diff options
| author | Varka Bhadram <varkabhadram@gmail.com> | 2015-05-29 08:26:55 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-05-31 14:40:53 +0300 |
| commit | 1a1bc59c5f7657387d1a4b45d63248fed55ab88c (patch) | |
| tree | dfb5bc8302d51d7cd8aaf2f6116f50a32d799611 /drivers/net/ieee802154 | |
| parent | aad1b0b5d3e0e4cdadd695b7188873ba614ca4ef (diff) | |
| download | linux-1a1bc59c5f7657387d1a4b45d63248fed55ab88c.tar.xz | |
cc2520: fix CC2591 handling
This patch changes tha way of handling of cc2591-cc2520 combination
by moving amplified variable from platform data to private data.
This will be useful in other sections like tx power support.
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Cc: Brad Campbell <bradjc5@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/cc2520.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c index ea280d437ca1..0d9353756598 100644 --- a/drivers/net/ieee802154/cc2520.c +++ b/drivers/net/ieee802154/cc2520.c @@ -196,6 +196,7 @@ struct cc2520_private { u8 *buf; /* SPI TX/Rx data buffer */ struct mutex buffer_mutex; /* SPI buffer mutex */ bool is_tx; /* Flag for sync b/w Tx and Rx */ + bool amplified; /* Flag for CC2591 */ int fifo_pin; /* FIFO GPIO pin number */ struct work_struct fifop_irqwork;/* Workqueue for FIFOP */ spinlock_t lock; /* Lock for is_tx*/ @@ -738,7 +739,9 @@ static int cc2520_get_platform_data(struct spi_device *spi, pdata->vreg = of_get_named_gpio(np, "vreg-gpio", 0); pdata->reset = of_get_named_gpio(np, "reset-gpio", 0); - pdata->amplified = of_property_read_bool(np, "amplified"); + /* CC2591 front end for CC2520 */ + if (of_property_read_bool(np, "amplified")) + priv->amplified = true; return 0; } @@ -781,7 +784,7 @@ static int cc2520_hw_init(struct cc2520_private *priv) * amplifier. See section 8 page 17 of TI application note AN065. * http://www.ti.com/lit/an/swra229a/swra229a.pdf */ - if (pdata.amplified) { + if (priv->amplified) { ret = cc2520_write_register(priv, CC2520_AGCCTRL1, 0x16); if (ret) goto err_ret; @@ -896,6 +899,9 @@ static int cc2520_probe(struct spi_device *spi) spin_lock_init(&priv->lock); init_completion(&priv->tx_complete); + /* Assumption that CC2591 is not connected */ + priv->amplified = false; + /* Request all the gpio's */ if (!gpio_is_valid(pdata.fifo)) { dev_err(&spi->dev, "fifo gpio is not valid\n"); |