diff options
| author | Ryder Lee <ryder.lee@mediatek.com> | 2021-04-14 19:45:49 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-04-21 12:42:22 +0300 |
| commit | 495184ac91bb866ad7d794ad6ceb064e191319d4 (patch) | |
| tree | 37c28655155e7b8360d314c05665cdea992b634b /drivers/net/wireless/mediatek/mt76/eeprom.c | |
| parent | 4efcfd5c36bd0d7c0f62713216a2291562eccfaa (diff) | |
| download | linux-495184ac91bb866ad7d794ad6ceb064e191319d4.tar.xz | |
mt76: mt7915: add support for applying pre-calibration data
When the EEPROM data is read from flash, it can contain pre-calibration
data, which can save calibration time.
Note that group_cal can save 30% bootup calibration time, and dpd_cal can
save 75% channel switching time.
Tested-by: Bo Jiao <bo.jiao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/eeprom.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c index 6f75e949e4fd..3b47e85e95e7 100644 --- a/drivers/net/wireless/mediatek/mt76/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c @@ -9,8 +9,7 @@ #include <linux/etherdevice.h> #include "mt76.h" -static int -mt76_get_of_eeprom(struct mt76_dev *dev, int len) +int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len) { #if defined(CONFIG_OF) && defined(CONFIG_MTD) struct device_node *np = dev->dev->of_node; @@ -18,7 +17,6 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) const __be32 *list; const char *part; phandle phandle; - int offset = 0; int size; size_t retlen; int ret; @@ -54,7 +52,7 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) } offset = be32_to_cpup(list); - ret = mtd_read(mtd, offset, len, &retlen, dev->eeprom.data); + ret = mtd_read(mtd, offset, len, &retlen, eep); put_mtd_device(mtd); if (ret) goto out_put_node; @@ -65,7 +63,7 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) } if (of_property_read_bool(dev->dev->of_node, "big-endian")) { - u8 *data = (u8 *)dev->eeprom.data; + u8 *data = (u8 *)eep; int i; /* convert eeprom data in Little Endian */ @@ -86,6 +84,7 @@ out_put_node: return -ENOENT; #endif } +EXPORT_SYMBOL_GPL(mt76_get_of_eeprom); void mt76_eeprom_override(struct mt76_phy *phy) @@ -332,6 +331,6 @@ mt76_eeprom_init(struct mt76_dev *dev, int len) if (!dev->eeprom.data) return -ENOMEM; - return !mt76_get_of_eeprom(dev, len); + return !mt76_get_of_eeprom(dev, dev->eeprom.data, 0, len); } EXPORT_SYMBOL_GPL(mt76_eeprom_init); |