From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934621AbeB1Ryq (ORCPT ); Wed, 28 Feb 2018 12:54:46 -0500 Received: from mail.micronovasrl.com ([212.103.203.10]:39788 "EHLO mail.micronovasrl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934187AbeB1Ryo (ORCPT ); Wed, 28 Feb 2018 12:54:44 -0500 Authentication-Results: mail.micronovasrl.com (amavisd-new); dkim=pass reason="pass (just generated, assumed good)" header.d=micronovasrl.com X-Spam-Flag: NO X-Spam-Score: -2.9 From: Giulio Benetti To: Maxime Ripard Cc: David Airlie , Chen-Yu Tsai , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Giulio Benetti Subject: [PATCH 1/2] drm/sun4i: increase lvds dclk max divisor Date: Wed, 28 Feb 2018 18:53:51 +0100 Message-Id: <1519840432-61489-1-git-send-email-giulio.benetti@micronovasrl.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At the moment both min and max dclk div are set to 7. This doesn't allow to have lower frequencies. Increase dclk_max_div to 18 to achieve 30Mhz. Signed-off-by: Giulio Benetti --- drivers/gpu/drm/sun4i/sun4i_tcon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index 029d2ce..bb35f41 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -278,7 +278,7 @@ static void sun4i_tcon0_mode_set_lvds(struct sun4i_tcon *tcon, u32 reg, val = 0; tcon->dclk_min_div = 7; - tcon->dclk_max_div = 7; + tcon->dclk_max_div = 18; sun4i_tcon0_mode_set_common(tcon, mode); /* Adjust clock delay */ -- 2.7.4