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spi: Fixes for v4.5

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A small clutch of driver specific fixes.  The OMAP one is a bit worrying
 since it seems to be triggered by some changes in the runtime PM core
 code and I suspect there's other drivers across that are going to be
 using the same pattern outside of OMAP but nothing seems to be coming up
 in the testing people are doing.
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Merge tag 'spi-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A small clutch of driver specific fixes.

  The OMAP one is a bit worrying since it seems to be triggered by some
  changes in the runtime PM core code and I suspect there's other
  drivers across that are going to be using the same pattern outside of
  OMAP but nothing seems to be coming up in the testing people are
  doing"

* tag 'spi-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: omap2-mcspi: Fix PM regression with deferred probe for pm_runtime_reinit
  spi: bcm2835aux: fix bitmask defines
  spi: atmel: fix gpio chip-select in case of non-DT platform
  spi/fsl-espi: Correct the maximum transaction length
  spi: imx: fix spi resource leak with dma transfer
  spi: fix counting in spi-loopback-test code
This commit is contained in:
Linus Torvalds 2016-02-16 07:15:20 -08:00
commit e5310a1cb4
6 changed files with 14 additions and 7 deletions
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1
drivers/spi/spi-atmel.c
View File

@ -1571,6 +1571,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
as->use_cs_gpios = true;
if (atmel_spi_is_v2(as) &&
pdev->dev.of_node &&
!of_get_property(pdev->dev.of_node, "cs-gpios", NULL)) {
as->use_cs_gpios = false;
master->num_chipselect = 4;

4
drivers/spi/spi-bcm2835aux.c
View File

@ -73,8 +73,8 @@
/* Bitfields in CNTL1 */
#define BCM2835_AUX_SPI_CNTL1_CSHIGH 0x00000700
#define BCM2835_AUX_SPI_CNTL1_IDLE 0x00000080
#define BCM2835_AUX_SPI_CNTL1_TXEMPTY 0x00000040
#define BCM2835_AUX_SPI_CNTL1_TXEMPTY 0x00000080
#define BCM2835_AUX_SPI_CNTL1_IDLE 0x00000040
#define BCM2835_AUX_SPI_CNTL1_MSBF_IN 0x00000002
#define BCM2835_AUX_SPI_CNTL1_KEEP_IN 0x00000001

4
drivers/spi/spi-fsl-espi.c
View File

@ -84,7 +84,7 @@ struct fsl_espi_transfer {
/* SPCOM register values */
#define SPCOM_CS(x) ((x) << 30)
#define SPCOM_TRANLEN(x) ((x) << 0)
#define SPCOM_TRANLEN_MAX 0xFFFF /* Max transaction length */
#define SPCOM_TRANLEN_MAX 0x10000 /* Max transaction length */
#define AUTOSUSPEND_TIMEOUT 2000
@ -233,7 +233,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
reinit_completion(&mpc8xxx_spi->done);
/* Set SPCOM[CS] and SPCOM[TRANLEN] field */
if ((t->len - 1) > SPCOM_TRANLEN_MAX) {
if (t->len > SPCOM_TRANLEN_MAX) {
dev_err(mpc8xxx_spi->dev, "Transaction length (%d)"
" beyond the SPCOM[TRANLEN] field\n", t->len);
return -EINVAL;

8
drivers/spi/spi-imx.c
View File

@ -929,7 +929,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
tx->sgl, tx->nents, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_tx)
goto no_dma;
goto tx_nodma;
desc_tx->callback = spi_imx_dma_tx_callback;
desc_tx->callback_param = (void *)spi_imx;
@ -941,7 +941,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
rx->sgl, rx->nents, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_rx)
goto no_dma;
goto rx_nodma;
desc_rx->callback = spi_imx_dma_rx_callback;
desc_rx->callback_param = (void *)spi_imx;
@ -1008,7 +1008,9 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
return ret;
no_dma:
rx_nodma:
dmaengine_terminate_all(master->dma_tx);
tx_nodma:
pr_warn_once("%s %s: DMA not available, falling back to PIO\n",
dev_driver_string(&master->dev),
dev_name(&master->dev));

1
drivers/spi/spi-loopback-test.c
View File

@ -761,6 +761,7 @@ static int spi_test_run_iter(struct spi_device *spi,
test.iterate_transfer_mask = 1;
/* count number of transfers with tx/rx_buf != NULL */
rx_count = tx_count = 0;
for (i = 0; i < test.transfer_count; i++) {
if (test.transfers[i].tx_buf)
tx_count++;

3
drivers/spi/spi-omap2-mcspi.c
View File

@ -1490,6 +1490,8 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
return status;
disable_pm:
pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
free_master:
spi_master_put(master);
@ -1501,6 +1503,7 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
struct spi_master *master = platform_get_drvdata(pdev);
struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
pm_runtime_dont_use_autosuspend(mcspi->dev);
pm_runtime_put_sync(mcspi->dev);
pm_runtime_disable(&pdev->dev);