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some issue was involved when merging the commit to kernel 4.1
Signed-off-by: Han Xu <b45815@freescale.com>
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Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Han Xu <b45815@freescale.com>
Also squashed the following:
MLK-11409-1: ARM: dts: imx7d-12x12-lpddr3-arm2.dts
Restore pinhogs after exit from lpsr mode.
It otherwise didn't build
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
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non GPIO function before lpsr suspend
It's hardware issue that if there are interrupts in GPIO1, the system
will not enter lpsr suspend state.
gpio1_12 pin is used as headphone detect pin for wm8958 sound card. If
headphone is not plugged in, the gpio1_12 pin is high level. When lpsr
suspend without headphone plugged in, gpio will be powered down and
there will be a interrupt in the gpio1_12 pin.
So we should avoid thus interrupt. We fix this issue by configuring
gpio1_12 pin to non GPIO function before lpsr suspend.
Because ALSA will set SAI pins to sleep state before suspend, and will
not set them to default state after resume if cpu dai is not active. So
we'd better remove non SAI pins from SAI pin group, and let iomuxc to
control the gpio pin state.
Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
(cherry picked from commit b3e988b838388f901d471a6938d0fb67b9bcad3b)
Conflicts:
arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2.dts
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sound card support in lpsr mode
enable sai<->wm8958 sound card support in lpsr mode
Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
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add sai<->WM8958 sound card support
Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
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