From patchwork Tue Apr 19 13:37:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 563751 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 0B384C3526F for ; Tue, 19 Apr 2022 13:42:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352557AbiDSNor (ORCPT ); Tue, 19 Apr 2022 09:44:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244866AbiDSNnp (ORCPT ); Tue, 19 Apr 2022 09:43:45 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F8E8182; Tue, 19 Apr 2022 06:41:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id DF144B8197F; Tue, 19 Apr 2022 13:41:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1808EC385A5; Tue, 19 Apr 2022 13:40:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650375659; bh=0G3cWV48CpbBHTE2pnfpd8IteUQx33zVzk5I5jOHq28=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tcaHuW+qziDrvzUpHuEMFKwFU24gmYLLaVW/lH4YSmvt7xGUnfF0sNVHp802pMZbG K6J/uNMNn5vL9mXzi8X3zRI/z8lzVEB3EuRwjjxKiFdSM+arUaoowF1MoiFyyH8XVV /v4R5gyMXGZMU1ta0p9hOmph2xXY8RLU5gpqA4zETCrSrM5Xh09D1z+ACK4EbozYv5 9Sive/zvlpYwCeQ4lV4Bn/MYQu9361EX6fnn4oEfAgmr8UYhW5oVkAM1jX9gnVVYhJ ZhuIwaJaHXeGR4SyNhWN+K44rhkpWMXYC38ShwJwl87he4xwz0XOvHfjHqz/624Ycs 325kt1woDgtcA== From: Arnd Bergmann To: linux-omap@vger.kernel.org, tony@atomide.com, aaro.koskinen@iki.fi, jmkrzyszt@gmail.com Cc: Arnd Bergmann , Russell King , Paul Walmsley , Kevin Hilman , Peter Ujfalusi , Vinod Koul , Dmitry Torokhov , Ulf Hansson , Dominik Brodowski , Mark Brown , Felipe Balbi , Alan Stern , Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller , Linus Walleij , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, dmaengine@vger.kernel.org, linux-input@vger.kernel.org, linux-mmc@vger.kernel.org, linux-serial@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH 27/41] ARM: omap1: use pci_remap_iospace() for omap_cf Date: Tue, 19 Apr 2022 15:37:09 +0200 Message-Id: <20220419133723.1394715-28-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220419133723.1394715-1-arnd@kernel.org> References: <20220419133723.1394715-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Arnd Bergmann The ISA I/O space handling in omap_cf is incompatible with PCI drivers in a multiplatform kernel, and requires a custom mach/io.h. Change the driver to use pci_remap_iospace() like PCI drivers do, so the generic ioport access can work across platforms. To actually use that code, we have to select CONFIG_PCI here. Signed-off-by: Arnd Bergmann --- arch/arm/Kconfig | 2 +- arch/arm/mach-omap1/include/mach/io.h | 45 --------------------------- drivers/pcmcia/omap_cf.c | 10 +++--- 3 files changed, 5 insertions(+), 52 deletions(-) delete mode 100644 arch/arm/mach-omap1/include/mach/io.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 700655e31b04..a57ad0928edc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -487,11 +487,11 @@ config ARCH_OMAP1 bool "TI OMAP1" select ARCH_OMAP select CLKSRC_MMIO + select FORCE_PCI if PCCARD select GENERIC_IRQ_CHIP select GPIOLIB select HAVE_LEGACY_CLK select IRQ_DOMAIN - select NEED_MACH_IO_H if PCCARD select NEED_MACH_MEMORY_H select SPARSE_IRQ help diff --git a/arch/arm/mach-omap1/include/mach/io.h b/arch/arm/mach-omap1/include/mach/io.h deleted file mode 100644 index ce4f8005b26f..000000000000 --- a/arch/arm/mach-omap1/include/mach/io.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * arch/arm/mach-omap1/include/mach/io.h - * - * IO definitions for TI OMAP processors and boards - * - * Copied from arch/arm/mach-sa1100/include/mach/io.h - * Copyright (C) 1997-1999 Russell King - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Modifications: - * 06-12-1997 RMK Created. - * 07-04-1999 RMK Major cleanup - */ - -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffffffff - -/* - * We don't actually have real ISA nor PCI buses, but there is so many - * drivers out there that might just work if we fake them... - */ -#define __io(a) __typesafe_io(a) - -#endif diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index 093022ce7d91..1972a8f6fa8e 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -205,6 +205,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) int irq; int status; struct resource *res; + struct resource iospace = DEFINE_RES_IO(SZ_64, SZ_4K); seg = (int) pdev->dev.platform_data; if (seg == 0 || seg > 3) @@ -235,9 +236,9 @@ static int __init omap_cf_probe(struct platform_device *pdev) cf->phys_cf = res->start; /* pcmcia layer only remaps "real" memory */ - cf->socket.io_offset = (unsigned long) - ioremap(cf->phys_cf + SZ_4K, SZ_2K); - if (!cf->socket.io_offset) { + cf->socket.io_offset = iospace.start; + status = pci_remap_iospace(&iospace, cf->phys_cf + SZ_4K); + if (status) { status = -ENOMEM; goto fail1; } @@ -285,8 +286,6 @@ static int __init omap_cf_probe(struct platform_device *pdev) fail2: release_mem_region(cf->phys_cf, SZ_8K); fail1: - if (cf->socket.io_offset) - iounmap((void __iomem *) cf->socket.io_offset); free_irq(irq, cf); fail0: kfree(cf); @@ -300,7 +299,6 @@ static int __exit omap_cf_remove(struct platform_device *pdev) cf->active = 0; pcmcia_unregister_socket(&cf->socket); del_timer_sync(&cf->timer); - iounmap((void __iomem *) cf->socket.io_offset); release_mem_region(cf->phys_cf, SZ_8K); free_irq(cf->irq, cf); kfree(cf);