From patchwork Thu Sep 6 21:43:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lyude Paul X-Patchwork-Id: 10591127 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 01A11139B for ; Thu, 6 Sep 2018 21:44:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DE6162B0F5 for ; Thu, 6 Sep 2018 21:44:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D23D82B0B9; Thu, 6 Sep 2018 21:44:18 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 4F0822B0B9 for ; Thu, 6 Sep 2018 21:44:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B953D6E796; Thu, 6 Sep 2018 21:43:46 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1D8CE6E785; Thu, 6 Sep 2018 21:43:44 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 411C78077105; Thu, 6 Sep 2018 21:43:43 +0000 (UTC) Received: from malachite.bss.redhat.com (dhcp-10-20-1-11.bss.redhat.com [10.20.1.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id DAC2E50334; Thu, 6 Sep 2018 21:43:42 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org Subject: [PATCH v4 6/6] drm/nouveau: Refactor nvXX_backlight_init() Date: Thu, 6 Sep 2018 17:43:26 -0400 Message-Id: <20180906214328.24012-7-lyude@redhat.com> In-Reply-To: <20180906214328.24012-1-lyude@redhat.com> References: <20180906214328.24012-1-lyude@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Thu, 06 Sep 2018 21:43:43 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Thu, 06 Sep 2018 21:43:43 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'lyude@redhat.com' RCPT:'' X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Karol Herbst , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Ben Skeggs , Jeffery Miller MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP There's literally no difference between any of the backlight init functions besides the backlight properties they set and the backlight callbacks that they set, so move all of the duplicated backlight init code out of there and into nouveau_backlight_init(). This gets rid of a lot of copy pasta! Changes since v1: - Some of the pre-refactor callbacks were storing nv_encoder in callback data for the backlight devices that they registered, as opposed to nouveau_drm. This got missed and caused some bugs that didn't originally appear on my setup (NULL kernel derefs) for some reason. So, fix this by finding the nouveau_encoder in nouveau_backlight_init(), and using that as the callback data for all gens instead even if they don't care about the encoder. Signed-off-by: Lyude Paul Cc: Jeffery Miller Cc: Karol Herbst --- drivers/gpu/drm/nouveau/nouveau_backlight.c | 160 +++++++++----------- 1 file changed, 72 insertions(+), 88 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c index 01d08acac2f0..5f5be6368aed 100644 --- a/drivers/gpu/drm/nouveau/nouveau_backlight.c +++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c @@ -65,7 +65,8 @@ nouveau_get_backlight_name(char backlight_name[BL_NAME_SIZE], static int nv40_get_intensity(struct backlight_device *bd) { - struct nouveau_drm *drm = bl_get_data(bd); + struct nouveau_encoder *nv_encoder = bl_get_data(bd); + struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev); struct nvif_object *device = &drm->client.device.object; int val = (nvif_rd32(device, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK) >> 16; @@ -76,7 +77,8 @@ nv40_get_intensity(struct backlight_device *bd) static int nv40_set_intensity(struct backlight_device *bd) { - struct nouveau_drm *drm = bl_get_data(bd); + struct nouveau_encoder *nv_encoder = bl_get_data(bd); + struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev); struct nvif_object *device = &drm->client.device.object; int val = bd->props.brightness; int reg = nvif_rd32(device, NV40_PMC_BACKLIGHT); @@ -94,48 +96,20 @@ static const struct backlight_ops nv40_bl_ops = { }; static int -nv40_backlight_init(struct drm_connector *connector) +nv40_backlight_init(struct nouveau_encoder *encoder, + struct backlight_properties *props, + const struct backlight_ops **ops) { - struct nouveau_drm *drm = nouveau_drm(connector->dev); - struct nouveau_backlight *bl; + struct nouveau_drm *drm = nouveau_drm(encoder->base.base.dev); struct nvif_object *device = &drm->client.device.object; - struct backlight_properties props; - char backlight_name[BL_NAME_SIZE]; - int ret = 0; if (!