aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/agp/uninorth-agp.c52
-rw-r--r--drivers/video/aty/aty128fb.c34
-rw-r--r--drivers/video/aty/radeon_pm.c43
3 files changed, 73 insertions, 56 deletions
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 0f248239b4b..a673971f2a9 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -10,6 +10,7 @@
#include <asm/uninorth.h>
#include <asm/pci-bridge.h>
#include <asm/prom.h>
+#include <asm/pmac_feature.h>
#include "agp.h"
/*
@@ -26,6 +27,7 @@
static int uninorth_rev;
static int is_u3;
+
static int uninorth_fetch_size(void)
{
int i;
@@ -264,7 +266,8 @@ static void uninorth_agp_enable(struct agp_bridge_data *bridge, u32 mode)
&scratch);
} while ((scratch & PCI_AGP_COMMAND_AGP) == 0 && ++timeout < 1000);
if ((scratch & PCI_AGP_COMMAND_AGP) == 0)
- printk(KERN_ERR PFX "failed to write UniNorth AGP command reg\n");
+ printk(KERN_ERR PFX "failed to write UniNorth AGP"
+ " command register\n");
if (uninorth_rev >= 0x30) {
/* This is an AGP V3 */
@@ -278,13 +281,24 @@ static void uninorth_agp_enable(struct agp_bridge_data *bridge, u32 mode)
}
#ifdef CONFIG_PM
-static int agp_uninorth_suspend(struct pci_dev *pdev, pm_message_t state)
+/*
+ * These Power Management routines are _not_ called by the normal PCI PM layer,
+ * but directly by the video driver through function pointers in the device
+ * tree.
+ */
+static int agp_uninorth_suspend(struct pci_dev *pdev)
{
+ struct agp_bridge_data *bridge;
u32 cmd;
u8 agp;
struct pci_dev *device = NULL;
- if (state != PMSG_SUSPEND)
+ bridge = agp_find_bridge(pdev);
+ if (bridge == NULL)
+ return -ENODEV;
+
+ /* Only one suspend supported */
+ if (bridge->dev_private_data)
return 0;
/* turn off AGP on the video chip, if it was enabled */
@@ -315,6 +329,7 @@ static int agp_uninorth_suspend(struct pci_dev *pdev, pm_message_t state)
/* turn off AGP on the bridge */
agp = pci_find_capability(pdev, PCI_CAP_ID_AGP);
pci_read_config_dword(pdev, agp + PCI_AGP_COMMAND, &cmd);
+ bridge->dev_private_data = (void *)cmd;
if (cmd & PCI_AGP_COMMAND_AGP) {
printk("uninorth-agp: disabling AGP on bridge %s\n",
pci_name(pdev));
@@ -329,9 +344,23 @@ static int agp_uninorth_suspend(struct pci_dev *pdev, pm_message_t state)
static int agp_uninorth_resume(struct pci_dev *pdev)
{
+ struct agp_bridge_data *bridge;
+ u32 command;
+
+ bridge = agp_find_bridge(pdev);
+ if (bridge == NULL)
+ return -ENODEV;
+
+ command = (u32)bridge->dev_private_data;
+ bridge->dev_private_data = NULL;
+ if (!(command & PCI_AGP_COMMAND_AGP))
+ return 0;
+
+ uninorth_agp_enable(bridge, command);
+
return 0;
}
-#endif
+#endif /* CONFIG_PM */
static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
{
@@ -575,6 +604,12 @@ static int __devinit agp_uninorth_probe(struct pci_dev *pdev,
of_node_put(uninorth_node);
}
+#ifdef CONFIG_PM
+ /* Inform platform of our suspend/resume caps */
+ pmac_register_agp_pm(pdev, agp_uninorth_suspend, agp_uninorth_resume);
+#endif
+
+ /* Allocate & setup our driver */
bridge = agp_alloc_bridge();
if (!bridge)
return -ENOMEM;
@@ -599,6 +634,11 @@ static void __devexit agp_uninorth_remove(struct pci_dev *pdev)
{
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
+#ifdef CONFIG_PM
+ /* Inform platform of our suspend/resume caps */
+ pmac_register_agp_pm(pdev, NULL, NULL);
+#endif
+
agp_remove_bridge(bridge);
agp_put_bridge(bridge);
}
@@ -622,10 +662,6 @@ static struct pci_driver agp_uninorth_pci_driver = {
.id_table = agp_uninorth_pci_table,
.probe = agp_uninorth_probe,
.remove = agp_uninorth_remove,
-#ifdef CONFIG_PM
- .suspend = agp_uninorth_suspend,
- .resume = agp_uninorth_resume,
-#endif
};
static int __init agp_uninorth_init(void)
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 8a4ba3bb987..9789115980a 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -2331,7 +2331,6 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct aty128fb_par *par = info->par;
- u8 agp;
/* We don't do anything but D2, for now we return 0, but
* we may want to change that. How do we know if the BIOS
@@ -2369,26 +2368,13 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
par->asleep = 1;
par->lock_blank = 1;
- /* Disable AGP. The AGP host should have done it, but since ordering
- * isn't always properly guaranteed in this specific case, let's make
- * sure it's disabled on card side now. Ultimately, when merging fbdev
- * and dri into some common infrastructure, this will be handled
- * more nicely. The host bridge side will (or will not) be dealt with
- * by the bridge AGP driver, we don't attempt to touch it here.
