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: 13607342 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84D4515250B; Wed, 27 Mar 2024 19:31:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711567911; cv=none; b=q9aaXb3++5Ad8uQjxfX8q+E3IHrokmxcEmnT3uldS+oYQKJwVcjozZNfY3L+bfwhANpeG6yIaWcnOJ4dtOm8idOK+Cqqo0pp87KMPNtPDT81vuGQn9VqK/qJvFp9hLFgplhlNQR721eIfPfVwxfrRwpThQNPUyRCVWh787R+YSY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711567911; c=relaxed/simple; bh=jFzgo5+g95yyxQjjsoDzp1sVeyMA6hDbVV6LnWCwoqk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hxnXuArZvD1KGLnxwzUsBjvD2/lYI3ASg9DLaO3VewHe3n+v34rxEZde6DjKVp9jYqjevuXt60eVyVMv6c4VgLZ/9lOgo3BBX40WWvq5RRi5IIGYbcgcGbhDKdSXR/mrpEVWDegiiEimqvgL5uZqoyYhUhup1GeUjxDyeFSmThg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=SF+XflXm; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="SF+XflXm" 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: bTjCszQ8RfGsYp8ISDhKag== X-CSE-MsgGUID: ky3U/v/dSEa8kMnX0JTwrQ== X-IronPort-AV: E=McAfee;i="6600,9927,11026"; a="24187296" X-IronPort-AV: E=Sophos;i="6.07,159,1708416000"; d="scan'208";a="24187296" 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> Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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);