Thread (5 messages) flat view 5 messages, 4 authors, 2014-09-23

[PATCH v8 6/8] drivers: cpuidle: CPU idle ARM64 driver

From: Lorenzo Pieralisi <hidden>
Date: 2014-09-23 18:14:47
Also in: linux-devicetree, linux-pm

On Tue, Sep 23, 2014 at 02:35:14PM +0100, Bartlomiej Zolnierkiewicz wrote:
Hi,

On Friday, September 12, 2014 12:26:43 PM Lorenzo Pieralisi wrote:
quoted
On Fri, Sep 12, 2014 at 11:32:57AM +0100, Catalin Marinas wrote:
quoted
Daniel, Lorenzo,

On Thu, Sep 11, 2014 at 10:32:48AM +0100, Daniel Lezcano wrote:
quoted
On 09/11/2014 10:57 AM, Lorenzo Pieralisi wrote:
quoted
There is no ARM code in my series. So to sum it up:

a) I send a pull request to Catalin for arm64 patches on top of the branch
    you are creating with my patches
 >
quoted
b) You take care of merging the CPUidle related patches through your
    tree

Is the above what you meant ?
Right, that allows to share a branch across the trees and resolve the 
dependencies when a patchset is touching different subsystems.

I realize the dependency is inverted regarding what I proposed 
initially, so it is up to Catalin to create the branch and I will share 
it with him.
I created the branch below with the arm64 specific patches for cpuidle.
I won't rebase it and it should appear in -next tomorrow.

Lorenzo, please send a pull request to Daniel with the additional
patches on top of the arm64 branch. Thanks.
Thank you very much, done. Pull request attached for information.

As Daniel knows, last two patches are still pending, waiting for Samsung
acks, and will be dropped if we do not get them in time.

Lorenzo

The following changes since commit 18910ab0d916b1a87016d69efd027714a80521dd:

  arm64: add PSCI CPU_SUSPEND based cpu_suspend support (2014-09-12 10:48:56 +0100)

are available in the git repository at:

  git://linux-arm.org/linux-2.6-lp.git for-upstream/arm-generic-cpuidle

for you to fetch changes up to dda773655f9b97570884c4396ad4d63daf177107:

  drivers: cpuidle: initialize Exynos driver through DT (2014-09-12 11:37:43 +0100)

----------------------------------------------------------------
Bartlomiej Zolnierkiewicz (1):
      ARM: dts: add CPU nodes for Exynos4 SoCs
This patch got broken during merge.  It differs from the version I posted
on the list by not having the closing "};" which causes a dtb build failure:

Error: arch/arm/boot/dts/exynos4210-origen.dts:21.1-2 syntax error
FATAL ERROR: Unable to parse input tree
make[1]: *** [arch/arm/boot/dts/exynos4210-origen.dtb] Error 1
make: *** [dtbs] Error 2
make: *** Waiting for unfinished jobs....

Please regenarate your branch with the fixed version of the patch
(you can squash the fix below to the broken patch).
I won't regenerate the branch, Daniel knows that the last two patches
(Samsung changes) were subject to testing and he has an mbox (and the
branch above) that he can use to cherry-pick the patches going through
his tree, as planned.

Daniel, can you squash the fix below into Bart's original patch (that is
part of the mbox I sent you and also part of the pull request) and
stick his tested-by to the Exynos DT CPUidle patch (last in the series)
please ?

I won't be able to regenerate a pull request till Monday, and honestly
there is no need for that.

Thanks a lot,
Lorenzo
quoted hunk ↗ jump to hunk
---
 arch/arm/boot/dts/exynos4210.dtsi |    1 +
 1 file changed, 1 insertion(+)

Index: b/arch/arm/boot/dts/exynos4210.dtsi
===================================================================
--- a/arch/arm/boot/dts/exynos4210.dtsi	2014-09-23 14:14:29.793571708 +0200
+++ b/arch/arm/boot/dts/exynos4210.dtsi	2014-09-23 14:17:22.029565827 +0200
@@ -39,6 +39,7 @@
 			<&clock CLK_OUT_CPU>, <&clock CLK_XXTI>,
 			<&clock CLK_XUSBXTI>;
 		#clock-cells = <1>;
+	};
 
 	cpus {
 		#address-cells = <1>;
quoted
Lorenzo Pieralisi (4):
      drivers: cpuidle: implement DT based idle states infrastructure
      drivers: cpuidle: CPU idle ARM64 driver
      drivers: cpuidle: initialize big.LITTLE driver through DT
      drivers: cpuidle: initialize Exynos driver through DT

 arch/arm/boot/dts/exynos4210.dtsi          |  27 ++++
 arch/arm/boot/dts/exynos4212.dtsi          |  17 +++
 arch/arm/boot/dts/exynos4412.dtsi          |  29 ++++
 arch/arm/boot/dts/exynos5250.dtsi          |  11 ++
 arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts |  23 ++++
 drivers/cpuidle/Kconfig                    |   8 ++
 drivers/cpuidle/Kconfig.arm                |   2 +
 drivers/cpuidle/Kconfig.arm64              |  14 ++
 drivers/cpuidle/Makefile                   |   5 +
 drivers/cpuidle/cpuidle-arm64.c            | 133 ++++++++++++++++++
 drivers/cpuidle/cpuidle-big_little.c       |  19 +++
 drivers/cpuidle/cpuidle-exynos.c           |  18 ++-
 drivers/cpuidle/dt_idle_states.c           | 213 +++++++++++++++++++++++++++++
 drivers/cpuidle/dt_idle_states.h           |   7 +
 14 files changed, 525 insertions(+), 1 deletion(-)
 create mode 100644 drivers/cpuidle/Kconfig.arm64
 create mode 100644 drivers/cpuidle/cpuidle-arm64.c
 create mode 100644 drivers/cpuidle/dt_idle_states.c
 create mode 100644 drivers/cpuidle/dt_idle_states.h
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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