From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752899AbbDCUju (ORCPT ); Fri, 3 Apr 2015 16:39:50 -0400 Received: from p3plsmtpa08-09.prod.phx3.secureserver.net ([173.201.193.110]:54762 "EHLO p3plsmtpa08-09.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752142AbbDCUjp (ORCPT ); Fri, 3 Apr 2015 16:39:45 -0400 From: Aaron Brice To: broonie@kernel.org Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, stefan@agner.ch, devicetree@vger.kernel.org Subject: [PATCH v3 0/3] spi: fsl-dspi (vf610) clock fixes Date: Fri, 3 Apr 2015 13:39:28 -0700 Message-Id: <1428093571-20407-1-git-send-email-aaron.brice@datasoft.com> X-Mailer: git-send-email 2.1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We were having intermittent problems writing to SRAM chip on SPI bus on vf610 SoM. Added support for CS setup and hold times to meet the SRAM spec. In the process noticed that the baud rate was a little high. Changes since v2: * Incorporate fixes per Stefen Agner review, namely moved hard-coded 50ns delays to device tree properties * Fix for baud rate scale value remainders, reported by Andy Shevchenko Changes since v1: * More detail in commit message for clock rate fix Aaron Brice (3): spi: fsl-dspi: Fix clock rate scale values devicetree: spi: fsl-dspi: Add cs-sck delays spi: fsl-dspi: Add ~50ns delay between cs and sck .../devicetree/bindings/spi/spi-fsl-dspi.txt | 8 ++ drivers/spi/spi-fsl-dspi.c | 97 ++++++++++++++++++---- 2 files changed, 89 insertions(+), 16 deletions(-) -- 2.1.0