Adds a conversion function that extracts the device type from the
PCI id-table flags. Allows for storing additional information in the
other flag bits.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/mgag200/mgag200_drv.h | 7 +++++++
drivers/gpu/drm/mgag200/mgag200_main.c | 2 +-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 0ea9a525e57d..976404634092 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -150,6 +150,8 @@ enum mga_type {
G200_EW3,
};
+#define MGAG200_TYPE_MASK (0x000000ff)
+
#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
struct mga_device {
@@ -181,6 +183,11 @@ struct mga_device {
u32 unique_rev_id;
};
+static inline enum mga_type
+mgag200_type_from_driver_data(kernel_ulong_t driver_data)
+{
+ return (enum mga_type)(driver_data & MGAG200_TYPE_MASK);
+}
/* mgag200_mode.c */
int mgag200_modeset_init(struct mga_device *mdev);
void mgag200_modeset_fini(struct mga_device *mdev);
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 5f74aabcd3df..517c5693ad69 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -94,7 +94,7 @@ static int mgag200_device_init(struct drm_device *dev,
struct mga_device *mdev = dev->dev_private;
int ret, option;
- mdev->type = flags;
+ mdev->type = mgag200_type_from_driver_data(flags);
/* Hardcode the number of CRTCs to 1 */
mdev->num_crtc = 1;
--
2.23.0
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