Hi Baruch

On 10/24/2011 4:03 PM, Baruch Siach wrote:
Hi Rajeev,

On Mon, Oct 24, 2011 at 03:28:02PM +0530, Rajeev Kumar wrote:
Since I2C designware registers are 16 bit wide and so we should use
readw/writew.

Signed-off-by: Rajeev Kumar<[email protected]>
---
  drivers/i2c/busses/i2c-designware.c |  104 +++++++++++++++++-----------------
  1 files changed, 52 insertions(+), 52 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware.c 
b/drivers/i2c/busses/i2c-designware.c
index 6eaa681..5149a10 100644
--- a/drivers/i2c/busses/i2c-designware.c
+++ b/drivers/i2c/busses/i2c-designware.c
@@ -216,11 +216,11 @@ struct dw_i2c_dev {
        u32                     abort_source;
        int                     irq;
        struct i2c_adapter      adapter;
-       unsigned int            tx_fifo_depth;
-       unsigned int            rx_fifo_depth;
+       u16                     tx_fifo_depth;
+       u16                     rx_fifo_depth;
  };

This looks wrong. The {tx,rx}_fifo_depth fields do not represent bit fields,
but numbers. So unsigned int should be better here.

Yes, I agree with you, but I do not see any possibility of value of {tx,rx}_fifo_depth fields greater than 2^^16 - 1. So, would not it be better to keep them as u16 and save just 4 bytes.

~Rajeev


baruch




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