4aC vxyaL3gfkYRq3UoRn48ujvf0cIo3Pj7aV4uRZCqMkVE+nZpva2xg47QK6 qMR/yjjRG3CnueL6iaVTQq/ZOdwSrZT6/HM8YsJnfFYFDHrKRYdOPwED0 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,11002"; a="7815169" X-IronPort-AV: E=Sophos;i="6.06,203,1705392000"; d="scan'208";a="7815169" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2024 04:30:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,11002"; a="937040427" X-IronPort-AV: E=Sophos;i="6.06,203,1705392000"; d="scan'208";a="937040427" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 04 Mar 2024 04:30:44 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 7D90E6FE; Mon, 4 Mar 2024 14:30:37 +0200 (EET) From: Andy Shevchenko To: Greg Kroah-Hartman , Andy Shevchenko , Florian Fainelli , 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 , Broadcom internal kernel review list , Ray Jui , Scott Branden , Al Cooper , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Paul Cercueil , Vladimir Zapolskiy , Thierry Reding , Jonathan Hunter , Kunihiko Hayashi , Masami Hiramatsu Subject: [PATCH v3 06/14] serial: 8250_bcm7271: Switch to use uart_read_port_properties() Date: Mon, 4 Mar 2024 14:27:07 +0200 Message-ID: <20240304123035.758700-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240304123035.758700-1-andriy.shevchenko@linux.intel.com> References: <20240304123035.758700-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Since we have now a common helper to read port properties use it instead of sparse home grown solution. Signed-off-by: Andy Shevchenko Reviewed-by: Florian Fainelli Tested-by: Florian Fainelli --- drivers/tty/serial/8250/8250_bcm7271.c | 56 +++++++++----------------- 1 file changed, 19 insertions(+), 37 deletions(-) diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c index 1532fa2e8ec4..5daa38d9c64e 100644 --- a/drivers/tty/serial/8250/8250_bcm7271.c +++ b/drivers/tty/serial/8250/8250_bcm7271.c @@ -935,17 +935,14 @@ static void brcmuart_init_debugfs(struct brcmuart_priv *priv, static int brcmuart_probe(struct platform_device *pdev) { struct resource *regs; - struct device_node *np = pdev->dev.of_node; const struct of_device_id *of_id = NULL; struct uart_8250_port *new_port; struct device *dev = &pdev->dev; struct brcmuart_priv *priv; struct clk *baud_mux_clk; struct uart_8250_port up; - int irq; void __iomem *membase = NULL; resource_size_t mapbase = 0; - u32 clk_rate = 0; int ret; int x; int dma_irq; @@ -953,15 +950,12 @@ static int brcmuart_probe(struct platform_device *pdev) "uart", "dma_rx", "dma_tx", "dma_intr2", "dma_arb" }; - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; priv = devm_kzalloc(dev, sizeof(struct brcmuart_priv), GFP_KERNEL); if (!priv) return -ENOMEM; - of_id = of_match_node(brcmuart_dt_ids, np); + of_id = of_match_node(brcmuart_dt_ids, dev->of_node); if (!of_id || !of_id->data) priv->rate_table = brcmstb_rate_table; else @@ -1011,7 +1005,23 @@ static int brcmuart_probe(struct platform_device *pdev) } } - of_property_read_u32(np, "clock-frequency", &clk_rate); + dev_dbg(dev, "DMA is %senabled\n", priv->dma_enabled ? "" : "not "); + + memset(&up, 0, sizeof(up)); + up.port.type = PORT_BCM7271; + up.port.dev = dev; + up.port.mapbase = mapbase; + up.port.membase = membase; + up.port.handle_irq = brcmuart_handle_irq; + up.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_FIXED_TYPE; + up.port.private_data = priv; + + ret = uart_read_port_properties(&up.port); + if (ret) + goto release_dma; + + up.port.regshift = 2; + up.port.iotype = device_is_big_endian(dev) ? UPIO_MEM32BE : UPIO_MEM32; /* See if a Baud clock has been specified */ baud_mux_clk = devm_clk_get_optional_enabled(dev, "sw_baud"); @@ -1023,39 +1033,11 @@ static int brcmuart_probe(struct platform_device *pdev) priv->baud_mux_clk = baud_mux_clk; init_real_clk_rates(dev, priv); - clk_rate = priv->default_mux_rate; + up.port.uartclk = priv->default_mux_rate; } else { dev_dbg(dev, "BAUD MUX clock not specified\n"); } - if (clk_rate == 0) { - ret = dev_err_probe(dev, -EINVAL, "clock-frequency or clk not defined\n"); - goto release_dma; - } - - dev_dbg(dev, "DMA is %senabled\n", priv->dma_enabled ? "" : "not "); - - memset(&up, 0, sizeof(up)); - up.port.type = PORT_BCM7271; - up.port.uartclk = clk_rate; - up.port.dev = dev; - up.port.mapbase = mapbase; - up.port.membase = membase; - up.port.irq = irq; - up.port.handle_irq = brcmuart_handle_irq; - up.port.regshift = 2; - up.port.iotype = of_device_is_big_endian(np) ? - UPIO_MEM32BE : UPIO_MEM32; - up.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF - | UPF_FIXED_PORT | UPF_FIXED_TYPE; - up.port.dev = dev; - up.port.private_data = priv; - - /* Check for a fixed line number */ - ret = of_alias_get_id(np, "serial"); - if (ret >= 0) - up.port.line = ret; - /* setup HR timer */ hrtimer_init(&priv->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); priv->hrt.function = brcmuart_hrtimer_func;