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Commit 8b8c622a authored by Karthik Parsha's avatar Karthik Parsha
Browse files

msm: spm_devices: Initialize q2s and set spm_legacy_mode bit at probe 



At system boot, cpus and or clusters can remain in reset. CCI SPM will
not be triggered unless SPM_LEGACY_MODE bit is set for the cluster in
reset. Initialize q2s registers and set the SPM_LEGACY_MODE bit at probe.

Also, unset QChannel ignore bit during power collapse due to a hardware
issue.

Change-Id: I07031e0ee276265b66b9fe4e0bb5bab36415b469
Signed-off-by: default avatarKarthik Parsha <kparsha@codeaurora.org>
parent 995d60f4

drivers/soc/qcom/spm_devices.c

+8 −1
Original line number Original line Diff line number Diff line
@@ -162,7 +162,7 @@ static void msm_spm_config_q2s(struct msm_spm_device *dev, unsigned int mode) 
		break;

		break;

	case MSM_SPM_MODE_GDHS:

	case MSM_SPM_MODE_GDHS:

	case MSM_SPM_MODE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

		qchannel_ignore = 1;

		qchannel_ignore = 0;

		spm_legacy_mode = 1;

		spm_legacy_mode = 1;

		break;

		break;

	default:

	default:
@@ -589,6 +589,13 @@ static int msm_spm_dev_probe(struct platform_device *pdev) 
			goto fail;

			goto fail;

		}

		}

	}

	}

	/*

	 * At system boot, cpus and or clusters can remain in reset. CCI SPM

	 * will not be triggered unless SPM_LEGACY_MODE bit is set for the

	 * cluster in reset. Initialize q2s registers and set the

	 * SPM_LEGACY_MODE bit.

	 */

	msm_spm_config_q2s(dev, MSM_SPM_MODE_POWER_COLLAPSE);





	for (i = 0; i < ARRAY_SIZE(spm_of_data); i++) {

	for (i = 0; i < ARRAY_SIZE(spm_of_data); i++) {

		ret = of_property_read_u32(node, spm_of_data[i].key, &val);

		ret = of_property_read_u32(node, spm_of_data[i].key, &val);