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drm/vc4: Use the fbdev_cma helpers

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Keep the fbdev_cma pointer around so we can use it on hotplog and close
to ensure the frame buffer console is in a useful state.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Derek Foreman
2015-07-02 11:19:54 -05:00
committed by Eric Anholt
parent c8b75bca92
commit 48666d5631
3 changed files with 31 additions and 3 deletions
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14
drivers/gpu/drm/vc4/vc4_drv.c
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@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include "drm_fb_cma_helper.h"
#include "vc4_drv.h"
#include "vc4_regs.h"
@@ -49,6 +50,14 @@ static void vc4_drm_preclose(struct drm_device *dev, struct drm_file *file)
vc4_cancel_page_flip(crtc, file);
}
static void vc4_lastclose(struct drm_device *dev)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
if (vc4->fbdev)
drm_fbdev_cma_restore_mode(vc4->fbdev);
}
static const struct file_operations vc4_drm_fops = {
.owner = THIS_MODULE,
.open = drm_open,
@@ -71,6 +80,7 @@ static struct drm_driver vc4_drm_driver = {
DRIVER_ATOMIC |
DRIVER_GEM |
DRIVER_PRIME),
.lastclose = vc4_lastclose,
.preclose = vc4_drm_preclose,
.enable_vblank = vc4_enable_vblank,
@@ -199,6 +209,10 @@ static void vc4_drm_unbind(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm = platform_get_drvdata(pdev);
struct vc4_dev *vc4 = to_vc4_dev(drm);
if (vc4->fbdev)
drm_fbdev_cma_fini(vc4->fbdev);
drm_mode_config_cleanup(drm);