diff options
Diffstat (limited to 'drivers/staging/wfx/bus_spi.c')
| -rw-r--r-- | drivers/staging/wfx/bus_spi.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/staging/wfx/bus_spi.c b/drivers/staging/wfx/bus_spi.c index a99125d1a30d..55ffcd7c42e2 100644 --- a/drivers/staging/wfx/bus_spi.c +++ b/drivers/staging/wfx/bus_spi.c @@ -38,10 +38,9 @@ struct wfx_spi_priv { bool need_swab; }; -/* - * WFx chip read data 16bits at time and place them directly into (little - * endian) CPU register. So, chip expect byte order like "B1 B0 B3 B2" (while - * LE is "B0 B1 B2 B3" and BE is "B3 B2 B1 B0") +/* The chip reads 16bits of data at time and place them directly into (little + * endian) CPU register. So, the chip expects bytes order to be "B1 B0 B3 B2" + * (while LE is "B0 B1 B2 B3" and BE is "B3 B2 B1 B0") * * A little endian host with bits_per_word == 16 should do the right job * natively. The code below to support big endian host and commonly used SPI @@ -86,7 +85,7 @@ static int wfx_spi_copy_to_io(void *priv, unsigned int addr, { struct wfx_spi_priv *bus = priv; u16 regaddr = (addr << 12) | (count / 2); - // FIXME: use a bounce buffer + /* FIXME: use a bounce buffer */ u16 *src16 = (void *)src; int ret, i; struct spi_message m; @@ -104,8 +103,9 @@ static int wfx_spi_copy_to_io(void *priv, unsigned int addr, cpu_to_le16s(®addr); - // Register address and CONFIG content always use 16bit big endian - // ("BADC" order) + /* Register address and CONFIG content always use 16bit big endian + * ("BADC" order) + */ if (bus->need_swab) swab16s(®addr); if (bus->need_swab && addr == WFX_REG_CONFIG) @@ -163,7 +163,8 @@ static int wfx_spi_irq_unsubscribe(void *priv) static size_t wfx_spi_align_size(void *priv, size_t size) { - // Most of SPI controllers avoid DMA if buffer size is not 32bit aligned + /* Most of SPI controllers avoid DMA if buffer size is not 32bit aligned + */ return ALIGN(size, 4); } @@ -187,7 +188,7 @@ static int wfx_spi_probe(struct spi_device *func) ret = spi_setup(func); if (ret) return ret; - // Trace below is also displayed by spi_setup() if compiled with DEBUG + /* Trace below is also displayed by spi_setup() if compiled with DEBUG */ dev_dbg(&func->dev, "SPI params: CS=%d, mode=%d bits/word=%d speed=%d\n", func->chip_select, func->mode, func->bits_per_word, func->max_speed_hz); @@ -239,8 +240,7 @@ static int wfx_spi_remove(struct spi_device *func) return 0; } -/* - * For dynamic driver binding, kernel does not use OF to match driver. It only +/* For dynamic driver binding, kernel does not use OF to match driver. It only * use modalias and modalias is a copy of 'compatible' DT node with vendor * stripped. */ |