From patchwork Thu Jun 16 17:09:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 12884622 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6839CC43334 for ; Thu, 16 Jun 2022 17:09:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377240AbiFPRJj (ORCPT ); Thu, 16 Jun 2022 13:09:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377172AbiFPRJi (ORCPT ); Thu, 16 Jun 2022 13:09:38 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0397B14014; Thu, 16 Jun 2022 10:09:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1655399377; x=1686935377; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=LQaQSiwhebSxQqJvFYmoXwhnTQgSjco3nqzorZeTalM=; b=QrLX2HCNqcG/j0b4CKx3NI9jALu5pdGMg7N+94XhFjNl+st/Dj67wlXI jzccCvbrB54q+zZAvW/SXbL50j5FrMnGuaNGzVfydsIM+4Ls9X/qBOpcH wMxxZfFky/wrMz0f9SzwLvexQVQZ+rP1lbQgawBkdNINn/hJhr0eXsq2f M=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 16 Jun 2022 10:09:37 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 10:09:37 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 16 Jun 2022 10:09:35 -0700 Received: from khsieh-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 16 Jun 2022 10:09:34 -0700 From: Kuogee Hsieh To: , , , , , , , , , , CC: Kuogee Hsieh , , , , , , Subject: [PATCH v8 1/2] drm/msm/dp: force link training for display resolution change Date: Thu, 16 Jun 2022 10:09:20 -0700 Message-ID: <1655399361-10842-2-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1655399361-10842-1-git-send-email-quic_khsieh@quicinc.com> References: <1655399361-10842-1-git-send-email-quic_khsieh@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Display resolution change is implemented through drm modeset. Older modeset (resolution) has to be disabled first before newer modeset (resolution) can be enabled. Display disable will turn off both pixel clock and main link clock so that main link have to be re-trained during display enable to have new video stream flow again. At current implementation, display enable function manually kicks up irq_hpd_handle which will read panel link status and start link training if link status is not in sync state. However, there is rare case that a particular panel links status keep staying in sync for some period of time after main link had been shut down previously at display disabled. In this case, main link retraining will not be executed by irq_hdp_handle(). Hence video stream of newer display resolution will fail to be transmitted to panel due to main link is not in sync between host and panel. This patch will bypass irq_hpd_handle() in favor of directly call dp_ctrl_on_stream() to always perform link training in regardless of main link status. So that no unexpected exception resolution change failure cases will happen. Also this implementation are more efficient than manual kicking off irq_hpd_handle function. Changes in v2: -- set force_link_train flag on DP only (is_edp == false) Changes in v3: -- revise commit text -- add Fixes tag Changes in v4: -- revise commit text Changes in v5: -- fix spelling at commit text Changes in v6: -- split dp_ctrl_on_stream() for phy test case -- revise commit text for modeset Changes in v7: -- drop 0 assignment at local variable (ret = 0) Changes in v8: -- add patch to remove pixel_rate from dp_ctrl Fixes: 62671d2ef24b ("drm/msm/dp: fixes wrong connection state caused by failure of link train") Signed-off-by: Kuogee Hsieh --- drivers/gpu/drm/msm/dp/dp_ctrl.c | 31 +++++++++++++++++++++++-------- drivers/gpu/drm/msm/dp/dp_ctrl.h | 3 ++- drivers/gpu/drm/msm/dp/dp_display.c | 13 ++++++------- 3 files changed, 31 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index af7a80c..01028b5 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1551,7 +1551,7 @@ static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl) ret = dp_ctrl_on_link(&ctrl->dp_ctrl); if (!ret) - ret = dp_ctrl_on_stream(&ctrl->dp_ctrl); + ret = dp_ctrl_on_stream_phy_test_report(&ctrl->dp_ctrl); else DRM_ERROR("failed to enable DP link controller\n"); @@ -1807,7 +1807,27 @@ static int dp_ctrl_link_retrain(struct dp_ctrl_private *ctrl) return dp_ctrl_setup_main_link(ctrl, &training_step); } -int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl) +int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl) +{ + int ret; + struct dp_ctrl_private *ctrl; + + ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl); + + ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; + + ret = dp_ctrl_enable_stream_clocks(ctrl); + if (ret) { + DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret); + return ret; + } + + dp_ctrl_send_phy_test_pattern(ctrl); + + return 0; +} + +int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train) { int ret = 0; bool mainlink_ready = false; @@ -1843,12 +1863,7 @@ int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl) goto end; } - if (ctrl->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN) { - dp_ctrl_send_phy_test_pattern(ctrl); - return 0; - } - - if (!dp_ctrl_channel_eq_ok(ctrl)) + if (force_link_train || !dp_ctrl_channel_eq_ok(ctrl)) dp_ctrl_link_retrain(ctrl); /* stop txing train pattern to end link training */ diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h index 0745fde..9a39b00 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.h +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h @@ -21,7 +21,8 @@ struct dp_ctrl { }; int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl); -int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl); +int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train); +int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl); int dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl); int dp_ctrl_off_link(struct dp_ctrl *dp_ctrl); int dp_ctrl_off(struct dp_ctrl *dp_ctrl); diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c388323..b6d25ab 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -872,7 +872,7 @@ static int dp_display_enable(struct dp_display_private *dp, u32 data) return 0; } - rc = dp_ctrl_on_stream(dp->ctrl); + rc = dp_ctrl_on_stream(dp->ctrl, data); if (!rc) dp_display->power_on = true; @@ -1654,6 +1654,7 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge) int rc = 0; struct dp_display_private *dp_display; u32 state; + bool force_link_train = false; dp_display = container_of(dp, struct dp_display_private, dp_display); if (!dp_display->dp_mode.drm_mode.clock) { @@ -1688,10 +1689,12 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge) state = dp_display->hpd_state; - if (state == ST_DISPLAY_OFF) + if (state == ST_DISPLAY_OFF) { dp_display_host_phy_init(dp_display); + force_link_train = true; + } - dp_display_enable(dp_display, 0); + dp_display_enable(dp_display, force_link_train); rc = dp_display_post_enable(dp); if (rc) { @@ -1700,10 +1703,6 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge) dp_display_unprepare(dp); } - /* manual kick off plug event to train link */ - if (state == ST_DISPLAY_OFF) - dp_add_event(dp_display, EV_IRQ_HPD_INT, 0, 0); - /* completed connection */ dp_display->hpd_state = ST_CONNECTED; From patchwork Thu Jun 16 17:09:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 12884623 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26C4CCCA480 for ; Thu, 16 Jun 2022 17:09:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377330AbiFPRJk (ORCPT ); Thu, 16 Jun 2022 13:09:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377275AbiFPRJj (ORCPT ); Thu, 16 Jun 2022 13:09:39 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B69AA14014; 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Thu, 16 Jun 2022 10:09:37 -0700 Received: from khsieh-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 16 Jun 2022 10:09:36 -0700 From: Kuogee Hsieh To: , , , , , , , , , , CC: Kuogee Hsieh , , , , , , Subject: [PATCH v8 2/2] drm/msm/dp: clean up pixel_rate from dp_ctrl.c Date: Thu, 16 Jun 2022 10:09:21 -0700 Message-ID: <1655399361-10842-3-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1655399361-10842-1-git-send-email-quic_khsieh@quicinc.com> References: <1655399361-10842-1-git-send-email-quic_khsieh@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org dp_ctrl keep an local cache of pixel_rate which increase confusing in regrading how pixel_rate being used. This patch refer pixel_rate directly from dp_panel to eliminate unnecessary pixel_rate variable from struct dp_ctrl. Changes in v8: -- add this patch to remove pixel_rate from dp_ctrl Signed-off-by: Kuogee Hsieh Reported-by: kernel test robot Reported-by: kernel test robot --- drivers/gpu/drm/msm/dp/dp_ctrl.c | 158 +++++++++++++++++++-------------------- drivers/gpu/drm/msm/dp/dp_ctrl.h | 2 - 2 files changed, 79 insertions(+), 81 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index 01028b5..6fddddd 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1237,8 +1237,6 @@ static int dp_ctrl_link_train_2(struct dp_ctrl_private *ctrl, return -ETIMEDOUT; } -static int dp_ctrl_reinitialize_mainlink(struct dp_ctrl_private *ctrl); - static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl, int *training_step) { @@ -1337,7 +1335,8 @@ static void dp_ctrl_set_clock_rate(struct dp_ctrl_private *ctrl, name, rate); } -static int dp_ctrl_enable_mainlink_clocks(struct dp_ctrl_private *ctrl) +static int dp_ctrl_enable_mainlink_clocks(struct dp_ctrl_private *ctrl, + unsigned long pixel_rate) { int ret = 0; struct dp_io *dp_io = &ctrl->parser->io; @@ -1358,25 +1357,25 @@ static int dp_ctrl_enable_mainlink_clocks(struct dp_ctrl_private *ctrl) if (ret) DRM_ERROR("Unable to start link clocks. ret=%d\n", ret); - drm_dbg_dp(ctrl->drm_dev, "link rate=%d pixel_clk=%d\n", - ctrl->link->link_params.rate, ctrl->dp_ctrl.pixel_rate); + drm_dbg_dp(ctrl->drm_dev, "link rate=%d pixel_clk=%lu\n", + ctrl->link->link_params.rate, pixel_rate); return ret; } -static int dp_ctrl_enable_stream_clocks(struct dp_ctrl_private *ctrl) +static int dp_ctrl_enable_stream_clocks(struct dp_ctrl_private *ctrl, + unsigned long pixel_rate) { - int ret = 0; + int ret; - dp_ctrl_set_clock_rate(ctrl, DP_STREAM_PM, "stream_pixel", - ctrl->dp_ctrl.pixel_rate * 1000); + dp_ctrl_set_clock_rate(ctrl, DP_STREAM_PM, "stream_pixel", pixel_rate * 1000); ret = dp_power_clk_enable(ctrl->power, DP_STREAM_PM, true); if (ret) DRM_ERROR("Unabled to start pixel clocks. ret=%d\n", ret); - drm_dbg_dp(ctrl->drm_dev, "link rate=%d pixel_clk=%d\n", - ctrl->link->link_params.rate, ctrl->dp_ctrl.pixel_rate); + drm_dbg_dp(ctrl->drm_dev, "link rate=%d pixel_clk=%lu\n", + ctrl->link->link_params.rate, pixel_rate); return ret; } @@ -1441,7 +1440,8 @@ static bool dp_ctrl_use_fixed_nvid(struct dp_ctrl_private *ctrl) return false; } -static int dp_ctrl_reinitialize_mainlink(struct dp_ctrl_private *ctrl) +static int dp_ctrl_reinitialize_mainlink(struct dp_ctrl_private *ctrl, + unsigned long pixel_rate) { int ret = 0; struct dp_io *dp_io = &ctrl->parser->io; @@ -1465,7 +1465,7 @@ static int dp_ctrl_reinitialize_mainlink(struct dp_ctrl_private *ctrl) /* hw recommended delay before re-enabling clocks */ msleep(20); - ret = dp_ctrl_enable_mainlink_clocks(ctrl); + ret = dp_ctrl_enable_mainlink_clocks(ctrl, pixel_rate); if (ret) { DRM_ERROR("Failed to enable mainlink clks. ret=%d\n", ret); return ret; @@ -1513,8 +1513,6 @@ static int dp_ctrl_link_maintenance(struct dp_ctrl_private *ctrl) ctrl->link->phy_params.p_level = 0; ctrl->link->phy_params.v_level = 0; - ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; - ret = dp_ctrl_setup_main_link(ctrl, &training_step); if (ret) goto end; @@ -1528,36 +1526,6 @@ static int dp_ctrl_link_maintenance(struct dp_ctrl_private *ctrl) return ret; } -static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl) -{ - int ret = 0; - - if (!ctrl->link->phy_params.phy_test_pattern_sel) { - drm_dbg_dp(ctrl->drm_dev, - "no test pattern selected by sink\n"); - return ret; - } - - /* - * The global reset will need DP link related clocks to be - * running. Add the global reset just before disabling the - * link clocks and core clocks. - */ - ret = dp_ctrl_off(&ctrl->dp_ctrl); - if (ret) { - DRM_ERROR("failed to disable DP controller\n"); - return ret; - } - - ret = dp_ctrl_on_link(&ctrl->dp_ctrl); - if (!ret) - ret = dp_ctrl_on_stream_phy_test_report(&ctrl->dp_ctrl); - else - DRM_ERROR("failed to enable DP link controller\n"); - - return ret; -} - static bool dp_ctrl_send_phy_test_pattern(struct dp_ctrl_private *ctrl) { bool success = false; @@ -1610,6 +1578,56 @@ static bool dp_ctrl_send_phy_test_pattern(struct dp_ctrl_private *ctrl) return success; } +int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl) +{ + int ret = 0; + struct dp_ctrl_private *ctrl; + unsigned long pixel_rate; + + ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl); + + pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; + ret = dp_ctrl_enable_stream_clocks(ctrl, pixel_rate); + if (ret) { + DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret); + return ret; + } + + dp_ctrl_send_phy_test_pattern(ctrl); + + return 0; +} + +static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl) +{ + int ret = 0; + + if (!ctrl->link->phy_params.phy_test_pattern_sel) { + drm_dbg_dp(ctrl->drm_dev, + "no test pattern selected by sink\n"); + return ret; + } + + /* + * The global reset will need DP link related clocks to be + * running. Add the global reset just before disabling the + * link