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drm/nouveau: add dmi quirk for gpio reset 

This fixes the gpio reset problem so the Retina MBP works, but avoids
breaking the Dell systems. Ben will work on a better solution for 3.7.

Tested by me on retina MBP.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-09-21 09:19:50 -04:00
parent 8e910d08a2
commit 6c06d608ec
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/nouveau/nv50_gpio.c
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@ -22,6 +22,7 @@
* Authors: Ben Skeggs
*/
#include <linux/dmi.h>
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_hw.h"
@ -110,11 +111,26 @@ nv50_gpio_isr(struct drm_device *dev)
nv_wr32(dev, 0xe074, intr1);
}
static struct dmi_system_id gpio_reset_ids[] = {
{
.ident = "Apple Macbook 10,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro10,1"),
}
},
{ }
};
int
nv50_gpio_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
/* initialise gpios and routing to vbios defaults */
if (dmi_check_system(gpio_reset_ids))
nouveau_gpio_reset(dev);
/* disable, and ack any pending gpio interrupts */
nv_wr32(dev, 0xe050, 0x00000000);
nv_wr32(dev, 0xe054, 0xffffffff);