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Commit 682358e5 authored by Sujeev Dias's avatar Sujeev Dias Committed by Gerrit - the friendly Code Review server
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mhi: controller: qcom: make bus scale bw optional 



Bus scale voting is not required on all targets. Make
bus scale voting optional.

CRs-Fixed: 2347210
Change-Id: I90b6de34b543c2b74e1718b19df1ec26274f43ce
Signed-off-by: default avatarSujeev Dias <sdias@codeaurora.org>
parent a0eb66fb

drivers/bus/mhi/controllers/mhi_arch_qcom.c

+14 −9
Original line number Original line Diff line number Diff line
@@ -70,8 +70,13 @@ static int mhi_arch_set_bus_request(struct mhi_controller *mhi_cntrl, int index) 




	MHI_LOG("Setting bus request to index %d\n", index);

	MHI_LOG("Setting bus request to index %d\n", index);





	return msm_bus_scale_client_update_request(arch_info->bus_client,

	if (arch_info->bus_client)

		return msm_bus_scale_client_update_request(

							arch_info->bus_client,

							index);

							index);



	/* default return success */

	return 0;

}

}





static void mhi_arch_pci_link_state_cb(struct msm_pcie_notify *notify)

static void mhi_arch_pci_link_state_cb(struct msm_pcie_notify *notify)
@@ -278,16 +283,16 @@ int mhi_arch_pcie_init(struct mhi_controller *mhi_cntrl) 
							    node, 0);

							    node, 0);

		mhi_cntrl->log_lvl = mhi_ipc_log_lvl;

		mhi_cntrl->log_lvl = mhi_ipc_log_lvl;





		/* register bus scale */

		/* register for bus scale if defined */

		arch_info->msm_bus_pdata = msm_bus_cl_get_pdata_from_dev(

		arch_info->msm_bus_pdata = msm_bus_cl_get_pdata_from_dev(

							&mhi_dev->pci_dev->dev);

							&mhi_dev->pci_dev->dev);

		if (!arch_info->msm_bus_pdata)

		if (arch_info->msm_bus_pdata) {

			return -EINVAL;

			arch_info->bus_client =



				msm_bus_scale_register_client(

		arch_info->bus_client = msm_bus_scale_register_client(

						arch_info->msm_bus_pdata);

						arch_info->msm_bus_pdata);

			if (!arch_info->bus_client)

			if (!arch_info->bus_client)

				return -EINVAL;

				return -EINVAL;

		}





		/* register with pcie rc for WAKE# events */

		/* register with pcie rc for WAKE# events */

		reg_event = &arch_info->pcie_reg_event;

		reg_event = &arch_info->pcie_reg_event;