| From d412e999fddebea19b40024ae935489fb0ed870b Mon Sep 17 00:00:00 2001 |
| From: Michal Simek <monstr@monstr.eu> |
| Date: Thu, 23 May 2013 14:52:34 +0200 |
| Subject: char: xilinx_hwicap: Fix typo in comment and extend it |
| |
| 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> |
| (cherry picked from commit 84524cf43d693746896782628466205ccc193e0d) |
| Signed-off-by: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp> |
| Signed-off-by: Yoshitake Kobayashi <yoshitake.kobayashi@toshiba.co.jp> |
| --- |
| drivers/char/xilinx_hwicap/xilinx_hwicap.h | 8 +++++++- |
| 1 file changed, 7 insertions(+), 1 deletion(-) |
| |
| diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h |
| index 96677fc7ea4d..38b145eaf24d 100644 |
| --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h |
| +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h |
| @@ -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 *************/ |
| -- |
| 1.8.5.rc3 |
| |
