diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-29 13:30:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-29 13:30:50 -0800 |
| commit | 346eef2fc0c6e535f2de74a551223e2e456c1f41 (patch) | |
| tree | e3543710256511f440c62c7c1fc45245269527b0 /drivers | |
| parent | 034496f40d64a4de786dfd39aa607d120c8c3cfc (diff) | |
| parent | ee4629f5b2f3dda7c83fa816068a67073abb55d9 (diff) | |
Merge tag 'spi-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver specific fixes here, the DMA burst size increase in the
spfi driver is a fix to make the hardware happier in some situations"
* tag 'spi-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: img-spfi: Increase DMA burst size
spi: img-spfi: Enable controller before starting TX DMA
spi: sh-msiof: Add runtime PM lock in initializing
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-img-spfi.c | 8 | ||||
| -rw-r--r-- | drivers/spi/spi-sh-msiof.c | 5 |
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index b410499cddca..aad6683db81b 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -341,7 +341,7 @@ static int img_spfi_start_dma(struct spi_master *master, default: rxconf.src_addr = spfi->phys + SPFI_RX_8BIT_VALID_DATA; rxconf.src_addr_width = 1; - rxconf.src_maxburst = 1; + rxconf.src_maxburst = 4; } dmaengine_slave_config(spfi->rx_ch, &rxconf); @@ -368,7 +368,7 @@ static int img_spfi_start_dma(struct spi_master *master, default: txconf.dst_addr = spfi->phys + SPFI_TX_8BIT_VALID_DATA; txconf.dst_addr_width = 1; - txconf.dst_maxburst = 1; + txconf.dst_maxburst = 4; break; } dmaengine_slave_config(spfi->tx_ch, &txconf); @@ -390,14 +390,14 @@ static int img_spfi_start_dma(struct spi_master *master, dma_async_issue_pending(spfi->rx_ch); } + spfi_start(spfi); + if (xfer->tx_buf) { spfi->tx_dma_busy = true; dmaengine_submit(txdesc); dma_async_issue_pending(spfi->tx_ch); } - spfi_start(spfi); - return 1; stop_dma: diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 239be7cbe5a8..96a5fc0878d8 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -480,6 +480,8 @@ static int sh_msiof_spi_setup(struct spi_device *spi) struct device_node *np = spi->master->dev.of_node; struct sh_msiof_spi_priv *p = spi_master_get_devdata(spi->master); + pm_runtime_get_sync(&p->pdev->dev); + if (!np) { /* * Use spi->controller_data for CS (same strategy as spi_gpio), @@ -498,6 +500,9 @@ static int sh_msiof_spi_setup(struct spi_device *spi) if (spi->cs_gpio >= 0) gpio_set_value(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH)); + + pm_runtime_put_sync(&p->pdev->dev); + return 0; } |