This is a preparatory step for multiple regulator per device support. Move the voltage/current variables to a new structure.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Tested-by: Dave Gerlach d-gerlach@ti.com --- drivers/base/power/opp/core.c | 44 +++++++++++++++++++++------------------- drivers/base/power/opp/debugfs.c | 8 ++++---- drivers/base/power/opp/of.c | 18 ++++++++-------- drivers/base/power/opp/opp.h | 11 +++------- include/linux/pm_opp.h | 16 +++++++++++++++ 5 files changed, 55 insertions(+), 42 deletions(-)
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c index 056527a3fb4e..8d6006151c9a 100644 --- a/drivers/base/power/opp/core.c +++ b/drivers/base/power/opp/core.c @@ -112,7 +112,7 @@ unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) if (IS_ERR_OR_NULL(tmp_opp)) pr_err("%s: Invalid parameters\n", __func__); else - v = tmp_opp->u_volt; + v = tmp_opp->supply.u_volt;
return v; } @@ -246,10 +246,10 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) if (!opp->available) continue;
- if (opp->u_volt_min < min_uV) - min_uV = opp->u_volt_min; - if (opp->u_volt_max > max_uV) - max_uV = opp->u_volt_max; + if (opp->supply.u_volt_min < min_uV) + min_uV = opp->supply.u_volt_min; + if (opp->supply.u_volt_max > max_uV) + max_uV = opp->supply.u_volt_max; }
rcu_read_unlock(); @@ -637,14 +637,14 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) if (IS_ERR(old_opp)) { old_u_volt = 0; } else { - old_u_volt = old_opp->u_volt; - old_u_volt_min = old_opp->u_volt_min; - old_u_volt_max = old_opp->u_volt_max; + old_u_volt = old_opp->supply.u_volt; + old_u_volt_min = old_opp->supply.u_volt_min; + old_u_volt_max = old_opp->supply.u_volt_max; }
- u_volt = opp->u_volt; - u_volt_min = opp->u_volt_min; - u_volt_max = opp->u_volt_max; + u_volt = opp->supply.u_volt; + u_volt_min = opp->supply.u_volt_min; + u_volt_max = opp->supply.u_volt_max;
reg = opp_table->regulator;
@@ -957,10 +957,11 @@ static bool _opp_supported_by_regulators(struct dev_pm_opp *opp, struct regulator *reg = opp_table->regulator;
if (!IS_ERR(reg) && - !regulator_is_supported_voltage(reg, opp->u_volt_min, - opp->u_volt_max)) { + !regulator_is_supported_voltage(reg, opp->supply.u_volt_min, + opp->supply.u_volt_max)) { pr_warn("%s: OPP minuV: %lu maxuV: %lu, not supported by regulator\n", - __func__, opp->u_volt_min, opp->u_volt_max); + __func__, opp->supply.u_volt_min, + opp->supply.u_volt_max); return false; }
@@ -993,11 +994,12 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp,
/* Duplicate OPPs */ dev_warn(dev, "%s: duplicate OPPs detected. Existing: freq: %lu, volt: %lu, enabled: %d. New: freq: %lu, volt: %lu, enabled: %d\n", - __func__, opp->rate, opp->u_volt, opp->available, - new_opp->rate, new_opp->u_volt, new_opp->available); + __func__, opp->rate, opp->supply.u_volt, + opp->available, new_opp->rate, new_opp->supply.u_volt, + new_opp->available);
- return opp->available && new_opp->u_volt == opp->u_volt ? - 0 : -EEXIST; + return opp->available && + new_opp->supply.u_volt == opp->supply.u_volt ? 0 : -EEXIST; }
new_opp->opp_table = opp_table; @@ -1064,9 +1066,9 @@ int _opp_add_v1(struct device *dev, unsigned long freq, long u_volt, /* populate the opp table */ new_opp->rate = freq; tol = u_volt * opp_table->voltage_tolerance_v1 / 100; - new_opp->u_volt = u_volt; - new_opp->u_volt_min = u_volt - tol; - new_opp->u_volt_max = u_volt + tol; + new_opp->supply.u_volt = u_volt; + new_opp->supply.u_volt_min = u_volt - tol; + new_opp->supply.u_volt_max = u_volt + tol; new_opp->available = true; new_opp->dynamic = dynamic;
diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c index ef1ae6b52042..c897676ca35f 100644 --- a/drivers/base/power/opp/debugfs.c +++ b/drivers/base/power/opp/debugfs.c @@ -63,16 +63,16 @@ int opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table) if (!debugfs_create_ulong("rate_hz", S_IRUGO, d, &opp->rate)) return -ENOMEM;
- if (!debugfs_create_ulong("u_volt_target", S_IRUGO, d, &opp->u_volt)) + if (!debugfs_create_ulong("u_volt_target", S_IRUGO, d, &opp->supply.u_volt)) return -ENOMEM;
