linux-kernel - [RFC PATCH 03/11] cpuidle: Remove Calxeda driver

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Date:   Tue, 18 Feb 2020 11:13:13 -0600
From:   Rob Herring <robh@...nel.org>
To:     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>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "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: [RFC PATCH 03/11] cpuidle: Remove Calxeda driver

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>
---
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