(nvif_rd32(device, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK)) - return 0; - - bl = kzalloc(sizeof(*bl), GFP_KERNEL); - if (!bl) - return -ENOMEM; - - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_RAW; - props.max_brightness = 31; - if (!nouveau_get_backlight_name(backlight_name, bl)) { - NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n"); - goto fail_alloc; - } - - bl->dev = backlight_device_register(backlight_name, connector->kdev, - drm, &nv40_bl_ops, &props); - if (IS_ERR(bl->dev)) { - if (bl->id >= 0) - ida_simple_remove(&bl_ida, bl->id); - - ret = PTR_ERR(bl->dev); - goto fail_alloc; - } - - nouveau_connector(connector)->backlight = bl; - bl->dev->props.brightness = nv40_get_intensity(bl->dev); - backlight_update_status(bl->dev); + return -ENODEV; + props->type = BACKLIGHT_RAW; + props->max_brightness = 31; + *ops = &nv40_bl_ops; return 0; -fail_alloc: - kfree(bl); - return ret; } static int @@ -221,92 +195,102 @@ static const struct backlight_ops nva3_bl_ops = { }; static int -nv50_backlight_init(struct drm_connector *connector) +nv50_backlight_init(struct nouveau_encoder *nv_encoder, + struct backlight_properties *props, + const struct backlight_ops **ops) { - struct nouveau_drm *drm = nouveau_drm(connector->dev); + struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev); struct nvif_object *device = &drm->client.device.object; - struct nouveau_encoder *nv_encoder; - struct nouveau_backlight *bl; - struct backlight_properties props; - const struct backlight_ops *ops; - char backlight_name[BL_NAME_SIZE]; - int ret = 0; - - nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); - if (!nv_encoder) { - nv_encoder = find_encoder(connector, DCB_OUTPUT_DP); - if (!nv_encoder) - return -ENODEV; - } if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1))) - return 0; - - bl = kzalloc(sizeof(*bl), GFP_KERNEL); - if (!bl) - return -ENOMEM; + return -ENODEV; if (drm->client.device.info.chipset <= 0xa0 || drm->client.device.info.chipset == 0xaa || drm->client.device.info.chipset == 0xac) - ops = &nv50_bl_ops; + *ops = &nv50_bl_ops; else - ops = &nva3_bl_ops; + *ops = &nva3_bl_ops; - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_RAW; - props.max_brightness = 100; - if (!nouveau_get_backlight_name(backlight_name, bl)) { - NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n"); - goto fail_alloc; - } + props->type = BACKLIGHT_RAW; + props->max_brightness = 100; - bl->dev = backlight_device_register(backlight_name, connector->kdev, - nv_encoder, ops, &props); - if (IS_ERR(bl->dev)) { - if (bl->id >= 0) - ida_simple_remove(&bl_ida, bl->id); - - ret = PTR_ERR(bl->dev); - goto fail_alloc; - } - - nouveau_connector(connector)->backlight = bl; - bl->dev->props.brightness = bl->dev->ops->get_brightness(bl->dev); - backlight_update_status(bl->dev); return 0; - -fail_alloc: - kfree(bl); - return ret; } int nouveau_backlight_init(struct drm_connector *connector) { struct nouveau_drm *drm = nouveau_drm(connector->dev); + struct nouveau_backlight *bl; + struct nouveau_encoder *nv_encoder = NULL; struct nvif_device *device = &drm->client.device; + char backlight_name[BL_NAME_SIZE]; + struct backlight_properties props = {0}; + const struct backlight_ops *ops; + int ret; if (apple_gmux_present()) { NV_INFO_ONCE(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n"); return 0; } - if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS && - connector->connector_type != DRM_MODE_CONNECTOR_eDP) + if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) + nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); + else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) + nv_encoder = find_encoder(connector, DCB_OUTPUT_DP); + else + return 0; + + if (!nv_encoder) return 0; switch (device->info.family) { case NV_DEVICE_INFO_V0_CURIE: - return nv40_backlight_init(connector); + ret = nv40_backlight_init(nv_encoder, &props, &ops); + break; case NV_DEVICE_INFO_V0_TESLA: case NV_DEVICE_INFO_V0_FERMI: case NV_DEVICE_INFO_V0_KEPLER: case NV_DEVICE_INFO_V0_MAXWELL: - return nv50_backlight_init(connector); + ret = nv50_backlight_init(nv_encoder, &props, &ops); + break; default: return 0; } + + if (ret == -ENODEV) + return 0; + else if (ret) + return ret; + + bl = kzalloc(sizeof(*bl), GFP_KERNEL); + if (!bl) + return -ENOMEM; + + if (!nouveau_get_backlight_name(backlight_name, bl)) { + NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n"); + goto fail_alloc; + } + + bl->dev = backlight_device_register(backlight_name, connector->kdev, + nv_encoder, ops, &props); + if (IS_ERR(bl->dev)) { + if (bl->id >= 0) + ida_simple_remove(&bl_ida, bl->id); + ret = PTR_ERR(bl->dev); + goto fail_alloc; + } + + nouveau_connector(connector)->backlight = bl; + bl->dev->props.brightness = bl->dev->ops->get_brightness(bl->dev); + backlight_update_status(bl->dev); + + return 0; + +fail_alloc: + kfree(bl); + return ret; } void