+#ifdef CONFIG_PPC_PMAC
+ /* On powermac, we have hooks to properly suspend/resume AGP now,
+ * use them here. We'll ultimately need some generic support here,
+ * but the generic code isn't quite ready for that yet
*/
- agp = pci_find_capability(pdev, PCI_CAP_ID_AGP);
- if (agp) {
- u32 cmd;
-
- pci_read_config_dword(pdev, agp + PCI_AGP_COMMAND, &cmd);
- if (cmd & PCI_AGP_COMMAND_AGP) {
- printk(KERN_INFO "aty128fb: AGP was enabled, "
- "disabling ...\n");
- cmd &= ~PCI_AGP_COMMAND_AGP;
- pci_write_config_dword(pdev, agp + PCI_AGP_COMMAND,
- cmd);
- }
- }
+ pmac_suspend_agp_for_card(pdev);
+#endif /* CONFIG_PPC_PMAC */
/* We need a way to make sure the fbdev layer will _not_ touch the
* framebuffer before we put the chip to suspend state. On 2.4, I
@@ -2432,6 +2418,14 @@ static int aty128_do_resume(struct pci_dev *pdev)
par->lock_blank = 0;
aty128fb_blank(0, info);
+#ifdef CONFIG_PPC_PMAC
+ /* On powermac, we have hooks to properly suspend/resume AGP now,
+ * use them here. We'll ultimately need some generic support here,
+ * but the generic code isn't quite ready for that yet
+ */
+ pmac_resume_agp_for_card(pdev);
+#endif /* CONFIG_PPC_PMAC */
+
pdev->dev.power.power_state = PMSG_ON;
printk(KERN_DEBUG "aty128fb: resumed !\n");
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index 23c677e5093..98352af3932 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2520,13 +2520,10 @@ static int radeon_restore_pci_cfg(struct radeonfb_info *rinfo)
}
-static/*extern*/ int susdisking = 0;
-
int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct radeonfb_info *rinfo = info->par;
- u8 agp;
int i;
if (state == pdev->dev.power.power_state)
@@ -2542,11 +2539,6 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
*/
if (state != PM_SUSPEND_MEM)
goto done;
- if (susdisking) {
- printk("radeonfb (%s): suspending to disk but state = %d\n",
- pci_name(pdev), state);
- goto done;
- }
acquire_console_sem();
@@ -2567,27 +2559,13 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
rinfo->lock_blank = 1;
del_timer_sync(&rinfo->lvds_timer);
- /* Disable AGP. The AGP host should have done it, but since ordering
- * isn't always properly guaranteed in this specific case, let's make
- * sure it's disabled on card side now. Ultimately, when merging fbdev
- * and dri into some common infrastructure, this will be handled
- * more nicely. The host bridge side will (or will not) be dealt with
- * by the bridge AGP driver, we don't attempt to touch it here.
+#ifdef CONFIG_PPC_PMAC
+ /* On powermac, we have hooks to properly suspend/resume AGP now,
+ * use them here. We'll ultimately need some generic support here,
+ * but the generic code isn't quite ready for that yet
*/
- agp = pci_find_capability(pdev, PCI_CAP_ID_AGP);
- if (agp) {
- u32 cmd;
-
- pci_read_config_dword(pdev, agp + PCI_AGP_COMMAND, &cmd);
- if (cmd & PCI_AGP_COMMAND_AGP) {
- printk(KERN_INFO "radeonfb (%s): AGP was enabled, "
- "disabling ...\n",
- pci_name(pdev));
- cmd &= ~PCI_AGP_COMMAND_AGP;
- pci_write_config_dword(pdev, agp + PCI_AGP_COMMAND,
- cmd);
- }
- }
+ pmac_suspend_agp_for_card(pdev);
+#endif /* CONFIG_PPC_PMAC */
/* If we support wakeup from poweroff, we save all regs we can including cfg
* space
@@ -2699,6 +2677,15 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
rinfo->lock_blank = 0;
radeon_screen_blank(rinfo, FB_BLANK_UNBLANK, 1);
+#ifdef CONFIG_PPC_PMAC
+ /* On powermac, we have hooks to properly suspend/resume AGP now,
+ * use them here. We'll ultimately need some generic support here,
+ * but the generic code isn't quite ready for that yet
+ */
+ pmac_resume_agp_for_card(pdev);
+#endif /* CONFIG_PPC_PMAC */
+
+
/* Check status of dynclk */
if (rinfo->dynclk == 1)
radeon_pm_enable_dynamic_mode(rinfo);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 23:30:13 +0000