提交 6b7d815c 编写于 作者: S Sascha Hauer 提交者: Ben Dooks

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: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
上级 a8da7fec
...@@ -118,6 +118,8 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c) ...@@ -118,6 +118,8 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c)
{ {
mxs_reset_block(i2c->regs); mxs_reset_block(i2c->regs);
writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET); writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET);
writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
i2c->regs + MXS_I2C_QUEUECTRL_SET);
} }
static void mxs_i2c_pioq_setup_read(struct mxs_i2c_dev *i2c, u8 addr, int len, static void mxs_i2c_pioq_setup_read(struct mxs_i2c_dev *i2c, u8 addr, int len,
...@@ -347,8 +349,6 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev) ...@@ -347,8 +349,6 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev)
/* Do reset to enforce correct startup after pinmuxing */ /* Do reset to enforce correct startup after pinmuxing */
mxs_i2c_reset(i2c); mxs_i2c_reset(i2c);
writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE,
i2c->regs + MXS_I2C_QUEUECTRL_SET);
adap = &i2c->adapter; adap = &i2c->adapter;
strlcpy(adap->name, "MXS I2C adapter", sizeof(adap->name)); strlcpy(adap->name, "MXS I2C adapter", sizeof(adap->name));
......
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