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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-06-27 14:36:34 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-27 15:11:43 -0700
commit8c8709334cec803368a432a33e0f2e116d48fe07 (patch)
treef3298ae6d844e548c36df9fc3bfb5a3662d4e45d /drivers/video/chipsfb.c
parentfcd16cc084f2b98ab64d27721abdb941f3d9c4cb (diff)
downloadlinux-linaro-stable-8c8709334cec803368a432a33e0f2e116d48fe07.tar.gz
[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK
This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some powerbooks have, CONFIG_PM for power management related code, and just left out of any CONFIG_* option for some generally useful stuff that can be used on non-laptops as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/chipsfb.c')
-rw-r--r--drivers/video/chipsfb.c176
1 files changed, 92 insertions, 84 deletions
diff --git a/drivers/video/chipsfb.c b/drivers/video/chipsfb.c
index 95e72550d43f..e75a965ec760 100644
--- a/drivers/video/chipsfb.c
+++ b/drivers/video/chipsfb.c
@@ -28,22 +28,17 @@
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/console.h>
#include <asm/io.h>
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/backlight.h>
#endif
-#ifdef CONFIG_PMAC_PBOOK
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#endif
/*
* Since we access the display with inb/outb to fixed port numbers,
* we can only handle one 6555x chip. -- paulus
*/
-static struct fb_info chipsfb_info;
-
#define write_ind(num, val, ap, dp) do { \
outb((num), (ap)); outb((val), (dp)); \
} while (0)
@@ -74,14 +69,6 @@ static struct fb_info chipsfb_info;
inb(0x3da); read_ind(num, var, 0x3c0, 0x3c1); \
} while (0)
-#ifdef CONFIG_PMAC_PBOOK
-static unsigned char *save_framebuffer;
-int chips_sleep_notify(struct pmu_sleep_notifier *self, int when);
-static struct pmu_sleep_notifier chips_sleep_notifier = {
- chips_sleep_notify, SLEEP_LEVEL_VIDEO,
-};
-#endif
-
/*
* Exported functions
*/
@@ -356,6 +343,8 @@ static struct fb_var_screeninfo chipsfb_var __initdata = {
static void __init init_chips(struct fb_info *p, unsigned long addr)
{
+ memset(p->screen_base, 0, 0x100000);
+
p->fix = chipsfb_fix;
p->fix.smem_start = addr;
@@ -366,34 +355,41 @@ static void __init init_chips(struct fb_info *p, unsigned long addr)
fb_alloc_cmap(&p->cmap, 256, 0);
- if (register_framebuffer(p) < 0) {
- printk(KERN_ERR "C&T 65550 framebuffer failed to register\n");
- return;
- }
-
- printk(KERN_INFO "fb%d: Chips 65550 frame buffer (%dK RAM detected)\n",
- p->node, p->fix.smem_len / 1024);
-
chips_hw_init();
}
static int __devinit
chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
{
- struct fb_info *p = &chipsfb_info;
+ struct fb_info *p;
unsigned long addr, size;
unsigned short cmd;
+ int rc = -ENODEV;
+
+ if (pci_enable_device(dp) < 0) {
+ dev_err(&dp->dev, "Cannot enable PCI device\n");
+ goto err_out;
+ }
if ((dp->resource[0].flags & IORESOURCE_MEM) == 0)
- return -ENODEV;
+ goto err_disable;
addr = pci_resource_start(dp, 0);
size = pci_resource_len(dp, 0);
if (addr == 0)
- return -ENODEV;
- if (p->screen_base != 0)
- return -EBUSY;
- if (!request_mem_region(addr, size, "chipsfb"))
- return -EBUSY;
+ goto err_disable;
+
+ p = framebuffer_alloc(0, &dp->dev);
+ if (p == NULL) {
+ dev_err(&dp->dev, "Cannot allocate framebuffer structure\n");
+ rc = -ENOMEM;
+ goto err_disable;
+ }
+
+ if (pci_request_region(dp, 0, "chipsfb") != 0) {
+ dev_err(&dp->dev, "Cannot request framebuffer\n");
+ rc = -EBUSY;
+ goto err_release_fb;
+ }
#ifdef __BIG_ENDIAN
addr += 0x800000; // Use big-endian aperture
@@ -411,37 +407,89 @@ chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
set_backlight_enable(1);
