linux-kernel - [PATCH] cpufreq: remove tango driver

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Date:   Wed, 20 Jan 2021 14:16:44 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Mans Rullgard <mans@...sr.com>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] cpufreq: remove tango driver

From: Arnd Bergmann <arnd@...db.de>

The tango platform is getting removed, so the driver is no
longer needed.

Cc: Marc Gonzalez <marc.w.gonzalez@...e.fr>
Cc: Mans Rullgard <mans@...sr.com>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/cpufreq/Kconfig.arm     |  5 -----
 drivers/cpufreq/Makefile        |  1 -
 drivers/cpufreq/tango-cpufreq.c | 38 ---------------------------------
 3 files changed, 44 deletions(-)
 delete mode 100644 drivers/cpufreq/tango-cpufreq.c

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 1f73fa75b1a0..e65e0a43be64 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -289,11 +289,6 @@ config ARM_STI_CPUFREQ
 	  this config option if you wish to add CPUFreq support for STi based
 	  SoCs.
 
-config ARM_TANGO_CPUFREQ
-	bool
-	depends on CPUFREQ_DT && ARCH_TANGO
-	default y
-
 config ARM_TEGRA20_CPUFREQ
 	tristate "Tegra20/30 CPUFreq support"
 	depends on ARCH_TEGRA && CPUFREQ_DT
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index f1b7e3dd6e5d..1ab9b1536304 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -79,7 +79,6 @@ obj-$(CONFIG_ARM_SCPI_CPUFREQ)		+= scpi-cpufreq.o
 obj-$(CONFIG_ARM_SPEAR_CPUFREQ)		+= spear-cpufreq.o
 obj-$(CONFIG_ARM_STI_CPUFREQ)		+= sti-cpufreq.o
 obj-$(CONFIG_ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM) += sun50i-cpufreq-nvmem.o
-obj-$(CONFIG_ARM_TANGO_CPUFREQ)		+= tango-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA20_CPUFREQ)	+= tegra20-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA124_CPUFREQ)	+= tegra124-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA186_CPUFREQ)	+= tegra186-cpufreq.o
diff --git a/drivers/cpufreq/tango-cpufreq.c b/drivers/cpufreq/tango-cpufreq.c
deleted file mode 100644
index 89a7f860bfe8..000000000000
--- a/drivers/cpufreq/tango-cpufreq.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <linux/of.h>
-#include <linux/cpu.h>
-#include <linux/clk.h>
-#include <linux/pm_opp.h>
-#include <linux/platform_device.h>
-
-static const struct of_device_id machines[] __initconst = {
-	{ .compatible = "sigma,tango4" },
-	{ /* sentinel */ }
-};
-
-static int __init tango_cpufreq_init(void)
-{
-	struct device *cpu_dev = get_cpu_device(0);
-	unsigned long max_freq;
-	struct clk *cpu_clk;
-	void *res;
-
-	if (!of_match_node(machines, of_root))
-		return -ENODEV;
-
-	cpu_clk = clk_get(cpu_dev, NULL);
-	if (IS_ERR(cpu_clk))
-		return -ENODEV;
-
-	max_freq = clk_get_rate(cpu_clk);
-
-	dev_pm_opp_add(cpu_dev, max_freq / 1, 0);
-	dev_pm_opp_add(cpu_dev, max_freq / 2, 0);
-	dev_pm_opp_add(cpu_dev, max_freq / 3, 0);
-	dev_pm_opp_add(cpu_dev, max_freq / 5, 0);
-	dev_pm_opp_add(cpu_dev, max_freq / 9, 0);
-
-	res = platform_device_register_data(NULL, "cpufreq-dt", -1, NULL, 0);
-
-	return PTR_ERR_OR_ZERO(res);
-}
-device_initcall(tango_cpufreq_init);
-- 
2.29.2