summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/gpu/drm/drm_fops.c2
-rw-r--r--drivers/gpu/drm/i810/i810_drv.c23
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c31
-rw-r--r--drivers/gpu/drm/mga/mga_drv.c29
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.c31
-rw-r--r--drivers/gpu/drm/r128/r128_drv.c30
-rw-r--r--drivers/gpu/drm/radeon/radeon_drv.c60
-rw-r--r--drivers/gpu/drm/savage/savage_drv.c23
-rw-r--r--drivers/gpu/drm/sis/sis_drv.c23
-rw-r--r--drivers/gpu/drm/tdfx/tdfx_drv.c23
-rw-r--r--drivers/gpu/drm/via/via_drv.c23
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c30
-rw-r--r--drivers/staging/gma500/psb_drv.c23
-rw-r--r--include/drm/drmP.h2
14 files changed, 183 insertions, 170 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 4911e1d1dcf2..c00cf154cc0b 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -182,7 +182,7 @@ int drm_stub_open(struct inode *inode, struct file *filp)
goto out;
old_fops = filp->f_op;
- filp->f_op = fops_get(&dev->driver->fops);
+ filp->f_op = fops_get(dev->driver->fops);
if (filp->f_op == NULL) {
filp->f_op = old_fops;
goto out;
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index d4266bdf6fb4..ec12f7dc717a 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -43,6 +43,17 @@ static struct pci_device_id pciidlist[] = {
i810_PCI_IDS
};
+static const struct file_operations i810_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
@@ -55,17 +66,7 @@ static struct drm_driver driver = {
.reclaim_buffers_locked = i810_driver_reclaim_buffers_locked,
.dma_quiescent = i810_driver_dma_quiescent,
.ioctls = i810_ioctls,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .llseek = noop_llseek,
- },
-
+ .fops = &i810_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index cc531bb59c26..9f592703c369 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -788,6 +788,21 @@ static struct vm_operations_struct i915_gem_vm_ops = {
.close = drm_gem_vm_close,
};
+static const struct file_operations i915_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_gem_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = i915_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
/* don't use mtrr's here, the Xserver or user space app should
* deal with them for intel hardware.
@@ -821,21 +836,7 @@ static struct drm_driver driver = {
.dumb_map_offset = i915_gem_mmap_gtt,
.dumb_destroy = i915_gem_dumb_destroy,
.ioctls = i915_ioctls,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_gem_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .read = drm_read,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = i915_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
+ .fops = &i915_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
index 33daa29eea66..f9a925d58819 100644
--- a/drivers/gpu/drm/mga/mga_drv.c
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -44,6 +44,20 @@ static struct pci_device_id pciidlist[] = {
mga_PCI_IDS
};
+static const struct file_operations mga_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = mga_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
@@ -64,20 +78,7 @@ static struct drm_driver driver = {
.reclaim_buffers = drm_core_reclaim_buffers,
.ioctls = mga_ioctls,
.dma_ioctl = mga_dma_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = mga_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
+ .fops = &mga_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 9f7bb1295262..d661bc5e3945 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -388,6 +388,21 @@ nouveau_pci_resume(struct pci_dev *pdev)
return 0;
}
+static const struct file_operations nouveau_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = nouveau_ttm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+#if defined(CONFIG_COMPAT)
+ .compat_ioctl = nouveau_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG |
@@ -413,21 +428,7 @@ static struct drm_driver driver = {
.disable_vblank = nouveau_vblank_disable,
.reclaim_buffers = drm_core_reclaim_buffers,
.ioctls = nouveau_ioctls,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = nouveau_ttm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .read = drm_read,
-#if defined(CONFIG_COMPAT)
- .compat_ioctl = nouveau_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
+ .fops = &nouveau_driver_fops,
.gem_init_object = nouveau_gem_object_new,
.gem_free_object = nouveau_gem_object_del,
.gem_open_object = nouveau_gem_object_open,
diff --git a/drivers/gpu/drm/r128/r128_drv.c b/drivers/gpu/drm/r128/r128_drv.c
index 4c8796ba6dd8..6a5f4395838f 100644
--- a/drivers/gpu/drm/r128/r128_drv.c
+++ b/drivers/gpu/drm/r128/r128_drv.c
@@ -42,6 +42,20 @@ static struct pci_device_id pciidlist[] = {
r128_PCI_IDS
};
+static const struct file_operations r128_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = r128_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -60,21 +74,7 @@ static struct drm_driver driver = {
.reclaim_buffers = drm_core_reclaim_buffers,
.ioctls = r128_ioctls,
.dma_ioctl = r128_cce_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = r128_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
-
+ .fops = &r128_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index a0b35e909489..e42c34b98c7b 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -205,6 +205,21 @@ static struct pci_device_id pciidlist[] = {
MODULE_DEVICE_TABLE(pci, pciidlist);
#endif
+static const struct file_operations radeon_driver_old_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = radeon_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver_old = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -231,21 +246,7 @@ static struct drm_driver driver_old = {
.reclaim_buffers = drm_core_reclaim_buffers,
.ioctls = radeon_ioctls,
