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authorChristian Lamparter <chunkeey@googlemail.com>2010-08-22 02:00:14 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-08-25 22:33:18 +0400
commitd7065c305544d575c3697b46ddbc8601de03e46f (patch)
tree045878b92a08e7c69b0dcaa281dce07581987e78 /drivers/net/wireless/p54
parentb4c52612069c2756ad7506754765bfee57315efe (diff)
downloadlinux-d7065c305544d575c3697b46ddbc8601de03e46f.tar.xz
p54spi: Kconfig option for config blob
This patch adds an Kconfig option, which allows the user to select, whenever he/she wants to include a 4k blob for generic calibration and interface values into the driver, or cut the module size by about 15 to 20%. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/p54')
-rw-r--r--drivers/net/wireless/p54/Kconfig17
-rw-r--r--drivers/net/wireless/p54/p54spi.c7
2 files changed, 23 insertions, 1 deletions
diff --git a/drivers/net/wireless/p54/Kconfig b/drivers/net/wireless/p54/Kconfig
index 60a930e45a8b..e5f45cb2a7a2 100644
--- a/drivers/net/wireless/p54/Kconfig
+++ b/drivers/net/wireless/p54/Kconfig
@@ -49,6 +49,23 @@ config P54_SPI
If you choose to build a module, it'll be called p54spi.
+config P54_SPI_DEFAULT_EEPROM
+ bool "Include fallback EEPROM blob"
+ depends on P54_SPI
+ default n
+ ---help---
+ Unlike the PCI or USB devices, the SPI variants don't have
+ a dedicated EEPROM chip to store all device specific values
+ for calibration, country and interface settings.
+
+ The driver will try to load the image "3826.eeprom", if the
+ file is put at the right place. (usually /lib/firmware.)
+
+ Only if this request fails, this option will provide a
+ backup set of generic values to get the device working.
+
+ Enabling this option adds about 4k to p54spi.
+
config P54_LEDS
bool
depends on P54_COMMON && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = P54_COMMON)
diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 087bf0698a5a..156e57dbd2cf 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -32,11 +32,14 @@
#include <linux/slab.h>
#include "p54spi.h"
-#include "p54spi_eeprom.h"
#include "p54.h"
#include "lmac.h"
+#ifdef CONFIG_P54_SPI_DEFAULT_EEPROM
+#include "p54spi_eeprom.h"
+#endif /* CONFIG_P54_SPI_DEFAULT_EEPROM */
+
MODULE_FIRMWARE("3826.arm");
MODULE_ALIAS("stlc45xx");
@@ -195,9 +198,11 @@ static int p54spi_request_eeprom(struct ieee80211_hw *dev)
ret = request_firmware(&eeprom, "3826.eeprom", &priv->spi->dev);
if (ret < 0) {
+#ifdef CONFIG_P54_SPI_DEFAULT_EEPROM
dev_info(&priv->spi->dev, "loading default eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) p54spi_eeprom,
sizeof(p54spi_eeprom));
+#endif /* CONFIG_P54_SPI_DEFAULT_EEPROM */
} else {
dev_info(&priv->spi->dev, "loading user eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) eeprom->data,