From patchwork Thu Jan 14 13:16:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiaWei Wang X-Patchwork-Id: 12019535 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8CFFC433DB for ; Thu, 14 Jan 2021 13:19:08 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 88A602222D for ; Thu, 14 Jan 2021 13:19:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 88A602222D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gDrlvhAKE5M6Evw8bXVulwtVQ5dBnt7z9cPwdElawlk=; b=Gy5Rie6/m6Y67yuc+epyBCKsz NWqXSu0COpcwgVVgKaQJEo7UAcOOK3ypIUDBQXJVc4TzZ37Z8MN2OGYqyDOWFzN6hP2kqks/iCn/n K2FZf+ZyKeMH/pwJqq9Ey7ae4rTPeN7I4E8PeSRDxwPFwxdIba1BIAfgzZQQ06ngbELLV5xcd+uUx 7AS7N36WYdv/CkGHGlB6WMCu6yIYhpW1mmEsNcZQBg5jaEo7HvjMwxeaL6jM2Gs6xccNhdvw8htsB MCF9jFq2+vDMNOqHRHaipjsnSuuA7Pm4mhYqRf7iU9OJfLC5j0mXRgBqmoLLT9EzIGDuQ9MTc9tWm bvwrSRJvg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l02Vi-0006v7-Nt; Thu, 14 Jan 2021 13:17:58 +0000 Received: from [211.20.114.71] (helo=twspam01.aspeedtech.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l02VP-0006nD-1X for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 13:17:47 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 10EDB1Sa082209; Thu, 14 Jan 2021 21:11:01 +0800 (GMT-8) (envelope-from chiawei_wang@aspeedtech.com) Received: from ChiaWeiWang-PC.aspeed.com (192.168.2.66) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 14 Jan 2021 21:16:03 +0800 From: "Chia-Wei, Wang" To: , , , , , , , , , , Subject: [PATCH v5 4/5] pinctrl: aspeed-g5: Adapt to new LPC device tree layout Date: Thu, 14 Jan 2021 21:16:21 +0800 Message-ID: <20210114131622.8951-5-chiawei_wang@aspeedtech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210114131622.8951-1-chiawei_wang@aspeedtech.com> References: <20210114131622.8951-1-chiawei_wang@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.2.66] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 10EDB1Sa082209 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210114_081739_744970_C7FB4444 X-CRM114-Status: GOOD ( 12.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: BMC-SW@aspeedtech.com, cyrilbur@gmail.com, haiyue.wang@linux.intel.com, rlippert@google.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add check against LPC device v2 compatible string to ensure that the fixed device tree layout is adopted. The LPC register offsets are also fixed accordingly. Signed-off-by: Chia-Wei, Wang Acked-by: Linus Walleij Reviewed-by: Andrew Jeffery Tested-by: Andrew Jeffery --- drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c index 0cab4c2576e2..996ebcba4d38 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c @@ -60,7 +60,7 @@ #define COND2 { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 } /* LHCR0 is offset from the end of the H8S/2168-compatible registers */ -#define LHCR0 0x20 +#define LHCR0 0xa0 #define GFX064 0x64 #define B14 0 @@ -2648,14 +2648,19 @@ static struct regmap *aspeed_g5_acquire_regmap(struct aspeed_pinmux_data *ctx, } if (ip == ASPEED_IP_LPC) { - struct device_node *node; + struct device_node *np; struct regmap *map; - node = of_parse_phandle(ctx->dev->of_node, + np = of_parse_phandle(ctx->dev->of_node, "aspeed,external-nodes", 1); - if (node) { - map = syscon_node_to_regmap(node->parent); - of_node_put(node); + if (np) { + if (!of_device_is_compatible(np->parent, "aspeed,ast2400-lpc-v2") && + !of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2") && + !of_device_is_compatible(np->parent, "aspeed,ast2600-lpc-v2")) + return ERR_PTR(-ENODEV); + + map = syscon_node_to_regmap(np->parent); + of_node_put(np); if (IS_ERR(map)) return map; } else