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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-28 04:38:34 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-28 04:38:34 (GMT) |
commit | 37aa48368f2508defb1976be62e1ed6ca4dde683 (patch) | |
tree | 59b606c740ddd10259fbf2248bb50498a319fa6d /drivers/spi | |
parent | 1da4f83c0c43f25baf356c4cc719255877da6b1e (diff) | |
parent | d1db0eea852497762cab43b905b879dfcd3b8987 (diff) | |
download | linux-37aa48368f2508defb1976be62e1ed6ca4dde683.tar.xz |
Merge 3.15-rc3 into staging-next
Diffstat (limited to 'drivers/spi')
-rw-r--r-- | drivers/spi/spi-atmel.c | 3 | ||||
-rw-r--r-- | drivers/spi/spi-bfin5xx.c | 1 | ||||
-rw-r--r-- | drivers/spi/spi-sh-hspi.c | 4 | ||||
-rw-r--r-- | drivers/spi/spi-sirf.c | 20 |
4 files changed, 23 insertions, 5 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 8005f98..079e6b1 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -1115,8 +1115,11 @@ static int atmel_spi_one_transfer(struct spi_master *master, atmel_spi_next_xfer_pio(master, xfer); } + /* interrupts are disabled, so free the lock for schedule */ + atmel_spi_unlock(as); ret = wait_for_completion_timeout(&as->xfer_completion, SPI_DMA_TIMEOUT); + atmel_spi_lock(as); if (WARN_ON(ret == 0)) { dev_err(&spi->dev, "spi trasfer timeout, err %d\n", ret); diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index 55e57c3..ebf720b 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/delay.h> #include <linux/device.h> +#include <linux/gpio.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/ioport.h> diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c index 9009456..c8e795e 100644 --- a/drivers/spi/spi-sh-hspi.c +++ b/drivers/spi/spi-sh-hspi.c @@ -244,9 +244,9 @@ static int hspi_probe(struct platform_device *pdev) return -ENOMEM; } - clk = clk_get(NULL, "shyway_clk"); + clk = clk_get(&pdev->dev, NULL); if (IS_ERR(clk)) { - dev_err(&pdev->dev, "shyway_clk is required\n"); + dev_err(&pdev->dev, "couldn't get clock\n"); ret = -EINVAL; goto error0; } diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index 1a77ad5..67d8909 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -287,8 +287,8 @@ static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) sspi->left_rx_word) sspi->rx_word(sspi); - if (spi_stat & (SIRFSOC_SPI_FIFO_EMPTY - | SIRFSOC_SPI_TXFIFO_THD_REACH)) + if (spi_stat & (SIRFSOC_SPI_TXFIFO_EMPTY | + SIRFSOC_SPI_TXFIFO_THD_REACH)) while (!((readl(sspi->base + SIRFSOC_SPI_TXFIFO_STATUS) & SIRFSOC_SPI_FIFO_FULL)) && sspi->left_tx_word) @@ -470,7 +470,16 @@ static void spi_sirfsoc_chipselect(struct spi_device *spi, int value) writel(regval, sspi->base + SIRFSOC_SPI_CTRL); } else { int gpio = sspi->chipselect[spi->chip_select]; - gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1); + switch (value) { + case BITBANG_CS_ACTIVE: + gpio_direction_output(gpio, + spi->mode & SPI_CS_HIGH ? 1 : 0); + break; + case BITBANG_CS_INACTIVE: + gpio_direction_output(gpio, + spi->mode & SPI_CS_HIGH ? 0 : 1); + break; + } } } @@ -559,6 +568,11 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) regval &= ~SIRFSOC_SPI_CMD_MODE; sspi->tx_by_cmd = false; } + /* + * set spi controller in RISC chipselect mode, we are controlling CS by + * software BITBANG_CS_ACTIVE and BITBANG_CS_INACTIVE. + */ + regval |= SIRFSOC_SPI_CS_IO_MODE; writel(regval, sspi->base + SIRFSOC_SPI_CTRL); if (IS_DMA_VALID(t)) { |