summaryrefslogtreecommitdiff
path: root/arch/arm/include
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 09:18:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 09:18:17 -0700
commit7d2b6ef19cf0f98cef17aa5185de3631a618710a (patch)
treed4e87f3c47837fef59ef15273f89f68b73d963af /arch/arm/include
parent5c73cc4b6c83e88863a5de869cc5df3b913aef4a (diff)
parent7415d97ee2b809119270fc3a365968ff8d4f544b (diff)
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson: "Driver updates for v4.1. Some of these are for drivers/soc, where we find more and more SoC-specific drivers these days. Some are for other driver subsystems where we have received acks from the appropriate maintainers. The larger parts of this branch are: - MediaTek support for their PMIC wrapper interface, a high-level interface for talking to the system PMIC over a dedicated I2C interface. - Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU up/down and needs to be in a shared location for arm/arm64 common code. - cleanup of ARM-CCI PMU code. - another set of cleanusp to the OMAP GPMC code" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) soc/mediatek: Remove unused variables clocksource: atmel-st: select MFD_SYSCON soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs arm-cci: Fix CCI PMU event validation arm-cci: Split the code for PMU vs driver support arm-cci: Get rid of secure transactions for PMU driver arm-cci: Abstract the CCI400 PMU specific definitions arm-cci: Rearrange code for splitting PMU vs driver code drivers: cci: reject groups spanning multiple HW PMUs ARM: at91: remove useless include clocksource: atmel-st: remove mach/hardware dependency clocksource: atmel-st: use syscon/regmap ARM: at91: time: move the system timer driver to drivers/clocksource ARM: at91: properly initialize timer ARM: at91: at91rm9200: remove deprecated arm_pm_restart watchdog: at91rm9200: implement restart handler watchdog: at91rm9200: use the system timer syscon mfd: syscon: Add atmel system timer registers definition ARM: at91/dt: declare atmel,at91rm9200-st as a syscon soc: qcom: gsbi: Add support for ADM CRCI muxing ...
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arm-cci.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arm-cci.h b/arch/arm/include/asm/arm-cci.h
new file mode 100644
index 000000000000..fe77f7ab7e6b
--- /dev/null
+++ b/arch/arm/include/asm/arm-cci.h
@@ -0,0 +1,42 @@
+/*
+ * arch/arm/include/asm/arm-cci.h
+ *
+ * Copyright (C) 2015 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ASM_ARM_CCI_H
+#define __ASM_ARM_CCI_H
+
+#ifdef CONFIG_MCPM
+#include <asm/mcpm.h>
+
+/*
+ * We don't have a reliable way of detecting whether,
+ * if we have access to secure-only registers, unless
+ * mcpm is registered.
+ */
+static inline bool platform_has_secure_cci_access(void)
+{
+ return mcpm_is_available();
+}
+
+#else
+static inline bool platform_has_secure_cci_access(void)
+{
+ return false;
+}
+#endif
+
+#endif