Hi all,
This is yet another approach to submit patches, which enables HDMI support for two Exynos based platforms: UniversalC210 and Odroid X2/U3.
Beside DTS changes, this patchset adds parent domain support for Exynos PM domains. This was the most controversial patch in the previous attempts, but I hope I fixes all reported issues and made it really generic. For more details see individual patches.
The patchset is based on my previous patch: 'ARM: DTS: Exynos: convert to generic power domain bindings' (http://www.spinics.net/lists/linux-samsung-soc/msg40584.html) and 'PM / Domains: Export of_genpd_get_from_provider function' patch merged as commit 7496fcbe8a643097efc061160e1c3b65ee2fa350 to v3.19-rc4.
Thanks to Tobias Jakobi for testing and finding out that the already merged exynos4 clocks hierarchy fixup (commit df019a5c0f7083001cb694f44821ca506425bda2 'clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi') doesn't work in all cases. To finlly solve the power on/off issues I've decided to simply add 'hdmi' clock handling also to mixer module.
Regards Marek Szyprowski
Changelog:
v4: - added patches, which add 'hdmi' clock handling to mixed block, this finally solves the initialization related issues, thanks for Tobias Jakobi for testing - added acks/reviewed/tested by tags
v3: (http://www.spinics.net/lists/linux-samsung-soc/msg41020.html) - added a note on defining subdomains to generic PM domain binding documentation (requested by Ulf Hansson)
v2: (http://www.spinics.net/lists/linux-samsung-soc/msg40980.html) - rewrote subdomains patch according to suggestions from Geert Uytterhoeven and Amit Daniel Kachhap.
v1 resend: (http://www.spinics.net/lists/linux-samsung-soc/msg39428.html) - added handling of generic 'power-domains' binding in subdomains
v1: (http://www.spinics.net/lists/linux-samsung-soc/msg38914.html) - resolved power domain on/off issue with 'clk: samsung: exynos4: set parent of mixer gate clock to hdmi' patch
v0: (http://www.spinics.net/lists/linux-samsung-soc/msg33498.html) - first attempt, used 'always on' power domains hack
Patch summary:
Andrzej Hajda (1): ARM: dts: exynos5250: add display power domain
Marek Szyprowski (7): PM / Domains: Add a note about power domain subdomains ARM: Exynos: add support for sub-power domains ARM: dts: exynos4: add hdmi related nodes ARM: dts: exynos4: add dependency between TV and LCD0 power domains ARM: dts: exynos4412-odroid: enable hdmi support ARM: dts: Exynos: add 'hdmi' clock to mixer nodes drm/exynos: fix mixer start sequence
Tomasz Stanislawski (1): ARM: dts: exynos4210-universal_c210: enable hdmi support
.../bindings/arm/exynos/power_domain.txt | 2 + .../devicetree/bindings/power/power_domain.txt | 29 +++++++++++ arch/arm/boot/dts/exynos4.dtsi | 41 ++++++++++++++++ arch/arm/boot/dts/exynos4210-universal_c210.dts | 57 ++++++++++++++++++++++ arch/arm/boot/dts/exynos4210.dtsi | 8 +++ arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 44 +++++++++++++++++ arch/arm/boot/dts/exynos4x12.dtsi | 11 +++++ arch/arm/boot/dts/exynos5250.dtsi | 15 +++++- arch/arm/boot/dts/exynos5420.dtsi | 5 +- arch/arm/mach-exynos/pm_domains.c | 28 +++++++++++ drivers/gpu/drm/exynos/exynos_mixer.c | 9 ++++ 11 files changed, 245 insertions(+), 4 deletions(-)