diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/clk/clk-versaclock5.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c index decffb3826ec..5b393e711e94 100644 --- a/drivers/clk/clk-versaclock5.c +++ b/drivers/clk/clk-versaclock5.c @@ -906,6 +906,28 @@ static int vc5_remove(struct i2c_client *client) return 0; } +static int __maybe_unused vc5_suspend(struct device *dev) +{ + struct vc5_driver_data *vc5 = dev_get_drvdata(dev); + + regcache_cache_only(vc5->regmap, true); + regcache_mark_dirty(vc5->regmap); + + return 0; +} + +static int __maybe_unused vc5_resume(struct device *dev) +{ + struct vc5_driver_data *vc5 = dev_get_drvdata(dev); + int ret; + + regcache_cache_only(vc5->regmap, false); + ret = regcache_sync(vc5->regmap); + if (ret) + dev_err(dev, "Failed to restore register map: %d\n", ret); + return ret; +} + static const struct vc5_chip_info idt_5p49v5923_info = { .model = IDT_VC5_5P49V5923, .clk_fod_cnt = 2, @@ -961,9 +983,12 @@ static const struct of_device_id clk_vc5_of_match[] = { }; MODULE_DEVICE_TABLE(of, clk_vc5_of_match); +static SIMPLE_DEV_PM_OPS(vc5_pm_ops, vc5_suspend, vc5_resume); + static struct i2c_driver vc5_driver = { .driver = { .name = "vc5", + .pm = &vc5_pm_ops, .of_match_table = clk_vc5_of_match, }, .probe = vc5_probe, |