[PATCH] regulator: tps65917/palmas: Simplify multiple dereference of ddata->palmas_matches[idx]

From: Nishanth Menon
Date: Thu May 05 2016 - 20:29:49 EST


Converting dt to platform data logic involves picking up information
that is unique per regulator, however we can improve readability of
the code by dereferencing ddata->palmas_matches[idx] once in the loop.

While at it fix reuse of generic palmas_matches common variable
while reporting error for a specific regulator (which may be from
65917/palmas list).

Signed-off-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
drivers/regulator/palmas-regulator.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index c83e06b2cedb..41b4e94a8d7d 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -1491,21 +1491,23 @@ static void palmas_dt_to_pdata(struct device *dev,
}

for (idx = 0; idx < ddata->max_reg; idx++) {
- if (!ddata->palmas_matches[idx].init_data ||
- !ddata->palmas_matches[idx].of_node)
+ static struct of_regulator_match *match;
+
+ match = &ddata->palmas_matches[idx];
+
+ if (!match->init_data || !match->of_node)
continue;

- pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data;
+ pdata->reg_data[idx] = match->init_data;

pdata->reg_init[idx] = devm_kzalloc(dev,
sizeof(struct palmas_reg_init), GFP_KERNEL);

pdata->reg_init[idx]->warm_reset =
- of_property_read_bool(ddata->palmas_matches[idx].of_node,
- "ti,warm-reset");
+ of_property_read_bool(match->of_node, "ti,warm-reset");

- ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
- "ti,roof-floor", &prop);
+ ret = of_property_read_u32(match->of_node, "ti,roof-floor",
+ &prop);
/* EINVAL: Property not found */
if (ret != -EINVAL) {
int econtrol;
@@ -1527,27 +1529,26 @@ static void palmas_dt_to_pdata(struct device *dev,
WARN_ON(1);
dev_warn(dev,
"%s: Invalid roof-floor option: %u\n",
- palmas_matches[idx].name, prop);
+ match->name, prop);
break;
}
}
pdata->reg_init[idx]->roof_floor = econtrol;
}

- ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
- "ti,mode-sleep", &prop);
+ ret = of_property_read_u32(match->of_node, "ti,mode-sleep",
+ &prop);
if (!ret)
pdata->reg_init[idx]->mode_sleep = prop;

- ret = of_property_read_bool(ddata->palmas_matches[idx].of_node,
- "ti,smps-range");
+ ret = of_property_read_bool(match->of_node, "ti,smps-range");
if (ret)
pdata->reg_init[idx]->vsel =
PALMAS_SMPS12_VOLTAGE_RANGE;

if (idx == PALMAS_REG_LDO8)
pdata->enable_ldo8_tracking = of_property_read_bool(
- ddata->palmas_matches[idx].of_node,
+ match->of_node,
"ti,enable-ldo8-tracking");
}

--
2.8.1