From patchwork Sun Jul 9 03:42:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 700945 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 716C6C001B0 for ; Sun, 9 Jul 2023 03:42:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229828AbjGIDmS (ORCPT ); Sat, 8 Jul 2023 23:42:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229690AbjGIDmR (ORCPT ); Sat, 8 Jul 2023 23:42:17 -0400 Received: from mail-lj1-x230.google.com (mail-lj1-x230.google.com [IPv6:2a00:1450:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DB931BF for ; Sat, 8 Jul 2023 20:42:15 -0700 (PDT) Received: by mail-lj1-x230.google.com with SMTP id 38308e7fff4ca-2b69e6d324aso50881801fa.0 for ; Sat, 08 Jul 2023 20:42:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688874133; x=1691466133; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5GcngeKrc6iQMTCcQ+NWXlMHX6Z9IBAtodkWs8S93EY=; b=hddp9ODUzI081vukQ5aYlyZ5ePwX15rdAgzpwktofwqzIkfeV/MSwjHqGZDlTw11zP +0Ymt08hvuJwJOK6d2VfD4S6K5Q2+doooWQiJk/c7RtMvSznKnikpj19LO2E6vT0u18O rzhehqXhJR2MMjs9Oy0dnVaEvySRfGdcW9DwH7JSYoHZlxHRry4J2dppwfo9bPJ8EEKV keJ/d8BtLi9epY9V1eP3Igk9Z5GY4pqtL+yo2fS3zi2er1OUAf9lLC0gnySQbNFWv7dn YUDKzZhdhOLpTqCM0Qr71QNEdJW9ekklkgWo7vslUpPfA5zFNPRVqmrAt8dvZqI2KR7S m/yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688874133; x=1691466133; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5GcngeKrc6iQMTCcQ+NWXlMHX6Z9IBAtodkWs8S93EY=; b=X6ea+T87xQ/DD/D7Fc+P5hzGPaJzXRcwPqqSi1EUgYHFVxwR0Hz9q6FvC0j8zVpUHz NPy/2atgXzcf2pGJLk85mbpuSNhUqPVLe5xuqBLOFROvLiVN4BpQ7PW0FjUarPBPdVJc y0OBRK9AwMKBPVgonALXZPVc7daTIhnUMpunlS9J0fHGD/g9WIGpAGqYNDltOPrQAZPX gju34QBvk7Ce31DOHsYMebL5qf1PapRwq58l7wRRO+17uoqOT7WI7tUIaGRnD7HSg/vl 2ae0a8xnD/n/4no3KOA62vcF1xnPBqgpnPHC9Qi1/MqkMu36Blpas6x6neAX3jt0Wkx0 1afg== X-Gm-Message-State: ABy/qLYSs20YvISRcawe+G1az0Ue6KuAd/SdfopjwKvbnxr7sQzh+sQ3 XBmqpwiyUnXWqkHPPC6RKF3mjA== X-Google-Smtp-Source: APBJJlGAGNwFmkDZYZsTKaksCTH5kRqGgnK7UEhN9gnHdQpACtVEA9cuGTUgiadC6297tSdW4zNhhw== X-Received: by 2002:a2e:9844:0:b0:2b6:9fdf:d8f4 with SMTP id e4-20020a2e9844000000b002b69fdfd8f4mr6435012ljj.29.1688874133383; Sat, 08 Jul 2023 20:42:13 -0700 (PDT) Received: from lothlorien.lan (dzdqv0yyyyyyyyyyybm5y-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::ab2]) by smtp.gmail.com with ESMTPSA id y13-20020a2e9d4d000000b002b6d7682050sm1390289ljj.89.2023.07.08.20.42.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Jul 2023 20:42:13 -0700 (PDT) From: Dmitry Baryshkov To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Heikki Krogerus , Greg Kroah-Hartman , =?utf-8?b?VmlsbGUgU3lyasOk?= =?utf-8?b?bMOk?= Cc: Rob Clark , Sean Paul , Abhinav Kumar , Bjorn Andersson , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Bjorn Andersson , Hans de Goede Subject: [PATCH v5 1/3] drm: Add HPD state to drm_connector_oob_hotplug_event() Date: Sun, 9 Jul 2023 06:42:09 +0300 Message-Id: <20230709034211.4045004-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> References: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bjorn Andersson In some implementations, such as the Qualcomm platforms, the display driver has no way to query the current HPD state and as such it's impossible to distinguish between disconnect and attention events. Add a parameter to drm_connector_oob_hotplug_event() to pass the HPD state. Also push the test for unchanged state in the displayport altmode driver into the i915 driver, to allow other drivers to act upon each update. Signed-off-by: Bjorn Andersson Reviewed-by: Hans de Goede Acked-by: Heikki Krogerus Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 6 ++++-- .../gpu/drm/i915/display/intel_display_core.h | 3 +++ drivers/gpu/drm/i915/display/intel_dp.c | 17 ++++++++++++++--- drivers/usb/typec/altmodes/displayport.c | 13 ++++++------- include/drm/drm_connector.h | 6 ++++-- 5 files changed, 31 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 3ed4cfcb350c..1128149c74f2 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -3049,6 +3049,7 @@ struct drm_connector *drm_connector_find_by_fwnode(struct fwnode_handle *fwnode) /** * drm_connector_oob_hotplug_event - Report out-of-band hotplug event to connector * @connector_fwnode: fwnode_handle to report the event on + * @status: hot plug detect logical state * * On some hardware a hotplug event notification may come from outside the display * driver / device. An example of this is some USB Type-C setups where the hardware @@ -3058,7 +3059,8 @@ struct drm_connector *drm_connector_find_by_fwnode(struct fwnode_handle *fwnode) * This function can be used to report these out-of-band events after obtaining * a drm_connector reference through calling drm_connector_find_by_fwnode(). */ -void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode) +void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode, + enum drm_connector_status status) { struct drm_connector *connector; @@ -3067,7 +3069,7 @@ void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode) return; if (connector->funcs->oob_hotplug_event) - connector->funcs->oob_hotplug_event(connector); + connector->funcs->oob_hotplug_event(connector, status); drm_connector_put(connector); } diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h index 8d2243c71dd8..419efee5df74 100644 --- a/drivers/gpu/drm/i915/display/intel_display_core.h +++ b/drivers/gpu/drm/i915/display/intel_display_core.h @@ -175,6 +175,9 @@ struct intel_hotplug { /* Whether or not to count short HPD IRQs in HPD storms */ u8 hpd_short_storm_enabled; + /* Last state reported by oob_hotplug_event for each encoder */ + unsigned long oob_hotplug_last_state; + /* * if we get a HPD irq from DP and a HPD irq from non-DP * the non-DP HPD could block the workqueue on a mode config diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 9f40da20e88d..cf633f0df6ff 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5244,15 +5244,26 @@ static int intel_dp_connector_atomic_check(struct drm_connector *conn, return intel_modeset_synced_crtcs(state, conn); } -static void intel_dp_oob_hotplug_event(struct drm_connector *connector) +static void intel_dp_oob_hotplug_event(struct drm_connector *connector, + enum drm_connector_status hpd_state) { struct intel_encoder *encoder = intel_attached_encoder(to_intel_connector(connector)); struct drm_i915_private *i915 = to_i915(connector->dev); + bool hpd_high = hpd_state == connector_status_connected; + unsigned int hpd_pin = encoder->hpd_pin; + bool need_work = false; spin_lock_irq(&i915->irq_lock); - i915->display.hotplug.event_bits |= BIT(encoder->hpd_pin); + if (hpd_high != test_bit(hpd_pin, &i915->display.hotplug.oob_hotplug_last_state)) { + i915->display.hotplug.event_bits |= BIT(hpd_pin); + + __assign_bit(hpd_pin, &i915->display.hotplug.oob_hotplug_last_state, hpd_high); + need_work = true; + } spin_unlock_irq(&i915->irq_lock); - queue_delayed_work(i915->unordered_wq, &i915->display.hotplug.hotplug_work, 0); + + if (need_work) + queue_delayed_work(i915->unordered_wq, &i915->display.hotplug.hotplug_work, 0); } static const struct drm_connector_funcs intel_dp_connector_funcs = { diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c index 66de880b28d0..4e5aa17ce4c8 100644 --- a/drivers/usb/typec/altmodes/displayport.c +++ b/drivers/usb/typec/altmodes/displayport.c @@ -147,11 +147,11 @@ static int dp_altmode_status_update(struct dp_altmode *dp) if (!ret) dp->state = DP_STATE_CONFIGURE; } else { - if (dp->hpd != hpd) { - drm_connector_oob_hotplug_event(dp->connector_fwnode); - dp->hpd = hpd; - sysfs_notify(&dp->alt->dev.kobj, "displayport", "hpd"); - } + drm_connector_oob_hotplug_event(dp->connector_fwnode, + hpd ? connector_status_connected : + connector_status_disconnected); + dp->hpd = hpd; + sysfs_notify(&dp->alt->dev.kobj, "displayport", "hpd"); } return ret; @@ -599,8 +599,7 @@ void dp_altmode_remove(struct typec_altmode *alt) cancel_work_sync(&dp->work); if (dp->connector_fwnode) { - if (dp->hpd) - drm_connector_oob_hotplug_event(dp->connector_fwnode); + drm_connector_oob_hotplug_event(dp->connector_fwnode, connector_status_disconnected); fwnode_handle_put(dp->connector_fwnode); } diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index d300fde6c1a4..5a8115dca359 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1327,7 +1327,8 @@ struct drm_connector_funcs { * This will get called when a hotplug-event for a drm-connector * has been received from a source outside the display driver / device. */ - void (*oob_hotplug_event)(struct drm_connector *connector); + void (*oob_hotplug_event)(struct drm_connector *connector, + enum drm_connector_status status); /** * @debugfs_init: @@ -1971,7 +1972,8 @@ drm_connector_is_unregistered(struct drm_connector *connector) DRM_CONNECTOR_UNREGISTERED; } -void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode); +void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode, + enum drm_connector_status status); const char *drm_get_connector_type_name(unsigned int connector_type); const char *drm_get_connector_status_name(enum drm_connector_status status); const char *drm_get_subpixel_order_name(enum subpixel_order order); From patchwork Sun Jul 9 03:42:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 701177 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 A3B70EB64DD for ; Sun, 9 Jul 2023 03:42:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229690AbjGIDmS (ORCPT ); Sat, 8 Jul 2023 23:42:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229709AbjGIDmR (ORCPT ); Sat, 8 Jul 2023 23:42:17 -0400 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10292E48 for ; Sat, 8 Jul 2023 20:42:16 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id 38308e7fff4ca-2b6a6f224a1so53183861fa.1 for ; Sat, 08 Jul 2023 20:42:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688874134; x=1691466134; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TJYjNiYNzWjxH+XhoyNFMKctuYtv2+kbNIyIzjM3yLU=; b=j98con11pP7sdzRlNNWpVvpwOmK6q98t4lmleVYXmYLIcnuYXj36vwUVH6gRPSuNXH hvk6McZqYZMu+O7/bKYauksX3s2YRPgvw779Ae3M2ukE1zcR5uXK1WG6/N1s1tg5d8kI B3G0eZE0zrMbI3PWnb+xgmSJCvdRRkKbIIoYpm+GHSQmFCtXZL7JCJpNL8FUdq5vvgPV C0KctOtqx/fKRwI3Ysr7fsjNJoJPitmf2IAmtS+Hj/XF7k3lawv0jASnUQNGMfUwtzYx /TfZRMyH1hSyuwi/UAjvp+NfWNVzjn7BHwE6iOqHjYJdTbG+IsNd8JInQQnt78XqDGmH cHzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688874134; x=1691466134; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TJYjNiYNzWjxH+XhoyNFMKctuYtv2+kbNIyIzjM3yLU=; b=W8Gwbla3LVxaX2DvCtjiTdqvRRMv1mO5NYEdc10Ysq27XJWkPs3HJp/uM48FohbfLc qQkNTE0vrRIHpgSjEHtudqhtJziPMl2//q78e+1rCTbiLf2WZwzL3TKxqvPhM5/wjHUH HL1C43Es1ni9lVbWXvNFNQYjIR1zzfXzQ1FUo9XsnMQ8p1ek3UvDVdv68yenS6JsRMpt XBuLK7lBM4W8VHmGsHZQtefsnQ5p1WeuFlHyaPnuv12K33KI0tNZ240UoBpj1HFgBauF ipbHkLUDDhWENhs29+1FPwiG4zCeVqsuGXpU1IOuG6fXeZPeliMWbgw1tpahPNfCct7b YKrA== X-Gm-Message-State: ABy/qLaW3AfhpYEDga3qkJAWMVQuke98tAsMpeiZ6sYKX/Vv8t7oCygd GoN0l19fQASju2/vW1sVJAxcBg== X-Google-Smtp-Source: APBJJlEFwjopZbeqkrh82suxe7jo8qJQ0dOe7Qudk5a/sj1MHOxSDaQ5FPYIa7FHlbwt+yhdoHwlpQ== X-Received: by 2002:a2e:9902:0:b0:2b6:cfec:69f7 with SMTP id v2-20020a2e9902000000b002b6cfec69f7mr6739101lji.1.1688874134116; Sat, 08 Jul 2023 20:42:14 -0700 (PDT) Received: from lothlorien.lan (dzdqv0yyyyyyyyyyybm5y-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::ab2]) by smtp.gmail.com with ESMTPSA id y13-20020a2e9d4d000000b002b6d7682050sm1390289ljj.89.2023.07.08.20.42.