From patchwork Wed Feb 26 11:25:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11406229 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 16B0B138D for ; Wed, 26 Feb 2020 11:27:51 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E88B020637 for ; Wed, 26 Feb 2020 11:27:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="u5PcSxOd" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E88B020637 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 866C66E88F; Wed, 26 Feb 2020 11:27:49 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 564016E524 for ; Wed, 26 Feb 2020 11:26:11 +0000 (UTC) Received: from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 9C0A437F3; Wed, 26 Feb 2020 12:26:02 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1582716362; bh=Bq85AOwHw1q9R1Gvpj0CuNP2nUFfSe5jzlzImhNDhgc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u5PcSxOdnkHbvP82UADMg2Q4QAHFP0y8dWzzr4qMzOLw3htuFR1b6cPj+bLJBxawG Jr2vrLtON5GTFq45kR/y5cI+oRK35A8cJeWhlStsPOyusFLdptVm9GS6H5XAvy9EYU K2ti9DxmSL1ksUGNOfBWOn7KWAUQVg2GfEtqehMM= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH v8 40/54] drm/omap: Remove HPD, detect and EDID omapdss operations Date: Wed, 26 Feb 2020 13:25:00 +0200 Message-Id: <20200226112514.12455-41-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200226112514.12455-1-laurent.pinchart@ideasonboard.com> References: <20200226112514.12455-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 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: , Cc: Tomi Valkeinen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Due to the removal of several omapdrm display drivers, the omapdss HPD, detected and EDID operations are not used anymore. Remove them and all related code. Signed-off-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Tested-by: Sebastian Reichel Reviewed-by: Sebastian Reichel --- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 61 -------- drivers/gpu/drm/omapdrm/dss/hdmi5.c | 46 ------ drivers/gpu/drm/omapdrm/dss/omapdss.h | 25 +-- drivers/gpu/drm/omapdrm/omap_connector.c | 190 +++-------------------- drivers/gpu/drm/omapdrm/omap_connector.h | 2 - drivers/gpu/drm/omapdrm/omap_drv.c | 8 +- 6 files changed, 22 insertions(+), 310 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c index 52daae36935a..b9bcd6e681e8 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -321,47 +321,6 @@ static void hdmi_disconnect(struct omap_dss_device *src, omapdss_device_disconnect(dst, dst->next); } -#define MAX_EDID 512 - -static struct edid *hdmi_read_edid_data(struct omap_hdmi *hdmi, - struct drm_connector *connector) -{ - u8 *edid; - int r; - - edid = kzalloc(MAX_EDID, GFP_KERNEL); - if (!edid) - return NULL; - - r = hdmi4_core_ddc_read(&hdmi->core, edid, 0, EDID_LENGTH); - if (r) - goto error; - - if (edid[0x7e] > 0) { - char checksum = 0; - unsigned int i; - - r = hdmi4_core_ddc_read(&hdmi->core, edid + EDID_LENGTH, 1, - EDID_LENGTH); - if (r) - goto error; - - for (i = 0; i < EDID_LENGTH; ++i) - checksum += edid[EDID_LENGTH + i]; - - if (checksum != 0) { - DSSERR("E-EDID checksum failed!!\n"); - goto error; - } - } - - return (struct edid *)edid; - -error: - kfree(edid); - return NULL; -} - static struct edid * hdmi_do_read_edid(struct omap_hdmi *hdmi, struct edid *(*read)(struct omap_hdmi *hdmi, @@ -411,28 +370,9 @@ hdmi_do_read_edid(struct omap_hdmi *hdmi, return edid; } -static struct edid *hdmi_read_edid(struct omap_dss_device *dssdev) -{ - return hdmi_do_read_edid(dssdev_to_hdmi(dssdev), hdmi_read_edid_data, - NULL); -} - -static void hdmi_lost_hotplug(struct omap_dss_device *dssdev) -{ - struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev); - - hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID); -} - static const struct omap_dss_device_ops hdmi_ops = { .connect = hdmi_connect, .disconnect = hdmi_disconnect, - - .read_edid = hdmi_read_edid, - - .hdmi = { - .lost_hotplug = hdmi_lost_hotplug, - }, }; /* ----------------------------------------------------------------------------- @@ -804,7 +744,6 @@ static int hdmi4_init_output(struct omap_hdmi *hdmi) out->ops = &hdmi_ops; out->owner = THIS_MODULE; out->of_port = 0; - out->ops_flags = OMAP_DSS_DEVICE_OP_EDID; r = omapdss_device_init_output(out, &hdmi->bridge); if (r < 0) { diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c index f07fd5c6dc39..effe4a9401ff 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c @@ -319,43 +319,6 @@ static void hdmi_disconnect(struct omap_dss_device *src, omapdss_device_disconnect(dst, dst->next); } -#define MAX_EDID 512 - -static struct edid *hdmi_read_edid_data(struct omap_hdmi *hdmi, - struct drm_connector *connector) -{ - struct hdmi_core_data *core = &hdmi->core; - int max_ext_blocks = 3; - int r, n, i; - u8 *edid; - - edid = kzalloc(MAX_EDID, GFP_KERNEL); - if (!edid) - return NULL; - - r = hdmi5_core_ddc_read(core, edid, 0, EDID_LENGTH); - if (r) - goto error; - - n = edid[0x7e]; - - if (n > max_ext_blocks) - n = max_ext_blocks; - - for (i = 1; i <= n; i++) { - r = hdmi5_core_ddc_read(core, edid + i * EDID_LENGTH, i, - EDID_LENGTH); - if (r) - goto error; - } - - return (struct edid *)edid; - -error: - kfree(edid); - return NULL; -} - static struct edid * hdmi_do_read_edid(struct omap_hdmi *hdmi, struct edid *(*read)(struct omap_hdmi *hdmi, @@ -400,17 +363,9 @@ hdmi_do_read_edid(struct omap_hdmi *hdmi, return (struct edid *)edid; } -static struct edid *hdmi_read_edid(struct omap_dss_device *dssdev) -{ - return hdmi_do_read_edid(dssdev_to_hdmi(dssdev), hdmi_read_edid_data, - NULL); -} - static const struct omap_dss_device_ops hdmi_ops = { .connect = hdmi_connect, .disconnect = hdmi_disconnect, - - .read_edid = hdmi_read_edid, }; /* ----------------------------------------------------------------------------- @@ -763,7 +718,6 @@ static int hdmi5_init_output(struct omap_hdmi *hdmi) out->ops = &hdmi_ops; out->owner = THIS_MODULE; out->of_port = 0; - out->ops_flags = OMAP_DSS_DEVICE_OP_EDID; r = omapdss_device_init_output(out, &hdmi->bridge); if (r < 0) { diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index 30a12cf91cbb..cb79e05c902d 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -285,10 +285,6 @@ struct omap_dss_writeback_info { u8 pre_mult_alpha; }; -struct omapdss_hdmi_ops { - void (*lost_hotplug)(struct omap_dss_device *dssdev); -}; - struct omapdss_dsi_ops { void (*disable)(struct omap_dss_device *dssdev, bool disconnect_lanes, bool enter_ulps); @@ -356,36 +352,17 @@ struct omap_dss_device_ops { void (*set_timings)(struct omap_dss_device *dssdev, const struct drm_display_mode *mode); - bool (*detect)(struct omap_dss_device *dssdev); - - void (*register_hpd_cb)(struct omap_dss_device *dssdev, - void (*cb)(void *cb_data, - enum drm_connector_status status), - void *cb_data); - void (*unregister_hpd_cb)(struct omap_dss_device *dssdev); - - struct edid *(*read_edid)(struct omap_dss_device *dssdev); - int (*get_modes)(struct omap_dss_device *dssdev, struct drm_connector *connector); - union { - const struct omapdss_hdmi_ops hdmi; - const struct omapdss_dsi_ops dsi; - }; + const struct omapdss_dsi_ops dsi; }; /** * enum omap_dss_device_ops_flag - Indicates which device ops are supported - * @OMAP_DSS_DEVICE_OP_DETECT: The device supports output connection detection - * @OMAP_DSS_DEVICE_OP_HPD: The device supports all hot-plug-related operations - * @OMAP_DSS_DEVICE_OP_EDID: The device supports reading EDID * @OMAP_DSS_DEVICE_OP_MODES: The device supports reading modes */ enum omap_dss_device_ops_flag { - OMAP_DSS_DEVICE_OP_DETECT = BIT(0), - OMAP_DSS_DEVICE_OP_HPD = BIT(1), - OMAP_DSS_DEVICE_OP_EDID = BIT(2), OMAP_DSS_DEVICE_OP_MODES = BIT(3), }; diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c index