From patchwork Wed Aug 9 19:48:53 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jim.bride@linux.intel.com X-Patchwork-Id: 9891845 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A386A60384 for ; Wed, 9 Aug 2017 19:51:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 949AE28A96 for ; Wed, 9 Aug 2017 19:51:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8936128AAC; Wed, 9 Aug 2017 19:51:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EEDE628AA8 for ; Wed, 9 Aug 2017 19:51:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ACE006E3CD; Wed, 9 Aug 2017 19:51:37 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1AEA16E3CD for ; Wed, 9 Aug 2017 19:51:35 +0000 (UTC) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Aug 2017 12:51:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,349,1498546800"; d="scan'208";a="117368408" Received: from shiv.jf.intel.com ([10.54.75.141]) by orsmga004.jf.intel.com with ESMTP; 09 Aug 2017 12:51:35 -0700 From: Jim Bride To: intel-gfx@lists.freedesktop.org Date: Wed, 9 Aug 2017 12:48:53 -0700 Message-Id: <1502308133-26892-1-git-send-email-jim.bride@linux.intel.com> X-Mailer: git-send-email 2.7.4 Cc: Paulo Zanoni , Jani Nikula , Rodrigo Vivi Subject: [Intel-gfx] [PATCH v6] drm/i915/edp: Allow alternate fixed mode for eDP if available. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Some fixed resolution panels actually support more than one mode, with the only thing different being the refresh rate. Having this alternate mode available to us is desirable, because it allows us to test PSR on panels whose setup time at the preferred mode is too long. With this patch we allow the use of the alternate mode if it's available and it was specifically requested. v2 and v3: Rebase v4: * Fix up some leaky mode stuff (Chris) * Rebase v5: * Fix a NULL pointer derefrence (David Weinehall) v6: * Whitespace / spelling / checkpatch clean-up; no functional change. (David) * Rebase Cc: David Weinehall Cc: Rodrigo Vivi Cc: Paulo Zanoni Cc: Jani Nikula Cc: Chris Wilson Reviewed-by: David Weinehall Signed-off-by: Jim Bride --- drivers/gpu/drm/i915/intel_dp.c | 38 +++++++++++++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_drv.h | 2 ++ drivers/gpu/drm/i915/intel_dsi.c | 2 +- drivers/gpu/drm/i915/intel_dvo.c | 2 +- drivers/gpu/drm/i915/intel_lvds.c | 3 ++- drivers/gpu/drm/i915/intel_panel.c | 6 ++++++ 6 files changed, 45 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 76c8a0b..576b5af 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1606,6 +1606,23 @@ static int intel_dp_compute_bpp(struct intel_dp *intel_dp, return bpp; } +static bool intel_edp_compare_alt_mode(struct drm_display_mode *m1, + struct drm_display_mode *m2) +{ + bool bres = false; + + if (m1 && m2) + bres = (m1->hdisplay == m2->hdisplay && + m1->hsync_start == m2->hsync_start && + m1->hsync_end == m2->hsync_end && + m1->htotal == m2->htotal && + m1->vdisplay == m2->vdisplay && + m1->vsync_start == m2->vsync_start && + m1->vsync_end == m2->vsync_end && + m1->vtotal == m2->vtotal); + return bres; +} + bool intel_dp_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, @@ -1652,8 +1669,16 @@ intel_dp_compute_config(struct intel_encoder *encoder, pipe_config->has_audio = intel_conn_state->force_audio == HDMI_AUDIO_ON; if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) { - intel_fixed_panel_mode(intel_connector->panel.fixed_mode, - adjusted_mode); + struct drm_display_mode *panel_mode = + intel_connector->panel.alt_fixed_mode; + struct drm_display_mode *req_mode = &pipe_config->base.mode; + + if (!intel_edp_compare_alt_mode(req_mode, panel_mode)) + panel_mode = intel_connector->panel.fixed_mode; + + drm_mode_debug_printmodeline(panel_mode); + + intel_fixed_panel_mode(panel_mode, adjusted_mode); if (INTEL_GEN(dev_priv) >= 9) { int ret; @@ -5780,6 +5805,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct drm_display_mode *fixed_mode = NULL; + struct drm_display_mode *alt_fixed_mode = NULL; struct