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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-05 22:07:25 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-05 22:07:25 +0300 |
| commit | d445d46d7b882d80e7c0d300e1ef5430c44456e2 (patch) | |
| tree | cfd88692bd1085005eed9dd115af13a5a82e0dec | |
| parent | e7394c776f22a8893e157842fe2ded100280a3a1 (diff) | |
| parent | d426a842b0c203c182ec2658efc4282ef1eb80be (diff) | |
| download | linux-d445d46d7b882d80e7c0d300e1ef5430c44456e2.tar.xz | |
Merge tag 'spi-v3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A couple of driver specific fixes:
- Disable DMA mode for i.MX6DL chips due to a hardware bug.
- Don't use devm_kzalloc() outside of bind/unbind paths in the
fsl-dspi driver, fixing memory leaks"
* tag 'spi-v3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: imx: use pio mode for i.mx6dl
spi: spi-fsl-dspi: Remove usage of devm_kzalloc
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 14 | ||||
| -rw-r--r-- | drivers/spi/spi-imx.c | 4 |
2 files changed, 16 insertions, 2 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 4cda994d3f40..9b80d54d4ddb 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -342,8 +342,7 @@ static int dspi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) /* Only alloc on first setup */ chip = spi_get_ctldata(spi); if (chip == NULL) { - chip = devm_kzalloc(&spi->dev, sizeof(struct chip_data), - GFP_KERNEL); + chip = kzalloc(sizeof(struct chip_data), GFP_KERNEL); if (!chip) return -ENOMEM; } @@ -382,6 +381,16 @@ static int dspi_setup(struct spi_device *spi) return dspi_setup_transfer(spi, NULL); } +static void dspi_cleanup(struct spi_device *spi) +{ + struct chip_data *chip = spi_get_ctldata((struct spi_device *)spi); + + dev_dbg(&spi->dev, "spi_device %u.%u cleanup\n", + spi->master->bus_num, spi->chip_select); + + kfree(chip); +} + static irqreturn_t dspi_interrupt(int irq, void *dev_id) { struct fsl_dspi *dspi = (struct fsl_dspi *)dev_id; @@ -467,6 +476,7 @@ static int dspi_probe(struct platform_device *pdev) dspi->bitbang.master->setup = dspi_setup; dspi->bitbang.master->dev.of_node = pdev->dev.of_node; + master->cleanup = dspi_cleanup; master->mode_bits = SPI_CPOL | SPI_CPHA; master->bits_per_word_mask = SPI_BPW_MASK(4) | SPI_BPW_MASK(8) | SPI_BPW_MASK(16); diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 961b97d43b43..fe1b7699fab6 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -823,6 +823,10 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, struct dma_slave_config slave_config = {}; int ret; + /* use pio mode for i.mx6dl chip TKT238285 */ + if (of_machine_is_compatible("fsl,imx6dl")) + return 0; + /* Prepare for TX DMA: */ master->dma_tx = dma_request_slave_channel(dev, "tx"); if (!master->dma_tx) { |