564b5e24cc
Platform drivers that want to send a request but do not want to block until the RPMH request completes have now a new API - rpmh_write_async(). The API allocates memory and send the requests and returns the control back to the platform driver. The tx_done callback from the controller is handled in the context of the controller's thread and frees the allocated memory. This API allows RPMH requests from atomic contexts as well. Signed-off-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
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*/
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#ifndef __SOC_QCOM_RPMH_H__
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#define __SOC_QCOM_RPMH_H__
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#include <soc/qcom/tcs.h>
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#include <linux/platform_device.h>
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#if IS_ENABLED(CONFIG_QCOM_RPMH)
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int rpmh_write(const struct device *dev, enum rpmh_state state,
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const struct tcs_cmd *cmd, u32 n);
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int rpmh_write_async(const struct device *dev, enum rpmh_state state,
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const struct tcs_cmd *cmd, u32 n);
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int rpmh_flush(const struct device *dev);
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int rpmh_invalidate(const struct device *dev);
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#else
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static inline int rpmh_write(const struct device *dev, enum rpmh_state state,
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const struct tcs_cmd *cmd, u32 n)
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{ return -ENODEV; }
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static inline int rpmh_write_async(const struct device *dev,
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enum rpmh_state state,
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const struct tcs_cmd *cmd, u32 n)
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{ return -ENODEV; }
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static inline int rpmh_flush(const struct device *dev)
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{ return -ENODEV; }
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static inline int rpmh_invalidate(const struct device *dev)
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{ return -ENODEV; }
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#endif /* CONFIG_QCOM_RPMH */
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#endif /* __SOC_QCOM_RPMH_H__ */
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