Contributors: 20
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Hai Li |
769 |
66.52% |
3 |
9.38% |
| Rob Clark |
98 |
8.48% |
1 |
3.12% |
| Dmitry Eremin-Solenikov |
58 |
5.02% |
6 |
18.75% |
| Archit Taneja |
40 |
3.46% |
5 |
15.62% |
| Miaoqian Lin |
29 |
2.51% |
1 |
3.12% |
| Johan Hovold |
28 |
2.42% |
1 |
3.12% |
| Loic Poulain |
22 |
1.90% |
2 |
6.25% |
| Vinod Koul |
19 |
1.64% |
1 |
3.12% |
| Abhinav Kumar |
17 |
1.47% |
1 |
3.12% |
| SF Markus Elfring |
14 |
1.21% |
1 |
3.12% |
| Lloyd Atkinson |
12 |
1.04% |
1 |
3.12% |
| Christophe Jaillet |
11 |
0.95% |
1 |
3.12% |
| Sean Paul |
7 |
0.61% |
1 |
3.12% |
| Chandan Uddaraju |
7 |
0.61% |
1 |
3.12% |
| Kalyan Thota |
6 |
0.52% |
1 |
3.12% |
| Gustavo A. R. Silva |
6 |
0.52% |
1 |
3.12% |
| Mamta Shukla |
5 |
0.43% |
1 |
3.12% |
| Angelo G. Del Regno |
4 |
0.35% |
1 |
3.12% |
| Thomas Gleixner |
2 |
0.17% |
1 |
3.12% |
| Dan Carpenter |
2 |
0.17% |
1 |
3.12% |
| Total |
1156 |
|
32 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*/
#include "dsi.h"
#include "dsi_cfg.h"
bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
{
unsigned long host_flags = msm_dsi_host_get_mode_flags(msm_dsi->host);
return !(host_flags & MIPI_DSI_MODE_VIDEO);
}
struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{
return msm_dsi_host_get_dsc_config(msm_dsi->host);
}
static int dsi_get_phy(struct msm_dsi *msm_dsi)
{
struct platform_device *pdev = msm_dsi->pdev;
struct platform_device *phy_pdev;
struct device_node *phy_node;
phy_node = of_parse_phandle(pdev->dev.of_node, "phys", 0);
if (!phy_node) {
DRM_DEV_ERROR(&pdev->dev, "cannot find phy device\n");
return -ENXIO;
}
phy_pdev = of_find_device_by_node(phy_node);
if (phy_pdev) {
msm_dsi->phy = platform_get_drvdata(phy_pdev);
msm_dsi->phy_dev = &phy_pdev->dev;
}
of_node_put(phy_node);
if (!phy_pdev) {
DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
return -EPROBE_DEFER;
}
if (!msm_dsi->phy) {
put_device(&phy_pdev->dev);
DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
return -EPROBE_DEFER;
}
return 0;
}
static void dsi_destroy(struct msm_dsi *msm_dsi)
{
if (!msm_dsi)
return;
msm_dsi_manager_unregister(msm_dsi);
if (msm_dsi->phy_dev) {
put_device(msm_dsi->phy_dev);
msm_dsi->phy = NULL;
msm_dsi->phy_dev = NULL;
}
if (msm_dsi->host) {
msm_dsi_host_destroy(msm_dsi->host);
msm_dsi->host = NULL;
}
platform_set_drvdata(msm_dsi->pdev, NULL);
}
static struct msm_dsi *dsi_init(struct platform_device *pdev)
{
struct msm_dsi *msm_dsi;
int ret;
if (!pdev)
return ERR_PTR(-ENXIO);
msm_dsi = devm_kzalloc(&pdev->dev, sizeof(*msm_dsi), GFP_KERNEL);
if (!msm_dsi)
return ERR_PTR(-ENOMEM);
DBG("dsi probed=%p", msm_dsi);
msm_dsi->id = -1;
msm_dsi->pdev = pdev;
platform_set_drvdata(pdev, msm_dsi);
/* Init dsi host */
ret = msm_dsi_host_init(msm_dsi);
if (ret)
goto destroy_dsi;
/* GET dsi PHY */
ret = dsi_get_phy(msm_dsi);
if (ret)
goto destroy_dsi;
/* Register to dsi manager */
ret = msm_dsi_manager_register(msm_dsi);
if (ret)
goto destroy_dsi;
return msm_dsi;
destroy_dsi:
dsi_destroy(msm_dsi);
return ERR_PTR(ret);
}
static int dsi_bind(struct device *dev, struct device *master, void *data)
{
struct msm_drm_private *priv = dev_get_drvdata(master);
struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
