From patchwork Wed Apr 10 12:07:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13624172 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D5CBCD11C2 for ; Wed, 10 Apr 2024 12:09:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 37ABF113313; Wed, 10 Apr 2024 12:09:46 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id ACB85112821 for ; Wed, 10 Apr 2024 12:09:32 +0000 (UTC) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id BB142350C3; Wed, 10 Apr 2024 12:09:30 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 7CDCA13A94; Wed, 10 Apr 2024 12:09:30 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id 8IVEHXqBFmY8BQAAn2gu4w (envelope-from ); Wed, 10 Apr 2024 12:09:30 +0000 From: Thomas Zimmermann To: javierm@redhat.com, jani.nikula@linux.intel.com, airlied@redhat.com, sean@poorly.run Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann , Robert Tarasov , Alex Deucher , stable@vger.kernel.org Subject: [PATCH v2 1/5] drm/udl: Remove DRM_CONNECTOR_POLL_HPD Date: Wed, 10 Apr 2024 14:07:50 +0200 Message-ID: <20240410120928.26487-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240410120928.26487-1-tzimmermann@suse.de> References: <20240410120928.26487-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: BB142350C3 X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" DisplayLink devices do not generate hotplug events. Remove the poll flag DRM_CONNECTOR_POLL_HPD, as it may not be specified together with DRM_CONNECTOR_POLL_CONNECT or DRM_CONNECTOR_POLL_DISCONNECT. Signed-off-by: Thomas Zimmermann Fixes: afdfc4c6f55f ("drm/udl: Fixed problem with UDL adpater reconnection") Cc: Robert Tarasov Cc: Alex Deucher Cc: Dave Airlie Cc: Sean Paul Cc: Thomas Zimmermann Cc: dri-devel@lists.freedesktop.org Cc: # v4.15+ Reviewed-by: Jani Nikula --- drivers/gpu/drm/udl/udl_modeset.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index 7702359c90c22..751da3a294c44 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -527,8 +527,7 @@ struct drm_connector *udl_connector_init(struct drm_device *dev) drm_connector_helper_add(connector, &udl_connector_helper_funcs); - connector->polled = DRM_CONNECTOR_POLL_HPD | - DRM_CONNECTOR_POLL_CONNECT | + connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT; return connector; From patchwork Wed Apr 10 12:07:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13624168 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D7908CD128A for ; Wed, 10 Apr 2024 12:09:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B65A910E519; Wed, 10 Apr 2024 12:09:35 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id A9483112649 for ; Wed, 10 Apr 2024 12:09:32 +0000 (UTC) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id EF4D2350C4; Wed, 10 Apr 2024 12:09:30 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id C0F1A13A92; Wed, 10 Apr 2024 12:09:30 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id wDnsLXqBFmY8BQAAn2gu4w (envelope-from ); Wed, 10 Apr 2024 12:09:30 +0000 From: Thomas Zimmermann To: javierm@redhat.com, jani.nikula@linux.intel.com, airlied@redhat.com, sean@poorly.run Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH v2 2/5] drm/udl: Move drm_dev_{enter, exit}() into udl_get_edid_block() Date: Wed, 10 Apr 2024 14:07:51 +0200 Message-ID: <20240410120928.26487-3-tzimmermann@suse.de> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240410120928.26487-1-tzimmermann@suse.de> References: <20240410120928.26487-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: EF4D2350C4 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Protect the code in udl_get_edid_block() with drm_dev_enter() and drm_dev_exit(), so that all callers automatically invoke it. The function uses hardware resources, which can be hot-unplugged at any time. The other code in udl_connector_detect() does not use the resources of the hardware device and therefore does not require protection. This change will allow to use udl_get_edid_block() in various contexts easily. Signed-off-by: Thomas Zimmermann Reviewed-by: Jani Nikula --- drivers/gpu/drm/udl/udl_modeset.