[U-Boot] [PATCH 2/3] i2c: tegra: write clean data to TX FIFO

[Yen Lin]

Hi Stephen,

> Subject: [U-Boot] [PATCH 2/3] i2c: tegra: write clean data to TX FIFO
> 
> From: Stephen Warren <swarren at nvidia.com>
> 
> The Tegra I2C controller's TX FIFO contains 32-bit words. If the final FIFO
> entry of a transaction contains fewer than 4 bytes, the driver currently fills
> the unused FIFO bytes with uninitialized data. This can be confusing when
> reading back the FIFO content for debugging purposes.
> 
> Solve this by explicitly initializing the variable containing FIFO data before
> filling it (partially) with data. With this change, send_recv_packets()'s loop's if
> (is_write) code mirrors the else (i.e.
> read) branch.
> 
> Signed-off-by: Stephen Warren <swarren at nvidia.com>

LGME.

Reviewed-by: Yen Lin <yelin at nvidia.com>

Regards,
Yen Lin

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