From patchwork Wed Sep 17 20:45:27 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 4926851 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B77BE9F502 for ; Wed, 17 Sep 2014 20:44:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A45A6200E8 for ; Wed, 17 Sep 2014 20:46:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9E5A220122 for ; Wed, 17 Sep 2014 20:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756386AbaIQUqA (ORCPT ); Wed, 17 Sep 2014 16:46:00 -0400 Received: from nblzone-211-213.nblnetworks.fi ([83.145.211.213]:55057 "EHLO hillosipuli.retiisi.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756245AbaIQUpc (ORCPT ); Wed, 17 Sep 2014 16:45:32 -0400 Received: from lanttu.localdomain (salottisipuli.retiisi.org.uk [IPv6:2001:1bc8:102:7fc9::83:2]) by hillosipuli.retiisi.org.uk (Postfix) with ESMTP id 1E0F2600A1 for ; Wed, 17 Sep 2014 23:45:30 +0300 (EEST) From: Sakari Ailus To: linux-media@vger.kernel.org Subject: [PATCH 03/17] smiapp-pll: Separate bounds checking into a separate function Date: Wed, 17 Sep 2014 23:45:27 +0300 Message-Id: <1410986741-6801-4-git-send-email-sakari.ailus@iki.fi> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1410986741-6801-1-git-send-email-sakari.ailus@iki.fi> References: <1410986741-6801-1-git-send-email-sakari.ailus@iki.fi> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sakari Ailus Enough work for this function already. Signed-off-by: Sakari Ailus --- drivers/media/i2c/smiapp-pll.c | 110 +++++++++++++++++++++------------------- 1 file changed, 59 insertions(+), 51 deletions(-) diff --git a/drivers/media/i2c/smiapp-pll.c b/drivers/media/i2c/smiapp-pll.c index d14af5c..bde8eb8 100644 --- a/drivers/media/i2c/smiapp-pll.c +++ b/drivers/media/i2c/smiapp-pll.c @@ -87,6 +87,64 @@ static void print_pll(struct device *dev, struct smiapp_pll *pll) dev_dbg(dev, "vt_pix_clk_freq_hz \t%u\n", pll->vt_pix_clk_freq_hz); } +static int check_all_bounds(struct device *dev, + const struct smiapp_pll_limits *limits, + struct smiapp_pll *pll) +{ + int rval; + + rval = bounds_check(dev, pll->pll_ip_clk_freq_hz, + limits->min_pll_ip_freq_hz, + limits->max_pll_ip_freq_hz, + "pll_ip_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->pll_multiplier, + limits->min_pll_multiplier, limits->max_pll_multiplier, + "pll_multiplier"); + if (!rval) + rval = bounds_check( + dev, pll->pll_op_clk_freq_hz, + limits->min_pll_op_freq_hz, limits->max_pll_op_freq_hz, + "pll_op_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->op_sys_clk_div, + limits->op.min_sys_clk_div, limits->op.max_sys_clk_div, + "op_sys_clk_div"); + if (!rval) + rval = bounds_check( + dev, pll->op_pix_clk_div, + limits->op.min_pix_clk_div, limits->op.max_pix_clk_div, + "op_pix_clk_div"); + if (!rval) + rval = bounds_check( + dev, pll->op_sys_clk_freq_hz, + limits->op.min_sys_clk_freq_hz, + limits->op.max_sys_clk_freq_hz, + "op_sys_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->op_pix_clk_freq_hz, + limits->op.min_pix_clk_freq_hz, + limits->op.max_pix_clk_freq_hz, + "op_pix_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->vt_sys_clk_freq_hz, + limits->vt.min_sys_clk_freq_hz, + limits->vt.max_sys_clk_freq_hz, + "vt_sys_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->vt_pix_clk_freq_hz, + limits->vt.min_pix_clk_freq_hz, + limits->vt.max_pix_clk_freq_hz, + "vt_pix_clk_freq_hz"); + + return rval; +} + /* * Heuristically guess the PLL tree for a given common multiplier and * divisor. Begin with the operational timing and continue to video @@ -117,7 +175,6 @@ static int __smiapp_pll_calculate(struct device *dev, uint32_t min_vt_div, max_vt_div, vt_div; uint32_t min_sys_div, max_sys_div; unsigned int i; - int rval; /* * Get pre_pll_clk_div so that our pll_op_clk_freq_hz won't be @@ -323,56 +380,7 @@ static int __smiapp_pll_calculate(struct device *dev, pll->pixel_rate_csi = pll->op_pix_clk_freq_hz * lane_op_clock_ratio; - rval = bounds_check(dev, pll->pll_ip_clk_freq_hz, - limits->min_pll_ip_freq_hz, - limits->max_pll_ip_freq_hz, - "pll_ip_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->pll_multiplier, - limits->min_pll_multiplier, limits->max_pll_multiplier, - "pll_multiplier"); - if (!rval) - rval = bounds_check( - dev, pll->pll_op_clk_freq_hz, - limits->min_pll_op_freq_hz, limits->max_pll_op_freq_hz, - "pll_op_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->op_sys_clk_div, - limits->op.min_sys_clk_div, limits->op.max_sys_clk_div, - "op_sys_clk_div"); - if (!rval) - rval = bounds_check( - dev, pll->op_pix_clk_div, - limits->op.min_pix_clk_div, limits->op.max_pix_clk_div, - "op_pix_clk_div"); - if (!rval) - rval = bounds_check( - dev, pll->op_sys_clk_freq_hz, - limits->op.min_sys_clk_freq_hz, - limits->op.max_sys_clk_freq_hz, - "op_sys_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->op_pix_clk_freq_hz, - limits->op.min_pix_clk_freq_hz, - limits->op.max_pix_clk_freq_hz, - "op_pix_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->vt_sys_clk_freq_hz, - limits->vt.min_sys_clk_freq_hz, - limits->vt.max_sys_clk_freq_hz, - "vt_sys_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->vt_pix_clk_freq_hz, - limits->vt.min_pix_clk_freq_hz, - limits->vt.max_pix_clk_freq_hz, - "vt_pix_clk_freq_hz"); - - return rval; + return check_all_bounds(dev, limits, pll); } int smiapp_pll_calculate(struct device *dev,