[PATCH V5 05/10] PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage()

[Viresh Kumar]

Pass the entire supply structure instead of all of its fields.

Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
Tested-by: Dave Gerlach <d-gerl...@ti.com>
Reviewed-by: Stephen Boyd <sb...@codeaurora.org>
---
 drivers/base/power/opp/core.c | 44 +++++++++++++++++--------------------------
 1 file changed, 17 insertions(+), 27 deletions(-)

diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index 8d6006151c9a..37fad2eb0f47 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -542,8 +542,7 @@ static struct clk *_get_opp_clk(struct device *dev)
 }
 
 static int _set_opp_voltage(struct device *dev, struct regulator *reg,
-                           unsigned long u_volt, unsigned long u_volt_min,
-                           unsigned long u_volt_max)
+                           struct dev_pm_opp_supply *supply)
 {
        int ret;
 
@@ -554,14 +553,15 @@ static int _set_opp_voltage(struct device *dev, struct 
regulator *reg,
                return 0;
        }
 
-       dev_dbg(dev, "%s: voltages (mV): %lu %lu %lu\n", __func__, u_volt_min,
-               u_volt, u_volt_max);
+       dev_dbg(dev, "%s: voltages (mV): %lu %lu %lu\n", __func__,
+               supply->u_volt_min, supply->u_volt, supply->u_volt_max);
 
-       ret = regulator_set_voltage_triplet(reg, u_volt_min, u_volt,
-                                           u_volt_max);
+       ret = regulator_set_voltage_triplet(reg, supply->u_volt_min,
+                                           supply->u_volt, supply->u_volt_max);
        if (ret)
                dev_err(dev, "%s: failed to set voltage (%lu %lu %lu mV): %d\n",
-                       __func__, u_volt_min, u_volt, u_volt_max, ret);
+                       __func__, supply->u_volt_min, supply->u_volt,
+                       supply->u_volt_max, ret);
 
        return ret;
 }
@@ -583,8 +583,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long 
target_freq)
        struct regulator *reg;
        struct clk *clk;
        unsigned long freq, old_freq;
-       unsigned long u_volt, u_volt_min, u_volt_max;
-       unsigned long old_u_volt, old_u_volt_min, old_u_volt_max;
+       struct dev_pm_opp_supply old_supply, new_supply;
        int ret;
 
        if (unlikely(!target_freq)) {
@@ -634,17 +633,12 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long 
target_freq)
                return ret;
        }
 
-       if (IS_ERR(old_opp)) {
-               old_u_volt = 0;
-       } else {
-               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;
-       }
+       if (IS_ERR(old_opp))
+               old_supply.u_volt = 0;
+       else
+               memcpy(&old_supply, &old_opp->supply, sizeof(old_supply));
 
-       u_volt = opp->supply.u_volt;
-       u_volt_min = opp->supply.u_volt_min;
-       u_volt_max = opp->supply.u_volt_max;
+       memcpy(&new_supply, &opp->supply, sizeof(new_supply));
 
        reg = opp_table->regulator;
 
@@ -652,8 +646,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long 
target_freq)
 
        /* Scaling up? Scale voltage before frequency */
        if (freq > old_freq) {
-               ret = _set_opp_voltage(dev, reg, u_volt, u_volt_min,
-                                      u_volt_max);
+               ret = _set_opp_voltage(dev, reg, &new_supply);
                if (ret)
                        goto restore_voltage;
        }
@@ -672,8 +665,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long 
target_freq)
 
        /* Scaling down? Scale voltage after frequency */
        if (freq < old_freq) {
-               ret = _set_opp_voltage(dev, reg, u_volt, u_volt_min,
-                                      u_volt_max);
+               ret = _set_opp_voltage(dev, reg, &new_supply);
                if (ret)
                        goto restore_freq;
        }
@@ -686,10 +678,8 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long 
target_freq)
                        __func__, old_freq);
 restore_voltage:
        /* This shouldn't harm even if the voltages weren't updated earlier */
-       if (old_u_volt) {
-               _set_opp_voltage(dev, reg, old_u_volt, old_u_volt_min,
-                                old_u_volt_max);
-       }
+       if (old_supply.u_volt)
+               _set_opp_voltage(dev, reg, &old_supply);
 
        return ret;
 }
-- 
2.7.1.410.g6faf27b