Hello.
On 11/23/2014 1:52 AM, Petr Cvek wrote:
Add support for SCCB devices into PXA27x I2C controller.
Fix generated START but no STOP for message without I2C_M_NOSTART flag. Add
support for I2C_M_IGNORE_NAK flag.
Signed-off-by: Petr Cvek <petr.cvek@xxxxxx>
---
drivers/i2c/busses/i2c-pxa.c | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index be671f7..adad044 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -885,7 +885,14 @@ static void i2c_pxa_irq_txempty(struct pxa_i2c *i2c, u32
isr)
return; /* ignore */
}
- if (isr & ISR_BED) {
+ /*
Your patch has tabs replaces by spaces; probably your email agent's work. :-)
+ * Ignore NAK when flag I2C_M_IGNORE_NAK is present,
+ * this enables use of SCCB devices
+ */
+ if ((isr & ISR_BED) &&
+ (!((i2c->msg->flags & I2C_M_IGNORE_NAK) &&
+ (isr & ISR_ACKNAK)))) {
+
This empty line is not needed.
[...]
WBR, Sergei
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