From: Sascha Hauer <[email protected]> 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 <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Cc: Ben Dooks <[email protected]> --- drivers/i2c/busses/i2c-mxs.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 8022e23..caf96dc 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -118,6 +118,8 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c) { mxs_reset_block(i2c->regs); 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, @@ -347,8 +349,6 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev) /* Do reset to enforce correct startup after pinmuxing */ mxs_i2c_reset(i2c); - writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE, - i2c->regs + MXS_I2C_QUEUECTRL_SET); adap = &i2c->adapter; strlcpy(adap->name, "MXS I2C adapter", sizeof(adap->name)); -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
