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Commit 1d5a34fe authored by Shubhrajyoti D's avatar Shubhrajyoti D Committed by Ben Dooks
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I2C: OMAP: fix FIFO usage for OMAP4 



Currently the fifo depth is set to zero for OMAP4 which disables
the FIFO usage. This patch enables the FIFO usage for I2C transactions
on OMAP4 also.

Tested on omap4430 and 3430.

Tested-and-Reported-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarShubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 8ebe661d

drivers/i2c/busses/i2c-omap.c

+6 −5
Original line number Diff line number Diff line
@@ -1047,13 +1047,14 @@ omap_i2c_probe(struct platform_device *pdev) 
		 * size. This is to ensure that we can handle the status on int

		 * call back latencies.

		 */

		if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) {

			dev->fifo_size = 0;

			dev->b_hw = 0; /* Disable hardware fixes */

		} else {



		dev->fifo_size = (dev->fifo_size / 2);



		if (dev->rev >= OMAP_I2C_REV_ON_3530_4430)

			dev->b_hw = 0; /* Disable hardware fixes */

		else

			dev->b_hw = 1; /* Enable hardware fixes */

		}



		/* calculate wakeup latency constraint for MPU */

		if (dev->set_mpu_wkup_lat != NULL)

			dev->latency = (1000000 * dev->fifo_size) /