From patchwork Tue Jul 30 18:26:16 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Etheridge, Darren" X-Patchwork-Id: 2835837 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A6D76C0319 for ; Tue, 30 Jul 2013 18:29:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 840AB2015A for ; Tue, 30 Jul 2013 18:29:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B1D12010A for ; Tue, 30 Jul 2013 18:29:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756864Ab3G3S3W (ORCPT ); Tue, 30 Jul 2013 14:29:22 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:58755 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756878Ab3G3S3W (ORCPT ); Tue, 30 Jul 2013 14:29:22 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r6UITK82014336; Tue, 30 Jul 2013 13:29:20 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r6UITK9k019988; Tue, 30 Jul 2013 13:29:20 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.2.342.3; Tue, 30 Jul 2013 13:29:20 -0500 Received: from localhost.localdomain (sdit-build03.sc.ti.com [128.247.24.118]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r6UITDmt017086; Tue, 30 Jul 2013 13:29:20 -0500 From: Darren Etheridge To: , , , CC: Subject: [PATCH v2 09/24] video: da8xx-fb: report correct pixclock Date: Tue, 30 Jul 2013 13:26:16 -0500 Message-ID: <1375208791-15781-10-git-send-email-detheridge@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1375208791-15781-1-git-send-email-detheridge@ti.com> References: <1375208791-15781-1-git-send-email-detheridge@ti.com> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-8.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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: Afzal Mohammed Update "var" pixclock with the value that is configurable in hardware. This lets user know the actual pixclock. Signed-off-by: Afzal Mohammed Signed-off-by: Darren Etheridge --- drivers/video/da8xx-fb.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 7db1097..8d73730 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -686,6 +686,15 @@ static inline unsigned da8xx_fb_calc_clk_divider(struct da8xx_fb_par *par, return par->lcd_fck_rate / (PICOS2KHZ(pixclock) * 1000); } +static inline unsigned da8xx_fb_round_clk(struct da8xx_fb_par *par, + unsigned pixclock) +{ + unsigned div; + + div = da8xx_fb_calc_clk_divider(par, pixclock); + return KHZ2PICOS(par->lcd_fck_rate / (1000 * div)); +} + static inline void da8xx_fb_config_clk_divider(unsigned div) { /* Configure the LCD clock divisor. */ @@ -962,6 +971,8 @@ static int fb_check_var(struct fb_var_screeninfo *var, if (var->yres + var->yoffset > var->yres_virtual) var->yoffset = var->yres_virtual - var->yres; + var->pixclock = da8xx_fb_round_clk(par, var->pixclock); + return err; }