Am Dienstag, 5. März 2013, 22:54:22 schrieb Arnd Bergmann: > On Tuesday 05 March 2013, Arnd Bergmann wrote: > > The s3c64xx_dma code is also interesting because > > it has both an implementation of the s3c_dma interface in > > arch/arm/mach-s3c64xx/dma.c and one using the generic interface in > > drivers/dma/amba-pl08x.c. > > This actually brings me to an interesting idea: the s3c64xx SPI driver > is used with the regular dmaengine API and pl330 on S5P and Exynos, > but with the s3c-dma interface and pl080 on S3C64xx. > > If we just convert S3C64xx to use the pl080 dmaengine driver > instead, we can apply my SPI patch without breaking anything. The S3C24XX starting from S3C2443 (including S3C2416 and S3C2450) also use the s3c64xx-spi driver. My argument has of course the problem of me seemingly being the only user of it currently and it being stuff not in mainline yet [0] :-) . But on the other hand, it's no use anyway staying attached to old cruft, so it also wouldn't be a problem to go your way. I'll just try to come up with a dmaengine driver for s3c24xx after common-clk and pinctrl ;-) . [0] https://github.com/mmind/linux-es600/blob/topic/es600-devel/arch/arm/mach- s3c24xx/mach-as090.c#L138 > We still need a solution for the ASoC drivers, but they are > not as essential. We could probably move the wrapper files > from plat-samsung/*dma*.c to sounds/soc/samsung when that becomes > the only remaining user. In ASoC there is also a clear distinction between the different SoC generations. SND_SAMSUNG_I2S /_PCM /_AC97 ... is only used by newer SoCs while SND_S3C24XX_I2S and SND_S3C_I2SV2_SOC is used by the legacy SoCs. Of course "my subarch" is bitten again, as it's using the new sound interface, but the same as above applies. Heiko -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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