diff options
Diffstat (limited to 'drivers/clk/at91/clk-utmi.c')
| -rw-r--r-- | drivers/clk/at91/clk-utmi.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c index df9f3fc3b6a6..a22c10d9a1b9 100644 --- a/drivers/clk/at91/clk-utmi.c +++ b/drivers/clk/at91/clk-utmi.c @@ -23,6 +23,7 @@ struct clk_utmi { struct clk_hw hw; struct regmap *regmap_pmc; struct regmap *regmap_sfr; + struct at91_clk_pms pms; }; #define to_clk_utmi(hw) container_of(hw, struct clk_utmi, hw) @@ -113,11 +114,30 @@ static unsigned long clk_utmi_recalc_rate(struct clk_hw *hw, return UTMI_RATE; } +static int clk_utmi_save_context(struct clk_hw *hw) +{ + struct clk_utmi *utmi = to_clk_utmi(hw); + + utmi->pms.status = clk_utmi_is_prepared(hw); + + return 0; +} + +static void clk_utmi_restore_context(struct clk_hw *hw) +{ + struct clk_utmi *utmi = to_clk_utmi(hw); + + if (utmi->pms.status) + clk_utmi_prepare(hw); +} + static const struct clk_ops utmi_ops = { .prepare = clk_utmi_prepare, .unprepare = clk_utmi_unprepare, .is_prepared = clk_utmi_is_prepared, .recalc_rate = clk_utmi_recalc_rate, + .save_context = clk_utmi_save_context, + .restore_context = clk_utmi_restore_context, }; static struct clk_hw * __init @@ -232,10 +252,29 @@ static int clk_utmi_sama7g5_is_prepared(struct clk_hw *hw) return 0; } +static int clk_utmi_sama7g5_save_context(struct clk_hw *hw) +{ + struct clk_utmi *utmi = to_clk_utmi(hw); + + utmi->pms.status = clk_utmi_sama7g5_is_prepared(hw); + + return 0; +} + +static void clk_utmi_sama7g5_restore_context(struct clk_hw *hw) +{ + struct clk_utmi *utmi = to_clk_utmi(hw); + + if (utmi->pms.status) + clk_utmi_sama7g5_prepare(hw); +} + static const struct clk_ops sama7g5_utmi_ops = { .prepare = clk_utmi_sama7g5_prepare, .is_prepared = clk_utmi_sama7g5_is_prepared, .recalc_rate = clk_utmi_recalc_rate, + .save_context = clk_utmi_sama7g5_save_context, + .restore_context = clk_utmi_sama7g5_restore_context, }; struct clk_hw * __init |