Commit 04c688dd authored Jul 21, 2009 by Sonasath, Moiz Committed by Ben Dooks Jul 30, 2009

i2c-omap: In case of a NACK|ARDY|AL return from the ISR

In case of a NACK or ARDY or AL interrupt, complete the request.
There is no need to service the RRDY/RDR or XRDY/XDR interrupts.

Refer TRM SWPU114: Figure 18-31.I2C Master Transmitter Mode, Interrupt Method,
in F/S and HS Modes

http://focus.ti.com/pdfs/wtbu/SWPU114T_PrelimFinalEPDF_06_25_2009.pdf



Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Vikram pandita <vikram.pandita@ti.com>
[ben-linux@fluff.org: fixed mail format and added i2c-omap to subject]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

parent bfb6b658

drivers/i2c/busses/i2c-omap.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -685,8 +685,10 @@ omap_i2c_isr(int this_irq, void *dev_id)
		err \|= OMAP_I2C_STAT_AL;
		}
		if (stat & (OMAP_I2C_STAT_ARDY \| OMAP_I2C_STAT_NACK \|
		OMAP_I2C_STAT_AL))
		OMAP_I2C_STAT_AL)) {
		omap_i2c_complete_cmd(dev, err);
		return IRQ_HANDLED;
		}
		if (stat & (OMAP_I2C_STAT_RRDY \| OMAP_I2C_STAT_RDR)) {
		u8 num_bytes = 1;
		if (dev->fifo_size) {