From patchwork Mon Jan 7 05:06:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 1939131 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 51DE03FED4 for ; Mon, 7 Jan 2013 05:06:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751063Ab3AGFGC (ORCPT ); Mon, 7 Jan 2013 00:06:02 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:40466 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751560Ab3AGFFR (ORCPT ); Mon, 7 Jan 2013 00:05:17 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r07559Ks000878; Sun, 6 Jan 2013 23:05:10 -0600 Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r07558HH022701; Mon, 7 Jan 2013 10:35:08 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Mon, 7 Jan 2013 10:35:08 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r07558B4027346; Mon, 7 Jan 2013 10:35:08 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id 8AABD158005; Mon, 7 Jan 2013 10:35:08 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r07558R24263; Mon, 7 Jan 2013 10:35:08 +0530 (IST) From: Afzal Mohammed To: Florian Tobias Schandinat , Tomi Valkeinen , Grant Likely , Rob Herring , , , , , , Subject: [PATCH v2 09/10] video: da8xx-fb: report correct pixclock Date: Mon, 7 Jan 2013 10:36:03 +0530 Message-ID: <87e8130658ff6fb27afce873b32c44543583cc73.1357303978.git.afzal@ti.com> X-Mailer: git-send-email 1.7.9.5 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; }