[NET] smc91x: add SMC91X_NOWAIT flag to platform data

And also favors the usage of SMC91X_NOWAIT over the hardcoded SMC_NOWAIT
by converting "nowait" (module parameter overridable) to platform flag.

There are several possibilities:

  1. platform data present - preferred and use as is
  2. platform data absent  - use "nowait", it can be:
       a. SMC_NOWAIT if defined
       b. default to 0 if SMC_NOWAIT isn't defined
       c. overriden by module parameter

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 1b19022b6c7c..de7a913c487c 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -308,7 +308,7 @@ static void smc_reset(struct net_device *dev)
          * can't handle it then there will be no recovery except for
          * a hard reset or power cycle
          */
-        if (nowait)
+        if (lp->cfg.flags & SMC91X_NOWAIT)
                 cfg |= CONFIG_NO_WAIT;
 
         /*
@@ -2160,6 +2160,7 @@ static int smc_drv_probe(struct platform_device *pdev)
                 lp->cfg.flags |= (SMC_CAN_USE_8BIT)  ? SMC91X_USE_8BIT  : 0;
                 lp->cfg.flags |= (SMC_CAN_USE_16BIT) ? SMC91X_USE_16BIT : 0;
                 lp->cfg.flags |= (SMC_CAN_USE_32BIT) ? SMC91X_USE_32BIT : 0;
+                lp->cfg.flags |= (nowait) ? SMC91X_NOWAIT : 0;
         }
 
         ndev->dma = (unsigned char)-1;
diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h
index fc7682f04d89..90434db72db2 100644
--- a/include/linux/smc91x.h
+++ b/include/linux/smc91x.h
@@ -5,6 +5,8 @@
 #define SMC91X_USE_16BIT (1 << 1)
 #define SMC91X_USE_32BIT (1 << 2)
 
+#define SMC91X_NOWAIT           (1 << 3)
+
 struct smc91x_platdata {
         unsigned long flags;
 };