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mfd: max96755f: Enable regcache

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Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
Change-Id: I1554f964da231b2b0557010fee31dcfbeda3997a
This commit is contained in:
Guochun Huang
2022-08-20 15:25:23 +08:00
committed by Tao Huang
parent 3bc2463118
commit ccf03b5e2d
1 changed files with 45 additions and 0 deletions
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45
drivers/mfd/max96755f.c
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@@ -37,11 +37,33 @@ static const struct mfd_cell max96755f_devs[] = {
},
};
static bool max96755f_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x0002:
case 0x0010:
case 0x0013:
case 0x0053:
case 0x0057:
case 0x02be ... 0x02fc:
case 0x0311:
case 0x032a:
case 0x0330 ... 0x0331:
case 0x0385 ... 0x0387:
case 0x03a4 ... 0x03ae:
return false;
default:
return true;
}
}
static const struct regmap_config max96755f_regmap_config = {
.name = "max96755f",
.reg_bits = 16,
.val_bits = 8,
.max_register = 0x1b17,
.volatile_reg = max96755f_volatile_reg,
.cache_type = REGCACHE_RBTREE,
};
static int max96755f_select(struct i2c_mux_core *muxc, u32 chan)
@@ -309,6 +331,28 @@ static void max96755f_i2c_shutdown(struct i2c_client *client)
max96755f_power_off(max96755f);
}
static int __maybe_unused max96755f_suspend(struct device *dev)
{
struct max96755f *max96755f = dev_get_drvdata(dev);
regcache_mark_dirty(max96755f->regmap);
regcache_cache_only(max96755f->regmap, true);
return 0;
}
static int __maybe_unused max96755f_resume(struct device *dev)
{
struct max96755f *max96755f = dev_get_drvdata(dev);
regcache_cache_only(max96755f->regmap, false);
regcache_sync(max96755f->regmap);
return 0;
}
static SIMPLE_DEV_PM_OPS(max96755f_pm_ops, max96755f_suspend, max96755f_resume);
static const struct of_device_id max96755f_of_match[] = {
{ .compatible = "maxim,max96755f", },
{}
@@ -319,6 +363,7 @@ static struct i2c_driver max96755f_i2c_driver = {
.driver = {
.name = "max96755f",
.of_match_table = max96755f_of_match,
.pm = &max96755f_pm_ops,
},
.probe_new = max96755f_i2c_probe,
.remove = max96755f_i2c_remove,