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authorKrzysztof Kozlowski <krzk@kernel.org>2019-03-14 23:02:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-15 12:53:05 +0300
commit6e63900b7a732e8c6c4e29ef66c819cd66d24b7a (patch)
tree2221312c8cfa874a84d159e180e77362db8f1fa5 /include
parent4effefce24f31270974220e9ddeed8e7e840317a (diff)
downloadlinux-6e63900b7a732e8c6c4e29ef66c819cd66d24b7a.tar.xz
ARM: dts: exynos: Always enable necessary APIO_1V8 and ABB_1V8 regulators on Arndale Octa
[ Upstream commit 5ab99cf7d5e96e3b727c30e7a8524c976bd3723d ] The PVDD_APIO_1V8 (LDO2) and PVDD_ABB_1V8 (LDO8) regulators were turned off by Linux kernel as unused. However they supply critical parts of SoC so they should be always on: 1. PVDD_APIO_1V8 supplies SYS pins (gpx[0-3], PSHOLD), HDMI level shift, RTC, VDD1_12 (DRAM internal 1.8 V logic), pull-up for PMIC interrupt lines, TTL/UARTR level shift, reset pins and SW-TACT1 button. It also supplies unused blocks like VDDQ_SRAM (for SROM controller) and VDDQ_GPIO (gpm7, gpy7). The LDO2 cannot be turned off (S2MPS11 keeps it on anyway) so marking it "always-on" only reflects its real status. 2. PVDD_ABB_1V8 supplies Adaptive Body Bias Generator for ARM cores, memory and Mali (G3D). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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