drm_display_mode *downclock_mode = NULL; bool has_dpcd; struct drm_display_mode *scan; @@ -5835,13 +5861,14 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, } intel_connector->edid = edid; - /* prefer fixed mode from EDID if available */ + /* prefer fixed mode from EDID if available, save an alt mode also */ list_for_each_entry(scan, &connector->probed_modes, head) { if ((scan->type & DRM_MODE_TYPE_PREFERRED)) { fixed_mode = drm_mode_duplicate(dev, scan); downclock_mode = intel_dp_drrs_init( intel_connector, fixed_mode); - break; + } else if (!alt_fixed_mode) { + alt_fixed_mode = drm_mode_duplicate(dev, scan); } } @@ -5878,7 +5905,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, pipe_name(pipe)); } - intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); + intel_panel_init(&intel_connector->panel, fixed_mode, alt_fixed_mode, + downclock_mode); intel_connector->panel.backlight.power = intel_edp_backlight_power; intel_panel_setup_backlight(connector, pipe); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index f91de9c..b3fcbb9 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -265,6 +265,7 @@ struct intel_encoder { struct intel_panel { struct drm_display_mode *fixed_mode; + struct drm_display_mode *alt_fixed_mode; struct drm_display_mode *downclock_mode; /* backlight */ @@ -1679,6 +1680,7 @@ void intel_overlay_reset(struct drm_i915_private *dev_priv); /* intel_panel.c */ int intel_panel_init(struct intel_panel *panel, struct drm_display_mode *fixed_mode, + struct drm_display_mode *alt_fixed_mode, struct drm_display_mode *downclock_mode); void intel_panel_fini(struct intel_panel *panel); void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode, diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index b0b3adf..f0c11ae 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -1849,7 +1849,7 @@ void intel_dsi_init(struct drm_i915_private *dev_priv) connector->display_info.width_mm = fixed_mode->width_mm; connector->display_info.height_mm = fixed_mode->height_mm; - intel_panel_init(&intel_connector->panel, fixed_mode, NULL); + intel_panel_init(&intel_connector->panel, fixed_mode, NULL, NULL); intel_panel_setup_backlight(connector, INVALID_PIPE); intel_dsi_add_properties(intel_connector); diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index baf369d..c0a0272 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -552,7 +552,7 @@ void intel_dvo_init(struct drm_i915_private *dev_priv) */ intel_panel_init(&intel_connector->panel, intel_dvo_get_current_mode(connector), - NULL); + NULL, NULL); intel_dvo->panel_wants_dither = true; } diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 61d5579..8e21577 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -1138,7 +1138,8 @@ void intel_lvds_init(struct drm_i915_private *dev_priv) out: mutex_unlock(&dev->mode_config.mutex); - intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); + intel_panel_init(&intel_connector->panel, fixed_mode, NULL, + downclock_mode); intel_panel_setup_backlight(connector, INVALID_PIPE); lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder); diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 88018fc..a17b1de 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1920,11 +1920,13 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel) int intel_panel_init(struct intel_panel *panel, struct drm_display_mode *fixed_mode, + struct drm_display_mode *alt_fixed_mode, struct drm_display_mode *downclock_mode) { intel_panel_init_backlight_funcs(panel); panel->fixed_mode = fixed_mode; + panel->alt_fixed_mode = alt_fixed_mode; panel->downclock_mode = downclock_mode; return 0; @@ -1938,6 +1940,10 @@ void intel_panel_fini(struct intel_panel *panel) if (panel->fixed_mode) drm_mode_destroy(intel_connector->base.dev, panel->fixed_mode); + if (panel->alt_fixed_mode) + drm_mode_destroy(intel_connector->base.dev, + panel->alt_fixed_mode); + if (panel->downclock_mode) drm_mode_destroy(intel_connector->base.dev, panel->downclock_mode);