Contributors: 27
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Sascha Hauer |
285 |
22.82% |
4 |
5.80% |
| Lucas Stach |
220 |
17.61% |
7 |
10.14% |
| Russell King |
209 |
16.73% |
11 |
15.94% |
| Philipp Zabel |
170 |
13.61% |
10 |
14.49% |
| Liu Ying |
148 |
11.85% |
6 |
8.70% |
| Shawn Guo |
71 |
5.68% |
2 |
2.90% |
| Sebastian Reichel |
57 |
4.56% |
1 |
1.45% |
| Noralf Trönnes |
13 |
1.04% |
2 |
2.90% |
| Javier Martinez Canillas |
9 |
0.72% |
1 |
1.45% |
| Fabio Estevam |
9 |
0.72% |
2 |
2.90% |
| Maarten Lankhorst |
8 |
0.64% |
1 |
1.45% |
| Daniel Vetter |
8 |
0.64% |
5 |
7.25% |
| Dan Carpenter |
7 |
0.56% |
1 |
1.45% |
| Liviu Dudau |
5 |
0.40% |
1 |
1.45% |
| Sam Ravnborg |
5 |
0.40% |
1 |
1.45% |
| Jiada Wang |
4 |
0.32% |
1 |
1.45% |
| Danilo Krummrich |
4 |
0.32% |
1 |
1.45% |
| Mark Yao |
3 |
0.24% |
1 |
1.45% |
| Pan Bian |
3 |
0.24% |
1 |
1.45% |
| Thomas Zimmermann |
2 |
0.16% |
2 |
2.90% |
| Ville Syrjälä |
2 |
0.16% |
2 |
2.90% |
| Souptick Joarder |
2 |
0.16% |
1 |
1.45% |
| Thomas Wood |
1 |
0.08% |
1 |
1.45% |
| Rob Clark |
1 |
0.08% |
1 |
1.45% |
| Marek Vašut |
1 |
0.08% |
1 |
1.45% |
| Rob Herring |
1 |
0.08% |
1 |
1.45% |
| Laurent Pinchart |
1 |
0.08% |
1 |
1.45% |
| Total |
1249 |
|
69 |
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Freescale i.MX drm driver
*
* Copyright (C) 2011 Sascha Hauer, Pengutronix
*/
#include <linux/component.h>
#include <linux/device.h>
#include <linux/dma-buf.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <video/imx-ipu-v3.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fbdev_generic.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_of.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
#include "imx-drm.h"
#include "ipuv3-plane.h"
#define MAX_CRTC 4
static int legacyfb_depth = 16;
module_param(legacyfb_depth, int, 0444);
DEFINE_DRM_GEM_DMA_FOPS(imx_drm_driver_fops);
void imx_drm_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
EXPORT_SYMBOL_GPL(imx_drm_connector_destroy);
static int imx_drm_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state)
{
int ret;
ret = drm_atomic_helper_check(dev, state);
if (ret)
return ret;
/*
* Check modeset again in case crtc_state->mode_changed is
* updated in plane's ->atomic_check callback.
*/
ret = drm_atomic_helper_check_modeset(dev, state);
if (ret)
return ret;
/* Assign PRG/PRE channels and check if all constrains are satisfied. */
ret = ipu_planes_assign_pre(dev, state);
if (ret)
return ret;
return ret;
}
static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
.atomic_check = imx_drm_atomic_check,
.atomic_commit = drm_atomic_helper_commit,
};
static void imx_drm_atomic_commit_tail(struct drm_atomic_state *state)
{
struct drm_device *dev = state->dev;
struct drm_plane *plane;
struct drm_plane_state *old_plane_state, *new_plane_state;
bool plane_disabling = false;
int i;
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_planes(dev, state,
DRM_PLANE_COMMIT_ACTIVE_ONLY |
DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET);
drm_atomic_helper_commit_modeset_enables(dev, state);
for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
if (drm_atomic_plane_disabling(old_plane_state, new_plane_state))
plane_disabling = true;
}
/*
* The flip done wait is only strictly required by imx-drm if a deferred
* plane disable is in-flight. As the core requires blocking commits
* to wait for the flip it is done here unconditionally. This keeps the
* workitem around a bit longer than required for the majority of
* non-blocking commits, but we accept that for the sake of simplicity.
*/
drm_atomic_helper_wait_for_flip_done(dev, state);
if (plane_disabling) {
for_each_old_plane_in_state(state, plane, old_plane_state, i)
ipu_plane_disable_deferred(plane);
}
drm_atomic_helper_commit_hw_done(state);
}
static const struct drm_mode_config_helper_funcs imx_drm_mode_config_helpers = {
.atomic_commit_tail = imx_drm_atomic_commit_tail,
};
int imx_drm_encoder_parse_of(struct drm_device *drm,
struct drm_encoder *encoder, struct device_node *np)
{
uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np);
/*
* If we failed to find the CRTC(s) which this encoder is
* supposed to be connected to, it's because the CRTC has
* not been registered yet. Defer probing, and hope that
* the required CRTC is added later.