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index 751da3a294c44..3df9fc38388b4 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -434,13 +434,18 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block, size_t le struct drm_device *dev = &udl->drm; struct usb_device *udev = udl_to_usb_device(udl); u8 *read_buff; - int ret; + int idx, ret; size_t i; read_buff = kmalloc(2, GFP_KERNEL); if (!read_buff) return -ENOMEM; + if (!drm_dev_enter(dev, &idx)) { + ret = -ENODEV; + goto err_kfree; + } + for (i = 0; i < len; i++) { int bval = (i + block * EDID_LENGTH) << 8; @@ -449,20 +454,23 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block, size_t le 0xA1, read_buff, 2, USB_CTRL_GET_TIMEOUT); if (ret < 0) { drm_err(dev, "Read EDID byte %zu failed err %x\n", i, ret); - goto err_kfree; + goto err_drm_dev_exit; } else if (ret < 1) { ret = -EIO; drm_err(dev, "Read EDID byte %zu failed\n", i); - goto err_kfree; + goto err_drm_dev_exit; } buf[i] = read_buff[1]; } + drm_dev_exit(idx); kfree(read_buff); return 0; +err_drm_dev_exit: + drm_dev_exit(idx); err_kfree: kfree(read_buff); return ret; @@ -474,21 +482,15 @@ static enum drm_connector_status udl_connector_detect(struct drm_connector *conn struct udl_device *udl = to_udl(dev); struct udl_connector *udl_connector = to_udl_connector(connector); enum drm_connector_status status = connector_status_disconnected; - int idx; /* cleanup previous EDID */ kfree(udl_connector->edid); udl_connector->edid = NULL; - if (!drm_dev_enter(dev, &idx)) - return connector_status_disconnected; - udl_connector->edid = drm_do_get_edid(connector, udl_get_edid_block, udl); if (udl_connector->edid) status = connector_status_connected; - drm_dev_exit(idx); - return status; } From patchwork Wed Apr 10 12:07:52 2024 Content-Type: text/plain; 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No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Jani Nikula --- drivers/gpu/drm/udl/Makefile | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/udl/Makefile b/drivers/gpu/drm/udl/Makefile index 3f6db179455d1..00690741db376 100644 --- a/drivers/gpu/drm/udl/Makefile +++ b/drivers/gpu/drm/udl/Makefile @@ -1,4 +1,9 @@ # SPDX-License-Identifier: GPL-2.0-only -udl-y := udl_drv.o udl_modeset.o udl_main.o udl_transfer.o + +udl-y := \ + udl_drv.o \ + udl_main.o \ + udl_modeset.o \ + udl_transfer.o obj-$(CONFIG_DRM_UDL) := udl.o From patchwork Wed Apr 10 12:07:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13624173 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91D96CD11C2 for ; Wed, 10 Apr 2024 12:09:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B027A112649; Wed, 10 Apr 2024 12:09:57 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id A77A41120A8 for ; Wed, 10 Apr 2024 12:09:32 +0000 (UTC) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 6EC2D350C6; Wed, 10 Apr 2024 12:09:31 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 3F42E13A92; Wed, 10 Apr 2024 12:09:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id UD8/DnuBFmY8BQAAn2gu4w (envelope-from ); Wed, 10 Apr 2024 12:09:31 +0000 From: Thomas Zimmermann To: javierm@redhat.com, jani.nikula@linux.intel.com, airlied@redhat.com, sean@poorly.run Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH v2 4/5] drm/udl: Untangle .get_modes() and .detect_ctx() Date: Wed, 10 Apr 2024 14:07:53 +0200 Message-ID: <20240410120928.26487-5-tzimmermann@suse.de> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240410120928.26487-1-tzimmermann@suse.de> References: <20240410120928.26487-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: 6EC2D350C6 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Provide separate implementations of .get_modes() and .detect_ctx() from struct drm_connector. Switch to struct drm_edid. Udl's .detect() helper used to fetch the EDID from the adapter and the .get_modes() helper provided display modes from the data. But this relied on the DRM helpers to call the functions in the correct order. When no EDID could be retrieved, .detect() regularly printed a warning to the kernel log. Switching to the new helpers around struct drm_edid separates both from each other. The .get_modes() helper now fetches the EDID by itself and the .detect_ctx() helper only tests for its presence. The patch does a number of things to implement this. - Move udl_get_edid_block() to udl_edid.c and rename it to udl_read_edid_block(). Then use the helper to implement probing in udl_probe_edid() and reading in udl_edid_read(). The latter helper is build on top of DRM helpers. - Replace the existing code in .get_modes() and .detect() with udl's new EDID helpers. The new code behaves like DRM's similar DDC-based helpers. Instead of .detect(), udl now implements .detect_ctx(). - Remove the edid data from struct udl_connector. The field cached the EDID data between calls to .detect() and .get_modes(), but is now unused. v2: - implement udl_probe_edid() within udl - reword commit description Signed-off-by: Thomas Zimmermann Reviewed-by: Jani Nikula --- drivers/gpu/drm/udl/Makefile | 1 + drivers/gpu/drm/udl/udl_drv.h | 2 - drivers/gpu/drm/udl/udl_edid.c | 79 +++++++++++++++++++++++++++ drivers/gpu/drm/udl/udl_edid.h | 15 ++++++ drivers/gpu/drm/udl/udl_modeset.c | 90 +++++++------------------------ 5 files changed, 114 insertions(+), 73 deletions(-) create mode 100644 drivers/gpu/drm/udl/udl_edid.c create mode 100644 drivers/gpu/drm/udl/udl_edid.h diff --git a/drivers/gpu/drm/udl/Makefile b/drivers/gpu/drm/udl/Makefile index 00690741db376..43d69a16af183 100644 --- a/drivers/gpu/drm/udl/Makefile +++ b/drivers/gpu/drm/udl/Makefile @@ -2,6 +2,7 @@ udl-y := \ udl_drv.o \ + udl_edid.o \ udl_main.o \ udl_modeset.o \ udl_transfer.o diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 282ebd6c02fda..f112cfb270f31 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -51,8 +51,6 @@ struct urb_list { struct udl_connector { struct drm_connector connector; - /* last udl_detect edid */ - struct edid *edid; }; static inline struct udl_connector *to_udl_connector(struct drm_connector *connector) diff --git a/drivers/gpu/drm/udl/udl_edid.c b/drivers/gpu/drm/udl/udl_edid.c new file mode 100644 index 0000000000000..626f1badea90a --- /dev/null +++ b/drivers/gpu/drm/udl/udl_edid.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include + +#include "udl_drv.h" +#include "udl_edid.h" + +static int udl_read_edid_block(void *data, u8 *buf, unsigned int block, size_t len) +{ + struct udl_device *udl = data; + struct drm_device *dev = &udl->drm; + struct usb_device *udev = udl_to_usb_device(udl); + u8 *read_buff; + int idx, ret; + size_t i; + + read_buff = kmalloc(2, GFP_KERNEL); + if (!read_buff) + return -ENOMEM; + + if (!drm_dev_enter(dev, &idx)) { + ret = -ENODEV; + goto err_kfree; + } + + for (i = 0; i < len; i++) { + int bval = (i + block * EDID_LENGTH) << 8; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + 0x02, (0x80 | (0x02 << 5)), bval, + 0xA1, read_buff, 2, USB_CTRL_GET_TIMEOUT); + if (ret < 0) { + drm_err(dev, "Read EDID byte %zu failed err %x\n", i, ret); + goto err_drm_dev_exit; + } else if (ret < 1) { + ret = -EIO; + drm_err(dev, "Read EDID byte %zu failed\n", i); + goto err_drm_dev_exit; + } + + buf[i] = read_buff[1]; + } + + drm_dev_exit(idx); + kfree(read_buff); + + return 0; + +err_drm_dev_exit: + drm_dev_exit(idx); +err_kfree: + kfree(read_buff); + return ret; +} + +bool udl_probe_edid(struct udl_device *udl) +{ + static const u8 no_edid[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + u8 hdr[8]; + int ret; + + ret = udl_read_edid_block(udl, hdr, 0, sizeof(hdr)); + if (ret) + return false; + + /* + * The adapter sends all-zeros if no monitor has been + * connected. We consider anything else a connection. + */ + return memcmp(no_edid, hdr, 8) != 0; +} + +const struct drm_edid *udl_edid_read(struct drm_connector *connector) +{ + struct udl_device *udl = to_udl(connector->dev); + + return drm_edid_read_custom(connector, udl_read_edid_block, udl); +} diff --git a/drivers/gpu/drm/udl/udl_edid.h b/drivers/gpu/drm/udl/udl_edid.h new file mode 100644 index 0000000000000..fe15ff3752b7d --- /dev/null +++ b/drivers/gpu/drm/udl/udl_edid.