[PATCH 17/18] power: reset: syscon-poweroff: Move device data into a struct

Andrew Davis
2024-02-01T18:01:31Z

Currently all these device data elements are top level global variables.
Move these into a struct. This will be used in the next patch when
the global variable usage is removed. Doing this in two steps makes
the patches easier to read.

Signed-off-by: Andrew Davis <afd@ti.com>
---
drivers/power/reset/syscon-poweroff.c | 36 +++++++++++++++------------
1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/power/reset/syscon-poweroff.c b/drivers/power/reset/syscon-poweroff.c
index 1b2ce7734260c..4899a019256e8 100644
--- a/drivers/power/reset/syscon-poweroff.c
+++ b/drivers/power/reset/syscon-poweroff.c
@@ -15,15 +15,19 @@
#include <linux/pm.h>
#include <linux/regmap.h>

-static struct regmap *map;
-static u32 offset;
-static u32 value;
-static u32 mask;
+struct syscon_poweroff_data {
+ struct regmap *map;
+ u32 offset;
+ u32 value;
+ u32 mask;
+};
+
+static struct syscon_poweroff_data *data;

static void syscon_poweroff(void)
{
/* Issue the poweroff */
- regmap_update_bits(map, offset, mask, value);
+ regmap_update_bits(data->map, data->offset, data->mask, data->value);

mdelay(1000);

@@ -35,22 +39,22 @@ static int syscon_poweroff_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int mask_err, value_err;

- map = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap");
- if (IS_ERR(map)) {
- map = syscon_node_to_regmap(dev->parent->of_node);
- if (IS_ERR(map)) {
+ data->map = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap");
+ if (IS_ERR(data->map)) {
+ data->map = syscon_node_to_regmap(dev->parent->of_node);
+ if (IS_ERR(data->map)) {
dev_err(dev, "unable to get syscon");
- return PTR_ERR(map);
+ return PTR_ERR(data->map);
}
}

- if (of_property_read_u32(dev->of_node, "offset", &offset)) {
+ if (of_property_read_u32(dev->of_node, "offset", &data->offset)) {
dev_err(dev, "unable to read 'offset'");
return -EINVAL;
}

- value_err = of_property_read_u32(dev->of_node, "value", &value);
- mask_err = of_property_read_u32(dev->of_node, "mask", &mask);
+ value_err = of_property_read_u32(dev->of_node, "value", &data->value);
+ mask_err = of_property_read_u32(dev->of_node, "mask", &data->mask);
if (value_err && mask_err) {
dev_err(dev, "unable to read 'value' and 'mask'");
return -EINVAL;
@@ -58,11 +62,11 @@ static int syscon_poweroff_probe(struct platform_device *pdev)

if (value_err) {
/* support old binding */
- value = mask;
- mask = 0xFFFFFFFF;
+ data->value = data->mask;
+ data->mask = 0xFFFFFFFF;
} else if (mask_err) {
/* support value without mask*/
- mask = 0xFFFFFFFF;
+ data->mask = 0xFFFFFFFF;
}

if (pm_power_off) {
--
2.39.2