priv->dsi[msm_dsi->id] = msm_dsi;
return 0;
}
static void dsi_unbind(struct device *dev, struct device *master,
void *data)
{
struct msm_drm_private *priv = dev_get_drvdata(master);
struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
priv->dsi[msm_dsi->id] = NULL;
}
static const struct component_ops dsi_ops = {
.bind = dsi_bind,
.unbind = dsi_unbind,
};
int dsi_dev_attach(struct platform_device *pdev)
{
return component_add(&pdev->dev, &dsi_ops);
}
void dsi_dev_detach(struct platform_device *pdev)
{
component_del(&pdev->dev, &dsi_ops);
}
static int dsi_dev_probe(struct platform_device *pdev)
{
struct msm_dsi *msm_dsi;
DBG("");
msm_dsi = dsi_init(pdev);
if (IS_ERR(msm_dsi)) {
/* Don't fail the bind if the dsi port is not connected */
if (PTR_ERR(msm_dsi) == -ENODEV)
return 0;
else
return PTR_ERR(msm_dsi);
}
return 0;
}
static int dsi_dev_remove(struct platform_device *pdev)
{
struct msm_dsi *msm_dsi = platform_get_drvdata(pdev);
DBG("");
dsi_destroy(msm_dsi);
return 0;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,mdss-dsi-ctrl", .data = NULL /* autodetect cfg */ },
{ .compatible = "qcom,dsi-ctrl-6g-qcm2290", .data = &qcm2290_dsi_cfg_handler },
{}
};
static const struct dev_pm_ops dsi_pm_ops = {
SET_RUNTIME_PM_OPS(msm_dsi_runtime_suspend, msm_dsi_runtime_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
static struct platform_driver dsi_driver = {
.probe = dsi_dev_probe,
.remove = dsi_dev_remove,
.driver = {
.name = "msm_dsi",
.of_match_table = dt_match,
.pm = &dsi_pm_ops,
},
};
void __init msm_dsi_register(void)
{
DBG("");
msm_dsi_phy_driver_register();
platform_driver_register(&dsi_driver);
}
void __exit msm_dsi_unregister(void)
{
DBG("");
msm_dsi_phy_driver_unregister();
platform_driver_unregister(&dsi_driver);
}
int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
struct drm_encoder *encoder)
{
struct msm_drm_private *priv;
int ret;
if (WARN_ON(!encoder) || WARN_ON(!msm_dsi) || WARN_ON(!dev))
return -EINVAL;
priv = dev->dev_private;
if (priv->num_bridges == ARRAY_SIZE(priv->bridges)) {
DRM_DEV_ERROR(dev->dev, "too many bridges\n");
return -ENOSPC;
}
msm_dsi->dev = dev;
ret = msm_dsi_host_modeset_init(msm_dsi->host, dev);
if (ret) {
DRM_DEV_ERROR(dev->dev, "failed to modeset init host: %d\n", ret);
goto fail;
}
if (msm_dsi_is_bonded_dsi(msm_dsi) &&
!msm_dsi_is_master_dsi(msm_dsi)) {
/*
* Do not return an eror here,
* Just skip creating encoder/connector for the slave-DSI.
*/
return 0;
}
msm_dsi->encoder = encoder;
msm_dsi->bridge = msm_dsi_manager_bridge_init(msm_dsi->id);
if (IS_ERR(msm_dsi->bridge)) {
ret = PTR_ERR(msm_dsi->bridge);
DRM_DEV_ERROR(dev->dev, "failed to create dsi bridge: %d\n", ret);
msm_dsi->bridge = NULL;
goto fail;
}
ret = msm_dsi_manager_ext_bridge_init(msm_dsi->id);
if (ret) {
DRM_DEV_ERROR(dev->dev,
"failed to create dsi connector: %d\n", ret);
goto fail;
}
priv->bridges[priv->num_bridges++] = msm_dsi->bridge;
return 0;
fail:
/* bridge/connector are normally destroyed by drm: */
if (msm_dsi->bridge) {
msm_dsi_manager_bridge_destroy(msm_dsi->bridge);
msm_dsi->bridge = NULL;
}
return ret;
}
void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
{
msm_dsi_host_snapshot(disp_state, msm_dsi->host);
msm_dsi_phy_snapshot(disp_state, msm_dsi->phy);
}