From patchwork Mon Aug 5 22:02:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Etheridge, Darren" X-Patchwork-Id: 2839048 Return-Path: X-Original-To: patchwork-linux-fbdev@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 BF2559F3B9 for ; Mon, 5 Aug 2013 22:06:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AC19620455 for ; Mon, 5 Aug 2013 22:06:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0FA2720452 for ; Mon, 5 Aug 2013 22:06:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754581Ab3HEWGB (ORCPT ); Mon, 5 Aug 2013 18:06:01 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:58581 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755195Ab3HEWF5 (ORCPT ); Mon, 5 Aug 2013 18:05:57 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id r75M5pVV011415; Mon, 5 Aug 2013 17:05:51 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r75M5pUN031707; Mon, 5 Aug 2013 17:05:51 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.2.342.3; Mon, 5 Aug 2013 17:05:51 -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 r75M5lDL024475; Mon, 5 Aug 2013 17:05:51 -0500 From: Darren Etheridge To: , , , , CC: Subject: [PATCH v3 09/20] video: da8xx-fb: report correct pixclock Date: Mon, 5 Aug 2013 17:02:28 -0500 Message-ID: <1375740159-1045-10-git-send-email-detheridge@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1375740159-1045-1-git-send-email-detheridge@ti.com> References: <1375740159-1045-1-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=-6.9 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; }