diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/spi/spi-bcm63xx-hsspi.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/spi/spi-bcm63xx-hsspi.c')
| -rw-r--r-- | kernel/drivers/spi/spi-bcm63xx-hsspi.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/drivers/spi/spi-bcm63xx-hsspi.c b/kernel/drivers/spi/spi-bcm63xx-hsspi.c index f5ca6dc3a..55789f7cd 100644 --- a/kernel/drivers/spi/spi-bcm63xx-hsspi.c +++ b/kernel/drivers/spi/spi-bcm63xx-hsspi.c @@ -76,6 +76,7 @@ #define HSSPI_FIFO_REG(x) (0x200 + (x) * 0x200) +#define HSSPI_OP_MULTIBIT BIT(11) #define HSSPI_OP_CODE_SHIFT 13 #define HSSPI_OP_SLEEP (0 << HSSPI_OP_CODE_SHIFT) #define HSSPI_OP_READ_WRITE (1 << HSSPI_OP_CODE_SHIFT) @@ -171,9 +172,12 @@ static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t) if (opcode != HSSPI_OP_READ) step_size -= HSSPI_OPCODE_LEN; - __raw_writel(0 << MODE_CTRL_PREPENDBYTE_CNT_SHIFT | - 2 << MODE_CTRL_MULTIDATA_WR_STRT_SHIFT | - 2 << MODE_CTRL_MULTIDATA_RD_STRT_SHIFT | 0xff, + if ((opcode == HSSPI_OP_READ && t->rx_nbits == SPI_NBITS_DUAL) || + (opcode == HSSPI_OP_WRITE && t->tx_nbits == SPI_NBITS_DUAL)) + opcode |= HSSPI_OP_MULTIBIT; + + __raw_writel(1 << MODE_CTRL_MULTIDATA_WR_SIZE_SHIFT | + 1 << MODE_CTRL_MULTIDATA_RD_SIZE_SHIFT | 0xff, bs->regs + HSSPI_PROFILE_MODE_CTRL_REG(chip_select)); while (pending > 0) { @@ -374,7 +378,8 @@ static int bcm63xx_hsspi_probe(struct platform_device *pdev) master->num_chipselect = 8; master->setup = bcm63xx_hsspi_setup; master->transfer_one_message = bcm63xx_hsspi_transfer_one; - master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | + SPI_RX_DUAL | SPI_TX_DUAL; master->bits_per_word_mask = SPI_BPW_MASK(8); master->auto_runtime_pm = true; |