[RFC,v1,08/12] p54spi: use sysdata_file_request() for EEPROM optional system data

Commit Message

Luis R. Rodriguez May 6, 2015, 12:44 a.m. UTC

From: "Luis R. Rodriguez" <[e-mail]>

This converts the driver over from request_firmware_direct() to
the sysdata_file_request().

Signed-off-by: Luis R. Rodriguez <[e-mail]>
---
 drivers/net/wireless/p54/p54spi.c | 49 +++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 20 deletions(-)

Patch

diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 63de5ee..0950ed6 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -24,6 +24,7 @@ 
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/firmware.h>
+#include <linux/sysdata.h>
 #include <linux/delay.h>
 #include <linux/irq.h>
 #include <linux/spi/spi.h>
@@ -184,33 +185,41 @@  static int p54spi_request_firmware(struct ieee80211_hw *dev)
 	return 0;
 }
 
-static int p54spi_request_eeprom(struct ieee80211_hw *dev)
+static int p54spi_load_new_eeprom(void *context,
+				  const struct sysdata_file *sysdata)
 {
-	struct p54s_priv *priv = dev->priv;
-	const struct firmware *eeprom;
+	struct ieee80211_hw *dev = context;
 	int ret;
 
-	/* allow users to customize their eeprom.
-	 */
+	ret = p54_parse_eeprom(dev, (void *) sysdata->data,
+			       sysdata->size);
+	release_sysdata_file(sysdata);
 
-	ret = request_firmware_direct(&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));
-#else
-		dev_err(&priv->spi->dev, "Failed to request user eeprom\n");
-#endif /* CONFIG_P54_SPI_DEFAULT_EEPROM */
-	} else {
-		dev_info(&priv->spi->dev, "loading user eeprom...\n");
-		ret = p54_parse_eeprom(dev, (void *) eeprom->data,
-				       (int)eeprom->size);
-		release_firmware(eeprom);
-	}
 	return ret;
 }
 
+static int p54spi_load_default_eeprom(void *context)
+{
+	struct ieee80211_hw *dev = context;
+
+	return p54_parse_eeprom(dev, (void *) p54spi_eeprom,
+				sizeof(p54spi_eeprom));
+}
+
+static int p54spi_request_eeprom(struct ieee80211_hw *dev)
+{
+	struct p54s_priv *priv = dev->priv;
+	const struct sysdata_file_desc p54_spi_eeprom_sysdata = {
+		SYSDATA_DEFAULT_SYNC(p54spi_load_new_eeprom, dev),
+		.optional = !IS_ENABLED(CONFIG_P54_SPI_DEFAULT_EEPROM),
+		SYSDATA_SYNC_OPT_CB(p54spi_load_default_eeprom, dev),
+	};
+
+	return sysdata_file_request("3826.eeprom",
+				    &p54_spi_eeprom_sysdata,
+				    &priv->spi->dev);
+}
+
 static int p54spi_upload_firmware(struct ieee80211_hw *dev)
 {
 	struct p54s_priv *priv = dev->priv;