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Jul 2023 20:42:13 -0700 (PDT) From: Dmitry Baryshkov To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Heikki Krogerus , Greg Kroah-Hartman , =?utf-8?b?VmlsbGUgU3lyasOk?= =?utf-8?b?bMOk?= Cc: Rob Clark , Sean Paul , Abhinav Kumar , Bjorn Andersson , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org Subject: [PATCH v5 2/3] drm/bridge_connector: stop filtering events in drm_bridge_connector_hpd_cb() Date: Sun, 9 Jul 2023 06:42:10 +0300 Message-Id: <20230709034211.4045004-3-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> References: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In some cases the bridge drivers would like to receive hotplug events even in the case new status is equal to the old status. In the DP case this is used to deliver "attention" messages to the DP host. Stop filtering the events in the drm_bridge_connector_hpd_cb() and let drivers decide whether they would like to receive the event or not. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_bridge_connector.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c index 19ae4a177ac3..84d8d310ef04 100644 --- a/drivers/gpu/drm/drm_bridge_connector.c +++ b/drivers/gpu/drm/drm_bridge_connector.c @@ -113,16 +113,11 @@ static void drm_bridge_connector_hpd_cb(void *cb_data, struct drm_bridge_connector *drm_bridge_connector = cb_data; struct drm_connector *connector = &drm_bridge_connector->base; struct drm_device *dev = connector->dev; - enum drm_connector_status old_status; mutex_lock(&dev->mode_config.mutex); - old_status = connector->status; connector->status = status; mutex_unlock(&dev->mode_config.mutex); - if (old_status == status) - return; - drm_bridge_connector_hpd_notify(connector, status); drm_kms_helper_hotplug_event(dev); From patchwork Sun Jul 9 03:42:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 700944 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 54785EB64DC for ; Sun, 9 Jul 2023 03:42:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229726AbjGIDmU (ORCPT ); Sat, 8 Jul 2023 23:42:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37286 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbjGIDmR (ORCPT ); Sat, 8 Jul 2023 23:42:17 -0400 Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E809E3 for ; Sat, 8 Jul 2023 20:42:16 -0700 (PDT) Received: by mail-lj1-x22f.google.com with SMTP id 38308e7fff4ca-2b6fbf0c0e2so50019091fa.2 for ; Sat, 08 Jul 2023 20:42:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688874135; x=1691466135; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xuK4zRTQtpemrtJQHlivu+9KOJF/i4juAvKU4fCYtbs=; b=sA+8HlTiTqDJZTtDglpA8b4/AIm2/r4HbV6YLCKxy4KQMN8jSI+p4pcnMsQmlFDlwL gb480YD1MUfAmtPeArJsnVpyG1TMf77WpkYB+1vtSy87fG65qc9+Qc2AkvdrwVshBUiD C6clyCgZqZ6WVwZMNl5a72c+8OWdFOXDY4CkheRJmubwRkm/hSjSUBMZH2cP1GINzeD0 UrcfAJ5ypGDcPx/ocD0RQlc/gaaP5CODXurjiIUPCy49JYsRWdvJQEtDrjTcximg2k5l TxkMGwr1Pr1+bGSfv7xlA4NUo3GzO3c82yM2+AMXGvI20IgPvrURux/HbBVS8206jcMx 2ehg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688874135; x=1691466135; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xuK4zRTQtpemrtJQHlivu+9KOJF/i4juAvKU4fCYtbs=; b=RolYou98bKlOFfzWXpA9mmwntuR8ZjdgOX1oTP4p4NHR6u3usKUMlkIuGisiFpsAbi X9/npBX2EXs/twqetyKjQoGmuxslkncqjNP4UmxSjJAI/tinPaRLCD1AnkeMjrMulWN9 