From patchwork Tue May 16 11:00:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Schnelle X-Patchwork-Id: 683881 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 4829EC7EE23 for ; Tue, 16 May 2023 11:11:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232813AbjEPLLS (ORCPT ); Tue, 16 May 2023 07:11:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232814AbjEPLLD (ORCPT ); Tue, 16 May 2023 07:11:03 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 967E2D8; Tue, 16 May 2023 04:09:53 -0700 (PDT) Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34GB44eq006482; Tue, 16 May 2023 11:08:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Xnmp6X0qL0zeKYH38Xvfl6ZMW1/Auj5gq04lGrIhuYs=; b=YlkmCd7H5u0sgJ0X74Msc0g3bz+X+QmSM6w2BaWeGdcq2KotsdMr/JoDCb63or7niaXh nMpGm9Ov/D+SJqaS+VLhUxmWH6nIfUGLABQQVhQuQZUiAeumUtr2iNT82WAps1U0qwR/ Kb4y4B+8tpyBedF+rJGsVF9jdzDzRHJI6sBN90qltifLz+WacTWJ37UHITUopGARAriI WlNIYeUmkvi76XawiSlx9ZAjKoCUWZh56AIVe6IuUulqGdRSichNwWoHbHgjJIKaONhL FltTdlagv98hhtZRDLvQ23Gzl05/xkAz+w0LjeoqBwIDQW6yGa/LnePI0ESBIuEasg87 Pg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3qm8mrrc6d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:08:49 +0000 Received: from m0353725.ppops.net (m0353725.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 34GB5gt2017876; Tue, 16 May 2023 11:07:01 GMT Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3qm8mrr7nq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:07:01 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 34G1c0ip027917; Tue, 16 May 2023 11:01:12 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3qj264sjvm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:01:12 +0000 Received: from smtpav04.fra02v.mail.ibm.com (smtpav04.fra02v.mail.ibm.com [10.20.54.103]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 34GB19vt24445640 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 May 2023 11:01:09 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B675A20043; Tue, 16 May 2023 11:01:09 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 596E220040; Tue, 16 May 2023 11:01:09 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 16 May 2023 11:01:09 +0000 (GMT) From: Niklas Schnelle To: Arnd Bergmann , Greg Kroah-Hartman , Jiri Slaby Cc: Bjorn Helgaas , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Mauro Carvalho Chehab , Alan Stern , "Rafael J. Wysocki" , Geert Uytterhoeven , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-pci@vger.kernel.org, Arnd Bergmann , linux-serial@vger.kernel.org Subject: [PATCH v4 33/41] tty: serial: handle HAS_IOPORT dependencies Date: Tue, 16 May 2023 13:00:29 +0200 Message-Id: <20230516110038.2413224-34-schnelle@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230516110038.2413224-1-schnelle@linux.ibm.com> References: <20230516110038.2413224-1-schnelle@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: biHOP2Q-2JiF04-XB4LVy_v4nFDt1Nw_ X-Proofpoint-GUID: H3GNej9JNcqM914NpYfwBLPvDlpiYJ9v X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-16_04,2023-05-16_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 spamscore=0 impostorscore=0 mlxscore=0 mlxlogscore=999 lowpriorityscore=0 suspectscore=0 adultscore=0 phishscore=0 bulkscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305160094 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. We thus need to add HAS_IOPORT as dependency for those drivers using them unconditionally. For 8250 based drivers some support MMIO only use so fence only the parts requiring