Messages in this thread | | | Date | Tue, 9 Apr 2013 11:09:14 +0200 | From | Wolfram Sang <> | Subject | Re: [5/7] i2c-designware: enable/disable the controller properly |
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> +static void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable) > +{ > + int timeout = 100; > + > + do { > + dw_writel(dev, enable, DW_IC_ENABLE); > + if ((dw_readl(dev, DW_IC_ENABLE_STATUS) & 1) == enable) > + return; > + > + usleep_range(25, 250);
This would wait 25ms max. Is there a timeout value specified in the docs?
> + } while (timeout-- > 0);
while (timeout--)?
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