From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751944AbdITW7w (ORCPT ); Wed, 20 Sep 2017 18:59:52 -0400 Received: from anholt.net ([50.246.234.109]:35140 "EHLO anholt.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751647AbdITW7j (ORCPT ); Wed, 20 Sep 2017 18:59:39 -0400 From: Eric Anholt To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, Eric Anholt , Boris Brezillon , Hans Verkuil Subject: [PATCH 2/2] drm/vc4: Update kerneldoc about CEC and power management Date: Wed, 20 Sep 2017 15:59:35 -0700 Message-Id: <20170920225935.14566-2-eric@anholt.net> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170920225935.14566-1-eric@anholt.net> References: <20170920225935.14566-1-eric@anholt.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Boris had added full power management, and then Hans partially removed it to enable CEC, so update the docs about both. Cc: Boris Brezillon Cc: Hans Verkuil Signed-off-by: Eric Anholt --- drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 65826a4f208e..ce18384c6be3 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -33,13 +33,9 @@ * interconnect) bus to the encoder side for insertion into the video * blank regions. * - * The driver's HDMI encoder does not yet support power management. - * The HDMI encoder's power domain and the HSM/pixel clocks are kept - * continuously running, and only the HDMI logic and packet ram are - * powered off/on at disable/enable time. - * - * The driver does not yet support CEC control, though the HDMI - * encoder block has CEC support. + * Note that HDMI CEC requires that the HSM clock be running even when + * not scanning out, so that input can be processed. The PHY is still + * powered down when not scanning out, though. */ #include -- 2.14.1