From patchwork Mon Jul 11 12:35:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomer Maimon X-Patchwork-Id: 12913649 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7C15DC43334 for ; Mon, 11 Jul 2022 12:46:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QVS0FAlXG0XgjzbSUdjoMs66m6LuJnAhdKzIcH3JNtM=; b=kItG/DxjdgSq1T opi+OLwgtBJkr62tT2ZFDxoYQUNYO8qqSGdjSkr+6C8fG1LLn1A3f/y1QI3+qzyauiYmYA/pk0q6V dbodbd85Us73seF8JCPxMiz+qVnhU+Y4+J8+Fpsid75aD+7X/uBKTa/1zrJTqriv2Wa0JS4wfOSHC 4U7vPLsrFHl5TRUPE7z1r1Ho8lL8rs6mNsng1LSYmbtZtvq+p2dz63jONZUNqE58EER1bfRSBaSvk DnIykS3eQBAM2Y7lqP5WDnjNsU8Il/p3c6A7xHFurCdTaKFF3+Z6ogyIkxgUN+vrSyaSmwjZTQczX ttQGAXrXcGsSa5ctuWKA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oAsmN-001Yss-U7; Mon, 11 Jul 2022 12:44:48 +0000 Received: from maillog.nuvoton.com ([202.39.227.15]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oAsdV-001U8l-FP for linux-arm-kernel@lists.infradead.org; Mon, 11 Jul 2022 12:35:40 +0000 Received: from NTHCCAS01.nuvoton.com (NTHCCAS01.nuvoton.com [10.1.8.28]) by maillog.nuvoton.com (Postfix) with ESMTP id 2F90C1C811A9; Mon, 11 Jul 2022 20:35:26 +0800 (CST) Received: from NTHCCAS02.nuvoton.com (10.1.9.121) by NTHCCAS01.nuvoton.com (10.1.8.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Mon, 11 Jul 2022 20:35:25 +0800 Received: from NTHCCAS01.nuvoton.com (10.1.8.28) by NTHCCAS02.nuvoton.com (10.1.9.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Mon, 11 Jul 2022 20:35:25 +0800 Received: from taln60.nuvoton.co.il (10.191.1.180) by NTHCCAS01.nuvoton.com (10.1.12.25) with Microsoft SMTP Server id 15.1.2375.7 via Frontend Transport; Mon, 11 Jul 2022 20:35:25 +0800 Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id D659A63A52; Mon, 11 Jul 2022 15:35:23 +0300 (IDT) From: Tomer Maimon To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Tomer Maimon Subject: [PATCH v8 07/16] reset: npcm: using syscon instead of device data Date: Mon, 11 Jul 2022 15:35:10 +0300 Message-ID: <20220711123519.217219-8-tmaimon77@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220711123519.217219-1-tmaimon77@gmail.com> References: <20220711123519.217219-1-tmaimon77@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220711_053537_838879_D73DD822 X-CRM114-Status: GOOD ( 11.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Using syscon device tree property instead of device data to handle the NPCM general control registers. In case the syscon not found the code still search for nuvoton,npcm750-gcr to support DTS backward compatibility. Signed-off-by: Tomer Maimon --- drivers/reset/reset-npcm.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/reset/reset-npcm.c b/drivers/reset/reset-npcm.c index 2ea4d3136e15..b08f8d8a1d63 100644 --- a/drivers/reset/reset-npcm.c +++ b/drivers/reset/reset-npcm.c @@ -138,8 +138,7 @@ static int npcm_reset_xlate(struct reset_controller_dev *rcdev, } static const struct of_device_id npcm_rc_match[] = { - { .compatible = "nuvoton,npcm750-reset", - .data = (void *)"nuvoton,npcm750-gcr" }, + { .compatible = "nuvoton,npcm750-reset" }, { } }; @@ -160,10 +159,15 @@ static int npcm_usb_reset(struct platform_device *pdev, struct npcm_rc_data *rc) gcr_dt = (const char *) of_match_device(dev->driver->of_match_table, dev)->data; - gcr_regmap = syscon_regmap_lookup_by_compatible(gcr_dt); + gcr_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "nuvoton,sysgcr"); if (IS_ERR(gcr_regmap)) { - dev_err(&pdev->dev, "Failed to find %s\n", gcr_dt); - return PTR_ERR(gcr_regmap); + dev_warn(&pdev->dev, "Failed to find nuvoton,sysgcr property, please update the device tree\n"); + dev_info(&pdev->dev, "Using nuvoton,npcm750-gcr for Poleg backward compatibility\n"); + gcr_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-gcr"); + if (IS_ERR(gcr_regmap)) { + dev_err(&pdev->dev, "Failed to find nuvoton,npcm750-gcr"); + return PTR_ERR(gcr_regmap); + } } /* checking which USB device is enabled */