diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_gpio.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_gpio.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index b2fab2bf3d61..302f7ebe5b6f 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -26,6 +26,8 @@ #include "nouveau_drv.h" #include "nouveau_hw.h" +static void nv50_gpio_isr(struct drm_device *dev); + static int nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift) { @@ -107,5 +109,39 @@ nv50_gpio_init(struct drm_device *dev) nv_wr32(dev, 0xe074, 0xffffffff); } + nouveau_irq_register(dev, 21, nv50_gpio_isr); return 0; } + +void +nv50_gpio_fini(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + nv_wr32(dev, 0xe050, 0x00000000); + if (dev_priv->chipset >= 0x90) + nv_wr32(dev, 0xe070, 0x00000000); + nouveau_irq_unregister(dev, 21); +} + +static void +nv50_gpio_isr(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t hpd0_bits, hpd1_bits = 0; + + hpd0_bits = nv_rd32(dev, 0xe054); + nv_wr32(dev, 0xe054, hpd0_bits); + + if (dev_priv->chipset >= 0x90) { + hpd1_bits = nv_rd32(dev, 0xe074); + nv_wr32(dev, 0xe074, hpd1_bits); + } + + spin_lock(&dev_priv->hpd_state.lock); + dev_priv->hpd_state.hpd0_bits |= hpd0_bits; + dev_priv->hpd_state.hpd1_bits |= hpd1_bits; + spin_unlock(&dev_priv->hpd_state.lock); + + queue_work(dev_priv->wq, &dev_priv->hpd_work); +} |