Add a basic PM support to mgag200 driver. As there is no hardware specific init codes for this device, the callbacks are written in a fairly simple way.
Signed-off-by: Takashi Iwai tiwai@suse.de --- drivers/gpu/drm/mgag200/mgag200_drv.c | 41 +++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index 7a71ac729a81..8ae36c1ab4d2 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/console.h> #include <drm/drmP.h> +#include <drm/drm_crtc_helper.h>
#include "mgag200_drv.h"
@@ -81,6 +82,45 @@ static void mga_pci_remove(struct pci_dev *pdev) drm_put_dev(dev); }
+#ifdef CONFIG_PM_SLEEP +static int mgag200_pm_suspend(struct device *dev) +{ + struct drm_device *drm_dev = dev_get_drvdata(dev); + struct mga_device *mdev = drm_dev->dev_private; + + drm_kms_helper_poll_disable(drm_dev); + + if (mdev->mfbdev) { + console_lock(); + drm_fb_helper_set_suspend(&mdev->mfbdev->helper, 1); + console_unlock(); + } + + return 0; +} + +static int mgag200_pm_resume(struct device *dev) +{ + struct drm_device *drm_dev = dev_get_drvdata(dev); + struct mga_device *mdev = drm_dev->dev_private; + + drm_helper_resume_force_mode(drm_dev); + + if (mdev->mfbdev) { + console_lock(); + drm_fb_helper_set_suspend(&mdev->mfbdev->helper, 0); + console_unlock(); + } + + drm_kms_helper_poll_enable(drm_dev); + return 0; +} +#endif + +static const struct dev_pm_ops mgag200_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(mgag200_pm_suspend, mgag200_pm_resume) +}; + static const struct file_operations mgag200_driver_fops = { .owner = THIS_MODULE, .open = drm_open, @@ -116,6 +156,7 @@ static struct pci_driver mgag200_pci_driver = { .id_table = pciidlist, .probe = mga_pci_probe, .remove = mga_pci_remove, + .driver.pm = &mgag200_pm_ops, };
static int __init mgag200_init(void)