| Message ID | 20240124-spi-multi-cs-max-v2-1-df6fc5ab1abc@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 2f8c7c3715f2c6fb51a4ecc0905c04dd78a3da29 |
| Headers | show |
| Series | [v2] spi: Raise limit on number of chip selects | expand |
On Wed, 24 Jan 2024 13:24:24 +0000, Mark Brown wrote: > As reported by Guenter the limit we've got on the number of chip selects is > set too low for some systems, raise the limit. We should really remove the > hard coded limit but this is needed as a fix so let's do the simple thing > and raise the limit for now. > > Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/1] spi: Raise limit on number of chip selects commit: 2f8c7c3715f2c6fb51a4ecc0905c04dd78a3da29 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 471fe2ff9066..600fbd5daf68 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -21,7 +21,7 @@ #include <uapi/linux/spi/spi.h> /* Max no. of CS supported per spi device */ -#define SPI_CS_CNT_MAX 4 +#define SPI_CS_CNT_MAX 16 struct dma_chan; struct software_node;
As reported by Guenter the limit we've got on the number of chip selects is set too low for some systems, raise the limit. We should really remove the hard coded limit but this is needed as a fix so let's do the simple thing and raise the limit for now. Fixes: 4d8ff6b0991d ("spi: Add multi-cs memories support in SPI core") Reported-by: Guenter Roeck <linux@roeck-us.net> Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@kernel.org> --- Changes in v2: - Raise the limit further, the highest I've seen thus far is 12. - Link to v1: https://lore.kernel.org/r/20240122-spi-multi-cs-max-v1-1-a7e98cd5f6c7@kernel.org --- include/linux/spi/spi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: 65163d16fcaef37733b5f273ffe4d00d731b34de change-id: 20240121-spi-multi-cs-max-23e82c815c6d Best regards,