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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Peter De Schrijver <pdeschrijver@nvidia.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 11/13] ARM: tegra: Create simple platform device for cpuidle driver
Date: Tue, 30 Jul 2019 20:09:53 +0300	[thread overview]
Message-ID: <20190730170955.11987-12-digetx@gmail.com> (raw)
In-Reply-To: <20190730170955.11987-1-digetx@gmail.com>

The new CPUIDLE driver now is a proper platform driver, hence it needs
a platform device in order to be functional. Register the platform device,
like we do that for the CPUFreq driver. Note that on some Tegra114(124)
devices PSCI may be used for the CPU hotplugging and CPUIDLE driver
doesn't support that case, thus CPUIDLE device won't be registered if
PCSI presents.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/mach-tegra/tegra.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index d9237769a37c..f1ce2857a251 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -36,6 +36,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/mach-types.h>
+#include <asm/psci.h>
 #include <asm/setup.h>
 
 #include "board.h"
@@ -92,6 +93,9 @@ static void __init tegra_dt_init_late(void)
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) &&
 	    of_machine_is_compatible("nvidia,tegra20"))
 		platform_device_register_simple("tegra20-cpufreq", -1, NULL, 0);
+
+	if (IS_ENABLED(CONFIG_ARM_TEGRA_CPUIDLE) && !psci_smp_available())
+		platform_device_register_simple("tegra-cpuidle", -1, NULL, 0);
 }
 
 static const char * const tegra_dt_board_compat[] = {
-- 
2.22.0

WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Peter De Schrijver <pdeschrijver@nvidia.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org
Subject: [PATCH v4 11/13] ARM: tegra: Create simple platform device for cpuidle driver
Date: Tue, 30 Jul 2019 20:09:53 +0300	[thread overview]
Message-ID: <20190730170955.11987-12-digetx@gmail.com> (raw)
In-Reply-To: <20190730170955.11987-1-digetx@gmail.com>

The new CPUIDLE driver now is a proper platform driver, hence it needs
a platform device in order to be functional. Register the platform device,
like we do that for the CPUFreq driver. Note that on some Tegra114(124)
devices PSCI may be used for the CPU hotplugging and CPUIDLE driver
doesn't support that case, thus CPUIDLE device won't be registered if
PCSI presents.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/mach-tegra/tegra.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index d9237769a37c..f1ce2857a251 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -36,6 +36,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/mach-types.h>
+#include <asm/psci.h>
 #include <asm/setup.h>
 
 #include "board.h"
@@ -92,6 +93,9 @@ static void __init tegra_dt_init_late(void)
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) &&
 	    of_machine_is_compatible("nvidia,tegra20"))
 		platform_device_register_simple("tegra20-cpufreq", -1, NULL, 0);
+
+	if (IS_ENABLED(CONFIG_ARM_TEGRA_CPUIDLE) && !psci_smp_available())
+		platform_device_register_simple("tegra-cpuidle", -1, NULL, 0);
 }
 
 static const char * const tegra_dt_board_compat[] = {
-- 
2.22.0


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-07-30 17:09 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30 17:09 [PATCH v4 00/13] Consolidate and improve NVIDIA Tegra CPUIDLE driver(s) Dmitry Osipenko
2019-07-30 17:09 ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 01/13] ARM: tegra: Remove cpuidle drivers to replace them with a new driver Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 02/13] ARM: tegra: Change tegra_set_cpu_in_lp2() type to void Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 03/13] ARM: tegra: Propagate error from tegra_idle_lp2_last() Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 04/13] ARM: tegra: Compile sleep-tegra20/30.S unconditionally Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 05/13] ARM: tegra: Expose PM functions required for new cpuidle driver Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 06/13] ARM: tegra: Rename some of the newly exposed PM functions Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 07/13] ARM: tegra: Add tegra_pm_park_secondary_cpu() Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 08/13] clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 09/13] cpuidle: Introduce unified driver for NVIDIA Tegra SoCs Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 10/13] cpuidle: tegra: Support CPU cluster power-down state on Tegra30 Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` Dmitry Osipenko [this message]
2019-07-30 17:09   ` [PATCH v4 11/13] ARM: tegra: Create simple platform device for cpuidle driver Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 12/13] ARM: multi_v7_defconfig: Enable Tegra " Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko
2019-07-30 17:09 ` [PATCH v4 13/13] ARM: tegra: Enable Tegra cpuidle driver in tegra_defconfig Dmitry Osipenko
2019-07-30 17:09   ` Dmitry Osipenko

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