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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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c25951eb75
fsl_mc_allocator_driver_exit() was added explicitly by commit1e8ac83b6c("bus: fsl-mc: add fsl_mc_allocator cleanup function") but was never used. Remove it. fsl_mc_portal_reset() was added in 2015 by commit197f4d6a4a("staging: fsl-mc: fsl-mc object allocator driver") but was never used. Remove it. fsl_mc_portal_reset() was the only caller of dpmcp_reset(). Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Acked-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/20241115152055.279732-1-linux@treblig.org Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
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/*
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* Copyright 2013-2016 Freescale Semiconductor Inc.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/fsl/mc.h>
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#include "fsl-mc-private.h"
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/**
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* dpmcp_open() - Open a control session for the specified object.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @dpmcp_id: DPMCP unique ID
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* @token: Returned token; use in subsequent API calls
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*
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* This function can be used to open a control session for an
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* already created object; an object may have been declared in
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* the DPL or by calling the dpmcp_create function.
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* This function returns a unique authentication token,
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* associated with the specific object ID and the specific MC
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* portal; this token must be used in all subsequent commands for
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* this specific object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpmcp_open(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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int dpmcp_id,
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u16 *token)
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{
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struct fsl_mc_command cmd = { 0 };
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struct dpmcp_cmd_open *cmd_params;
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
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cmd_flags, 0);
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cmd_params = (struct dpmcp_cmd_open *)cmd.params;
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cmd_params->dpmcp_id = cpu_to_le32(dpmcp_id);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*token = mc_cmd_hdr_read_token(&cmd);
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return err;
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}
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/**
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* dpmcp_close() - Close the control session of the object
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPMCP object
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*
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* After this function is called, no further operations are
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* allowed on the object without opening a new control session.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpmcp_close(struct fsl_mc_io *mc_io,
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u32 cmd_flags,
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u16 token)
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{
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struct fsl_mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE,
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cmd_flags, token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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