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c760569d0e
While powering on/off a local powerdomain in exynos5 chipsets, the
input clocks to each device gets modified. This behaviour is based
on the SYSCLK_SYS_PWR_REG registers.
E.g. SYSCLK_MFC_SYS_PWR_REG = 0x0, the parent of input clock to MFC
(aclk333) gets modified to oscclk
= 0x1, no change in clocks.
The recommended value of SYSCLK_SYS_PWR_REG before power gating any
domain is 0x0. So we must also restore the clocks while powering on
a domain everytime.
This patch adds the framework for getting the required mux and parent
clocks through a power domain device node. With this patch, while
powering off a domain, parent is set to oscclk and while powering back
on, its re-set to the correct parent which is as per the recommended
pd on/off sequence.
Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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| .. | ||
| altera | ||
| bcm | ||
| calxeda | ||
| davinci | ||
| exynos | ||
| firmware | ||
| hisilicon | ||
| keystone | ||
| mrvl | ||
| msm | ||
| omap | ||
| rockchip | ||
| samsung | ||
| spear | ||
| tegra | ||
| vt8500 | ||
| arch_timer.txt | ||
| arm-boards | ||
| armada-38x.txt | ||
| armada-370-xp-pmsu.txt | ||
| armada-370-xp.txt | ||
| armada-375.txt | ||
| armada-cpu-reset.txt | ||
| armadeus.txt | ||
| atmel-aic.txt | ||
| atmel-at91.txt | ||
| atmel-pmc.txt | ||
| axxia.txt | ||
| bcm2835.txt | ||
| bcm4708.txt | ||
| calxeda.txt | ||
| cci.txt | ||
| coherency-fabric.txt | ||
| cpus.txt | ||
| davinci.txt | ||
| fsl.txt | ||
| gic.txt | ||
| global_timer.txt | ||
| insignal-boards.txt | ||
| kirkwood.txt | ||
| l2cc.txt | ||
| lpc32xx-mic.txt | ||
| lpc32xx.txt | ||
| marvell,berlin.txt | ||
| marvell,dove.txt | ||
| marvell,kirkwood.txt | ||
| moxart.txt | ||
| mvebu-system-controller.txt | ||
| nspire.txt | ||
| olimex.txt | ||
| picoxcell.txt | ||
| pmu.txt | ||
| primecell.txt | ||
| psci.txt | ||
| rockchip.txt | ||
| rtsm-dcscb.txt | ||
| samsung-boards.txt | ||
| sirf.txt | ||
| spear-timer.txt | ||
| spear.txt | ||
| ste-nomadik.txt | ||
| ste-u300.txt | ||
| sti.txt | ||
| tegra.txt | ||
| topology.txt | ||
| twd.txt | ||
| versatile-fpga-irq.txt | ||
| vexpress-scc.txt | ||
| vexpress-sysreg.txt | ||
| vexpress.txt | ||
| vic.txt | ||
| vt8500.txt | ||
| xen.txt | ||
| xilinx.txt | ||