diff options
Diffstat (limited to 'drivers/clk/at91/clk-system.c')
| -rw-r--r-- | drivers/clk/at91/clk-system.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c index f83ec0de86c3..80720fd1a9cf 100644 --- a/drivers/clk/at91/clk-system.c +++ b/drivers/clk/at91/clk-system.c @@ -20,6 +20,7 @@ struct clk_system { struct clk_hw hw; struct regmap *regmap; + struct at91_clk_pms pms; u8 id; }; @@ -77,10 +78,29 @@ static int clk_system_is_prepared(struct clk_hw *hw) return !!(status & (1 << sys->id)); } +static int clk_system_save_context(struct clk_hw *hw) +{ + struct clk_system *sys = to_clk_system(hw); + + sys->pms.status = clk_system_is_prepared(hw); + + return 0; +} + +static void clk_system_restore_context(struct clk_hw *hw) +{ + struct clk_system *sys = to_clk_system(hw); + + if (sys->pms.status) + clk_system_prepare(&sys->hw); +} + static const struct clk_ops system_ops = { .prepare = clk_system_prepare, .unprepare = clk_system_unprepare, .is_prepared = clk_system_is_prepared, + .save_context = clk_system_save_context, + .restore_context = clk_system_restore_context, }; struct clk_hw * __init |