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net: smsc911x: Add GPIO functions to the driver

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Add hooks to control the relevant Gpio pin from
the Ethernet driver. This allows the driver to drive the
GPIO line low or high during suspend and resume for
power management.

Change-Id: Idfcf547501198d155d314a30923fd4de440840a9
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
This commit is contained in:
Rohit Vaswani
2010-11-23 11:14:49 -08:00
committed by Stephen Boyd
parent e61d2b7e6e
commit 66e014b30f
3 changed files with 32 additions and 8 deletions
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11
include/linux/smsc911x.h
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@@ -24,7 +24,14 @@
#include <linux/phy.h>
/* platform_device configuration data, should be assigned to
* the platform_device's dev.platform_data */
* the platform_device's dev.platform_data
* Provides 2 GPIO-related fields
* reset_gpio to map the ETHERNET_RESET GPIO pin
* has_reset_gpio - to indicate if the GPIO is being set(1) or not(0)
* and remain compatible with architectures not using GPIOs
* Default would be zero if its not being assigned any value.
* Both values would need to set in the appropriate board file
*/
struct smsc911x_platform_config {
unsigned int irq_polarity;
unsigned int irq_type;
@@ -32,6 +39,8 @@ struct smsc911x_platform_config {
unsigned int shift;
phy_interface_t phy_interface;
unsigned char mac[6];
unsigned char has_reset_gpio;
unsigned int reset_gpio;
};
/* Constants for platform_device irq polarity configuration */