f37cd5e809
This patch adds component framework support to resolve the probe order issue. Until now, exynos drm had used codes specific to exynos drm to resolve that issue so with this patch, the specific codes are removed. Signed-off-by: Inki Dae <inki.dae@samsung.com>
162 lines
3.6 KiB
C
162 lines
3.6 KiB
C
/* exynos_drm_core.c
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Author:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <drm/drmP.h>
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#include "exynos_drm_drv.h"
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#include "exynos_drm_crtc.h"
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#include "exynos_drm_encoder.h"
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#include "exynos_drm_fbdev.h"
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static LIST_HEAD(exynos_drm_subdrv_list);
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int exynos_drm_create_enc_conn(struct drm_device *dev,
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struct exynos_drm_display *display)
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{
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struct drm_encoder *encoder;
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int ret;
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unsigned long possible_crtcs = 0;
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ret = exynos_drm_crtc_get_pipe_from_type(dev, display->type);
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if (ret < 0)
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return ret;
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possible_crtcs |= 1 << ret;
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/* create and initialize a encoder for this sub driver. */
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encoder = exynos_drm_encoder_create(dev, display, possible_crtcs);
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if (!encoder) {
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DRM_ERROR("failed to create encoder\n");
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return -EFAULT;
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}
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display->encoder = encoder;
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ret = display->ops->create_connector(display, encoder);
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if (ret) {
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DRM_ERROR("failed to create connector ret = %d\n", ret);
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goto err_destroy_encoder;
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}
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return 0;
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err_destroy_encoder:
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encoder->funcs->destroy(encoder);
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return ret;
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}
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int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
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{
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if (!subdrv)
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return -EINVAL;
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list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
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return 0;
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}
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EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
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int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
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{
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if (!subdrv)
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return -EINVAL;
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list_del(&subdrv->list);
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return 0;
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}
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EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
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int exynos_drm_device_subdrv_probe(struct drm_device *dev)
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{
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struct exynos_drm_subdrv *subdrv, *n;
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int err;
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if (!dev)
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return -EINVAL;
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list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
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if (subdrv->probe) {
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subdrv->drm_dev = dev;
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/*
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* this probe callback would be called by sub driver
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* after setting of all resources to this sub driver,
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* such as clock, irq and register map are done.
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*/
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err = subdrv->probe(dev, subdrv->dev);
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if (err) {
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DRM_DEBUG("exynos drm subdrv probe failed.\n");
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list_del(&subdrv->list);
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continue;
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}
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}
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_probe);
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int exynos_drm_device_subdrv_remove(struct drm_device *dev)
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{
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struct exynos_drm_subdrv *subdrv;
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if (!dev) {
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WARN(1, "Unexpected drm device unregister!\n");
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return -EINVAL;
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}
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list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
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if (subdrv->remove)
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subdrv->remove(dev, subdrv->dev);
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_remove);
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int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
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{
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struct exynos_drm_subdrv *subdrv;
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int ret;
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list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
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if (subdrv->open) {
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ret = subdrv->open(dev, subdrv->dev, file);
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if (ret)
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goto err;
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}
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}
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return 0;
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err:
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list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
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if (subdrv->close)
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subdrv->close(dev, subdrv->dev, file);
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}
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return ret;
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}
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EXPORT_SYMBOL_GPL(exynos_drm_subdrv_open);
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void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
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{
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struct exynos_drm_subdrv *subdrv;
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list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
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if (subdrv->close)
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subdrv->close(dev, subdrv->dev, file);
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}
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}
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EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close);
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