kC9N9/x6g/DhtdvGrZYMYUmJa2A4fo1KmYoY6Yi3Sq1voxvRMECFWZuhpKlsgh1mKsNN WETLC63Km2WVCBgXZA6LySVNNkccnO3vzrHyTBTmzDABsDObJsh4sX/Hot4O75MHZrKc 0VxqT1zkueBhhchHoR72TmBieARW1gmElrUU4vrAiqd49fd/jJi1FCsPyTa/01uj6lgF 01fA== X-Gm-Message-State: ABy/qLYcmmlqVimw9vnHqR1C0dHEg6A8CuMuKOG+16MM1fmjUvIFL+2N bmM6I9SmoH3EqWqLT/mG+6Zi5g== X-Google-Smtp-Source: APBJJlFv0O8WZ+VPH1Ou8nrTgXdcBmf6HFZApHz5X21b8fVffVcQEGu1H6y+jckZ8DTwBaR4RSUfGQ== X-Received: by 2002:a2e:969a:0:b0:2b6:dcde:b77f with SMTP id q26-20020a2e969a000000b002b6dcdeb77fmr7174439lji.35.1688874134831; Sat, 08 Jul 2023 20:42:14 -0700 (PDT) Received: from lothlorien.lan (dzdqv0yyyyyyyyyyybm5y-3.rev.dnainternet.fi. [2001:14ba:a0db:1f00::ab2]) by smtp.gmail.com with ESMTPSA id y13-20020a2e9d4d000000b002b6d7682050sm1390289ljj.89.2023.07.08.20.42.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Jul 2023 20:42:14 -0700 (PDT) From: Dmitry Baryshkov To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Heikki Krogerus , Greg Kroah-Hartman , =?utf-8?b?VmlsbGUgU3lyasOk?= =?utf-8?b?bMOk?= Cc: Rob Clark , Sean Paul , Abhinav Kumar , Bjorn Andersson , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org Subject: [PATCH v5 3/3] drm/bridge_connector: implement oob_hotplug_event Date: Sun, 9 Jul 2023 06:42:11 +0300 Message-Id: <20230709034211.4045004-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> References: <20230709034211.4045004-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Implement the oob_hotplug_event() callback. Translate it to the HPD notification sent to the HPD bridge in the chain. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_bridge_connector.c | 29 +++++++++++++++++++++++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c index 84d8d310ef04..364f6e37fbdc 100644 --- a/drivers/gpu/drm/drm_bridge_connector.c +++ b/drivers/gpu/drm/drm_bridge_connector.c @@ -5,6 +5,8 @@ #include #include +#include +#include #include #include @@ -107,10 +109,9 @@ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector, } } -static void drm_bridge_connector_hpd_cb(void *cb_data, - enum drm_connector_status status) +static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bridge_connector, + enum drm_connector_status status) { - struct drm_bridge_connector *drm_bridge_connector = cb_data; struct drm_connector *connector = &drm_bridge_connector->base; struct drm_device *dev = connector->dev; @@ -123,6 +124,21 @@ static void drm_bridge_connector_hpd_cb(void *cb_data, drm_kms_helper_hotplug_event(dev); } +static void drm_bridge_connector_hpd_cb(void *cb_data, + enum drm_connector_status status) +{ + drm_bridge_connector_handle_hpd(cb_data, status); +} + +static void drm_bridge_connector_oob_hotplug_event(struct drm_connector *connector, + enum drm_connector_status status) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + drm_bridge_connector_handle_hpd(bridge_connector, status); +} + static void drm_bridge_connector_enable_hpd(struct drm_connector *connector) { struct drm_bridge_connector *bridge_connector = @@ -216,6 +232,7 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = { .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, .debugfs_init = drm_bridge_connector_debugfs_init, + .oob_hotplug_event = drm_bridge_connector_oob_hotplug_event, }; /* ----------------------------------------------------------------------------- @@ -351,6 +368,12 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, if (!drm_bridge_get_next_bridge(bridge)) connector_type = bridge->type; +#ifdef CONFIG_OF + if (!drm_bridge_get_next_bridge(bridge) && + bridge->of_node) + connector->fwnode = fwnode_handle_get(of_fwnode_handle(bridge->of_node)); +#endif + if (bridge->ddc) ddc = bridge->ddc;