@@ -25,6 +25,8 @@
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/remoteproc.h>
@@ -131,6 +133,7 @@ struct rproc_hexagon_res {
char **proxy_clk_names;
char **reset_clk_names;
char **active_clk_names;
+ char **proxy_pd_names;
int version;
bool need_mem_protection;
bool has_alt_reset;
@@ -156,9 +159,11 @@ struct q6v5 {
struct clk *active_clks[8];
struct clk *reset_clks[4];
struct clk *proxy_clks[4];
+ struct device *proxy_pds[3];
int active_clk_count;
int reset_clk_count;
int proxy_clk_count;
+ int proxy_pd_count;
struct reg_info active_regs[1];
struct reg_info proxy_regs[3];
@@ -321,6 +326,41 @@ static void q6v5_clk_disable(struct device *dev,
clk_disable_unprepare(clks[i]);
}
+static int q6v5_pds_enable(struct q6v5 *qproc, struct device **pds,
+ size_t pd_count)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < pd_count; i++) {
+ dev_pm_genpd_set_performance_state(pds[i], INT_MAX);
+ ret = pm_runtime_get_sync(pds[i]);
+ if (ret < 0)
+ goto unroll_pd_votes;
+ }
+
+ return 0;
+
+unroll_pd_votes:
+ for (i--; i >= 0; i--) {
+ dev_pm_genpd_set_performance_state(pds[i], 0);
+ pm_runtime_put(pds[i]);
+ }
+
+ return ret;
+};
+
+static void q6v5_pds_disable(struct q6v5 *qproc, struct device **pds,
+ size_t pd_count)
+{
+ int i;
+
+ for (i = 0; i < pd_count; i++) {
+ dev_pm_genpd_set_performance_state(pds[i], 0);
+ pm_runtime_put(pds[i]);
+ }
+}
+
static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
bool remote_owner, phys_addr_t addr,
size_t size)
@@ -690,11 +730,17 @@ static int q6v5_mba_load(struct q6v5 *qproc)
qcom_q6v5_prepare(&qproc->q6v5);
+ ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+ if (ret < 0) {
+ dev_err(qproc->dev, "failed to enable proxy power domains\n");
+ goto disable_irqs;
+ }
+
ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
qproc->proxy_reg_count);
if (ret) {
dev_err(qproc->dev, "failed to enable proxy supplies\n");
- goto disable_irqs;
+ goto disable_proxy_pds;
}
ret = q6v5_clk_enable(qproc->dev, qproc->proxy_clks,
@@ -791,6 +837,8 @@ static int q6v5_mba_load(struct q6v5 *qproc)
disable_proxy_reg:
q6v5_regulator_disable(qproc, qproc->proxy_regs,
qproc->proxy_reg_count);
+disable_proxy_pds:
+ q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
disable_irqs:
qcom_q6v5_unprepare(&qproc->q6v5);
@@ -841,6 +889,8 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
ret = qcom_q6v5_unprepare(&qproc->q6v5);
if (ret) {
+ q6v5_pds_disable(qproc, qproc->proxy_pds,
+ qproc->proxy_pd_count);
q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
qproc->proxy_clk_count);
q6v5_regulator_disable(qproc, qproc->proxy_regs,
@@ -1121,6 +1171,7 @@ static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
qproc->proxy_clk_count);
q6v5_regulator_disable(qproc, qproc->proxy_regs,
qproc->proxy_reg_count);
+ q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
}
static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
@@ -1181,6 +1232,45 @@ static int q6v5_init_clocks(struct device *dev, struct clk **clks,
return i;
}
+static int q6v5_pds_attach(struct device *dev, struct device **devs,
+ char **pd_names)
+{
+ size_t num_pds = 0;
+ int ret;
+ int i;
+
+ if (!pd_names)
+ return 0;
+
+ while (pd_names[num_pds])
+ num_pds++;
+
+ for (i = 0; i < num_pds; i++) {
+ devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]);
+ if (IS_ERR(devs[i])) {
+ ret = PTR_ERR(devs[i]);
+ goto unroll_attach;
+ }
+ }
+
+ return num_pds;
+
+unroll_attach:
+ for (i--; i >= 0; i--)
+ dev_pm_domain_detach(devs[i], false);
+
+ return ret;
+};
+
+static void q6v5_pds_detach(struct q6v5 *qproc, struct device **pds,
+ size_t pd_count)
+{
+ int i;
+
+ for (i = 0; i < pd_count; i++)
+ dev_pm_domain_detach(pds[i], false);
+}
+
static int q6v5_init_reset(struct q6v5 *qproc)
{
qproc->mss_restart = devm_reset_control_get_exclusive(qproc->dev,
@@ -1322,10 +1412,18 @@ static int q6v5_probe(struct platform_device *pdev)
}
qproc->active_reg_count = ret;
+ ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
+ desc->proxy_pd_names);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to init power domains\n");
+ goto free_rproc;
+ }
+ qproc->proxy_pd_count = ret;
+
qproc->has_alt_reset = desc->has_alt_reset;
ret = q6v5_init_reset(qproc);
if (ret)
- goto free_rproc;
+ goto detach_proxy_pds;
qproc->version = desc->version;
qproc->need_mem_protection = desc->need_mem_protection;
@@ -1333,7 +1431,7 @@ static int q6v5_probe(struct platform_device *pdev)
ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
qcom_msa_handover);
if (ret)
- goto free_rproc;
+ goto detach_proxy_pds;
qproc->mpss_perm = BIT(QCOM_SCM_VMID_HLOS);
qproc->mba_perm = BIT(QCOM_SCM_VMID_HLOS);
@@ -1344,10 +1442,12 @@ static int q6v5_probe(struct platform_device *pdev)
ret = rproc_add(rproc);
if (ret)
- goto free_rproc;
+ goto detach_proxy_pds;
return 0;
+detach_proxy_pds:
+ q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
free_rproc:
rproc_free(rproc);
@@ -1364,6 +1464,9 @@ static int q6v5_remove(struct platform_device *pdev)
qcom_remove_glink_subdev(qproc->rproc, &qproc->glink_subdev);
qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
+
+ q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+
rproc_free(qproc->rproc);
return 0;
@@ -1388,6 +1491,12 @@ static const struct rproc_hexagon_res sdm845_mss = {
"mnoc_axi",
NULL
},
+ .proxy_pd_names = (char*[]){
+ "cx",
+ "mx",
+ "mss",
+ NULL
+ },
.need_mem_protection = true,
.has_alt_reset = true,
.version = MSS_SDM845,