From patchwork Tue Jun 21 13:14:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomer Maimon X-Patchwork-Id: 12889240 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 2AD19CCA48F for ; Tue, 21 Jun 2022 13:14:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351410AbiFUNOp (ORCPT ); Tue, 21 Jun 2022 09:14:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351236AbiFUNOi (ORCPT ); Tue, 21 Jun 2022 09:14:38 -0400 Received: from maillog.nuvoton.com (maillog.nuvoton.com [202.39.227.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4E51819C23; Tue, 21 Jun 2022 06:14:34 -0700 (PDT) Received: from NTHCCAS04.nuvoton.com (NTHCCAS04.nuvoton.com [10.1.8.29]) by maillog.nuvoton.com (Postfix) with ESMTP id 386E11C81185; Tue, 21 Jun 2022 21:14:30 +0800 (CST) Received: from NTHCML01A.nuvoton.com (10.1.8.177) by NTHCCAS04.nuvoton.com (10.1.8.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 21 Jun 2022 21:14:30 +0800 Received: from NTHCCAS01.nuvoton.com (10.1.8.28) by NTHCML01A.nuvoton.com (10.1.8.177) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 21 Jun 2022 21:14:29 +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; Tue, 21 Jun 2022 21:14:29 +0800 Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id 6AF8863A23; Tue, 21 Jun 2022 16:14:27 +0300 (IDT) From: Tomer Maimon To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Tomer Maimon Subject: [PATCH v4 09/18] reset: npcm: using syscon instead of device data Date: Tue, 21 Jun 2022 16:14:15 +0300 Message-ID: <20220621131424.162355-10-tmaimon77@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220621131424.162355-1-tmaimon77@gmail.com> References: <20220621131424.162355-1-tmaimon77@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.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 | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/reset/reset-npcm.c b/drivers/reset/reset-npcm.c index 2ea4d3136e15..431ff2b602c5 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"}, { } }; @@ -155,15 +154,15 @@ static int npcm_usb_reset(struct platform_device *pdev, struct npcm_rc_data *rc) u32 ipsrst1_bits = 0; u32 ipsrst2_bits = NPCM_IPSRST2_USB_HOST; u32 ipsrst3_bits = 0; - const char *gcr_dt; - 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 search for nuvoton,npcm750-gcr for Poleg backward compatibility"); + 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 */