- if (!debugfs_create_ulong("u_volt_min", S_IRUGO, d, &opp->u_volt_min)) + if (!debugfs_create_ulong("u_volt_min", S_IRUGO, d, &opp->supply.u_volt_min)) return -ENOMEM;
- if (!debugfs_create_ulong("u_volt_max", S_IRUGO, d, &opp->u_volt_max)) + if (!debugfs_create_ulong("u_volt_max", S_IRUGO, d, &opp->supply.u_volt_max)) return -ENOMEM;
- if (!debugfs_create_ulong("u_amp", S_IRUGO, d, &opp->u_amp)) + if (!debugfs_create_ulong("u_amp", S_IRUGO, d, &opp->supply.u_amp)) return -ENOMEM;
if (!debugfs_create_ulong("clock_latency_ns", S_IRUGO, d, diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c index 5b3755e49731..bdf409d42126 100644 --- a/drivers/base/power/opp/of.c +++ b/drivers/base/power/opp/of.c @@ -148,14 +148,14 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev, return -EINVAL; }
- opp->u_volt = microvolt[0]; + opp->supply.u_volt = microvolt[0];
if (count == 1) { - opp->u_volt_min = opp->u_volt; - opp->u_volt_max = opp->u_volt; + opp->supply.u_volt_min = opp->supply.u_volt; + opp->supply.u_volt_max = opp->supply.u_volt; } else { - opp->u_volt_min = microvolt[1]; - opp->u_volt_max = microvolt[2]; + opp->supply.u_volt_min = microvolt[1]; + opp->supply.u_volt_max = microvolt[2]; }
/* Search for "opp-microamp-<name>" */ @@ -173,7 +173,7 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev, }
if (prop && !of_property_read_u32(opp->np, name, &val)) - opp->u_amp = val; + opp->supply.u_amp = val;
return 0; } @@ -303,9 +303,9 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) mutex_unlock(&opp_table_lock);
pr_debug("%s: turbo:%d rate:%lu uv:%lu uvmin:%lu uvmax:%lu latency:%lu\n", - __func__, new_opp->turbo, new_opp->rate, new_opp->u_volt, - new_opp->u_volt_min, new_opp->u_volt_max, - new_opp->clock_latency_ns); + __func__, new_opp->turbo, new_opp->rate, + new_opp->supply.u_volt, new_opp->supply.u_volt_min, + new_opp->supply.u_volt_max, new_opp->clock_latency_ns);
/* * Notify the changes in the availability of the operable diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h index 96cd30ac6c1d..8a02516542c2 100644 --- a/drivers/base/power/opp/opp.h +++ b/drivers/base/power/opp/opp.h @@ -61,10 +61,7 @@ extern struct list_head opp_tables; * @turbo: true if turbo (boost) OPP * @suspend: true if suspend OPP * @rate: Frequency in hertz - * @u_volt: Target voltage in microvolts corresponding to this OPP - * @u_volt_min: Minimum voltage in microvolts corresponding to this OPP - * @u_volt_max: Maximum voltage in microvolts corresponding to this OPP - * @u_amp: Maximum current drawn by the device in microamperes + * @supply: Power supply voltage/current values * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's * frequency from any other OPP's frequency. * @opp_table: points back to the opp_table struct this opp belongs to @@ -83,10 +80,8 @@ struct dev_pm_opp { bool suspend; unsigned long rate;
- unsigned long u_volt; - unsigned long u_volt_min; - unsigned long u_volt_max; - unsigned long u_amp; + struct dev_pm_opp_supply supply; + unsigned long clock_latency_ns;
struct opp_table *opp_table; diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index bca26157f5b6..f69126e2bb59 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -24,6 +24,22 @@ enum dev_pm_opp_event { OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, };
+/** + * struct dev_pm_opp_supply - Power supply voltage/current values + * @u_volt: Target voltage in microvolts corresponding to this OPP + * @u_volt_min: Minimum voltage in microvolts corresponding to this OPP + * @u_volt_max: Maximum voltage in microvolts corresponding to this OPP + * @u_amp: Maximum current drawn by the device in microamperes + * + * This structure stores the voltage/current values for a single power supply. + */ +struct dev_pm_opp_supply { + unsigned long u_volt; + unsigned long u_volt_min; + unsigned long u_volt_max; + unsigned long u_amp; +}; + #if defined(CONFIG_PM_OPP)
unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);