drm/etnaviv: fix up model and revision for GC2000+

GC2000+ on the i.MX6QP is just a re-branded GC3000, lets call it by
its real name to avoid confusion in other parts of the driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 39b5be3916d5..40ceb22d0442 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -327,6 +327,18 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
                                 gpu->identity.revision = 0x1051;
                         }
                 }
+
+                /*
+                 * NXP likes to call the GPU on the i.MX6QP GC2000+, but in
+                 * reality it's just a re-branded GC3000. We can identify this
+                 * core by the upper half of the revision register being all 1.
+                 * Fix model/rev here, so all other places can refer to this
+                 * core by its real identity.
+                 */
+                if (etnaviv_is_model_rev(gpu, GC2000, 0xffff5450)) {
+                        gpu->identity.model = chipModel_GC3000;
+                        gpu->identity.revision &= 0xffff;
+                }
         }
 
         dev_info(gpu->dev, "model: GC%x, revision: %x\n",