*/
if (crtc_mask == 0)
return -EPROBE_DEFER;
encoder->possible_crtcs = crtc_mask;
/* FIXME: cloning support not clear, disable it all for now */
encoder->possible_clones = 0;
return 0;
}
EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
static const struct drm_ioctl_desc imx_drm_ioctls[] = {
/* none so far */
};
static int imx_drm_dumb_create(struct drm_file *file_priv,
struct drm_device *drm,
struct drm_mode_create_dumb *args)
{
u32 width = args->width;
int ret;
args->width = ALIGN(width, 8);
ret = drm_gem_dma_dumb_create(file_priv, drm, args);
if (ret)
return ret;
args->width = width;
return ret;
}
static const struct drm_driver imx_drm_driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(imx_drm_dumb_create),
.ioctls = imx_drm_ioctls,
.num_ioctls = ARRAY_SIZE(imx_drm_ioctls),
.fops = &imx_drm_driver_fops,
.name = "imx-drm",
.desc = "i.MX DRM graphics",
.date = "20120507",
.major = 1,
.minor = 0,
.patchlevel = 0,
};
static int compare_of(struct device *dev, void *data)
{
struct device_node *np = data;
/* Special case for DI, dev->of_node may not be set yet */
if (strcmp(dev->driver->name, "imx-ipuv3-crtc") == 0) {
struct ipu_client_platformdata *pdata = dev->platform_data;
return pdata->of_node == np;
}
/* Special case for LDB, one device for two channels */
if (of_node_name_eq(np, "lvds-channel")) {
np = of_get_parent(np);
of_node_put(np);
}
return dev->of_node == np;
}
static int imx_drm_bind(struct device *dev)
{
struct drm_device *drm;
int ret;
drm = drm_dev_alloc(&imx_drm_driver, dev);
if (IS_ERR(drm))
return PTR_ERR(drm);
/*
* set max width and height as default value(4096x4096).
* this value would be used to check framebuffer size limitation
* at drm_mode_addfb().
*/
drm->mode_config.min_width = 1;
drm->mode_config.min_height = 1;
drm->mode_config.max_width = 4096;
drm->mode_config.max_height = 4096;
drm->mode_config.funcs = &imx_drm_mode_config_funcs;
drm->mode_config.helper_private = &imx_drm_mode_config_helpers;
drm->mode_config.normalize_zpos = true;
ret = drmm_mode_config_init(drm);
if (ret)
goto err_kms;
ret = drm_vblank_init(drm, MAX_CRTC);
if (ret)
goto err_kms;
dev_set_drvdata(dev, drm);
/* Now try and bind all our sub-components */
ret = component_bind_all(dev, drm);
if (ret)
goto err_kms;
drm_mode_config_reset(drm);
/*
* All components are now initialised, so setup the fb helper.
* The fb helper takes copies of key hardware information, so the
* crtcs/connectors/encoders must not change after this point.
*/
if (legacyfb_depth != 16 && legacyfb_depth != 32) {
dev_warn(dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n");
legacyfb_depth = 16;
}
drm_kms_helper_poll_init(drm);
ret = drm_dev_register(drm, 0);
if (ret)
goto err_poll_fini;
drm_fbdev_generic_setup(drm, legacyfb_depth);
return 0;
err_poll_fini:
drm_kms_helper_poll_fini(drm);
component_unbind_all(drm->dev, drm);
err_kms:
drm_dev_put(drm);
return ret;
}
static void imx_drm_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
component_unbind_all(drm->dev, drm);
drm_dev_put(drm);
dev_set_drvdata(dev, NULL);
}
static const struct component_master_ops imx_drm_ops = {
.bind = imx_drm_bind,
.unbind = imx_drm_unbind,
};
static int imx_drm_platform_probe(struct platform_device *pdev)
{
int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);
if (!ret)
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
return ret;
}
static int imx_drm_platform_remove(struct platform_device *pdev)
{
component_master_del(&pdev->dev, &imx_drm_ops);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int imx_drm_suspend(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
return drm_mode_config_helper_suspend(drm_dev);
}
static int imx_drm_resume(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
return drm_mode_config_helper_resume(drm_dev);
}
#endif
static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume);
static const struct of_device_id imx_drm_dt_ids[] = {
{ .compatible = "fsl,imx-display-subsystem", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, imx_drm_dt_ids);
static struct platform_driver imx_drm_pdrv = {
.probe = imx_drm_platform_probe,
.remove = imx_drm_platform_remove,
.driver = {
.name = "imx-drm",
.pm = &imx_drm_pm_ops,
.of_match_table = imx_drm_dt_ids,
},
};
static struct platform_driver * const drivers[] = {
&imx_drm_pdrv,
&ipu_drm_driver,
};
static int __init imx_drm_init(void)
{
if (drm_firmware_drivers_only())
return -ENODEV;
return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
module_init(imx_drm_init);
static void __exit imx_drm_exit(void)
{
platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(imx_drm_exit);
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("i.MX drm driver core");
MODULE_LICENSE("GPL");