#endif /* CONFIG_PMAC_BACKLIGHT */
+#ifdef CONFIG_PPC
p->screen_base = __ioremap(addr, 0x200000, _PAGE_NO_CACHE);
+#else
+ p->screen_base = ioremap(addr, 0x200000);
+#endif
if (p->screen_base == NULL) {
- release_mem_region(addr, size);
- return -ENOMEM;
+ dev_err(&dp->dev, "Cannot map framebuffer\n");
+ rc = -ENOMEM;
+ goto err_release_pci;
}
+
+ pci_set_drvdata(dp, p);
p->device = &dp->dev;
+
init_chips(p, addr);
-#ifdef CONFIG_PMAC_PBOOK
- pmu_register_sleep_notifier(&chips_sleep_notifier);
-#endif /* CONFIG_PMAC_PBOOK */
+ if (register_framebuffer(p) < 0) {
+ dev_err(&dp->dev,"C&T 65550 framebuffer failed to register\n");
+ goto err_unmap;
+ }
+
+ dev_info(&dp->dev,"fb%d: Chips 65550 frame buffer"
+ " (%dK RAM detected)\n",
+ p->node, p->fix.smem_len / 1024);
- pci_set_drvdata(dp, p);
return 0;
+
+ err_unmap:
+ iounmap(p->screen_base);
+ err_release_pci:
+ pci_release_region(dp, 0);
+ err_release_fb:
+ framebuffer_release(p);
+ err_disable:
+ err_out:
+ return rc;
}
static void __devexit chipsfb_remove(struct pci_dev *dp)
{
struct fb_info *p = pci_get_drvdata(dp);
- if (p != &chipsfb_info || p->screen_base == NULL)
+ if (p->screen_base == NULL)
return;
unregister_framebuffer(p);
iounmap(p->screen_base);
p->screen_base = NULL;
- release_mem_region(pci_resource_start(dp, 0), pci_resource_len(dp, 0));
+ pci_release_region(dp, 0);
+}
+
+#ifdef CONFIG_PM
+static int chipsfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct fb_info *p = pci_get_drvdata(pdev);
+
+ if (state == pdev->dev.power.power_state)
+ return 0;
+ if (state != PM_SUSPEND_MEM)
+ goto done;
+
+ acquire_console_sem();
+ chipsfb_blank(1, p);
+ fb_set_suspend(p, 1);
+ release_console_sem();
+ done:
+ pdev->dev.power.power_state = state;
+ return 0;
+}
+
+static int chipsfb_pci_resume(struct pci_dev *pdev)
+{
+ struct fb_info *p = pci_get_drvdata(pdev);
-#ifdef CONFIG_PMAC_PBOOK
- pmu_unregister_sleep_notifier(&chips_sleep_notifier);
-#endif /* CONFIG_PMAC_PBOOK */
+ acquire_console_sem();
+ fb_set_suspend(p, 0);
+ chipsfb_blank(0, p);
+ release_console_sem();
+
+ pdev->dev.power.power_state = PMSG_ON;
+ return 0;
}
+#endif /* CONFIG_PM */
+
static struct pci_device_id chipsfb_pci_tbl[] = {
{ PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_65550, PCI_ANY_ID, PCI_ANY_ID },
@@ -455,6 +503,10 @@ static struct pci_driver chipsfb_driver = {
.id_table = chipsfb_pci_tbl,
.probe = chipsfb_pci_init,
.remove = __devexit_p(chipsfb_remove),
+#ifdef CONFIG_PM
+ .suspend = chipsfb_pci_suspend,
+ .resume = chipsfb_pci_resume,
+#endif
};
int __init chips_init(void)
@@ -472,48 +524,4 @@ static void __exit chipsfb_exit(void)
pci_unregister_driver(&chipsfb_driver);
}
-#ifdef CONFIG_PMAC_PBOOK
-/*
- * Save the contents of the frame buffer when we go to sleep,
- * and restore it when we wake up again.
- */
-int
-chips_sleep_notify(struct pmu_sleep_notifier *self, int when)
-{
- struct fb_info *p = &chipsfb_info;
- int nb = p->var.yres * p->fix.line_length;
-
- if (p->screen_base == NULL)
- return PBOOK_SLEEP_OK;
-
- switch (when) {
- case PBOOK_SLEEP_REQUEST:
- save_framebuffer = vmalloc(nb);
- if (save_framebuffer == NULL)
- return PBOOK_SLEEP_REFUSE;
- break;
- case PBOOK_SLEEP_REJECT:
- if (save_framebuffer) {
- vfree(save_framebuffer);
- save_framebuffer = NULL;
- }
- break;
- case PBOOK_SLEEP_NOW:
- chipsfb_blank(1, p);
- if (save_framebuffer)
- memcpy(save_framebuffer, p->screen_base, nb);
- break;
- case PBOOK_WAKE:
- if (save_framebuffer) {
- memcpy(p->screen_base, save_framebuffer, nb);
- vfree(save_framebuffer);
- save_framebuffer = NULL;
- }
- chipsfb_blank(0, p);
- break;
- }
- return PBOOK_SLEEP_OK;
-}
-#endif /* CONFIG_PMAC_PBOOK */
-
MODULE_LICENSE("GPL");