I/O ports. Co-developed-by: Arnd Bergmann Signed-off-by: Arnd Bergmann Signed-off-by: Niklas Schnelle --- Note: The HAS_IOPORT Kconfig option was added in v6.4-rc1 so per-subsystem patches may be applied independently drivers/tty/Kconfig | 4 +-- drivers/tty/serial/8250/8250_early.c | 4 +++ drivers/tty/serial/8250/8250_pci.c | 14 +++++++++ drivers/tty/serial/8250/8250_port.c | 44 +++++++++++++++++++++++----- drivers/tty/serial/8250/Kconfig | 5 ++-- drivers/tty/serial/Kconfig | 2 +- 6 files changed, 60 insertions(+), 13 deletions(-) diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index 341abaed4ce2..bdd267dbd5e4 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -222,7 +222,7 @@ config MOXA_INTELLIO config MOXA_SMARTIO tristate "Moxa SmartIO support v. 2.0" - depends on SERIAL_NONSTANDARD && PCI + depends on SERIAL_NONSTANDARD && PCI && HAS_IOPORT help Say Y here if you have a Moxa SmartIO multiport serial card and/or want to help develop a new version of this driver. @@ -303,7 +303,7 @@ config GOLDFISH_TTY_EARLY_CONSOLE config IPWIRELESS tristate "IPWireless 3G UMTS PCMCIA card support" - depends on PCMCIA && NETDEVICES + depends on PCMCIA && NETDEVICES && HAS_IOPORT select PPP help This is a driver for 3G UMTS PCMCIA card from IPWireless company. In diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index 0ebde0ab8167..4192b1ae2736 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -48,8 +48,10 @@ static unsigned int serial8250_early_in(struct uart_port *port, int offset) return readl(port->membase + offset); case UPIO_MEM32BE: return ioread32be(port->membase + offset); +#ifdef CONFIG_HAS_IOPORT case UPIO_PORT: return inb(port->iobase + offset); +#endif case UPIO_AU: return port->serial_in(port, reg_offset); default: @@ -75,9 +77,11 @@ static void serial8250_early_out(struct uart_port *port, int offset, int value) case UPIO_MEM32BE: iowrite32be(value, port->membase + offset); break; +#ifdef CONFIG_HAS_IOPORT case UPIO_PORT: outb(value, port->iobase + offset); break; +#endif case UPIO_AU: port->serial_out(port, reg_offset, value); break; diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index c55be6fda0ca..70bd84a05da7 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -847,6 +847,7 @@ static int pci_netmos_init(struct pci_dev *dev) return num_serial; } +#ifdef CONFIG_HAS_IOPORT /* * These chips are available with optionally one parallel port and up to * two serial ports. Unfortunately they all have the same product id. @@ -973,6 +974,7 @@ static void pci_ite887x_exit(struct pci_dev *dev) ioport &= 0xffff; release_region(ioport, ITE_887x_IOSIZE); } +#endif /* CONFIG_HAS_IOPORT */ /* * Oxford Semiconductor Inc. @@ -1255,6 +1257,7 @@ static int pci_asix_setup(struct serial_private *priv, #define QOPR_CLOCK_X8 0x0003 #define QOPR_CLOCK_RATE_MASK 0x0003 +#ifdef CONFIG_HAS_IOPORT /* Quatech devices have their own extra interface features */ static struct pci_device_id quatech_cards[] = { { PCI_DEVICE_DATA(QUATECH, QSC100, 1) }, @@ -1474,6 +1477,7 @@ static int pci_quatech_setup(struct serial_private *priv, pci_warn(priv->dev, "software control of RS422 features not currently supported.