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Date: Tue, 18 Feb 2020 18:35:12 +0100
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: Rob Herring <robh@...nel.org>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
soc@...nel.org, Andre Przywara <andre.przywara@....com>,
Robert Richter <rrichter@...vell.com>,
Jon Loeliger <jdl@....com>, Alexander Graf <graf@...zon.com>,
Matthias Brugger <mbrugger@...e.com>,
Mark Langsdorf <mlangsdo@...hat.com>
Cc: Alex Williamson <alex.williamson@...hat.com>,
Borislav Petkov <bp@...en8.de>,
Cornelia Huck <cohuck@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
devicetree@...r.kernel.org, Eric Auger <eric.auger@...hat.com>,
iommu@...ts.linux-foundation.org,
James Morse <james.morse@....com>,
Jens Axboe <axboe@...nel.dk>, Joerg Roedel <joro@...tes.org>,
kvm@...r.kernel.org, linux-clk@...r.kernel.org,
linux-edac@...r.kernel.org, linux-ide@...r.kernel.org,
linux-pm@...r.kernel.org,
Mauro Carvalho Chehab <mchehab@...nel.org>,
netdev@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net>,
Robin Murphy <robin.murphy@....com>,
Stephen Boyd <sboyd@...nel.org>,
Tony Luck <tony.luck@...el.com>,
Viresh Kumar <viresh.kumar@...aro.org>,
Will Deacon <will@...nel.org>
Subject: Re: [RFC PATCH 03/11] cpuidle: Remove Calxeda driver
On 18/02/2020 18:13, Rob Herring wrote:
> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> Cc: linux-pm@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>
Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
> Do not apply yet.
>
> drivers/cpuidle/Kconfig.arm | 7 ---
> drivers/cpuidle/Makefile | 1 -
> drivers/cpuidle/cpuidle-calxeda.c | 72 -------------------------------
> 3 files changed, 80 deletions(-)
> delete mode 100644 drivers/cpuidle/cpuidle-calxeda.c
>
> diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
> index 62272ecfa771..c2830d2ed44a 100644
> --- a/drivers/cpuidle/Kconfig.arm
> +++ b/drivers/cpuidle/Kconfig.arm
> @@ -42,13 +42,6 @@ config ARM_CLPS711X_CPUIDLE
> help
> Select this to enable cpuidle on Cirrus Logic CLPS711X SOCs.
>
> -config ARM_HIGHBANK_CPUIDLE
> - bool "CPU Idle Driver for Calxeda processors"
> - depends on ARM_PSCI && !ARM64
> - select ARM_CPU_SUSPEND
> - help
> - Select this to enable cpuidle on Calxeda processors.
> -
> config ARM_KIRKWOOD_CPUIDLE
> bool "CPU Idle Driver for Marvell Kirkwood SoCs"
> depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64
> diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
> index cc8c769d7fa9..eee5f276edf7 100644
> --- a/drivers/cpuidle/Makefile
> +++ b/drivers/cpuidle/Makefile
> @@ -14,7 +14,6 @@ obj-$(CONFIG_HALTPOLL_CPUIDLE) += cpuidle-haltpoll.o
> obj-$(CONFIG_ARM_MVEBU_V7_CPUIDLE) += cpuidle-mvebu-v7.o
> obj-$(CONFIG_ARM_BIG_LITTLE_CPUIDLE) += cpuidle-big_little.o
> obj-$(CONFIG_ARM_CLPS711X_CPUIDLE) += cpuidle-clps711x.o
> -obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE) += cpuidle-calxeda.o
> obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE) += cpuidle-kirkwood.o
> obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) += cpuidle-zynq.o
> obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o
> diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
> deleted file mode 100644
> index b17d9a8418b0..000000000000
> --- a/drivers/cpuidle/cpuidle-calxeda.c
> +++ /dev/null
> @@ -1,72 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0-only
> -/*
> - * Copyright 2012 Calxeda, Inc.
> - *
> - * Based on arch/arm/plat-mxc/cpuidle.c: #v3.7
> - * Copyright 2012 Freescale Semiconductor, Inc.
> - * Copyright 2012 Linaro Ltd.
> - *
> - * Maintainer: Rob Herring <rob.herring@...xeda.com>
> - */
> -
> -#include <linux/cpuidle.h>
> -#include <linux/cpu_pm.h>
> -#include <linux/init.h>
> -#include <linux/mm.h>
> -#include <linux/platform_device.h>
> -#include <linux/psci.h>
> -
> -#include <asm/cpuidle.h>
> -#include <asm/suspend.h>
> -
> -#include <uapi/linux/psci.h>
> -
> -#define CALXEDA_IDLE_PARAM \
> - ((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \
> - (0 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \
> - (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT))
> -
> -static int calxeda_idle_finish(unsigned long val)
> -{
> - return psci_ops.cpu_suspend(CALXEDA_IDLE_PARAM, __pa(cpu_resume));
> -}
> -
> -static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
> - struct cpuidle_driver *drv,
> - int index)
> -{
> - cpu_pm_enter();
> - cpu_suspend(0, calxeda_idle_finish);
> - cpu_pm_exit();
> -
> - return index;
> -}
> -
> -static struct cpuidle_driver calxeda_idle_driver = {
> - .name = "calxeda_idle",
> - .states = {
> - ARM_CPUIDLE_WFI_STATE,
> - {
> - .name = "PG",
> - .desc = "Power Gate",
> - .exit_latency = 30,
> - .power_usage = 50,
> - .target_residency = 200,
> - .enter = calxeda_pwrdown_idle,
> - },
> - },
> - .state_count = 2,
> -};
> -
> -static int calxeda_cpuidle_probe(struct platform_device *pdev)
> -{
> - return cpuidle_register(&calxeda_idle_driver, NULL);
> -}
> -
> -static struct platform_driver calxeda_cpuidle_plat_driver = {
> - .driver = {
> - .name = "cpuidle-calxeda",
> - },
> - .probe = calxeda_cpuidle_probe,
> -};
> -builtin_platform_driver(calxeda_cpuidle_plat_driver);
> --
> 2.20.1
>
--
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