ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 12:43:29 +02:00
Code Issues Packages Projects Releases Wiki Activity

i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ

Browse Source 
There is no need to do irqsave and irqrestore in context of hard IRQ.

Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Weihang Li
2021-02-08 18:48:37 +08:00
committed by Wolfram Sang
parent 679c314b84
commit bb3fe9ff53
2 changed files with 4 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/i2c/busses/i2c-digicolor.c
View File

@@ -160,12 +160,11 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id)
{ {
struct dc_i2c *i2c = dev_id; struct dc_i2c *i2c = dev_id;
int cmd_status = dc_i2c_cmd_status(i2c); int cmd_status = dc_i2c_cmd_status(i2c);
unsigned long flags;
u8 addr_cmd; u8 addr_cmd;
writeb_relaxed(1, i2c->regs + II_INTFLAG_CLEAR); writeb_relaxed(1, i2c->regs + II_INTFLAG_CLEAR);
spin_lock_irqsave(&i2c->lock, flags); spin_lock(&i2c->lock);
if (cmd_status == II_CMD_STATUS_ACK_BAD if (cmd_status == II_CMD_STATUS_ACK_BAD
|| cmd_status == II_CMD_STATUS_ABORT) { || cmd_status == II_CMD_STATUS_ABORT) {
@@ -207,7 +206,7 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id)
} }
out: out:
spin_unlock_irqrestore(&i2c->lock, flags); spin_unlock(&i2c->lock);
return IRQ_HANDLED; return IRQ_HANDLED;
} }

5
drivers/i2c/busses/i2c-jz4780.c
View File

@@ -437,9 +437,8 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id)
unsigned short intst; unsigned short intst;
unsigned short intmsk; unsigned short intmsk;
struct jz4780_i2c *i2c = dev_id; struct jz4780_i2c *i2c = dev_id;
unsigned long flags;
spin_lock_irqsave(&i2c->lock, flags); spin_lock(&i2c->lock);
intmsk = jz4780_i2c_readw(i2c, JZ4780_I2C_INTM); intmsk = jz4780_i2c_readw(i2c, JZ4780_I2C_INTM);
intst = jz4780_i2c_readw(i2c, JZ4780_I2C_INTST); intst = jz4780_i2c_readw(i2c, JZ4780_I2C_INTST);
@@ -551,7 +550,7 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id)
} }
done: done:
spin_unlock_irqrestore(&i2c->lock, flags); spin_unlock(&i2c->lock);
return IRQ_HANDLED; return IRQ_HANDLED;
} }