[PATCH v3 10/15] drm/msm/a6xx: Fix A680 highest bank bit value

From: Konrad Dybcio
Date: Thu Feb 23 2023 - 07:07:41 EST


According to the vendor sources, it's equal to 16, which makes hbb_lo
equal to 3.

Fixes: 840d10b64dad ("drm: msm: Add 680 gpu to the adreno gpu list")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index b5017c56fa1b..2c4afecdd213 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -885,12 +885,18 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
hbb_lo = 2;
}

- if (adreno_is_a640_family(adreno_gpu)) {
+ if (adreno_is_a640(adreno_gpu)) {
amsbc = 1;
/* HBB = 15 */
hbb_lo = 2;
}

+ if (adreno_is_a680(adreno_gpu)) {
+ amsbc = 1;
+ /* HBB = 16 */
+ hbb_lo = 3;
+ }
+
if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu)) {
amsbc = 1;
/* TODO: get ddr type from bootloader and use 2 for LPDDR4 */

--
2.39.2