106 lines
2.4 KiB
Diff
106 lines
2.4 KiB
Diff
From 080f1a0c539180a88066fb004a8c31eefdf74161 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Fri, 9 Aug 2013 18:47:27 +0200
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Subject: [PATCH 02/25] reset: Fix compile when reset RESET_CONTROLLER is not
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selected
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Drivers need to protect their reset api calls with #ifdef to avoid compile
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errors.
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This patch adds dummy wrappers in the same way that linux/of.h does it.
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Cc: linux-kernel@vger.kernel.org
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Cc: Philipp Zabel <p.zabel@pengutronix.de>
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Cc: Gabor Juhos <juhosg@openwrt.org>
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---
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include/linux/reset-controller.h | 16 ++++++++++++++
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include/linux/reset.h | 43 ++++++++++++++++++++++++++++++++++++++
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2 files changed, 59 insertions(+)
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--- a/include/linux/reset-controller.h
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+++ b/include/linux/reset-controller.h
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@@ -45,7 +45,23 @@ struct reset_controller_dev {
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unsigned int nr_resets;
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};
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+#if defined(CONFIG_RESET_CONTROLLER)
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+
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int reset_controller_register(struct reset_controller_dev *rcdev);
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void reset_controller_unregister(struct reset_controller_dev *rcdev);
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+#else
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+
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+static inline int reset_controller_register(struct reset_controller_dev *rcdev)
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+{
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+ return -ENOSYS;
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+}
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+
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+void reset_controller_unregister(struct reset_controller_dev *rcdev)
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+{
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+
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+}
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+
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+#endif
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+
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#endif
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--- a/include/linux/reset.h
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+++ b/include/linux/reset.h
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@@ -1,9 +1,13 @@
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#ifndef _LINUX_RESET_H_
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#define _LINUX_RESET_H_
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+#include <linux/err.h>
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+
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struct device;
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struct reset_control;
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+#if defined(CONFIG_RESET_CONTROLLER)
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+
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int reset_control_reset(struct reset_control *rstc);
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int reset_control_assert(struct reset_control *rstc);
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int reset_control_deassert(struct reset_control *rstc);
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@@ -14,4 +18,43 @@ struct reset_control *devm_reset_control
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int device_reset(struct device *dev);
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+#else /* CONFIG_RESET_CONTROLLER */
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+
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+static inline int reset_control_reset(struct reset_control *rstc)
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+{
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+ return -ENOSYS;
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+}
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+
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+static inline int reset_control_assert(struct reset_control *rstc)
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+{
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+ return -ENOSYS;
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+}
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+
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+static inline int reset_control_deassert(struct reset_control *rstc)
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+{
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+ return -ENOSYS;
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+}
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+
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+static inline struct reset_control *reset_control_get(struct device *dev, const char *id)
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+{
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+ return ERR_PTR(-ENOSYS);
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+}
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+
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+static inline void reset_control_put(struct reset_control *rstc)
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+{
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+
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+}
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+
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+static inline struct reset_control *devm_reset_control_get(struct device *dev, const char *id)
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+{
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+ return ERR_PTR(-ENOSYS);
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+}
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+
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+static inline int device_reset(struct device *dev)
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+{
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+ return -ENOSYS;
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+}
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+
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+#endif
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+
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#endif
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