Merge "msm: ipa3: WA to handle of mhi prime channel start failure" (573c14fb) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/platform/msm/ipa/ipa_v3/ipa_mpm.c

+12 −2

Original line number	Diff line number	Diff line
		@@ -1832,7 +1832,7 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,

		if (ipa_mpm_ctx->md[probe_id].init_complete) {
		IPA_MPM_ERR("Probe initialization already done, returning\n");
		return -EPERM;
		return 0;
		}

		IPA_MPM_DBG("Received probe for id=%d\n", probe_id);
		@@ -1989,7 +1989,17 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
		ret = mhi_prepare_for_transfer(ipa_mpm_ctx->md[probe_id].mhi_dev);
		if (ret) {
		IPA_MPM_ERR("mhi_prepare_for_transfer failed %d\n", ret);
		goto fail_smmu;
		WARN_ON(1);
		/*
		* WA to handle prepare_for_tx failures.
		* Though prepare for transfer fails, indicate success
		* to MHI driver. remove_cb will be called eventually when
		* Device side comes from where pending cleanup happens.
		*/
		atomic_inc(&ipa_mpm_ctx->probe_cnt);
		ipa_mpm_ctx->md[probe_id].init_complete = true;
		IPA_MPM_FUNC_EXIT();
		return 0;
		}

		/*