From patchwork Tue Jan 8 17:58:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 10752681 X-Patchwork-Delegate: dvhart@infradead.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3A18514E5 for ; Tue, 8 Jan 2019 18:00:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2841628E52 for ; Tue, 8 Jan 2019 18:00:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1C54A28E59; Tue, 8 Jan 2019 18:00:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8DAFD28E53 for ; Tue, 8 Jan 2019 18:00:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729410AbfAHR7C (ORCPT ); Tue, 8 Jan 2019 12:59:02 -0500 Received: from shell.v3.sk ([90.176.6.54]:49974 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729370AbfAHR7B (ORCPT ); Tue, 8 Jan 2019 12:59:01 -0500 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 52C0B100056; Tue, 8 Jan 2019 18:58:57 +0100 (CET) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id BCYiUlhQpEPb; Tue, 8 Jan 2019 18:58:40 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id A6486100052; Tue, 8 Jan 2019 18:58:30 +0100 (CET) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id exfZ-Ige95WI; Tue, 8 Jan 2019 18:58:28 +0100 (CET) Received: from belphegor.brq.redhat.com (nat-pool-brq-t.redhat.com [213.175.37.10]) by zimbra.v3.sk (Postfix) with ESMTPSA id A409D10004D; Tue, 8 Jan 2019 18:58:25 +0100 (CET) From: Lubomir Rintel To: Andy Shevchenko , Darren Hart , platform-driver-x86@vger.kernel.org, Russell King Cc: James Cameron , Mark Rutland , Pavel Machek , Rob Herring , Sebastian Reichel , x86@kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Lubomir Rintel Subject: [PATCH v4 10/15] x86, olpc: Use a correct version when making up a battery node Date: Tue, 8 Jan 2019 18:58:13 +0100 Message-Id: <20190108175818.705110-11-lkundrak@v3.sk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190108175818.705110-1-lkundrak@v3.sk> References: <20190108175818.705110-1-lkundrak@v3.sk> MIME-Version: 1.0 Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The XO-1 and XO-1.5 batteries apparently differ in an ability to report ambient temperature. Add a different compatible string to the 1.5 battery. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- Changes since v1: - Avoid splitting string literals arch/x86/platform/olpc/olpc_dt.c | 84 +++++++++++++++++++++----------- 1 file changed, 56 insertions(+), 28 deletions(-) diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c index b4ab779f1d47..8557add82752 100644 --- a/arch/x86/platform/olpc/olpc_dt.c +++ b/arch/x86/platform/olpc/olpc_dt.c @@ -217,10 +217,28 @@ static u32 __init olpc_dt_get_board_revision(void) return be32_to_cpu(rev); } -void __init olpc_dt_fixup(void) +int olpc_dt_compatible_match(phandle node, const char *compat) { - int r; char buf[64]; + int plen; + char *p; + int len; + + plen = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf)); + if (plen <= 0) + return 0; + + len = strlen(compat); + for (p = buf; p < buf + plen; p += strlen(p) + 1) { + if (strcmp(p, compat) == 0) + return 1; + } + + return 0; +} + +void __init olpc_dt_fixup(void) +{ phandle node; u32 board_rev; @@ -228,41 +246,51 @@ void __init olpc_dt_fixup(void) if (!node) return; - /* - * If the battery node has a compatible property, we are running a new - * enough firmware and don't have fixups to make. - */ - r = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf)); - if (r > 0) - return; - - pr_info("PROM DT: Old firmware detected, applying fixes\n"); - - /* Add olpc,xo1-battery compatible marker to battery node */ - olpc_dt_interpret("\" /battery@0\" find-device" - " \" olpc,xo1-battery\" +compatible" - " device-end"); - board_rev = olpc_dt_get_board_revision(); if (!board_rev) return; if (board_rev >= olpc_board_pre(0xd0)) { + if (olpc_dt_compatible_match(node, "olpc,xo1.5-battery")) + return; + + /* Add olpc,xo1.5-battery compatible marker to battery node */ + olpc_dt_interpret("\" /battery@0\" find-device"); + olpc_dt_interpret(" \" olpc,xo1.5-battery\" +compatible"); + olpc_dt_interpret("device-end"); + + /* We're running a very old firmware if this is missing. */ + if (olpc_dt_compatible_match(node, "olpc,xo1-battery")) + return; + /* XO-1.5: add dcon device */ - olpc_dt_interpret("\" /pci/display@1\" find-device" - " new-device" - " \" dcon\" device-name \" olpc,xo1-dcon\" +compatible" - " finish-device device-end"); + olpc_dt_interpret("\" /pci/display@1\" find-device"); + olpc_dt_interpret(" new-device"); + olpc_dt_interpret(" \" dcon\" device-name"); + olpc_dt_interpret(" \" olpc,xo1-dcon\" +compatible"); + olpc_dt_interpret(" finish-device"); + olpc_dt_interpret("device-end"); } else { + /* We're running a very old firmware if this is missing. */ + if (olpc_dt_compatible_match(node, "olpc,xo1-battery")) + return; + /* XO-1: add dcon device, mark RTC as olpc,xo1-rtc */ - olpc_dt_interpret("\" /pci/display@1,1\" find-device" - " new-device" - " \" dcon\" device-name \" olpc,xo1-dcon\" +compatible" - " finish-device device-end" - " \" /rtc\" find-device" - " \" olpc,xo1-rtc\" +compatible" - " device-end"); + olpc_dt_interpret("\" /pci/display@1,1\" find-device"); + olpc_dt_interpret(" new-device"); + olpc_dt_interpret(" \" dcon\" device-name"); + olpc_dt_interpret(" \" olpc,xo1-dcon\" +compatible"); + olpc_dt_interpret(" finish-device"); + olpc_dt_interpret("device-end"); + olpc_dt_interpret("\" /rtc\" find-device"); + olpc_dt_interpret(" \" olpc,xo1-rtc\" +compatible"); + olpc_dt_interpret("device-end"); } + + /* Add olpc,xo1-battery compatible marker to battery node */ + olpc_dt_interpret("\" /battery@0\" find-device"); + olpc_dt_interpret(" \" olpc,xo1-battery\" +compatible"); + olpc_dt_interpret("device-end"); } void __init olpc_dt_build_devicetree(void)