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Commit ab710fdb authored by Skylar Chang's avatar Skylar Chang
Browse files

msm: ipa: disable prefetch for MHI 



MHI might be configured to MBIM aggregation.
For this to work TX prefetch needs to be disabled.

Change-Id: I52510f3a7fbe90d5a472703363136e6e909d301c
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent 599728cb

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

+5 −1
Original line number Diff line number Diff line
@@ -4407,12 +4407,16 @@ static int ipa3_post_init(const struct ipa3_plat_drv_res *resource_p, 


	/*

	 * IPAv3.5 and above requires to disable prefetch for USB in order

	 * to allow MBIM to work, currently MBIM is not needed in MHI mode.

	 * to allow MBIM to work.

	 */

	if ((ipa3_ctx->ipa_hw_type >= IPA_HW_v3_5) &&

		(!ipa3_ctx->ipa_config_is_mhi))

		ipa3_disable_prefetch(IPA_CLIENT_USB_CONS);



	if ((ipa3_ctx->ipa_hw_type >= IPA_HW_v3_5) &&

		(ipa3_ctx->ipa_config_is_mhi))

		ipa3_disable_prefetch(IPA_CLIENT_MHI_CONS);



	if (ipa3_ctx->transport_prototype == IPA_TRANSPORT_TYPE_GSI) {

		memset(&gsi_props, 0, sizeof(gsi_props));

		gsi_props.ver = ipa3_get_gsi_ver(resource_p->ipa_hw_type);