mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
50 lines
1.3 KiB
Diff
50 lines
1.3 KiB
Diff
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Fix double negation of bitmask in dc_ep_icu_disable andwr32_mask.
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Also add locking to ensure the masking is applied atomically.
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--- a/misc.c
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+++ b/misc.c
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@@ -68,12 +68,22 @@ void dc_ep_icu_disable(struct dc_ep_priv
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void dc_ep_icu_dis_intr(struct dc_ep_priv *priv, u32 bits)
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{
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- wr32_mask(~bits, 0, ICU_IMER);
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+ struct dc_aca *aca = to_aca(priv);
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+ unsigned long flags;
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+
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+ spin_lock_irqsave(&aca->icu_lock, flags);
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+ wr32_mask(bits, 0, ICU_IMER);
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+ spin_unlock_irqrestore(&aca->icu_lock, flags);
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}
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void dc_ep_icu_en_intr(struct dc_ep_priv *priv, u32 bits)
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{
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+ struct dc_aca *aca = to_aca(priv);
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+ unsigned long flags;
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+
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+ spin_lock_irqsave(&aca->icu_lock, flags);
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wr32_mask(0, bits, ICU_IMER);
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+ spin_unlock_irqrestore(&aca->icu_lock, flags);
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}
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void dc_ep_assert_device(struct dc_ep_priv *priv, u32 bits)
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--- a/aca.c
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+++ b/aca.c
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@@ -1158,6 +1158,7 @@ void dc_aca_info_init(struct dc_ep_priv
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struct dc_aca *aca = to_aca(priv);
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aca->initialized = false;
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+ spin_lock_init(&aca->icu_lock);
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spin_lock_init(&aca->clk_lock);
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spin_lock_init(&aca->rcu_lock);
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mutex_init(&aca->pin_lock);
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--- a/aca.h
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+++ b/aca.h
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@@ -470,6 +470,7 @@ struct aca_hif_params {
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struct dc_aca {
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bool initialized;
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+ spinlock_t icu_lock;
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spinlock_t clk_lock;
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spinlock_t rcu_lock;
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struct mutex pin_lock;
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