From patchwork Sun Feb 10 13:10:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 10804761 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 ADA5E14E1 for ; Sun, 10 Feb 2019 13:12:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9D7AA29F95 for ; Sun, 10 Feb 2019 13:12:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 91C8829F99; Sun, 10 Feb 2019 13:12:46 +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 E5C1C29F95 for ; Sun, 10 Feb 2019 13:12:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 67D976E0EA; Sun, 10 Feb 2019 13:12:44 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.domeneshop.no (smtp.domeneshop.no [IPv6:2a01:5b40:0:3005::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id C79756E0EA for ; Sun, 10 Feb 2019 13:12:43 +0000 (UTC) Received: from 211.81-166-168.customer.lyse.net ([81.166.168.211]:41944 helo=localhost.localdomain) by smtp.domeneshop.no with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.84_2) (envelope-from ) id 1gsosp-00071t-4R; Sun, 10 Feb 2019 14:10:55 +0100 From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 10/12] drm/tinydrm: Remove tinydrm_device Date: Sun, 10 Feb 2019 14:10:37 +0100 Message-Id: <20190210131039.52664-11-noralf@tronnes.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190210131039.52664-1-noralf@tronnes.org> References: <20190210131039.52664-1-noralf@tronnes.org> MIME-Version: 1.0 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: daniel.vetter@ffwll.ch, Sam Ravnborg , david@lechnology.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP No more users left so it can go alongside its helpers. Update the tinydrm docs description and remove todo entry. Signed-off-by: Noralf Trønnes Reviewed-by: Sam Ravnborg Acked-by: Daniel Vetter --- Documentation/gpu/tinydrm.rst | 32 ++-- Documentation/gpu/todo.rst | 4 - drivers/gpu/drm/tinydrm/core/Makefile | 2 +- drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 169 ------------------ .../gpu/drm/tinydrm/core/tinydrm-helpers.c | 2 + include/drm/tinydrm/tinydrm.h | 42 ----- 6 files changed, 13 insertions(+), 238 deletions(-) delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-core.c delete mode 100644 include/drm/tinydrm/tinydrm.h diff --git a/Documentation/gpu/tinydrm.rst b/Documentation/gpu/tinydrm.rst index a913644bfc19..33a41544f659 100644 --- a/Documentation/gpu/tinydrm.rst +++ b/Documentation/gpu/tinydrm.rst @@ -1,27 +1,12 @@ -========================== -drm/tinydrm Driver library -========================== +============================ +drm/tinydrm Tiny DRM drivers +============================ -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c - :doc: overview +tinydrm is a collection of DRM drivers that are so small they can fit in a +single source file. -Core functionality -================== - -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c - :doc: core - -.. kernel-doc:: include/drm/tinydrm/tinydrm.h - :internal: - -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c - :export: - -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c - :export: - -Additional helpers -================== +Helpers +======= .. kernel-doc:: include/drm/tinydrm/tinydrm-helpers.h :internal: @@ -29,6 +14,9 @@ Additional helpers .. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c :export: +.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c + :export: + MIPI DBI Compatible Controllers =============================== diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index cda4a37a02f0..b34f59a0d3d5 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -473,10 +473,6 @@ those drivers as simple as possible, so lots of room for refactoring: one of the ideas for having a shared dsi/dbi helper, abstracting away the transport details more. -- Quick aside: The unregister devm stuff is kinda getting the lifetimes of - a drm_device wrong. Doesn't matter, since everyone else gets it wrong - too :-) - Contact: Noralf Trønnes, Daniel Vetter AMD DC Display Driver diff --git a/drivers/gpu/drm/tinydrm/core/Makefile b/drivers/gpu/drm/tinydrm/core/Makefile index fb221e6f8885..6f8f764560e0 100644 --- a/drivers/gpu/drm/tinydrm/core/Makefile +++ b/drivers/gpu/drm/tinydrm/core/Makefile @@ -1,3 +1,3 @@ -tinydrm-y := tinydrm-core.o tinydrm-pipe.o tinydrm-helpers.o +tinydrm-y := tinydrm-pipe.o tinydrm-helpers.o obj-$(CONFIG_DRM_TINYDRM) += tinydrm.o diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c b/drivers/gpu/drm/tinydrm/core/tinydrm-core.c deleted file mode 100644 index 2366a33fd62f..000000000000 --- a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (C) 2016 Noralf Trønnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/** - * DOC: overview - * - * This library provides driver helpers for very simple display hardware. - * - * It is based on &drm_simple_display_pipe coupled with a &drm_connector which - * has only one fixed &drm_display_mode. The framebuffers are backed by the - * cma helper and have support for framebuffer flushing (dirty). - * fbdev support is also included. - * - */ - -/** - * DOC: core - * - * The driver allocates &tinydrm_device, initializes it using - * devm_tinydrm_init(), sets up the pipeline using tinydrm_display_pipe_init() - * and registers the DRM device using devm_tinydrm_register(). - */ - -static const struct drm_mode_config_funcs tinydrm_mode_config_funcs = { - .fb_create = drm_gem_fb_create_with_dirty, - .