@@ -125,6 +125,16 @@
<GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
};
+ scpsys: scpsys@10006000 {
+ compatible = "mediatek,mt8173-scpsys";
+ #power-domain-cells = <1>;
+ reg = <0 0x10006000 0 0x1000>;
+ clocks = <&clk26m>,
+ <&topckgen CLK_TOP_MM_SEL>;
+ clock-names = "mfg", "mm";
+ infracfg = <&infracfg>;
+ };
+
sysirq: intpol-controller@10200620 {
compatible = "mediatek,mt8173-sysirq",
"mediatek,mt6577-sysirq";
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commit 4aa48202b3f22a71685f66d66beff0f040781bfd
Author: Sascha Hauer <s.hauer@pengutronix.de>
Date: Mon Mar 9 08:41:36 2015 +0100
ARM64: MediaTek MT8173: Add SCPSYS device node
This adds the SCPSYS device node to the MT8173 dtsi file.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
@@ -125,6 +125,16 @@
<GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
};
+ scpsys: scpsys@10006000 {
+ compatible = "mediatek,mt8173-scpsys";
+ #power-domain-cells = <1>;
+ reg = <0 0x10006000 0 0x1000>;
+ clocks = <&clk26m>,
+ <&topckgen CLK_TOP_MM_SEL>;
+ clock-names = "mfg", "mm";
+ infracfg = <&infracfg>;
+ };
+
sysirq: intpol-controller@10200620 {
compatible = "mediatek,mt8173-sysirq",
"mediatek,mt6577-sysirq";
This series adds support for the MediaTek SCPSYS unit. The SCPSYS unit handles several power management related tasks such as thermal measurement, DVFS, interrupt filter and low level sleep control. The initial support only contains the generic power domain handling. This is needed to turn on power to the different power domains. The driver is quite straight forward now. Due to the lack of a better place I have put it to drivers/soc/mediatek. As the SCPSYS unit has several other tasks that also do not fit into some specific subsystem this probably is a good place for this driver. Please review, any input welcome. Sascha Changes since v4: - move Kconfig dependency "select PM_GENERIC_DOMAINS if PM" from arch/arm64 next to the driver which needs this dependency - drop unnecessary clk[] array from struct scp and make the array local to the function which needs it. - Disable clock when enabling the domain fails - Drop error message when devm_clk_get fails. The core already issues a similar warning - Add clocks/clock-names description to the binding doc Changes since v3: - Drop unnecessary MODULE_* macros for builtin code - introduce scpsys_domain_is_on() function instead of open coding this twice - Drop unnecessary initialisation of power_o[ff|n]_latencies. The kernel updates them with the measured values anyway. changes since v2: - Add missing include/linux/soc/mediatek/infracfg.h file - rename VDE -> VDEC, VEN -> VENC, DIS -> DISP and VEN2 -> VENC_LT to make the abbreviatons more clear - make of_device_id const - remove double loop - fix hunk in wrong patch - Fix order of domains. Some domains depend on other domains. Reorder the domains so that all domains can be turned on in order when CONFIG_PM is disabled. Also fixes earlier mixups in the domain array - Do not allow compilation as modules. pm_domains cannot be removed, so compilation as module is not that useful - reorder Kconfig items alphabetically - reorder #includes alphabetically - select MTK_INFRACFG instead of depending on it - Use only two clocks as dependencies for the domains. The previously used 5 clocks are not necessary as confirmed by the hardware designers - use 'genpd' as variable name for struct generic_pm_domain like done in other pm code changes since v1: - make MFG_ASYNC a subdomain of MFG_2D and MFG_2D a subdomain of MFG - Add (now hopefully properly) infracfg register handling again - Add clock handling - Fix on/off mixup in error message - Make readonly data const - Fix MODULE_LICENSE to GPL v2 changes since RFC: - add a commit log to driver patch - drop manipulating infracfg registers for now, can be added (properly) later - Add warning messages when errors occur - add NULL pointer check for kmalloc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABCAAGBQJVdqbqAAoJEPFlmONMx+ezvloP/jpQ1JBTkYvivy4oB+t8GuxU J6xLeo5k4uBKHNbTVm/2YbpROwwxA8Q+B/S4iG5mKNSydW6pf9jfA05XFpto0yKr CXkbSoWWS2emP3HlnObnW5DYf6ggSq349E5Sopl5G4nW+tOBc1GceND4k9HoRNSu MRRlZE0YK+QZ0Mz2x+RVNBnfiI8EU4gXcNdPq/aMEXIj+gSHtMeg2s7Zlg7zzyTQ x4ambA2DiGSumqYMWscJUGxJT1GLH7cMmfe5pKDFu9P0z11Og/8A7ix00x0UTdto DKqxOyGE4qdQ3Ma8Fb7j15VZ56Y21e7EKkSrv1FK5qSKcfzXnoOWu1xmBL2q0Jht X/kfEShfoeU8AMDf89zwxmUTqNx3nPuhsPpQeuVEIiO70cWvJ0dchL4Kp0t8a+xs nTmnS6S6Mm8MEUfhYmkJJ7p8WR4roQ+b+W5yeVFPWL9ft81CuioLrAEr/57GeIdR bhd4MgWlatNprBRvv/I6aBhFklWoSY87ERKJC9w9vvogZ7of/TEv1lMOI91qKMNL eg9y4Pw/FWkZyK0bIysykGHwQcNGLxqlKX52QLbefAM0jzdaljtbyHr3u7SnvpZS AikPoSJ+RC3jbP15Fx7IuD/XUCFt3fuSmUbyODpZJZM9MNo6xgmfsqmtwGUoTsbP DAFexU9wsU/2Xny1Ygjk =UL1E -----END PGP SIGNATURE----- commit 5e33965ca0b265401349229773ee7a3732a63388 Author: Sascha Hauer <s.hauer@pengutronix.de> Date: Mon Mar 9 08:41:36 2015 +0100 ARM64: MediaTek MT8173: Add SCPSYS device node This adds the SCPSYS device node to the MT8173 dtsi file. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>