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i2c: rk3x: fix to dev_warn_ratelimited

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In some case, the log will look bad such as:
[   12.393926] rk3x-i2c ff150000.i2c: irq in STATE_IDLE, ipd = 0x51
[[[[[[[[[[[[.[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

Let's limit the printk:
[  180.446547] rk3x_i2c_irq: 1726030 callbacks suppressed
[  180.446592] rk3x-i2c ff150000.i2c: irq in STATE_IDLE, ipd = 0x51

Change-Id: Ie91163ad3085e5dba127790b50e3beb359510120
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
This commit is contained in:
Jianqun Xu
2017-05-18 09:12:32 +08:00
committed by Tao Huang
parent 70d9feffcd
commit e818f13f6c
1 changed files with 3 additions and 1 deletions
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4
drivers/i2c/busses/i2c-rk3x.c
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@@ -483,7 +483,9 @@ static irqreturn_t rk3x_i2c_irq(int irqno, void *dev_id)
ipd = i2c_readl(i2c, REG_IPD);
if (i2c->state == STATE_IDLE) {
dev_warn(i2c->dev, "irq in STATE_IDLE, ipd = 0x%x\n", ipd);
dev_warn_ratelimited(i2c->dev,
"irq in STATE_IDLE, ipd = 0x%x\n",
ipd);
rk3x_i2c_clean_ipd(i2c);
goto out;
}