From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932495AbcEaNh7 (ORCPT ); Tue, 31 May 2016 09:37:59 -0400 Received: from lucky1.263xmail.com ([211.157.147.135]:48871 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754045AbcEaNhy (ORCPT ); Tue, 31 May 2016 09:37:54 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: ykk@rock-chips.com X-FST-TO: yzq@rock-chips.com X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <47d2fa3fd227009bbd00a3ad7d44ec3d> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Yakir Yang To: Mark Yao , Inki Dae , Heiko Stuebner , tfiga@chromium.org, Jingoo Han Cc: David Airlie , daniel.vetter@ffwll.ch, Thierry Reding , dianders@chromium.org, Krzysztof Kozlowski , emil.l.velikov@gmail.com, Dan Carpenter , Yakir Yang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: [RFC PATCH v1 0/2] Date: Tue, 31 May 2016 21:37:36 +0800 Message-Id: <1464701856-8695-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The full name of PSR is Panel Self Refresh, panel device could refresh itself with the hardware framebuffer in panel, this would make a lots of sense to save the power consumption. For example, when desktop haven't change the context for a long time, then we could refresh the data to the hardware framebuffer of panel, and then let panel enter into PSR mode. After that system could poweroff the LCDC controller and eDP controller, just let panel refresh the screen by itself. It's hard to decide when panel should enter into PSR or exit from PSR, in this time I chose to let the drm_vblank enable/disable event driver the PSR. This thread is based on Mark's RK3399 VOP thread[0] and my RK3399 eDP thread[1]. [0]: https://patchwork.kernel.org/patch/8886041/ [1]: https://patchwork.kernel.org/patch/9132713/ - Yakir Thanks, Yakir Yang (2): drm/rockchip: add a notify event about vblank enable/disable drm/rockchip: analogix: add eDP PSR function drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 69 ++++++++++++++ drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 5 + drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 54 +++++++++++ drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h | 28 ++++++ drivers/gpu/drm/rockchip/Makefile | 2 +- drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 65 +++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_notify.c | 105 +++++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_notify.h | 33 +++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 96 +++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 3 + drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 2 + include/drm/bridge/analogix_dp.h | 3 + 12 files changed, 464 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_notify.c create mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_notify.h -- 1.9.1