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, -}; - -static int tinydrm_init(struct device *parent, struct tinydrm_device *tdev, - struct drm_driver *driver) -{ - struct drm_device *drm; - - /* - * We don't embed drm_device, because that prevent us from using - * devm_kzalloc() to allocate tinydrm_device in the driver since - * drm_dev_put() frees the structure. The devm_ functions provide - * for easy error handling. - */ - drm = drm_dev_alloc(driver, parent); - if (IS_ERR(drm)) - return PTR_ERR(drm); - - tdev->drm = drm; - drm->dev_private = tdev; - drm_mode_config_init(drm); - drm->mode_config.funcs = &tinydrm_mode_config_funcs; - drm->mode_config.allow_fb_modifiers = true; - - return 0; -} - -static void tinydrm_fini(struct tinydrm_device *tdev) -{ - drm_mode_config_cleanup(tdev->drm); - tdev->drm->dev_private = NULL; - drm_dev_put(tdev->drm); -} - -static void devm_tinydrm_release(void *data) -{ - tinydrm_fini(data); -} - -/** - * devm_tinydrm_init - Initialize tinydrm device - * @parent: Parent device object - * @tdev: tinydrm device - * @driver: DRM driver - * - * This function initializes @tdev, the underlying DRM device and it's - * mode_config. Resources will be automatically freed on driver detach (devres) - * using drm_mode_config_cleanup() and drm_dev_put(). - * - * Returns: - * Zero on success, negative error code on failure. - */ -int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev, - struct drm_driver *driver) -{ - int ret; - - ret = tinydrm_init(parent, tdev, driver); - if (ret) - return ret; - - ret = devm_add_action(parent, devm_tinydrm_release, tdev); - if (ret) - tinydrm_fini(tdev); - - return ret; -} -EXPORT_SYMBOL(devm_tinydrm_init); - -static int tinydrm_register(struct tinydrm_device *tdev) -{ - struct drm_device *drm = tdev->drm; - int ret; - - ret = drm_dev_register(tdev->drm, 0); - if (ret) - return ret; - - ret = drm_fbdev_generic_setup(drm, 0); - if (ret) - DRM_ERROR("Failed to initialize fbdev: %d\n", ret); - - return 0; -} - -static void tinydrm_unregister(struct tinydrm_device *tdev) -{ - drm_atomic_helper_shutdown(tdev->drm); - drm_dev_unregister(tdev->drm); -} - -static void devm_tinydrm_register_release(void *data) -{ - tinydrm_unregister(data); -} - -/** - * devm_tinydrm_register - Register tinydrm device - * @tdev: tinydrm device - * - * This function registers the underlying DRM device and fbdev. - * These resources will be automatically unregistered on driver detach (devres) - * and the display pipeline will be disabled. - * - * Returns: - * Zero on success, negative error code on failure. - */ -int devm_tinydrm_register(struct tinydrm_device *tdev) -{ - struct device *dev = tdev->drm->dev; - int ret; - - ret = tinydrm_register(tdev); - if (ret) - return ret; - - ret = devm_add_action(dev, devm_tinydrm_register_release, tdev); - if (ret) - tinydrm_unregister(tdev); - - return ret; -} -EXPORT_SYMBOL(devm_tinydrm_register); - -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c index 2737b6fdadc8..d7b38dfb6438 100644 --- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c +++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c @@ -365,3 +365,5 @@ int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz, EXPORT_SYMBOL(tinydrm_spi_transfer); #endif /* CONFIG_SPI */ + +MODULE_LICENSE("GPL"); diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h deleted file mode 100644 index ee9b17759391..000000000000 --- a/include/drm/tinydrm/tinydrm.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (C) 2016 Noralf Trønnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __LINUX_TINYDRM_H -#define __LINUX_TINYDRM_H - -#include - -struct drm_driver; - -/** - * struct tinydrm_device - tinydrm device - */ -struct tinydrm_device { - /** - * @drm: DRM device - */ - struct drm_device *drm; - - /** - * @pipe: Display pipe structure - */ - struct drm_simple_display_pipe pipe; -}; - -static inline struct tinydrm_device * -pipe_to_tinydrm(struct drm_simple_display_pipe *pipe) -{ - return container_of(pipe, struct tinydrm_device, pipe); -} - -int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev, - struct drm_driver *driver); -int devm_tinydrm_register(struct tinydrm_device *tdev); - -#endif /* __LINUX_TINYDRM_H */