drm/nouveau: don't suspend/resume display on runtime s/r

This should ensure we don't hit a locking problem when someone
wakes us up via a connector, we should never go into suspend
while the display is on anyways.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 61ab94799660826fbea92f8bf09249687a63d747..7147b87c5e5d695d605c717bda5ae486941fab2a 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -510,13 +510,13 @@ nouveau_drm_remove(struct pci_dev *pdev)
 }
 
 static int
-nouveau_do_suspend(struct drm_device *dev)
+nouveau_do_suspend(struct drm_device *dev, bool runtime)
 {
        struct nouveau_drm *drm = nouveau_drm(dev);
        struct nouveau_cli *cli;
        int ret;
 
-       if (dev->mode_config.num_crtc) {
+       if (dev->mode_config.num_crtc && !runtime) {
                NV_INFO(drm, "suspending display...\n");
                ret = nouveau_display_suspend(dev);
                if (ret)
@@ -590,7 +590,7 @@ int nouveau_pmops_suspend(struct device *dev)
        if (drm_dev->mode_config.num_crtc)
                nouveau_fbcon_set_suspend(drm_dev, 1);
 
-       ret = nouveau_do_suspend(drm_dev);
+       ret = nouveau_do_suspend(drm_dev, false);
        if (ret)
                return ret;
 
@@ -670,7 +670,7 @@ static int nouveau_pmops_freeze(struct device *dev)
        if (drm_dev->mode_config.num_crtc)
                nouveau_fbcon_set_suspend(drm_dev, 1);
 
-       ret = nouveau_do_suspend(drm_dev);
+       ret = nouveau_do_suspend(drm_dev, false);
        return ret;
 }
 
@@ -904,7 +904,7 @@ static int nouveau_pmops_runtime_suspend(struct device *dev)
        drm_kms_helper_poll_disable(drm_dev);
        vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
        nouveau_switcheroo_optimus_dsm();
-       ret = nouveau_do_suspend(drm_dev);
+       ret = nouveau_do_suspend(drm_dev, true);
        pci_save_state(pdev);
        pci_disable_device(pdev);
        pci_set_power_state(pdev, PCI_D3cold);
@@ -930,8 +930,6 @@ static int nouveau_pmops_runtime_resume(struct device *dev)
        pci_set_master(pdev);
 
        ret = nouveau_do_resume(drm_dev);
-       if (drm_dev->mode_config.num_crtc)
-               nouveau_display_resume(drm_dev);
        drm_kms_helper_poll_enable(drm_dev);
        /* do magic */
        nv_mask(device, 0x88488, (1 << 25), (1 << 25));