From patchwork Wed Mar 27 19:29:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13607418 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 16573C54E67 for ; Wed, 27 Mar 2024 20:33:46 +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=Y4tNNOADDh1Nc+PFy+C6TOZQ8S4d4R6o8UCKnxi81w4=; b=SEMvQQ7ZDUgRa6 k16/h4AblzWrqauBPcWh/7X4/pbXvxl6qna8ALsgPsjJfghgUVS0DaG+t9q7KnVUkOPURMsdyxZsV YpZxkGyQD+KDtE3tIzhzpP4pz59i5z3WwvB63KpILj+aPLLOZJlJeoXOPlAG6mNNOYyEFGQ0iqHPh 8EsqiVZ+nRHi/v5VP0bO3WaWEGisRtzv1xN70GpRC/msFP6Cqvpw/urhTGMH/cqNF+Oe6zhJBdnvU cMCS+32bgUtsVmq5QpiRWX9LaTYCHYRnatPtIP/hCVNInV8s4YOBHgGaOQnWO6ENbnGgbk1RC1Wfg NYrQXOQ5tYrk5pKLD25Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rpZxk-0000000B26S-11jc; Wed, 27 Mar 2024 20:33:32 +0000 Received: from mgamail.intel.com ([192.198.163.8]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rpZ02-0000000AnsF-22jg for linux-arm-kernel@lists.infradead.org; Wed, 27 Mar 2024 19:31:51 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1711567909; x=1743103909; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=jFzgo5+g95yyxQjjsoDzp1sVeyMA6hDbVV6LnWCwoqk=; b=SF+XflXmuBkbet4ftEMXMWxInBSFXpIZ5EETV2+fO9H7iCCPD14lqAAT q4UDLdkINK7C3tsgL5zSMuJyFnvKyfLXJ8pSDMrn41jqcpPZW9wIDBQrh t0sVkQKghEpkEYGSWFbW5qifpR0EwKTs8a3bDcGaX+D31eDOAU+3fQycr s+DYyzZRIUi7wy1fi7cMGnNAheNSf5LBPmQ4EupiMF6P15ekxv07FmS4+ GpYTErGmbBarB8T2x9gXg11hZ8+6pIMmh646hieWtw8MOPrr5hTt2DeyV XiGoEXt+Gz5rVavLKa+9SYcSxlYsUIR7NVrlyO6Uha96o/m/0H5BJp59I w==; X-CSE-ConnectionGUID: UpnCm92EQmq0d4maehEkWQ== X-CSE-MsgGUID: fEZrK3HrQn2JXr9Ii87A9Q== X-IronPort-AV: E=McAfee;i="6600,9927,11026"; a="24187292" X-IronPort-AV: E=Sophos;i="6.07,159,1708416000"; d="scan'208";a="24187292" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2024 12:31:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,11026"; a="937075024" X-IronPort-AV: E=Sophos;i="6.07,159,1708416000"; d="scan'208";a="937075024" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 27 Mar 2024 12:31:43 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id AB9E9524; Wed, 27 Mar 2024 21:31:42 +0200 (EET) From: Andy Shevchenko To: Mark Brown , Andy Shevchenko , linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King Subject: [PATCH v2 4/9] spi: pxa2xx: Skip SSP initialization if it's done elsewhere Date: Wed, 27 Mar 2024 21:29:23 +0200 Message-ID: <20240327193138.2385910-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240327193138.2385910-1-andriy.shevchenko@linux.intel.com> References: <20240327193138.2385910-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240327_123150_557679_0B3A9BC6 X-CRM114-Status: GOOD ( 13.91 ) 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 If SSP has been enumerated elsewhere, skip its initialization in pxa2xx_spi_init_pdata(). Signed-off-by: Andy Shevchenko --- drivers/spi/spi-pxa2xx.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index e7072727c25c..b01a18c89b6b 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1355,6 +1355,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device *parent = dev->parent; enum pxa_ssp_type type = SSP_UNDEFINED; + struct ssp_device *ssp = NULL; const void *match; bool is_lpss_priv; int status; @@ -1372,6 +1373,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) return ERR_PTR(status); type = (enum pxa_ssp_type)value; + } else { + ssp = pxa_ssp_request(pdev->id, pdev->name); + if (ssp) + type = ssp->type; } /* Validate the SSP type correctness */ @@ -1394,6 +1399,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) pdata->enable_dma = true; pdata->dma_burst_size = 1; + /* If SSP has been already enumerated, use it */ + if (ssp) + return pdata; + status = pxa2xx_spi_init_ssp(pdev, &pdata->ssp, type); if (status) return ERR_PTR(status);