\n"); return pci_default_setup(priv, board, port, idx); } +#endif /* CONFIG_HAS_IOPORT */ static int pci_default_setup(struct serial_private *priv, const struct pciserial_board *board, @@ -1753,6 +1757,7 @@ static int skip_tx_en_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } +#ifdef CONFIG_HAS_IOPORT static void kt_handle_break(struct uart_port *p) { struct uart_8250_port *up = up_to_u8250p(p); @@ -1796,6 +1801,7 @@ static int kt_serial_setup(struct serial_private *priv, port->port.handle_break = kt_handle_break; return skip_tx_en_setup(priv, board, port, idx); } +#endif /* CONFIG_HAS_IOPORT */ static int pci_eg20t_init(struct pci_dev *dev) { @@ -1840,6 +1846,7 @@ pci_wch_ch38x_setup(struct serial_private *priv, #define CH384_XINT_ENABLE_REG 0xEB #define CH384_XINT_ENABLE_BIT 0x02 +#ifdef CONFIG_HAS_IOPORT static int pci_wch_ch38x_init(struct pci_dev *dev) { int max_port; @@ -1867,6 +1874,7 @@ static void pci_wch_ch38x_exit(struct pci_dev *dev) iobase = pci_resource_start(dev, 0); outb(0x0, iobase + CH384_XINT_ENABLE_REG); } +#endif /* CONFIG_HAS_IOPORT */ static int @@ -2070,6 +2078,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .subdevice = PCI_ANY_ID, .setup = ce4100_serial_setup, }, +#ifdef CONFIG_HAS_IOPORT { .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_PATSBURG_KT, @@ -2089,6 +2098,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .setup = pci_default_setup, .exit = pci_ite887x_exit, }, +#endif /* * National Instruments */ @@ -2210,6 +2220,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .exit = pci_ni8430_exit, }, /* Quatech */ +#ifdef CONFIG_HAS_IOPORT { .vendor = PCI_VENDOR_ID_QUATECH, .device = PCI_ANY_ID, @@ -2218,6 +2229,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .init = pci_quatech_init, .setup = pci_quatech_setup, }, +#endif /* * Panacom */ @@ -2588,6 +2600,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch38x_setup, }, +#ifdef CONFIG_HAS_IOPORT /* WCH CH384 8S card (16850 clone) */ { .vendor = PCIE_VENDOR_ID_WCH, @@ -2598,6 +2611,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .exit = pci_wch_ch38x_exit, .setup = pci_wch_ch38x_setup, }, +#endif /* * ASIX devices with FIFO bug */ diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index fe8d79c4ae95..8d8606dc763b 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -401,6 +401,7 @@ static void au_serial_dl_write(struct uart_8250_port *up, int value) #endif +#ifdef CONFIG_HAS_IOPORT static unsigned int hub6_serial_in(struct uart_port *p, int offset) { offset = offset << p->regshift; @@ -414,6 +415,7 @@ static void hub6_serial_out(struct uart_port *p, int offset, int value) outb(p->hub6 - 1 + offset, p->iobase); outb(value, p->iobase + 1); } +#endif /* CONFIG_HAS_IOPORT */ static unsigned int mem_serial_in(struct uart_port *p, int offset) { @@ -463,6 +465,7 @@ static unsigned int mem32be_serial_in(struct uart_port *p, int offset) return ioread32be(p->membase + offset); } +#ifdef CONFIG_HAS_IOPORT static unsigned int io_serial_in(struct uart_port *p, int offset) { offset = offset << p->regshift; @@ -474,6 +477,24 @@ static void io_serial_out(struct uart_port *p, int offset, int value) offset = offset << p->regshift; outb(value, p->iobase + offset); } +#endif +static unsigned int no_serial_in(struct uart_port *p, int offset) +{ + return (unsigned int)-1; +} + +static void no_serial_out(struct uart_port *p, int offset, int value) +{ +} + +#ifdef CONFIG_HAS_IOPORT +static inline bool is_upf_fourport(struct uart_port *port) +{ + return port->flags & UPF_FOURPORT; +} +#else +#define is_upf_fourport(x) false +#endif static int serial8250_default_handle_irq(struct uart_port *port); @@ -485,10 +506,12 @@ static void set_io_from_upio(struct uart_port *p) up->dl_write = default_serial_dl_write; switch (p->iotype) { +#ifdef CONFIG_HAS_IOPORT case UPIO_HUB6: p->serial_in = hub6_serial_in; p->serial_out = hub6_serial_out; break; +#endif case UPIO_MEM: p->serial_in = mem_serial_in; @@ -519,10 +542,17 @@ static void set_io_from_upio(struct uart_port *p) break; #endif - default: +#ifdef CONFIG_HAS_IOPORT + case UPIO_PORT: p->serial_in = io_serial_in; p->serial_out = io_serial_out; break; +#endif + + default: + WARN(1, "Unsupported UART type %x\n", p->iotype); + p->serial_in = no_serial_in; + p->serial_out = no_serial_out; } /* Remember loaded iotype */ up->cur_iotype = p->iotype; @@ -1379,7 +1409,7 @@ static void autoconfig_irq(struct uart_8250_port *up) unsigned long irqs; int irq; - if (port->flags & UPF_FOURPORT) { + if (is_upf_fourport(port)) { ICP = (port->iobase & 0xfe0) | 0x1f; save_ICP = inb_p(ICP); outb_p(0x80, ICP); @@ -1398,7 +1428,7 @@ static void autoconfig_irq(struct uart_8250_port *up) irqs = probe_irq_on(); serial8250_out_MCR(up, 0); udelay(10); - if (port->flags & UPF_FOURPORT) { + if (is_upf_fourport(port)) { serial8250_out_MCR(up, UART_MCR_DTR | UART_MCR_RTS); } else { serial8250_out_MCR(up, @@ -1416,7 +1446,7 @@ static void autoconfig_irq(struct uart_8250_port *up) serial8250_out_MCR(up, save_mcr); serial_out(up, UART_IER, save_ier); - if (port->flags & UPF_FOURPORT) + if (is_upf_fourport(port)) outb_p(save_ICP, ICP); if (uart_console(port)) @@ -2381,7 +2411,7 @@ int serial8250_do_startup(struct uart_port *port) serial_port_out(port, UART_LCR, UART_LCR_WLEN8); spin_lock_irqsave(&port->lock, flags); - if (up->port.flags & UPF_FOURPORT) { + if (is_upf_fourport(&up->port)) { if (!up->port.irq) up->port.mctrl |= TIOCM_OUT1; } else @@ -2463,7 +2493,7 @@ int serial8250_do_startup(struct uart_port *port) */ up->ier = UART_IER_RLSI | UART_IER_RDI; - if (port->flags & UPF_FOURPORT) { + if (is_upf_fourport(port)) { unsigned int icp; /* * Enable interrupts on the AST Fourport board @@ -2506,7 +2536,7 @@ void serial8250_do_shutdown(struct uart_port *port) serial8250_release_dma(up); spin_lock_irqsave(&port->lock, flags); - if (port->flags & UPF_FOURPORT) { + if (is_upf_fourport(port)) { /* reset interrupts on the AST Fourport board */ inb((port->iobase & 0xfe0) | 0x1f); port->mctrl |= TIOCM_OUT1; diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 5313aa31930f..2a43bea7d7c3 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -6,7 +6,6 @@ config SERIAL_8250 tristate "8250/16550 and compatible serial support" - depends on !S390 select SERIAL_CORE select SERIAL_MCTRL_GPIO if GPIOLIB help @@ -72,7 +71,7 @@ config SERIAL_8250_16550A_VARIANTS config SERIAL_8250_FINTEK bool "Support for Fintek F81216A LPC to 4 UART RS485 API" - depends on SERIAL_8250 + depends on SERIAL_8250 && HAS_IOPORT help Selecting this option will add support for the RS485 capabilities of the Fintek F81216A LPC to 4 UART. @@ -160,7 +159,7 @@ config SERIAL_8250_HP300 config SERIAL_8250_CS tristate "8250/16550 PCMCIA device support" - depends on PCMCIA && SERIAL_8250 + depends on PCMCIA && SERIAL_8250 && HAS_IOPORT help Say Y here to enable support for 16-bit PCMCIA serial devices, including serial port cards, modems, and the modem functions of diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 398e5aac2e77..dc41b3be6800 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -871,7 +871,7 @@ config SERIAL_TXX9_STDSERIAL config SERIAL_JSM tristate "Digi International NEO and Classic PCI Support" - depends on PCI + depends on PCI && HAS_IOPORT select SERIAL_CORE help This is a driver for Digi International's Neo and Classic series