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remoteproc: kill IPA notify code

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The IPA code now uses the generic remoteproc SSR notification
mechanism.  This makes the original IPA notification code unused
and unnecessary, so get rid of it.

This is effectively a revert of commit d7f5f3c89c ("remoteproc:
add IPA notification to q6v5 driver").

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200724181142.13581-3-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Alex Elder 2020-07-24 13:11:42 -05:00 committed by Bjorn Andersson
parent 30eb3fbee3
commit 2f3ee5e481
5 changed files with 0 additions and 210 deletions
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4
drivers/remoteproc/Kconfig
View File

@ -154,7 +154,6 @@ config QCOM_Q6V5_MSS
select QCOM_MDT_LOADER
select QCOM_PIL_INFO
select QCOM_Q6V5_COMMON
select QCOM_Q6V5_IPA_NOTIFY
select QCOM_RPROC_COMMON
select QCOM_SCM
help
@ -196,9 +195,6 @@ config QCOM_Q6V5_WCSS
Say y here to support the Qualcomm Peripheral Image Loader for the
Hexagon V5 based WCSS remote processors.
config QCOM_Q6V5_IPA_NOTIFY
tristate
config QCOM_SYSMON
tristate "Qualcomm sysmon driver"
depends on RPMSG

1
drivers/remoteproc/Makefile
View File

@ -24,7 +24,6 @@ obj-$(CONFIG_QCOM_Q6V5_ADSP) += qcom_q6v5_adsp.o
obj-$(CONFIG_QCOM_Q6V5_MSS) += qcom_q6v5_mss.o
obj-$(CONFIG_QCOM_Q6V5_PAS) += qcom_q6v5_pas.o
obj-$(CONFIG_QCOM_Q6V5_WCSS) += qcom_q6v5_wcss.o
obj-$(CONFIG_QCOM_Q6V5_IPA_NOTIFY) += qcom_q6v5_ipa_notify.o
obj-$(CONFIG_QCOM_SYSMON) += qcom_sysmon.o
obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o
qcom_wcnss_pil-y += qcom_wcnss.o

85
drivers/remoteproc/qcom_q6v5_ipa_notify.c
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@ -1,85 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Qualcomm IPA notification subdev support
*
* Copyright (C) 2019 Linaro Ltd.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/remoteproc.h>
#include <linux/remoteproc/qcom_q6v5_ipa_notify.h>
static void
ipa_notify_common(struct rproc_subdev *subdev, enum qcom_rproc_event event)
{
struct qcom_rproc_ipa_notify *ipa_notify;
qcom_ipa_notify_t notify;
ipa_notify = container_of(subdev, struct qcom_rproc_ipa_notify, subdev);
notify = ipa_notify->notify;
if (notify)
notify(ipa_notify->data, event);
}
static int ipa_notify_prepare(struct rproc_subdev *subdev)
{
ipa_notify_common(subdev, MODEM_STARTING);
return 0;
}
static int ipa_notify_start(struct rproc_subdev *subdev)
{
ipa_notify_common(subdev, MODEM_RUNNING);
return 0;
}
static void ipa_notify_stop(struct rproc_subdev *subdev, bool crashed)
{
ipa_notify_common(subdev, crashed ? MODEM_CRASHED : MODEM_STOPPING);
}
static void ipa_notify_unprepare(struct rproc_subdev *subdev)
{
ipa_notify_common(subdev, MODEM_OFFLINE);
}
static void ipa_notify_removing(struct rproc_subdev *subdev)
{
ipa_notify_common(subdev, MODEM_REMOVING);
}
/* Register the IPA notification subdevice with the Q6V5 MSS remoteproc */
void qcom_add_ipa_notify_subdev(struct rproc *rproc,
struct qcom_rproc_ipa_notify *ipa_notify)
{
ipa_notify->notify = NULL;
ipa_notify->data = NULL;
ipa_notify->subdev.prepare = ipa_notify_prepare;
ipa_notify->subdev.start = ipa_notify_start;
ipa_notify->subdev.stop = ipa_notify_stop;
ipa_notify->subdev.unprepare = ipa_notify_unprepare;
rproc_add_subdev(rproc, &ipa_notify->subdev);
}
EXPORT_SYMBOL_GPL(qcom_add_ipa_notify_subdev);
/* Remove the IPA notification subdevice */
void qcom_remove_ipa_notify_subdev(struct rproc *rproc,
struct qcom_rproc_ipa_notify *ipa_notify)
{
struct rproc_subdev *subdev = &ipa_notify->subdev;
ipa_notify_removing(subdev);
rproc_remove_subdev(rproc, subdev);
ipa_notify->notify = NULL; /* Make it obvious */
}
EXPORT_SYMBOL_GPL(qcom_remove_ipa_notify_subdev);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Qualcomm IPA notification remoteproc subdev");