clocks and core clocks. + */ + ret = dp_ctrl_off(&ctrl->dp_ctrl); + if (ret) { + DRM_ERROR("failed to disable DP controller\n"); + return ret; + } + + ret = dp_ctrl_on_link(&ctrl->dp_ctrl); + if (!ret) + ret = dp_ctrl_on_stream_phy_test_report(&ctrl->dp_ctrl); + else + DRM_ERROR("failed to enable DP link controller\n"); + + return ret; +} + void dp_ctrl_handle_sink_request(struct dp_ctrl *dp_ctrl) { struct dp_ctrl_private *ctrl; @@ -1685,6 +1703,7 @@ int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl) u32 const phy_cts_pixel_clk_khz = 148500; u8 link_status[DP_LINK_STATUS_SIZE]; unsigned int training_step; + unsigned long pixel_rate; if (!dp_ctrl) return -EINVAL; @@ -1695,29 +1714,30 @@ int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl) dp_power_clk_enable(ctrl->power, DP_CORE_PM, true); + pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; + if (ctrl->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN) { drm_dbg_dp(ctrl->drm_dev, "using phy test link parameters\n"); - if (!ctrl->panel->dp_mode.drm_mode.clock) - ctrl->dp_ctrl.pixel_rate = phy_cts_pixel_clk_khz; + if (!pixel_rate) + pixel_rate = phy_cts_pixel_clk_khz; } else { ctrl->link->link_params.rate = rate; ctrl->link->link_params.num_lanes = ctrl->panel->link_info.num_lanes; - ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; } - drm_dbg_dp(ctrl->drm_dev, "rate=%d, num_lanes=%d, pixel_rate=%d\n", + drm_dbg_dp(ctrl->drm_dev, "rate=%d, num_lanes=%d, pixel_rate=%lu\n", ctrl->link->link_params.rate, ctrl->link->link_params.num_lanes, - ctrl->dp_ctrl.pixel_rate); + pixel_rate); - rc = dp_ctrl_enable_mainlink_clocks(ctrl); + rc = dp_ctrl_enable_mainlink_clocks(ctrl, pixel_rate); if (rc) return rc; while (--link_train_max_retries) { - rc = dp_ctrl_reinitialize_mainlink(ctrl); + rc = dp_ctrl_reinitialize_mainlink(ctrl, pixel_rate); if (rc) { DRM_ERROR("Failed to reinitialize mainlink. rc=%d\n", rc); @@ -1807,31 +1827,12 @@ static int dp_ctrl_link_retrain(struct dp_ctrl_private *ctrl) return dp_ctrl_setup_main_link(ctrl, &training_step); } -int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl) -{ - int ret; - struct dp_ctrl_private *ctrl; - - ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl); - - ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; - - ret = dp_ctrl_enable_stream_clocks(ctrl); - if (ret) { - DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret); - return ret; - } - - dp_ctrl_send_phy_test_pattern(ctrl); - - return 0; -} - int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train) { int ret = 0; bool mainlink_ready = false; struct dp_ctrl_private *ctrl; + unsigned long pixel_rate; unsigned long pixel_rate_orig; if (!dp_ctrl) @@ -1839,25 +1840,24 @@ int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train) ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl); - ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; + pixel_rate = pixel_rate_orig = ctrl->panel->dp_mode.drm_mode.clock; - pixel_rate_orig = ctrl->dp_ctrl.pixel_rate; if (dp_ctrl->wide_bus_en) - ctrl->dp_ctrl.pixel_rate >>= 1; + pixel_rate >>= 1; - drm_dbg_dp(ctrl->drm_dev, "rate=%d, num_lanes=%d, pixel_rate=%d\n", + drm_dbg_dp(ctrl->drm_dev, "rate=%d, num_lanes=%d, pixel_rate=%lu\n", ctrl->link->link_params.rate, - ctrl->link->link_params.num_lanes, ctrl->dp_ctrl.pixel_rate); + ctrl->link->link_params.num_lanes, pixel_rate); if (!dp_power_clk_status(ctrl->power, DP_CTRL_PM)) { /* link clk is off */ - ret = dp_ctrl_enable_mainlink_clocks(ctrl); + ret = dp_ctrl_enable_mainlink_clocks(ctrl, pixel_rate); if (ret) { DRM_ERROR("Failed to start link clocks. ret=%d\n", ret); goto end; } } - ret = dp_ctrl_enable_stream_clocks(ctrl); + ret = dp_ctrl_enable_stream_clocks(ctrl, pixel_rate); if (ret) { DRM_ERROR("Failed to start pixel clocks. ret=%d\n", ret); goto end; diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h index 9a39b00..9f29734 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.h +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h @@ -16,13 +16,11 @@ struct dp_ctrl { bool orientation; atomic_t aborted; - u32 pixel_rate; bool wide_bus_en; }; int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl); int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train); -int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl); int dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl); int dp_ctrl_off_link(struct dp_ctrl *dp_ctrl); int dp_ctrl_off(struct dp_ctrl *dp_ctrl);