[PATCH 7/7] drm/msm/gpu: Add a comment in a6xx_gmu_init()

[Rob Clark <robdclark@gmail.com>]

From: Rob Clark <robdclark@chromium.org>

If you don't realize is_a650_family() also encompasses a660 family,
you'd think that the debug buffer is double allocated.  Add a comment
to make this more clear.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index e1774ea342b1..3e325e2a2b1b 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1531,6 +1531,7 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
 	if (ret)
 		goto err_memory;
 
+	/* Note that a650 family also includes a660 family: */
 	if (adreno_is_a650_family(adreno_gpu)) {
 		ret = a6xx_gmu_memory_alloc(gmu, &gmu->icache,
 			SZ_16M - SZ_16K, 0x04000, "icache");
@@ -1547,6 +1548,8 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
 		if (ret)
 			goto err_memory;
 	} else {
+		BUG_ON(adreno_is_a660_family(adreno_gpu));
+
 		/* HFI v1, has sptprac */
 		gmu->legacy = true;
 
-- 
2.33.1