| a7519b6b | 09-Jan-2017 |
Derek Basehore <dbasehore@chromium.org> |
rockchip: rk3399: Don't wait for vblank in M0 for ddrfreq
This removes waiting for vblank on the M0 during ddrfreq transitions.
That will now be done in the kernel to allow scheduling to be done on
rockchip: rk3399: Don't wait for vblank in M0 for ddrfreq
This removes waiting for vblank on the M0 during ddrfreq transitions.
That will now be done in the kernel to allow scheduling to be done on
the CPU core that changes the ddr frequency. Waiting for vblank in
the M0 would have the CPU core that waits on the M0 spin looping for
up to 16ms (1 frame for the display).
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
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| ef0a6bfc | 30-Dec-2016 |
Lin Huang <hl@rock-chips.com> |
rockchip: rk3399: restore PMU_CRU_GATEDIS_CON0 value after ddr dvfs
we will set PMU_CRU_GATEDIS_CON0 when idle port, it will enable
all clock, for save power consumption, we need to restore old valu
rockchip: rk3399: restore PMU_CRU_GATEDIS_CON0 value after ddr dvfs
we will set PMU_CRU_GATEDIS_CON0 when idle port, it will enable
all clock, for save power consumption, we need to restore old value
when finish it.
Signed-off-by: Lin Huang <hl@rock-chips.com>
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| a82ec814 | 01-Dec-2016 |
Lin Huang <hl@rock-chips.com> |
rockchip: rk3399: check vop status when we wait dma finish flag
When vop is disabled and we read the vop register the system will
hang, so check vop status when we wait for the DMA finish flag to
av
rockchip: rk3399: check vop status when we wait dma finish flag
When vop is disabled and we read the vop register the system will
hang, so check vop status when we wait for the DMA finish flag to
avoid this sitiuation. This is done by checking for standby, DMA stop
mode, and disabled window states. Any one of these will prevent the
DMA finish flag from triggering.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
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| 977001aa | 26-Oct-2016 |
Xing Zheng <zhengxing@rock-chips.com> |
rk3399: dram: use PMU M0 to do ddr frequency scaling
We used dcf do ddr frequency scaling, but we just include a dcf
binary, it hard to maintain later, we have M0 compile flow in ATF,
and M0 can als
rk3399: dram: use PMU M0 to do ddr frequency scaling
We used dcf do ddr frequency scaling, but we just include a dcf
binary, it hard to maintain later, we have M0 compile flow in ATF,
and M0 can also work for ddr frequency scaling, so let's use it.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
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