From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933644AbcIALZS (ORCPT ); Thu, 1 Sep 2016 07:25:18 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:36971 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933479AbcIALYX (ORCPT ); Thu, 1 Sep 2016 07:24:23 -0400 From: Peter Ujfalusi To: , , CC: , , Subject: [PATCH 23/26] drm/omap: panel-tpo-td043mtea1: Add note for incorrect sync drive edge Date: Thu, 1 Sep 2016 14:23:17 +0300 Message-ID: <20160901112320.15246-24-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160901112320.15246-1-peter.ujfalusi@ti.com> References: <20160901112320.15246-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org According to the datasheet of the panel, both data, DEN and sync signals are expected to be driven on the falling edge of the DOTCLK. Signed-off-by: Peter Ujfalusi --- drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c index f78102aab2e6..0787dba44faa 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c @@ -89,6 +89,10 @@ static const struct videomode tpo_td043_vm = { .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_SYNC_POSEDGE | DISPLAY_FLAGS_PIXDATA_NEGEDGE, + /* + * Note: According to the panel documentation: + * SYNC needs to be driven on the FALLING edge + */ }; #define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev) -- 2.9.3