.dma_ioctl = radeon_cp_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .read = drm_read,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = radeon_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
+ .fops = &radeon_driver_old_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
@@ -303,6 +304,20 @@ radeon_pci_resume(struct pci_dev *pdev)
return radeon_resume_kms(dev);
}
+static const struct file_operations radeon_driver_kms_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = radeon_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = radeon_kms_compat_ioctl,
+#endif
+};
+
static struct drm_driver kms_driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -338,20 +353,7 @@ static struct drm_driver kms_driver = {
.dumb_create = radeon_mode_dumb_create,
.dumb_map_offset = radeon_mode_dumb_mmap,
.dumb_destroy = radeon_mode_dumb_destroy,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = radeon_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .read = drm_read,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = radeon_kms_compat_ioctl,
-#endif
- },
-
+ .fops = &radeon_driver_kms_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index 5468d1cd3296..89afe0b83643 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -35,6 +35,17 @@ static struct pci_device_id pciidlist[] = {
savage_PCI_IDS
};
+static const struct file_operations savage_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_PCI_DMA,
@@ -46,17 +57,7 @@ static struct drm_driver driver = {
.reclaim_buffers = savage_reclaim_buffers,
.ioctls = savage_ioctls,
.dma_ioctl = savage_bci_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .llseek = noop_llseek,
- },
-
+ .fops = &savage_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index a9c5716bea4e..bda96a8cd939 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -65,6 +65,17 @@ static int sis_driver_unload(struct drm_device *dev)
return 0;
}
+static const struct file_operations sis_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
.load = sis_driver_load,
@@ -74,17 +85,7 @@ static struct drm_driver driver = {
.reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,
.lastclose = sis_lastclose,
.ioctls = sis_ioctls,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .llseek = noop_llseek,
- },
-
+ .fops = &sis_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c
index cda29911e332..1613c78544c0 100644
--- a/drivers/gpu/drm/tdfx/tdfx_drv.c
+++ b/drivers/gpu/drm/tdfx/tdfx_drv.c
@@ -41,20 +41,21 @@ static struct pci_device_id pciidlist[] = {
tdfx_PCI_IDS
};
+static const struct file_operations tdfx_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features = DRIVER_USE_MTRR,
.reclaim_buffers = drm_core_reclaim_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .llseek = noop_llseek,
- },
-
+ .fops = &tdfx_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index a83e86d3956c..fb43fd368ce1 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -34,6 +34,17 @@ static struct pci_device_id pciidlist[] = {
viadrv_PCI_IDS
};
+static const struct file_operations via_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
@@ -54,17 +65,7 @@ static struct drm_driver driver = {
.reclaim_buffers_idlelocked = via_reclaim_buffers_locked,
.lastclose = via_lastclose,
.ioctls = via_ioctls,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .llseek = noop_llseek,
- },
-
+ .fops = &via_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index dff8fc767152..f390f5f9cb68 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1064,6 +1064,21 @@ static const struct dev_pm_ops vmw_pm_ops = {
.resume = vmw_pm_resume,
};
+static const struct file_operations vmwgfx_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = vmw_unlocked_ioctl,
+ .mmap = vmw_mmap,
+ .poll = vmw_fops_poll,
+ .read = vmw_fops_read,
+ .fasync = drm_fasync,
+#if defined(CONFIG_COMPAT)
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
DRIVER_MODESET,
@@ -1088,20 +1103,7 @@ static struct drm_driver driver = {
.master_drop = vmw_master_drop,
.open = vmw_driver_open,
.postclose = vmw_postclose,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = vmw_unlocked_ioctl,
- .mmap = vmw_mmap,
- .poll = vmw_fops_poll,
- .read = vmw_fops_read,
- .fasync = drm_fasync,
-#if defined(CONFIG_COMPAT)
- .compat_ioctl = drm_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
+ .fops = &vmwgfx_driver_fops,
.name = VMWGFX_DRIVER_NAME,
.desc = VMWGFX_DRIVER_DESC,
.date = VMWGFX_DRIVER_DATE,
diff --git a/drivers/staging/gma500/psb_drv.c b/drivers/staging/gma500/psb_drv.c
index 986a04d16ba8..95816808f867 100644
--- a/drivers/staging/gma500/psb_drv.c
+++ b/drivers/staging/gma500/psb_drv.c
@@ -1151,6 +1151,17 @@ static struct vm_operations_struct psb_gem_vm_ops = {
.close = drm_gem_vm_close,
};
+static const struct file_operations gma500_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = psb_unlocked_ioctl,
+ .mmap = drm_gem_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+};
+
static struct drm_driver driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
DRIVER_IRQ_VBL | DRIVER_MODESET | DRIVER_GEM ,
@@ -1179,17 +1190,7 @@ static struct drm_driver driver = {
.dumb_create = psb_gem_dumb_create,
.dumb_map_offset = psb_gem_dumb_map_gtt,
.dumb_destroy = psb_gem_dumb_destroy,
-
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = psb_unlocked_ioctl,
- .mmap = drm_gem_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
- .read = drm_read,
- },
+ .fops = &gma500_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = PSB_DRM_DRIVER_DATE,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index cf399495d38f..1f630a5d75b4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -918,7 +918,7 @@ struct drm_driver {
int dev_priv_size;
struct drm_ioctl_desc *ioctls;
int num_ioctls;
- struct file_operations fops;
+ const struct file_operations *fops;
union {
struct pci_driver *pci;
struct platform_device *platform_device;