From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751466AbdINNrA (ORCPT ); Thu, 14 Sep 2017 09:47:00 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:36218 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751133AbdINNq7 (ORCPT ); Thu, 14 Sep 2017 09:46:59 -0400 Date: Thu, 14 Sep 2017 14:46:56 +0100 From: Catalin Marinas To: Roy Pledge Cc: leoyang.li@nxp.com, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, arnd@arndb.de, madalin.bucur@nxp.com, linux@armlinux.org.uk, oss@buserror.net Subject: Re: [v4 01/11] soc/fsl/qbman: Use shared-dma-pool for BMan private memory allocations Message-ID: <20170914134656.if6qjfkp4gdtou5u@localhost> References: <1503607075-28970-1-git-send-email-roy.pledge@nxp.com> <1503607075-28970-2-git-send-email-roy.pledge@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1503607075-28970-2-git-send-email-roy.pledge@nxp.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 24, 2017 at 04:37:45PM -0400, Roy Pledge wrote: > --- a/drivers/soc/fsl/qbman/bman_ccsr.c > +++ b/drivers/soc/fsl/qbman/bman_ccsr.c [...] > @@ -201,6 +202,38 @@ static int fsl_bman_probe(struct platform_device *pdev) > return -ENODEV; > } > > + /* > + * If FBPR memory wasn't defined using the qbman compatible string > + * try using the of_reserved_mem_device method > + */ > + if (!fbpr_a) { > + ret = of_reserved_mem_device_init(dev); > + if (ret) { > + dev_err(dev, "of_reserved_mem_device_init() failed 0x%x\n", > + ret); > + return -ENODEV; > + } > + mem_node = of_parse_phandle(dev->of_node, "memory-region", 0); > + if (mem_node) { > + ret = of_property_read_u64(mem_node, "size", &size); > + if (ret) { > + dev_err(dev, "FBPR: of_address_to_resource fails 0x%x\n", > + ret); > + return -ENODEV; > + } > + fbpr_sz = size; > + } else { > + dev_err(dev, "No memory-region found for FBPR\n"); > + return -ENODEV; > + } > + if (!dma_zalloc_coherent(dev, fbpr_sz, &fbpr_a, 0)) { > + dev_err(dev, "Alloc FBPR memory failed\n"); > + return -ENODEV; > + } > + } At a quick look, I think I spotted this pattern a couple of more times in the subsequent patch. Could it be moved to a common function? -- Catalin