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path: root/drivers/video/via/viafbdev.c
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Diffstat (limited to 'drivers/video/via/viafbdev.c')
-rw-r--r--drivers/video/via/viafbdev.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 7cc057d..596235b 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -1669,6 +1669,52 @@ static int parse_mode(const char *str, u32 *xres, u32 *yres)
}
+#ifdef CONFIG_PM
+int viafb_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ if (state.event == PM_EVENT_SUSPEND) {
+ acquire_console_sem();
+
+ memcpy_fromio(viaparinfo->shared->saved_regs,
+ viaparinfo->shared->vdev->engine_mmio + 0x100,
+ 0xff * sizeof(u32));
+
+ fb_set_suspend(viafbinfo, 1);
+
+ viafb_sync(viafbinfo);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ release_console_sem();
+ }
+
+ return 0;
+}
+
+int viafb_resume(struct pci_dev *pdev)
+{
+ acquire_console_sem();
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ if (pci_enable_device(pdev))
+ goto fail;
+ pci_set_master(pdev);
+
+ memcpy_toio(viaparinfo->shared->vdev->engine_mmio + 0x100,
+ viaparinfo->shared->saved_regs,
+ 0x100 * sizeof(u32));
+
+ fb_set_suspend(viafbinfo, 0);
+
+fail:
+ release_console_sem();
+ return 0;
+}
+
+#endif
+
+
int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
{
u32 default_xres, default_yres;
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