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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-01 16:35:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-01 16:35:31 -0800
commitfe53d1443a146326b49d57fe6336b5c2a725223f (patch)
tree0bb6de8614bec52f025a0608910e80d6e9315245 /include/linux/reset.h
parentadbc128fa8b4e9ecfdd11d5dd0a7d9845c6ea510 (diff)
parent796543a64ebffdb638a22f428c4dadd037e34866 (diff)
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann: "A number of new drivers get added this time, along with many low-priority bugfixes. The most interesting changes by subsystem are: bus drivers: - Updates to the Broadcom bus interface driver to support newer SoC types - The TI OMAP sysc driver now supports updated DT bindings memory controllers: - A new driver for Tegra186 gets added - A new driver for the ti-emif sram, to allow relocating suspend/resume handlers there SoC specific: - A new driver for Qualcomm QMI, the interface to the modem on MSM SoCs - A new driver for power domains on the actions S700 SoC - A driver for the Xilinx Zynq VCU logicoreIP reset controllers: - A new driver for Amlogic Meson-AGX - various bug fixes tee subsystem: - A new user interface got added to enable asynchronous communication with the TEE supplicant. - A new method of using user space memory for communication with the TEE is added" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (84 commits) of: platform: fix OF node refcount leak soc: fsl: guts: Add a NULL check for devm_kasprintf() bus: ti-sysc: Fix smartreflex sysc mask psci: add CPU_IDLE dependency soc: xilinx: Fix Kconfig alignment soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu soc: bcm: brcmstb: Be multi-platform compatible soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms Revert "soc: brcmstb: Only register SoC device on STB platforms" bus: omap: add MODULE_LICENSE tags soc: brcmstb: Only register SoC device on STB platforms tee: shm: Potential NULL dereference calling tee_shm_register() soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver soc: xilinx: Create folder structure for soc specific drivers of: platform: populate /firmware/ node from of_platform_default_populate_init() soc: samsung: Add SPDX license identifiers soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe() tee: shm: don't put_page on null shm->pages ...
Diffstat (limited to 'include/linux/reset.h')
-rw-r--r--include/linux/reset.h50
1 files changed, 16 insertions, 34 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 4c7871ddf3c6..09732c36f351 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -2,8 +2,10 @@
#ifndef _LINUX_RESET_H_
#define _LINUX_RESET_H_
-#include <linux/device.h>
+#include <linux/types.h>
+struct device;
+struct device_node;
struct reset_control;
#ifdef CONFIG_RESET_CONTROLLER
@@ -20,22 +22,16 @@ struct reset_control *__reset_control_get(struct device *dev, const char *id,
int index, bool shared,
bool optional);
void reset_control_put(struct reset_control *rstc);
+int __device_reset(struct device *dev, bool optional);
struct reset_control *__devm_reset_control_get(struct device *dev,
const char *id, int index, bool shared,
bool optional);
-int __must_check device_reset(struct device *dev);
-
struct reset_control *devm_reset_control_array_get(struct device *dev,
bool shared, bool optional);
struct reset_control *of_reset_control_array_get(struct device_node *np,
bool shared, bool optional);
-static inline int device_reset_optional(struct device *dev)
-{
- return device_reset(dev);
-}
-
#else
static inline int reset_control_reset(struct reset_control *rstc)
@@ -62,15 +58,9 @@ static inline void reset_control_put(struct reset_control *rstc)
{
}
-static inline int __must_check device_reset(struct device *dev)
-{
- WARN_ON(1);
- return -ENOTSUPP;
-}
-
-static inline int device_reset_optional(struct device *dev)
+static inline int __device_reset(struct device *dev, bool optional)
{
- return -ENOTSUPP;
+ return optional ? 0 : -ENOTSUPP;
}
static inline struct reset_control *__of_reset_control_get(
@@ -109,6 +99,16 @@ of_reset_control_array_get(struct device_node *np, bool shared, bool optional)
#endif /* CONFIG_RESET_CONTROLLER */
+static inline int __must_check device_reset(struct device *dev)
+{
+ return __device_reset(dev, false);
+}
+
+static inline int device_reset_optional(struct device *dev)
+{
+ return __device_reset(dev, true);
+}
+
/**
* reset_control_get_exclusive - Lookup and obtain an exclusive reference
* to a reset controller.
@@ -127,9 +127,6 @@ of_reset_control_array_get(struct device_node *np, bool shared, bool optional)
static inline struct reset_control *
__must_check reset_control_get_exclusive(struct device *dev, const char *id)
{
-#ifndef CONFIG_RESET_CONTROLLER
- WARN_ON(1);
-#endif
return __reset_control_get(dev, id, 0, false, false);
}
@@ -275,9 +272,6 @@ static inline struct reset_control *
__must_check devm_reset_control_get_exclusive(struct device *dev,
const char *id)
{
-#ifndef CONFIG_RESET_CONTROLLER
- WARN_ON(1);
-#endif
return __devm_reset_control_get(dev, id, 0, false, false);
}
@@ -350,18 +344,6 @@ devm_reset_control_get_shared_by_index(struct device *dev, int index)
* These inline function calls will be removed once all consumers
* have been moved over to the new explicit API.
*/
-static inline struct reset_control *reset_control_get(
- struct device *dev, const char *id)
-{
- return reset_control_get_exclusive(dev, id);
-}
-
-static inline struct reset_control *reset_control_get_optional(
- struct device *dev, const char *id)
-{
- return reset_control_get_optional_exclusive(dev, id);
-}
-
static inline struct reset_control *of_reset_control_get(
struct device_node *node, const char *id)
{