From patchwork Mon Jun 6 16:41:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 579786 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 DF7A9CCA473 for ; Mon, 6 Jun 2022 17:14:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229698AbiFFROH (ORCPT ); Mon, 6 Jun 2022 13:14:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229831AbiFFRNs (ORCPT ); Mon, 6 Jun 2022 13:13:48 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67B793878A; Mon, 6 Jun 2022 10:04:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654535076; x=1686071076; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8B3oBa5J+/nZtfBbVHEcmqTofXo8TT8r9m6GWKF4qqA=; b=VOXLQdbqEmDOjfQLktWJcGsVLYc1dwvVlie7eG5SUvbUDdvn9gyVgaPj NVIJWWV9F6GN8AS54gAf9qZGQdzBEONDo4/LHw125sVOwcugo/sOnV7YD XzwHpbBeKGqMGcVCxRdgN8cED4XCGmPpiiL6OjZKwqgoUqVCGtZmJyF8e n2bE7jOAo3vR9rmJnSsgUqwO+b5tDL9pZjo3wp+BiiZbLwJrYo974aUST 0FsnKdTaaVDmmYCtSqFaLd+bpplGAwVxAuJki9f/rK3taaSyfjlLHcEto NAU/lLHBW7DZqQIHply7dTwWsUownZin9C8saFPr/hfOW8LdeBvPEs6ok A==; X-IronPort-AV: E=McAfee;i="6400,9594,10370"; a="277055858" X-IronPort-AV: E=Sophos;i="5.91,280,1647327600"; d="scan'208";a="277055858" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2022 09:42:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,280,1647327600"; d="scan'208";a="709122657" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga004.jf.intel.com with ESMTP; 06 Jun 2022 09:41:55 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id E430A11FA; Mon, 6 Jun 2022 19:41:50 +0300 (EEST) From: Andy Shevchenko To: Tony Luck , Andy Shevchenko , Wolfram Sang , Jean Delvare , Heiner Kallweit , Henning Schild , Lee Jones , Mika Westerberg , Hans de Goede , Linus Walleij , Jonathan Yong , Guenter Roeck , Wim Van Sebroeck , linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-i2c@vger.kernel.org, linux-leds@vger.kernel.org, linux-gpio@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-watchdog@vger.kernel.org Cc: Borislav Petkov , Mauro Carvalho Chehab , James Morse , Robert Richter , Jean Delvare , Pavel Machek , Peter Tyser , Andy Shevchenko , Mark Gross Subject: [PATCH v6 11/12] platform/x86: simatic-ipc: drop custom P2SB bar code Date: Mon, 6 Jun 2022 19:41:37 +0300 Message-Id: <20220606164138.66535-12-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220606164138.66535-1-andriy.shevchenko@linux.intel.com> References: <20220606164138.66535-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org From: Henning Schild The two drivers that used to use this have been switched over to the common P2SB accessor, so this code is not needed any longer. Signed-off-by: Henning Schild Signed-off-by: Andy Shevchenko Reviewed-by: Hans de Goede --- drivers/platform/x86/simatic-ipc.c | 38 ------------------- .../platform_data/x86/simatic-ipc-base.h | 2 - 2 files changed, 40 deletions(-) diff --git a/drivers/platform/x86/simatic-ipc.c b/drivers/platform/x86/simatic-ipc.c index b599cda5ba3c..26c35e1660cb 100644 --- a/drivers/platform/x86/simatic-ipc.c +++ b/drivers/platform/x86/simatic-ipc.c @@ -101,44 +101,6 @@ static int register_platform_devices(u32 station_id) return 0; } -/* FIXME: this should eventually be done with generic P2SB discovery code - * the individual drivers for watchdogs and LEDs access memory that implements - * GPIO, but pinctrl will not come up because of missing ACPI entries - * - * While there is no conflict a cleaner solution would be to somehow bring up - * pinctrl even with these ACPI entries missing, and base the drivers on pinctrl. - * After which the following function could be dropped, together with the code - * poking the memory. - */ -/* - * Get membase address from PCI, used in leds and wdt module. Here we read - * the bar0. The final address calculation is done in the appropriate modules - */ -u32 simatic_ipc_get_membase0(unsigned int p2sb) -{ - struct pci_bus *bus; - u32 bar0 = 0; - /* - * The GPIO memory is in bar0 of the hidden P2SB device. - * Unhide the device to have a quick look at it, before we hide it - * again. - * Also grab the pci rescan lock so that device does not get discovered - * and remapped while it is visible. - * This code is inspired by drivers/mfd/lpc_ich.c - */ - bus = pci_find_bus(0, 0); - pci_lock_rescan_remove(); - pci_bus_write_config_byte(bus, p2sb, 0xE1, 0x0); - pci_bus_read_config_dword(bus, p2sb, PCI_BASE_ADDRESS_0, &bar0); - - bar0 &= ~0xf; - pci_bus_write_config_byte(bus, p2sb, 0xE1, 0x1); - pci_unlock_rescan_remove(); - - return bar0; -} -EXPORT_SYMBOL(simatic_ipc_get_membase0); - static int __init simatic_ipc_init_module(void) { const struct dmi_system_id *match; diff --git a/include/linux/platform_data/x86/simatic-ipc-base.h b/include/linux/platform_data/x86/simatic-ipc-base.h index 62d2bc774067..39fefd48cf4d 100644 --- a/include/linux/platform_data/x86/simatic-ipc-base.h +++ b/include/linux/platform_data/x86/simatic-ipc-base.h @@ -24,6 +24,4 @@ struct simatic_ipc_platform { u8 devmode; }; -u32 simatic_ipc_get_membase0(unsigned int p2sb); - #endif /* __PLATFORM_DATA_X86_SIMATIC_IPC_BASE_H */