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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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3b661ca549
LKP found a random config which failed to build because IO accessors were not defined: In file included from drivers/i3c/master.c:21: drivers/i3c/internals.h: In function 'i3c_writel_fifo': >> drivers/i3c/internals.h:35:9: error: implicit declaration of function 'writesl' [-Werror=implicit-function-declaration] Add the proper header to where the IO accessors are used. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202507150208.BZDzzJ5E-lkp@intel.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250717120046.9022-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2018 Cadence Design Systems Inc.
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*
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* Author: Boris Brezillon <boris.brezillon@bootlin.com>
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*/
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#ifndef I3C_INTERNALS_H
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#define I3C_INTERNALS_H
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#include <linux/i3c/master.h>
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#include <linux/io.h>
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void i3c_bus_normaluse_lock(struct i3c_bus *bus);
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void i3c_bus_normaluse_unlock(struct i3c_bus *bus);
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int i3c_dev_setdasa_locked(struct i3c_dev_desc *dev);
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int i3c_dev_do_priv_xfers_locked(struct i3c_dev_desc *dev,
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struct i3c_priv_xfer *xfers,
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int nxfers);
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int i3c_dev_disable_ibi_locked(struct i3c_dev_desc *dev);
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int i3c_dev_enable_ibi_locked(struct i3c_dev_desc *dev);
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int i3c_dev_request_ibi_locked(struct i3c_dev_desc *dev,
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const struct i3c_ibi_setup *req);
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void i3c_dev_free_ibi_locked(struct i3c_dev_desc *dev);
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/**
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* i3c_writel_fifo - Write data buffer to 32bit FIFO
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* @addr: FIFO Address to write to
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* @buf: Pointer to the data bytes to write
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* @nbytes: Number of bytes to write
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*/
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static inline void i3c_writel_fifo(void __iomem *addr, const void *buf,
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int nbytes)
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{
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writesl(addr, buf, nbytes / 4);
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if (nbytes & 3) {
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u32 tmp = 0;
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memcpy(&tmp, buf + (nbytes & ~3), nbytes & 3);
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writel(tmp, addr);
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}
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}
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/**
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* i3c_readl_fifo - Read data buffer from 32bit FIFO
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* @addr: FIFO Address to read from
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* @buf: Pointer to the buffer to store read bytes
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* @nbytes: Number of bytes to read
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*/
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static inline void i3c_readl_fifo(const void __iomem *addr, void *buf,
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int nbytes)
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{
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readsl(addr, buf, nbytes / 4);
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if (nbytes & 3) {
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u32 tmp;
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tmp = readl(addr);
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memcpy(buf + (nbytes & ~3), &tmp, nbytes & 3);
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}
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}
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#endif /* I3C_INTERNAL_H */
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