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authorDmitry Baryshkov2024-07-04 14:12:46 +0300
committerBjorn Andersson2024-07-06 12:59:50 -0500
commit55751d3e9e96d5d64dc6ebb5bbdf70f45098f279 (patch)
tree517871013443e8a284e7ac02b79570a7aec124b1
parentb066a2c430f3f8d0aedba44991e0a69e21b512d3 (diff)
firmware: qcom: tzmem: blacklist more platforms for SHM Bridge
The SHM bridge makes the Qualcomm RB3 and SM8150-HDK reset while probing the RMTFS (in qcom_scm_assign_mem()). Blacklist the SHM Bridge on corresponding platforms using SoC-level compat string. If later it's found that the bad behaviour is limited just to the particular boards rather than SoC, the compat strings can be adjusted. Reported-by: Neil Armstrong <neil.armstrong@linaro.org> Fixes: f86c61498a57 ("firmware: qcom: tzmem: enable SHM Bridge support") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on Qualcomm RB3 Link: https://lore.kernel.org/r/20240704-shmbridge-blacklist-v1-1-14b027b3b2dc@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
-rw-r--r--drivers/firmware/qcom/qcom_tzmem.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firmware/qcom/qcom_tzmem.c b/drivers/firmware/qcom/qcom_tzmem.c
index ab156ab3a6b4..17948cfc82e7 100644
--- a/drivers/firmware/qcom/qcom_tzmem.c
+++ b/drivers/firmware/qcom/qcom_tzmem.c
@@ -78,6 +78,8 @@ static bool qcom_tzmem_using_shm_bridge;
/* List of machines that are known to not support SHM bridge correctly. */
static const char *const qcom_tzmem_blacklist[] = {
"qcom,sc8180x",
+ "qcom,sdm845", /* reset in rmtfs memory assignment */
+ "qcom,sm8150", /* reset in rmtfs memory assignment */
NULL
};