From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Thu, 22 Sep 2016 00:03:40 +0300 Subject: [PATCH] drm/sun4i: rgb: Enable panel after controller In-Reply-To: <20160921130304.3486-1-net147@gmail.com> References: <20160921130304.3486-1-net147@gmail.com> Message-ID: <20160921210340.GI8719@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On Wed, Sep 21, 2016 at 11:03:04PM +1000, Jonathan Liu wrote: > The panel should be enabled after the controller so that the panel > prepare/enable delays are properly taken into account. Similarly, the > panel should be disabled before the controller so that the panel > unprepare/disable delays are properly taken into account. > > This is useful for avoiding visual glitches. This is not really taking any delays into account, especially since drm_panel_enable and prepare are suppose to block until their operation is complete. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: not available URL: