i2c-mxs: set controller to pio queue mode after reset
mxs_reset_block() clears the PIO_QUEUE_MODE bit. So we have to set it again after a controller reset. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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@ -118,6 +118,8 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c)
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{
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mxs_reset_block(i2c->regs);
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writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET);
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writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
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i2c->regs + MXS_I2C_QUEUECTRL_SET);
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}
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static void mxs_i2c_pioq_setup_read(struct mxs_i2c_dev *i2c, u8 addr, int len,
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@ -347,8 +349,6 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev)
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/* Do reset to enforce correct startup after pinmuxing */
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mxs_i2c_reset(i2c);
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writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
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i2c->regs + MXS_I2C_QUEUECTRL_SET);
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adap = &i2c->adapter;
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strlcpy(adap->name, "MXS I2C adapter", sizeof(adap->name));
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