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Commit 29f2b0c1 authored by Archana Sathyakumar's avatar Archana Sathyakumar Committed by Maulik Shah
Browse files

drivers: msm-pm: Add SPC flag for standalone power collapse 



Use mode flag to distinguish between standalone power collapse
and power collapse sequence.

Change-Id: Idfa3586d0c06e8c6d9e922747438dfb109a8213a
Signed-off-by: default avatarMaulik Shah <mkshah@codeaurora.org>
Signed-off-by: default avatarArchana Sathyakumar <asathyak@codeaurora.org>
parent a8c6b93c

drivers/cpuidle/lpm-levels-of.c

+4 −1
Original line number Diff line number Diff line
@@ -384,6 +384,7 @@ static int parse_lpm_mode(const char *str) 
	int i;

	struct lpm_lookup_table mode_lookup[] = {

		{MSM_SPM_MODE_POWER_COLLAPSE, "pc"},

		{MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE, "spc"},

		{MSM_SPM_MODE_FASTPC, "fpc"},

		{MSM_SPM_MODE_GDHS, "gdhs"},

		{MSM_SPM_MODE_RETENTION, "retention"},
@@ -472,7 +473,9 @@ static int parse_cluster_level(struct device_node *node, 
			if (level->mode[i] < 0)

				goto failed;



			if (level->mode[i] == MSM_SPM_MODE_POWER_COLLAPSE)

			if (level->mode[i] == MSM_SPM_MODE_POWER_COLLAPSE

				|| level->mode[i] ==

				MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE)

				level->is_reset |= true;

		}

	}

drivers/cpuidle/lpm-levels.c

+2 −0
Original line number Diff line number Diff line
@@ -225,6 +225,7 @@ int set_l2_mode(struct low_power_ops *ops, int mode, bool notify_rpm) 
		coresight_cti_ctx_restore();



	switch (mode) {

	case MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

	case MSM_SPM_MODE_FASTPC:

		cpu_ops->tz_flag = MSM_SCM_L2_OFF;
@@ -259,6 +260,7 @@ int set_l3_mode(struct low_power_ops *ops, int mode, bool notify_rpm) 
			smp_processor_id())->lpm_dev;



	switch (mode) {

	case MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

	case MSM_SPM_MODE_FASTPC:

		cpu_ops->tz_flag |= MSM_SCM_L3_PC_OFF;

drivers/power/qcom/msm-pm.c

+7 −5
Original line number Diff line number Diff line
@@ -260,7 +260,7 @@ int msm_pm_collapse(unsigned long unused) 
EXPORT_SYMBOL(msm_pm_collapse);



static bool __ref msm_pm_spm_power_collapse(

	unsigned int cpu, bool from_idle, bool notify_rpm)

	unsigned int cpu, int mode, bool from_idle, bool notify_rpm)

{

	void *entry;

	bool collapsed = 0;
@@ -271,8 +271,7 @@ static bool __ref msm_pm_spm_power_collapse( 
		pr_info("CPU%u: %s: notify_rpm %d\n",

			cpu, __func__, (int) notify_rpm);



	ret = msm_spm_set_low_power_mode(

			MSM_SPM_MODE_POWER_COLLAPSE, notify_rpm);

	ret = msm_spm_set_low_power_mode(mode, notify_rpm);

	WARN_ON(ret);



	entry = save_cpu_regs ?  cpu_resume : msm_secondary_startup;
@@ -310,7 +309,9 @@ static bool msm_pm_power_collapse_standalone( 
	unsigned int cpu = smp_processor_id();

	bool collapsed;



	collapsed = msm_pm_spm_power_collapse(cpu, from_idle, false);

	collapsed = msm_pm_spm_power_collapse(cpu,

			MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE,

			from_idle, false);



	return collapsed;

}
@@ -366,7 +367,8 @@ static bool msm_pm_power_collapse(bool from_idle) 
	if (cpu_online(cpu) && !msm_no_ramp_down_pc)

		saved_acpuclk_rate = ramp_down_last_cpu(cpu);



	collapsed = msm_pm_spm_power_collapse(cpu, from_idle, true);

	collapsed = msm_pm_spm_power_collapse(cpu, MSM_SPM_MODE_POWER_COLLAPSE,

			from_idle, true);



	if (cpu_online(cpu) && !msm_no_ramp_down_pc)

		ramp_up_first_cpu(cpu, saved_acpuclk_rate);

drivers/soc/qcom/spm_devices.c

+5 −1
Original line number Diff line number Diff line
@@ -175,6 +175,7 @@ static void msm_spm_config_q2s(struct msm_spm_device *dev, unsigned int mode) 
		spm_legacy_mode = 0;

		break;

	case MSM_SPM_MODE_GDHS:

	case MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

		qchannel_ignore = dev->qchannel_ignore;

		spm_legacy_mode = 1;
@@ -198,6 +199,7 @@ static void msm_spm_config_hw_flush(struct msm_spm_device *dev, 


	switch (mode) {

	case MSM_SPM_MODE_FASTPC:

	case MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

		val = BIT(0);

		break;
@@ -219,6 +221,7 @@ static void msm_spm_config_slpreq(struct msm_spm_device *dev, 
	switch (mode) {

	case MSM_SPM_MODE_FASTPC:

	case MSM_SPM_MODE_GDHS:

	case MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE:

	case MSM_SPM_MODE_POWER_COLLAPSE:

		val = BIT(4);

		break;
@@ -729,7 +732,8 @@ static int msm_spm_dev_probe(struct platform_device *pdev) 
		{"qcom,saw2-spm-cmd-wfi", MSM_SPM_MODE_CLOCK_GATING},

		{"qcom,saw2-spm-cmd-ret", MSM_SPM_MODE_RETENTION},

		{"qcom,saw2-spm-cmd-gdhs", MSM_SPM_MODE_GDHS},

		{"qcom,saw2-spm-cmd-spc", MSM_SPM_MODE_POWER_COLLAPSE},

		{"qcom,saw2-spm-cmd-spc",

				MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE},

		{"qcom,saw2-spm-cmd-pc", MSM_SPM_MODE_POWER_COLLAPSE},

		{"qcom,saw2-spm-cmd-fpc", MSM_SPM_MODE_FASTPC},

	};

include/soc/qcom/spm.h

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ enum { 
	MSM_SPM_MODE_RETENTION,

	MSM_SPM_MODE_GDHS,

	MSM_SPM_MODE_POWER_COLLAPSE,

	MSM_SPM_MODE_STANDALONE_POWER_COLLAPSE,

	MSM_SPM_MODE_FASTPC,

	MSM_SPM_MODE_NR

};