c636ae228130..baa31ed1f993 100644 --- a/drivers/gpu/drm/omapdrm/omap_connector.c +++ b/drivers/gpu/drm/omapdrm/omap_connector.c @@ -19,111 +19,22 @@ struct omap_connector { struct drm_connector base; struct omap_dss_device *output; - struct omap_dss_device *hpd; }; -static void omap_connector_hpd_notify(struct drm_connector *connector, - enum drm_connector_status status) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev; - - if (status != connector_status_disconnected) - return; - - /* - * Notify all devics in the pipeline of disconnection. This is required - * to let the HDMI encoders reset their internal state related to - * connection status, such as the CEC address. - */ - for (dssdev = omap_connector->output; dssdev; dssdev = dssdev->next) { - if (dssdev->ops && dssdev->ops->hdmi.lost_hotplug) - dssdev->ops->hdmi.lost_hotplug(dssdev); - } -} - -static void omap_connector_hpd_cb(void *cb_data, - enum drm_connector_status status) -{ - struct omap_connector *omap_connector = cb_data; - struct drm_connector *connector = &omap_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; - - omap_connector_hpd_notify(connector, status); - - drm_kms_helper_hotplug_event(dev); -} - -void omap_connector_enable_hpd(struct drm_connector *connector) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *hpd = omap_connector->hpd; - - if (hpd) - hpd->ops->register_hpd_cb(hpd, omap_connector_hpd_cb, - omap_connector); -} - -void omap_connector_disable_hpd(struct drm_connector *connector) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *hpd = omap_connector->hpd; - - if (hpd) - hpd->ops->unregister_hpd_cb(hpd); -} - -static struct omap_dss_device * -omap_connector_find_device(struct drm_connector *connector, - enum omap_dss_device_ops_flag op) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = NULL; - struct omap_dss_device *d; - - for (d = omap_connector->output; d; d = d->next) { - if (d->ops_flags & op) - dssdev = d; - } - - return dssdev; -} - static enum drm_connector_status omap_connector_detect( struct drm_connector *connector, bool force) { - struct omap_dss_device *dssdev; enum drm_connector_status status; - dssdev = omap_connector_find_device(connector, - OMAP_DSS_DEVICE_OP_DETECT); - - if (dssdev) { - status = dssdev->ops->detect(dssdev) - ? connector_status_connected - : connector_status_disconnected; - - omap_connector_hpd_notify(connector, status); - } else { - switch (connector->connector_type) { - case DRM_MODE_CONNECTOR_DPI: - case DRM_MODE_CONNECTOR_LVDS: - case DRM_MODE_CONNECTOR_DSI: - status = connector_status_connected; - break; - default: - status = connector_status_unknown; - break; - } + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DPI: + case DRM_MODE_CONNECTOR_LVDS: + case DRM_MODE_CONNECTOR_DSI: + status = connector_status_connected; + break; + default: + status = connector_status_unknown; + break; } VERB("%s: %d (force=%d)", connector->name, status, force); @@ -137,14 +48,6 @@ static void omap_connector_destroy(struct drm_connector *connector) DBG("%s", connector->name); - if (omap_connector->hpd) { - struct omap_dss_device *hpd = omap_connector->hpd; - - hpd->ops->unregister_hpd_cb(hpd); - omapdss_device_put(hpd); - omap_connector->hpd = NULL; - } - drm_connector_unregister(connector); drm_connector_cleanup(connector); @@ -153,63 +56,27 @@ static void omap_connector_destroy(struct drm_connector *connector) kfree(omap_connector); } -static int omap_connector_get_modes_edid(struct drm_connector *connector, - struct omap_dss_device *dssdev) -{ - enum drm_connector_status status; - struct edid *edid; - int n; - - status = omap_connector_detect(connector, false); - if (status != connector_status_connected) - goto no_edid; - - edid = dssdev->ops->read_edid(dssdev); - if (!edid || !drm_edid_is_valid(edid)) { - kfree(edid); - goto no_edid; - } - - drm_connector_update_edid_property(connector, edid); - n = drm_add_edid_modes(connector, edid); - - kfree(edid); - return n; - -no_edid: - drm_connector_update_edid_property(connector, NULL); - return 0; -} - static int omap_connector_get_modes(struct drm_connector *connector) { - struct omap_dss_device *dssdev; + struct omap_connector *omap_connector = to_omap_connector(connector); + struct omap_dss_device *dssdev = NULL; + struct omap_dss_device *d; DBG("%s", connector->name); /* - * If display exposes EDID, then we parse that in the normal way to - * build table of supported modes. + * If the display pipeline reports modes (e.g. with a fixed resolution + * panel or an analog TV output), query it. */ - dssdev = omap_connector_find_device(connector, - OMAP_DSS_DEVICE_OP_EDID); - if (dssdev) - return omap_connector_get_modes_edid(connector, dssdev); + for (d = omap_connector->output; d; d = d->next) { + if (d->ops_flags & OMAP_DSS_DEVICE_OP_MODES) + dssdev = d; + } - /* - * Otherwise if the display pipeline reports modes (e.g. with a fixed - * resolution panel or an analog TV output), query it. - */ - dssdev = omap_connector_find_device(connector, - OMAP_DSS_DEVICE_OP_MODES); if (dssdev) return dssdev->ops->get_modes(dssdev, connector); - /* - * We can't retrieve modes, which can happen for instance for a DVI or - * VGA output with the DDC bus unconnected. The KMS core will add the - * default modes. - */ + /* We can't retrieve modes. The KMS core will add the default modes. */ return 0; } @@ -290,7 +157,6 @@ struct drm_connector *omap_connector_init(struct drm_device *dev, { struct drm_connector *connector = NULL; struct omap_connector *omap_connector; - struct omap_dss_device *dssdev; DBG("%s", output->name); @@ -308,24 +174,6 @@ struct drm_connector *omap_connector_init(struct drm_device *dev, omap_connector_get_type(output)); drm_connector_helper_add(connector, &omap_connector_helper_funcs); - /* - * Initialize connector status handling. First try to find a device that - * supports hot-plug reporting. If it fails, fall back to a device that - * support polling. If that fails too, we don't support hot-plug - * detection at all. - */ - dssdev = omap_connector_find_device(connector, OMAP_DSS_DEVICE_OP_HPD); - if (dssdev) { - omap_connector->hpd = omapdss_device_get(dssdev); - connector->polled = DRM_CONNECTOR_POLL_HPD; - } else { - dssdev = omap_connector_find_device(connector, - OMAP_DSS_DEVICE_OP_DETECT); - if (dssdev) - connector->polled = DRM_CONNECTOR_POLL_CONNECT | - DRM_CONNECTOR_POLL_DISCONNECT; - } - return connector; fail: diff --git a/drivers/gpu/drm/omapdrm/omap_connector.h b/drivers/gpu/drm/omapdrm/omap_connector.h index 4aa5608f4bbe..0ecd4f1655b7 100644 --- a/drivers/gpu/drm/omapdrm/omap_connector.h +++ b/drivers/gpu/drm/omapdrm/omap_connector.h @@ -21,8 +21,6 @@ struct omap_dss_device; struct drm_connector *omap_connector_init(struct drm_device *dev, struct omap_dss_device *output, struct drm_encoder *encoder); -void omap_connector_enable_hpd(struct drm_connector *connector); -void omap_connector_disable_hpd(struct drm_connector *connector); enum drm_mode_status omap_connector_mode_fixup(struct omap_dss_device *dssdev, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 47afa37055b3..e6a065030523 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -422,9 +422,7 @@ static void omap_modeset_enable_external_hpd(struct drm_device *ddev) if (!connector) continue; - if (priv->pipes[i].output->next) - omap_connector_enable_hpd(connector); - else + if (priv->pipes[i].output->bridge) drm_bridge_connector_enable_hpd(connector); } } @@ -443,9 +441,7 @@ static void omap_modeset_disable_external_hpd(struct drm_device *ddev) if (!connector) continue; - if (priv->pipes[i].output->next) - omap_connector_disable_hpd(connector); - else + if (priv->pipes[i].output->bridge) drm_bridge_connector_disable_hpd(connector); } }