From patchwork Fri Dec 7 11:44:25 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 1850301 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 9BF34DF2EE for ; Fri, 7 Dec 2012 11:45:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932128Ab2LGLod (ORCPT ); Fri, 7 Dec 2012 06:44:33 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:42688 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756080Ab2LGLoa (ORCPT ); Fri, 7 Dec 2012 06:44:30 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id qB7BiQJu017715; Fri, 7 Dec 2012 05:44:27 -0600 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id qB7BiQCI012003; Fri, 7 Dec 2012 17:14:26 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Fri, 7 Dec 2012 17:14:26 +0530 Received: from psplinux063.india.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id qB7BiPI0021990; Fri, 7 Dec 2012 17:14:25 +0530 From: Afzal Mohammed To: Florian Tobias Schandinat , Tomi Valkeinen CC: Vaibhav Hiremath , Sekhar Nori , , , Afzal Mohammed Subject: [PATCH 09/10] video: da8xx-fb: report correct pixclock Date: Fri, 7 Dec 2012 17:14:25 +0530 Message-ID: <1936484ebde94f0c18462f2eec2dab05da087b27.1354874432.git.afzal@ti.com> X-Mailer: git-send-email 1.7.12 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Update "var" pixclock with the value that is configurable in hardware. This lets user know the actual pixclock. Signed-off-by: Afzal Mohammed --- drivers/video/da8xx-fb.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 663b3c5..c7393f1 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -690,6 +690,15 @@ 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. */ @@ -966,6 +975,8 @@ 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; }