evie/android_kernel_oneplus_msm8998
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drm/msm: support shutdown sequence on msm driver

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Add shutdown sequence in msm driver to turn off
all connectors/bridge gracefully. That will allow
the graceful shutdown for dsi panel.

Change-Id: I055bd57a45706478c785b7a3c41bf7623dd8d2e7
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
This commit is contained in:
Lakshmi Narayana Kalavala 2018-02-26 15:46:57 -08:00
parent 07324253e2
commit 4f2aa096ba
3 changed files with 33 additions and 2 deletions
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7
drivers/gpu/drm/msm/msm_atomic.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
* Copyright (C) 2014 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
@ -562,6 +562,11 @@ int msm_atomic_commit(struct drm_device *dev,
struct msm_commit *commit;
int i, ret;
if (!priv || priv->shutdown_in_progress) {
DRM_ERROR("priv is null or shutdwon is in-progress\n");
return -EINVAL;
}
SDE_ATRACE_BEGIN("atomic_commit");
ret = drm_atomic_helper_prepare_planes(dev, state);
if (ret) {

25
drivers/gpu/drm/msm/msm_drv.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
@ -2199,6 +2199,28 @@ static const struct platform_device_id msm_id[] = {
{ }
};
static void msm_pdev_shutdown(struct platform_device *pdev)
{
struct drm_device *ddev = platform_get_drvdata(pdev);
struct msm_drm_private *priv = NULL;
if (!ddev) {
DRM_ERROR("invalid drm device node\n");
return;
}
priv = ddev->dev_private;
if (!priv) {
DRM_ERROR("invalid msm drm private node\n");
return;
}
msm_lastclose(ddev);
/* set this after lastclose to allow kickoff from lastclose */
priv->shutdown_in_progress = true;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,mdp" }, /* mdp4 */
{ .compatible = "qcom,sde-kms" }, /* sde */
@ -2209,6 +2231,7 @@ MODULE_DEVICE_TABLE(of, dt_match);
static struct platform_driver msm_platform_driver = {
.probe = msm_pdev_probe,
.remove = msm_pdev_remove,
.shutdown = msm_pdev_shutdown,
.driver = {
.name = "msm_drm",
.of_match_table = dt_match,

3
drivers/gpu/drm/msm/msm_drv.h
View file

@ -375,6 +375,9 @@ struct msm_drm_private {
/* list of clients waiting for events */
struct list_head client_event_list;
/* update the flag when msm driver receives shutdown notification */
bool shutdown_in_progress;
};
struct msm_format {