Hi All,
On 2016-12-19 07:37, Marek Szyprowski wrote:
Hi Krzysztof,
On 2016-12-16 17:50, Krzysztof Kozlowski wrote:
On Fri, Dec 16, 2016 at 01:39:00PM +0100, Marek Szyprowski wrote:
UART modules can use DMA for offloading data transfers and reducing
interrupts, so enable this feature for Exynos5 boards. Tested on
Google ChromeBook Snow (Exynos5250) and Odroid XU3 (Exynos5422) boards.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
v2:
- added Exynos5250
- fixed copy/paste typo for serial 2 and 3
---
arch/arm/boot/dts/exynos5250.dtsi | 8 ++++++++
arch/arm/boot/dts/exynos5420.dtsi | 8 ++++++++
2 files changed, 16 insertions(+)
On Exynos4412 enabling DMA for serial exposed some interesting bugs so I
assume here the fun will start after applying? :)
Enabling DMA on Exynos4412 already exposed bugs, which finally were fixed
and now it works really fine there. I don't expect any issues after
enabling
it on Exynos5250/5422.
Looks good, what about Exynos5410?
Exynos5410 will be handled separately, because it needs more patches -
PL3310
DMA controllers are not yet defined nor clocks for them.
Huh, I didn't notice that this has been already in -next. I will updated the
patch to cover Exynos5410 too.
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
--
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
