diff options
Diffstat (limited to 'drivers/net/ieee802154/cc2520.c')
| -rw-r--r-- | drivers/net/ieee802154/cc2520.c | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c index f9df9fa86d5..181b349b060 100644 --- a/drivers/net/ieee802154/cc2520.c +++ b/drivers/net/ieee802154/cc2520.c @@ -19,7 +19,6 @@ #include <linux/workqueue.h> #include <linux/interrupt.h> #include <linux/skbuff.h> -#include <linux/pinctrl/consumer.h> #include <linux/of_gpio.h> #include <linux/ieee802154.h> @@ -45,9 +44,9 @@ #define CC2520_FREG_MASK 0x3F /* status byte values */ -#define CC2520_STATUS_XOSC32M_STABLE (1 << 7) -#define CC2520_STATUS_RSSI_VALID (1 << 6) -#define CC2520_STATUS_TX_UNDERFLOW (1 << 3) +#define CC2520_STATUS_XOSC32M_STABLE BIT(7) +#define CC2520_STATUS_RSSI_VALID BIT(6) +#define CC2520_STATUS_TX_UNDERFLOW BIT(3) /* IEEE-802.15.4 defined constants (2.4 GHz logical channels) */ #define CC2520_MINCHANNEL 11 @@ -513,7 +512,6 @@ err_tx: return rc; } - static int cc2520_rx(struct cc2520_private *priv) { u8 len = 0, lqi = 0, bytes = 1; @@ -551,14 +549,14 @@ cc2520_ed(struct ieee802154_hw *hw, u8 *level) u8 rssi; int ret; - ret = cc2520_read_register(priv , CC2520_RSSISTAT, &status); + ret = cc2520_read_register(priv, CC2520_RSSISTAT, &status); if (ret) return ret; if (status != RSSI_VALID) return -EINVAL; - ret = cc2520_read_register(priv , CC2520_RSSI, &rssi); + ret = cc2520_read_register(priv, CC2520_RSSI, &rssi); if (ret) return ret; @@ -652,6 +650,7 @@ static int cc2520_register(struct cc2520_private *priv) priv->hw->parent = &priv->spi->dev; priv->hw->extra_tx_headroom = 0; priv->hw->vif_data_size = sizeof(*priv); + ieee802154_random_extended_addr(&priv->hw->phy->perm_extended_addr); /* We do support only 2.4 Ghz */ priv->hw->phy->channels_supported[0] = 0x7FFF800; @@ -842,24 +841,15 @@ done: static int cc2520_probe(struct spi_device *spi) { struct cc2520_private *priv; - struct pinctrl *pinctrl; struct cc2520_platform_data *pdata; int ret; - priv = devm_kzalloc(&spi->dev, - sizeof(struct cc2520_private), GFP_KERNEL); - if (!priv) { - ret = -ENOMEM; - goto err_ret; - } + priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; spi_set_drvdata(spi, priv); - pinctrl = devm_pinctrl_get_select_default(&spi->dev); - if (IS_ERR(pinctrl)) - dev_warn(&spi->dev, - "pinctrl pins are not configured\n"); - pdata = cc2520_get_platform_data(spi); if (!pdata) { dev_err(&spi->dev, "no platform data\n"); @@ -870,10 +860,8 @@ static int cc2520_probe(struct spi_device *spi) priv->buf = devm_kzalloc(&spi->dev, SPI_COMMAND_BUFFER, GFP_KERNEL); - if (!priv->buf) { - ret = -ENOMEM; - goto err_ret; - } + if (!priv->buf) + return -ENOMEM; mutex_init(&priv->buffer_mutex); INIT_WORK(&priv->fifop_irqwork, cc2520_fifop_irqwork); @@ -947,7 +935,6 @@ static int cc2520_probe(struct spi_device *spi) if (ret) goto err_hw_init; - gpio_set_value(pdata->vreg, HIGH); usleep_range(100, 150); @@ -991,8 +978,6 @@ static int cc2520_probe(struct spi_device *spi) err_hw_init: mutex_destroy(&priv->buffer_mutex); flush_work(&priv->fifop_irqwork); - -err_ret: return ret; } |