From patchwork Thu Apr 7 07:17:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 12804539 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 A087DC433EF for ; Thu, 7 Apr 2022 07:19:45 +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=gGhU0ikVrLGvv66JiuQXxm9pf9YdbnPldTsue8Ya9Ic=; b=qi0Lk1Slu7eknr GVDM2Ky2nT3K93W0Vqeu8z8zWegJQVz9hBQIOATY0KRW0sYLH5NjOrnVMfQH/Ee2MVxiQyvNtYikr r9TIDB4ubfvxReeSyzJJUMfDg2DRiaByOeK0PODKlitLdFRs/ps0+Ki7eRkpiYrin0CD85t8s75LI 3E8G3OvZyN+5xF2gJtvvS9MF8QE0ZpwxGv8Xkb1+23wirUk+Bp4iqXjIB40RR9jTUpJ3nPAVjw/sV CZBvzj7v14JKJjnVF6wAmQPH5ql35gJHjz0Iw+UBT5NM/5NegfpOOp1EZfsHKHuXR4lSNumPxUZiS 6Bjg2hgnXXh3wnQpEfBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncMPT-009tQw-7a; Thu, 07 Apr 2022 07:18:27 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncMMS-009rze-1F for linux-arm-kernel@lists.infradead.org; Thu, 07 Apr 2022 07:15:22 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1649315720; x=1680851720; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0e0YH0Rg0+RZ78xVEZkAn/PzbIGpQvxvmrrugnXNfzs=; b=gTa8zr+znzvXa4XAOp9cOgGfAO3q8BaeXvWEdVtRFrIJvGqWpPyWUGZy yepFQ8YaiFuD+8dDSRfqyMDESaYBrzDRtdfYaQDcXkBsRkt576EfPQGRI LGs3uRkb3L4OXi4/LB/64vFnMesxRgf05H57F1XLtaAmiYsFypBdgjuRx YXmZQNTwgPWM932NUo9uDRiFS+yQ5iKjUHmxZV76i6+AHyQzGQbPbwWmz zIe3pQo8sNVSEyuVDttTQEl4EbKb3QyWWZcd7StK5QMCxeZmwel+PJLno N87wGiy8EdEmWvdNVAmE0z86nPJZlqWTlcgdvieKiXu8av1FX9ha98I4t w==; X-IronPort-AV: E=Sophos;i="5.90,241,1643698800"; d="scan'208";a="91587742" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 07 Apr 2022 00:15:19 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Thu, 7 Apr 2022 00:15:18 -0700 Received: from localhost.localdomain (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Thu, 7 Apr 2022 00:15:16 -0700 From: Claudiu Beznea To: , , , , , , , , CC: , Claudiu Beznea Subject: [PATCH v2 06/10] power: reset: at91-reset: add at91_reset_data Date: Thu, 7 Apr 2022 10:17:04 +0300 Message-ID: <20220407071708.3848812-7-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220407071708.3848812-1-claudiu.beznea@microchip.com> References: <20220407071708.3848812-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220407_001520_227733_F8C6283B X-CRM114-Status: GOOD ( 14.06 ) 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 Add struct at91_reset_data to keep per platform related information. This is a prerequisite for adding reset_controller_dev support. Signed-off-by: Claudiu Beznea --- drivers/power/reset/at91-reset.c | 38 ++++++++++++++++++++++++-------- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index e62798750b6b..1b2aca3f490d 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -79,6 +79,16 @@ struct at91_reset { u32 ramc_lpr; }; +/** + * struct at91_reset_data - AT91 reset data + * @reset_args: SoC specific system reset arguments + * @n_device_reset: number of device resets + */ +struct at91_reset_data { + u32 reset_args; + u32 n_device_reset; +}; + /* * unless the SDRAM is cleanly shutdown before we hit the * reset register it can be left driving the data bus and @@ -173,29 +183,34 @@ static const struct of_device_id at91_ramc_of_match[] = { { /* sentinel */ } }; +static const struct at91_reset_data sam9260 = { + .reset_args = AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST, +}; + +static const struct at91_reset_data samx7 = { + .reset_args = AT91_RSTC_KEY | AT91_RSTC_PROCRST, +}; + static const struct of_device_id at91_reset_of_match[] = { { .compatible = "atmel,at91sam9260-rstc", - .data = (void *)(AT91_RSTC_KEY | AT91_RSTC_PERRST | - AT91_RSTC_PROCRST), + .data = &sam9260, }, { .compatible = "atmel,at91sam9g45-rstc", - .data = (void *)(AT91_RSTC_KEY | AT91_RSTC_PERRST | - AT91_RSTC_PROCRST) + .data = &sam9260, }, { .compatible = "atmel,sama5d3-rstc", - .data = (void *)(AT91_RSTC_KEY | AT91_RSTC_PERRST | - AT91_RSTC_PROCRST) + .data = &sam9260, }, { .compatible = "atmel,samx7-rstc", - .data = (void *)(AT91_RSTC_KEY | AT91_RSTC_PROCRST) + .data = &samx7, }, { .compatible = "microchip,sam9x60-rstc", - .data = (void *)(AT91_RSTC_KEY | AT91_RSTC_PROCRST) + .data = &samx7, }, { /* sentinel */ } }; @@ -204,6 +219,7 @@ MODULE_DEVICE_TABLE(of, at91_reset_of_match); static int __init at91_reset_probe(struct platform_device *pdev) { const struct of_device_id *match; + const struct at91_reset_data *data; struct at91_reset *reset; struct device_node *np; int ret, idx = 0; @@ -233,9 +249,13 @@ static int __init at91_reset_probe(struct platform_device *pdev) } match = of_match_node(at91_reset_of_match, pdev->dev.of_node); + if (!match || !match->data) + return -ENODEV; + + data = match->data; reset->nb.notifier_call = at91_reset; reset->nb.priority = 192; - reset->args = (u32)match->data; + reset->args = data->reset_args; reset->sclk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(reset->sclk))