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef UDL_EDID_H +#define UDL_EDID_H + +#include + +struct drm_connector; +struct drm_edid; +struct udl_device; + +bool udl_probe_edid(struct udl_device *udl); +const struct drm_edid *udl_edid_read(struct drm_connector *connector); + +#endif diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index 3df9fc38388b4..4236ce57f5945 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -25,6 +25,7 @@ #include #include "udl_drv.h" +#include "udl_edid.h" #include "udl_proto.h" /* @@ -415,97 +416,44 @@ static const struct drm_encoder_funcs udl_encoder_funcs = { static int udl_connector_helper_get_modes(struct drm_connector *connector) { - struct udl_connector *udl_connector = to_udl_connector(connector); + const struct drm_edid *drm_edid; + int count; - drm_connector_update_edid_property(connector, udl_connector->edid); - if (udl_connector->edid) - return drm_add_edid_modes(connector, udl_connector->edid); + drm_edid = udl_edid_read(connector); + drm_edid_connector_update(connector, drm_edid); + count = drm_edid_connector_add_modes(connector); + drm_edid_free(drm_edid); - return 0; + return count; } -static const struct drm_connector_helper_funcs udl_connector_helper_funcs = { - .get_modes = udl_connector_helper_get_modes, -}; - -static int udl_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len) +static int udl_connector_helper_detect_ctx(struct drm_connector *connector, + struct drm_modeset_acquire_ctx *ctx, + bool force) { - struct udl_device *udl = data; - struct drm_device *dev = &udl->drm; - struct usb_device *udev = udl_to_usb_device(udl); - u8 *read_buff; - int idx, ret; - size_t i; - - read_buff = kmalloc(2, GFP_KERNEL); - if (!read_buff) - return -ENOMEM; + struct udl_device *udl = to_udl(connector->dev); - if (!drm_dev_enter(dev, &idx)) { - ret = -ENODEV; - goto err_kfree; - } - - for (i = 0; i < len; i++) { - int bval = (i + block * EDID_LENGTH) << 8; - - ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), - 0x02, (0x80 | (0x02 << 5)), bval, - 0xA1, read_buff, 2, USB_CTRL_GET_TIMEOUT); - if (ret < 0) { - drm_err(dev, "Read EDID byte %zu failed err %x\n", i, ret); - goto err_drm_dev_exit; - } else if (ret < 1) { - ret = -EIO; - drm_err(dev, "Read EDID byte %zu failed\n", i); - goto err_drm_dev_exit; - } - - buf[i] = read_buff[1]; - } + if (udl_probe_edid(udl)) + return connector_status_connected; - drm_dev_exit(idx); - kfree(read_buff); - - return 0; - -err_drm_dev_exit: - drm_dev_exit(idx); -err_kfree: - kfree(read_buff); - return ret; + return connector_status_disconnected; } -static enum drm_connector_status udl_connector_detect(struct drm_connector *connector, bool force) -{ - struct drm_device *dev = connector->dev; - struct udl_device *udl = to_udl(dev); - struct udl_connector *udl_connector = to_udl_connector(connector); - enum drm_connector_status status = connector_status_disconnected; - - /* cleanup previous EDID */ - kfree(udl_connector->edid); - udl_connector->edid = NULL; - - udl_connector->edid = drm_do_get_edid(connector, udl_get_edid_block, udl); - if (udl_connector->edid) - status = connector_status_connected; - - return status; -} +static const struct drm_connector_helper_funcs udl_connector_helper_funcs = { + .get_modes = udl_connector_helper_get_modes, + .detect_ctx = udl_connector_helper_detect_ctx, +}; static void udl_connector_destroy(struct drm_connector *connector) { struct udl_connector *udl_connector = to_udl_connector(connector); drm_connector_cleanup(connector); - kfree(udl_connector->edid); kfree(udl_connector); } static const struct drm_connector_funcs udl_connector_funcs = { .reset = drm_atomic_helper_connector_reset, - .detect = udl_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = udl_connector_destroy, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, From patchwork Wed Apr 10 12:07:54 2024 Content-Type: text/plain; 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REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_FIVE(0.00)[6]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap2.dmz-prg2.suse.org:helo,imap2.dmz-prg2.suse.org:rdns,suse.de:email]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_ALL(0.00)[] X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Udl's struct udl_connector is an empty wrapper around struct drm_connector. Remove it. Allocate the connector as part of struct udl_device and inline the init function into its only caller. v2: - fix return value in udl_modeset_init() (Dan) Signed-off-by: Thomas Zimmermann Reviewed-by: Jani Nikula --- drivers/gpu/drm/udl/udl_drv.h | 10 +------ drivers/gpu/drm/udl/udl_modeset.c | 49 +++++++------------------------ 2 files changed, 11 insertions(+), 48 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index f112cfb270f31..1eb716d9dad57 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -49,15 +49,6 @@ struct urb_list { size_t size; }; -struct udl_connector { - struct drm_connector connector; -}; - -static inline struct udl_connector *to_udl_connector(struct drm_connector *connector) -{ - return container_of(connector, struct udl_connector, connector); -} - struct udl_device { struct drm_device drm; struct device *dev; @@ -66,6 +57,7 @@ struct udl_device { struct drm_plane primary_plane; struct drm_crtc crtc; struct drm_encoder encoder; + struct drm_connector connector; struct mutex gem_lock; diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index 4236ce57f5945..bbb04f98886a2 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -444,49 +444,14 @@ static const struct drm_connector_helper_funcs udl_connector_helper_funcs = { .detect_ctx = udl_connector_helper_detect_ctx, }; -static void udl_connector_destroy(struct drm_connector *connector) -{ - struct udl_connector *udl_connector = to_udl_connector(connector); - - drm_connector_cleanup(connector); - kfree(udl_connector); -} - static const struct drm_connector_funcs udl_connector_funcs = { .reset = drm_atomic_helper_connector_reset, .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = udl_connector_destroy, + .destroy = drm_connector_cleanup, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; -struct drm_connector *udl_connector_init(struct drm_device *dev) -{ - struct udl_connector *udl_connector; - struct drm_connector *connector; - int ret; - - udl_connector = kzalloc(sizeof(*udl_connector), GFP_KERNEL); - if (!udl_connector) - return ERR_PTR(-ENOMEM); - - connector = &udl_connector->connector; - ret = drm_connector_init(dev, connector, &udl_connector_funcs, DRM_MODE_CONNECTOR_VGA); - if (ret) - goto err_kfree; - - drm_connector_helper_add(connector, &udl_connector_helper_funcs); - - connector->polled = DRM_CONNECTOR_POLL_CONNECT | - DRM_CONNECTOR_POLL_DISCONNECT; - - return connector; - -err_kfree: - kfree(udl_connector); - return ERR_PTR(ret); -} - /* * Modesetting */ @@ -556,9 +521,15 @@ int udl_modeset_init(struct drm_device *dev) return ret; encoder->possible_crtcs = drm_crtc_mask(crtc); - connector = udl_connector_init(dev); - if (IS_ERR(connector)) - return PTR_ERR(connector); + connector = &udl->connector; + ret = drm_connector_init(dev, connector, &udl_connector_funcs, DRM_MODE_CONNECTOR_VGA); + if (ret) + return ret; + drm_connector_helper_add(connector, &udl_connector_helper_funcs); + + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + ret = drm_connector_attach_encoder(connector, encoder); if (ret) return ret;