From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755355AbcJEVtt (ORCPT ); Wed, 5 Oct 2016 17:49:49 -0400 Received: from mail.kmu-office.ch ([178.209.48.109]:59266 "EHLO mail.kmu-office.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751128AbcJEVrY (ORCPT ); Wed, 5 Oct 2016 17:47:24 -0400 From: Stefan Agner To: meng.yi@nxp.com, dri-devel@lists.freedesktop.org Cc: alison.wang@freescale.com, jianwei.wang.chn@gmail.com, linux-kernel@vger.kernel.org, Stefan Agner Subject: [PATCH v2 1/5] drm/fsl-dcu: enable TCON bypass mode by default Date: Wed, 5 Oct 2016 14:46:57 -0700 Message-Id: <20161005214703.1604-2-stefan@agner.ch> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20161005214703.1604-1-stefan@agner.ch> References: <20161005214703.1604-1-stefan@agner.ch> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Do not use encoder disable/enable callbacks to control bypass mode as this seems to mess with the signals not liked by displays. This also makes more sense since the encoder is already defined to be parallel RGB/LVDS at creation time. Signed-off-by: Stefan Agner --- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 1 + drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 38 ++++--------------------------- 2 files changed, 5 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 0884c45..68db834 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -273,6 +273,7 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) goto disable_dcu_clk; } + fsl_tcon_bypass_enable(fsl_dev->tcon); fsl_dcu_drm_init_planes(fsl_dev->drm); drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 26edcc8..ec88719 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -20,38 +20,6 @@ #include "fsl_dcu_drm_drv.h" #include "fsl_tcon.h" -static int -fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, - struct drm_crtc_state *crtc_state, - struct drm_connector_state *conn_state) -{ - return 0; -} - -static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_disable(fsl_dev->tcon); -} - -static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_enable(fsl_dev->tcon); -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .atomic_check = fsl_dcu_drm_encoder_atomic_check, - .disable = fsl_dcu_drm_encoder_disable, - .enable = fsl_dcu_drm_encoder_enable, -}; - static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); @@ -68,13 +36,15 @@ int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, int ret; encoder->possible_crtcs = 1; + + /* Use bypass mode for parallel RGB/LVDS encoder */ + fsl_tcon_bypass_enable(fsl_dev->tcon); + ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs, DRM_MODE_ENCODER_LVDS, NULL); if (ret < 0) return ret; - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - return 0; } -- 2.10.0