From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753310AbbC3JCi (ORCPT ); Mon, 30 Mar 2015 05:02:38 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:37076 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752980AbbC3JCe (ORCPT ); Mon, 30 Mar 2015 05:02:34 -0400 Date: Mon, 30 Mar 2015 10:02:16 +0100 From: Lee Jones To: Holger Dengler Cc: linux-kernel@vger.kernel.org, Peter Mahler , Juergen Bubeck , Benedikt Spranger , Samuel Ortiz Subject: Re: [PATCH 09/11] mfd: flexcard: add DMA ringbuffer demux driver Message-ID: <20150330090216.GT457@x1> References: <1427277120-16924-1-git-send-email-dengler@linutronix.de> <1427277120-16924-10-git-send-email-dengler@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1427277120-16924-10-git-send-email-dengler@linutronix.de> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 25 Mar 2015, Holger Dengler wrote: > From: Benedikt Spranger > > The Flexcard interface design split packet receive and transmit. All > received packets and card status information are multiplexed with a > Flexcard specific protocol and handled through a DMA capable ringbuffer. > The TX path has to poke each available component separate. > > Add a Flexcard DMA ringbuffer driver and packet demultiplexer. These are not MFD devices. > Signed-off-by: Holger Dengler > Signed-off-by: Benedikt Spranger > cc: Samuel Ortiz > cc: Lee Jones > --- > drivers/mfd/Kconfig | 9 ++ > drivers/mfd/flexcard/Makefile | 3 + > drivers/mfd/flexcard/dma.c | 286 ++++++++++++++++++++++++++++++++++++ drivers/dma? > drivers/mfd/flexcard/flexcard-dma.h | 207 ++++++++++++++++++++++++++ > drivers/mfd/flexcard/parser.c | 193 ++++++++++++++++++++++++ drivers/pci? > include/linux/mfd/flexcard.h | 5 + > 6 files changed, 703 insertions(+) > create mode 100644 drivers/mfd/flexcard/dma.c > create mode 100644 drivers/mfd/flexcard/flexcard-dma.h > create mode 100644 drivers/mfd/flexcard/parser.c -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog