* Tony Lindgren <tony@xxxxxxxxxxx> [090220 10:53]:
> Hi Ben,
>
> Here's a fix for i2c-omap fix from Eero Nurkkala that would be nice
> to get queued up for mainline.
Resent, I still had the old i2c list in my aliases..
> Regards,
>
> Tony
> From b3849f3074fe50f176e2e4d89be56854f7b02d3b Mon Sep 17 00:00:00 2001
> From: Eero Nurkkala <ext-eero.nurkkala@xxxxxxxxx>
> Date: Fri, 20 Feb 2009 10:46:17 -0800
> Subject: [PATCH] i2c: i2c-omap: Fix BUFSTAT_REG reading
>
> 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.
>
> Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@xxxxxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
>
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index be8ee2c..0c3ed41 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--;
--
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