Hi Anand, On 2016-12-24 11:10, Anand Moon wrote:
Hi Marek On 23 December 2016 at 17:54, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote:Hello, This patchset is a next step to add support for audio power domain on Exynos5 SoCs. Audio power domain on Exynos5 SoCs contains following hardware modules: 1. clock controller 2. pin controller 3. PL330 DMA controller 4. I2S audio controller Till now it was assumed that pin controller is located in the "always on" power domain and lacked runtime power management. This patch finally removes such assumption and adds runtime pm support and awareness to this driver. To achieve this, some changes in the Exynos platform support code were needed, like moving pad retention control to the pin controller driver. Some cleanup to the pin controller driver has been also done while changing the code. This new feature requires some additional information in the device tree, what is handled by patches 1,2 and 9. Please note that patches are ordered in such a way that the changes can be bisected, so the properties are added to dts before the code requiring them. The other patches related to enabling full support for audio power domain can be found here: 1. PL330 ADMA controller non-irqsafe runtime PM: https://www.spinics.net/lists/arm-kernel/msg550008.html 2. Runtime PM for clock controllers (Exynos Audio subsystem will be added in v4 soon): https://www.spinics.net/lists/arm-kernel/msg538122.html Patches are based on linux-next from 2016.12.22. Best regards Marek Szyprowski Samsung R&D Institute Poland Patch summary: Marek Szyprowski (9): ARM: dts: exynos: Add PMU syscon to pinctrl nodes ARM: dts: exynos: Add pinctrl sleep state for 542x i2s module pinctrl: samsung: Remove dead code pinctrl: samsung: Use generic of_device_get_match_data helper pinctrl: samsung: Move retention control from mach-exynos to the pinctrl driver pinctrl: samsung: Replace syscore ops with standard platform device pm_ops pinctrl: samsung: Add property to mark pad state as suitable for power down pinctrl: samsung: Add runtime PM support ARM: dts: exynos: Add audio power domain support to Exynos542x SoCs .../bindings/pinctrl/samsung-pinctrl.txt | 12 ++ arch/arm/boot/dts/exynos3250.dtsi | 2 + arch/arm/boot/dts/exynos4210.dtsi | 3 + arch/arm/boot/dts/exynos4x12.dtsi | 3 + arch/arm/boot/dts/exynos5250.dtsi | 4 + arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 11 ++ arch/arm/boot/dts/exynos5420.dtsi | 18 ++- arch/arm/mach-exynos/suspend.c | 64 --------- drivers/pinctrl/samsung/pinctrl-exynos.c | 148 +++++++++++++++++++++ drivers/pinctrl/samsung/pinctrl-samsung.c | 126 ++++++++---------- drivers/pinctrl/samsung/pinctrl-samsung.h | 15 +++ 11 files changed, 271 insertions(+), 135 deletions(-)Is their core configuration missing to enable audio through HDMI on Odroid Boards. I could not get the sound working on Odroid XU4.
Audio support for HDMI on Exynos requires some additional code. We will take a look at this 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
