* ext-eero.nurkkala@xxxxxxxxx <ext-eero.nurkkala@xxxxxxxxx> [081125 13:04]:
> From: Eero Nurkkala <ext-eero.nurkkala@xxxxxxxxx>
>
> The number of bytes to be received is read from wrong
> place with all OMAPs with highspeed I2C support,
> which involves a FIFO and BUFSTAT_REG. It is the 6
> bits starting from the bit 8 in the BUFSTAT_REG
> that indicate this amount of bytes to be read.
> Moreover, only the 6 LSB:s are relevant for the
> TXSTAT field.
Pushing to l-o tree and adding to omap-fixes queue.
Tony
> Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@xxxxxxxxx>
> ---
> drivers/i2c/busses/i2c-omap.c | 10 ++++++----
> 1 files changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index 96f3bed..71b37ed 100644
> --- a/drivers/i2c/busses/i2c-omap.c
> +++ b/drivers/i2c/busses/i2c-omap.c
> @@ -675,8 +675,9 @@ omap_i2c_isr(int this_irq, void *dev_id)
> if (stat & OMAP_I2C_STAT_RRDY)
> num_bytes = dev->fifo_size;
> else
> - num_bytes = omap_i2c_read_reg(dev,
> - OMAP_I2C_BUFSTAT_REG);
> + num_bytes = (omap_i2c_read_reg(dev,
> + OMAP_I2C_BUFSTAT_REG)
> + >> 8) & 0x3F;
> }
> while (num_bytes) {
> num_bytes--;
> @@ -714,8 +715,9 @@ omap_i2c_isr(int this_irq, void *dev_id)
> if (stat & OMAP_I2C_STAT_XRDY)
> num_bytes = dev->fifo_size;
> else
> - num_bytes = omap_i2c_read_reg(dev,
> - OMAP_I2C_BUFSTAT_REG);
> + num_bytes = (omap_i2c_read_reg(dev,
> + OMAP_I2C_BUFSTAT_REG))
> + & 0x3F;
> }
> while (num_bytes) {
> num_bytes--;
> --
> 1.6.0
>
> --
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