From 06856269d43ab3ce6609c90a6e42bcd9564eaa02 Mon Sep 17 00:00:00 2001 From: Barry Song Date: Wed, 9 Sep 2020 16:10:01 +1200 Subject: [PATCH] i2c: busses: replace spin_lock_irqsave by spin_lock in hard IRQ The code has been in a irq-disabled context since it is hard IRQ. There is no necessity to do it again. Signed-off-by: Barry Song Reviewed-by: Akash Asthana Reviewed-by: Mukesh Kumar Savaliya Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-mv64xxx.c | 5 ++--- drivers/i2c/busses/i2c-owl.c | 5 ++--- drivers/i2c/busses/i2c-qcom-geni.c | 5 ++--- 3 files changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index 8d9d4ffdcd24..e0e45fc19b8f 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -496,11 +496,10 @@ static irqreturn_t mv64xxx_i2c_intr(int irq, void *dev_id) { struct mv64xxx_i2c_data *drv_data = dev_id; - unsigned long flags; u32 status; irqreturn_t rc = IRQ_NONE; - spin_lock_irqsave(&drv_data->lock, flags); + spin_lock(&drv_data->lock); if (drv_data->offload_enabled) rc = mv64xxx_i2c_intr_offload(drv_data); @@ -517,7 +516,7 @@ mv64xxx_i2c_intr(int irq, void *dev_id) rc = IRQ_HANDLED; } - spin_unlock_irqrestore(&drv_data->lock, flags); + spin_unlock(&drv_data->lock); return rc; } diff --git a/drivers/i2c/busses/i2c-owl.c b/drivers/i2c/busses/i2c-owl.c index 672f1f239bd6..618d3013d0b6 100644 --- a/drivers/i2c/busses/i2c-owl.c +++ b/drivers/i2c/busses/i2c-owl.c @@ -165,10 +165,9 @@ static irqreturn_t owl_i2c_interrupt(int irq, void *_dev) { struct owl_i2c_dev *i2c_dev = _dev; struct i2c_msg *msg = i2c_dev->msg; - unsigned long flags; unsigned int stat, fifostat; - spin_lock_irqsave(&i2c_dev->lock, flags); + spin_lock(&i2c_dev->lock); i2c_dev->err = 0; @@ -208,7 +207,7 @@ stop: OWL_I2C_STAT_IRQP, true); complete_all(&i2c_dev->msg_complete); - spin_unlock_irqrestore(&i2c_dev->lock, flags); + spin_unlock(&i2c_dev->lock); return IRQ_HANDLED; } diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index dead5db3315a..8b4c35f47a70 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -210,9 +210,8 @@ static irqreturn_t geni_i2c_irq(int irq, void *dev) u32 dma; u32 val; struct i2c_msg *cur; - unsigned long flags; - spin_lock_irqsave(&gi2c->lock, flags); + spin_lock(&gi2c->lock); m_stat = readl_relaxed(base + SE_GENI_M_IRQ_STATUS); rx_st = readl_relaxed(base + SE_GENI_RX_FIFO_STATUS); dm_tx_st = readl_relaxed(base + SE_DMA_TX_IRQ_STAT); @@ -294,7 +293,7 @@ static irqreturn_t geni_i2c_irq(int irq, void *dev) dm_rx_st & RX_DMA_DONE || dm_rx_st & RX_RESET_DONE) complete(&gi2c->done); - spin_unlock_irqrestore(&gi2c->lock, flags); + spin_unlock(&gi2c->lock); return IRQ_HANDLED; }