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| author | Takashi Iwai <tiwai@suse.de> | 2020-03-30 14:43:00 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-03-30 14:43:00 +0300 |
| commit | 3c22baeab40b2f8e75907cfd7aa69147d5343d2c (patch) | |
| tree | e8300e52242ae3a9c7bfe6089ee7125324095e27 /drivers/spi/atmel-quadspi.c | |
| parent | aa21c3d4b941739651e77747d2f7a20a6c1d87bc (diff) | |
| parent | 1c521d7e62262793789845989edca57dea24eb7d (diff) | |
| download | linux-3c22baeab40b2f8e75907cfd7aa69147d5343d2c.tar.xz | |
Merge tag 'asoc-v5.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.7
This is a very big update for the core since Morimoto-san has been
rather busy continuing his refactorings to clean up a lot of the cruft
that we have accumilated over the years. We've also gained several new
drivers, including initial (but still not complete) parts of the Intel
SoundWire support.
- Lots of refactorings to modernize the code from Morimoto-san.
- Conversion of SND_SOC_ALL_CODECS to use imply from Geert Uytterhoeven.
- Continued refactoring and fixing of the Intel support.
- Soundwire and more advanced clocking support for Realtek RT5682.
- Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom
DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563 and
TLV320ADCX140.
Diffstat (limited to 'drivers/spi/atmel-quadspi.c')
| -rw-r--r-- | drivers/spi/atmel-quadspi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c index fd8007ebb145..13def7f78b9e 100644 --- a/drivers/spi/atmel-quadspi.c +++ b/drivers/spi/atmel-quadspi.c @@ -149,6 +149,7 @@ struct atmel_qspi { struct clk *qspick; struct platform_device *pdev; const struct atmel_qspi_caps *caps; + resource_size_t mmap_size; u32 pending; u32 mr; u32 scr; @@ -329,6 +330,14 @@ static int atmel_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) u32 sr, offset; int err; + /* + * Check if the address exceeds the MMIO window size. An improvement + * would be to add support for regular SPI mode and fall back to it + * when the flash memories overrun the controller's memory space. + */ + if (op->addr.val + op->data.nbytes > aq->mmap_size) + return -ENOTSUPP; + err = atmel_qspi_set_cfg(aq, op, &offset); if (err) return err; @@ -480,6 +489,8 @@ static int atmel_qspi_probe(struct platform_device *pdev) goto exit; } + aq->mmap_size = resource_size(res); + /* Get the peripheral clock */ aq->pclk = devm_clk_get(&pdev->dev, "pclk"); if (IS_ERR(aq->pclk)) |