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char: xilinx_hwicap: Fix typo in comment and extend it

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s/regsiter/register/

Use origin comment from the first driver version
which also explain the usage of XHI_MAX_RETRIES better.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Simek 2013-05-23 14:52:34 +02:00 committed by Greg Kroah-Hartman
parent 1dd24daef9
commit 84524cf43d
1 changed files with 7 additions and 1 deletions
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8
drivers/char/xilinx_hwicap/xilinx_hwicap.h
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@ -85,7 +85,13 @@ struct hwicap_driver_config {
void (*reset)(struct hwicap_drvdata *drvdata);
};
/* Number of times to poll the done regsiter */
/* Number of times to poll the done register. This has to be large
* enough to allow an entire configuration to complete. If an entire
* page (4kb) is configured at once, that could take up to 4k cycles
* with a byte-wide icap interface. In most cases, this driver is
* used with a much smaller fifo, but this should be sufficient in the
* worst case.
*/
#define XHI_MAX_RETRIES 5000
/************ Constant Definitions *************/