38
drivers/remoteproc/qcom_q6v5_mss.c
View File

@ -23,7 +23,6 @@
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/remoteproc.h>
#include "linux/remoteproc/qcom_q6v5_ipa_notify.h"
#include <linux/reset.h>
#include <linux/soc/qcom/mdt_loader.h>
#include <linux/iopoll.h>
@ -197,7 +196,6 @@ struct q6v5 {
struct qcom_rproc_glink glink_subdev;
struct qcom_rproc_subdev smd_subdev;
struct qcom_rproc_ssr ssr_subdev;
struct qcom_rproc_ipa_notify ipa_notify_subdev;
struct qcom_sysmon *sysmon;
bool need_mem_protection;
bool has_alt_reset;
@ -1607,39 +1605,6 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
return 0;
}
#if IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY)
/* Register IPA notification function */
int qcom_register_ipa_notify(struct rproc *rproc, qcom_ipa_notify_t notify,
void *data)
{
struct qcom_rproc_ipa_notify *ipa_notify;
struct q6v5 *qproc = rproc->priv;
if (!notify)
return -EINVAL;
ipa_notify = &qproc->ipa_notify_subdev;
if (ipa_notify->notify)
return -EBUSY;
ipa_notify->notify = notify;
ipa_notify->data = data;
return 0;
}
EXPORT_SYMBOL_GPL(qcom_register_ipa_notify);
/* Deregister IPA notification function */
void qcom_deregister_ipa_notify(struct rproc *rproc)
{
struct q6v5 *qproc = rproc->priv;
qproc->ipa_notify_subdev.notify = NULL;
}
EXPORT_SYMBOL_GPL(qcom_deregister_ipa_notify);
#endif /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
static int q6v5_probe(struct platform_device *pdev)
{
const struct rproc_hexagon_res *desc;
@ -1766,7 +1731,6 @@ static int q6v5_probe(struct platform_device *pdev)
qcom_add_glink_subdev(rproc, &qproc->glink_subdev, "mpss");
qcom_add_smd_subdev(rproc, &qproc->smd_subdev);
qcom_add_ssr_subdev(rproc, &qproc->ssr_subdev, "mpss");
qcom_add_ipa_notify_subdev(rproc, &qproc->ipa_notify_subdev);
qproc->sysmon = qcom_add_sysmon_subdev(rproc, "modem", 0x12);
if (IS_ERR(qproc->sysmon)) {
ret = PTR_ERR(qproc->sysmon);
@ -1782,7 +1746,6 @@ static int q6v5_probe(struct platform_device *pdev)
remove_sysmon_subdev:
qcom_remove_sysmon_subdev(qproc->sysmon);
remove_subdevs:
qcom_remove_ipa_notify_subdev(qproc->rproc, &qproc->ipa_notify_subdev);
qcom_remove_ssr_subdev(rproc, &qproc->ssr_subdev);
qcom_remove_smd_subdev(rproc, &qproc->smd_subdev);
qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);
@ -1804,7 +1767,6 @@ static int q6v5_remove(struct platform_device *pdev)
rproc_del(rproc);
qcom_remove_sysmon_subdev(qproc->sysmon);
qcom_remove_ipa_notify_subdev(rproc, &qproc->ipa_notify_subdev);
qcom_remove_ssr_subdev(rproc, &qproc->ssr_subdev);
qcom_remove_smd_subdev(rproc, &qproc->smd_subdev);
qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);

82
include/linux/remoteproc/qcom_q6v5_ipa_notify.h
View File

@ -1,82 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2019 Linaro Ltd. */
#ifndef __QCOM_Q6V5_IPA_NOTIFY_H__
#define __QCOM_Q6V5_IPA_NOTIFY_H__
#if IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY)
#include <linux/remoteproc.h>
enum qcom_rproc_event {
MODEM_STARTING = 0, /* Modem is about to be started */
MODEM_RUNNING = 1, /* Startup complete; modem is operational */
MODEM_STOPPING = 2, /* Modem is about to shut down */
MODEM_CRASHED = 3, /* Modem has crashed (implies stopping) */
MODEM_OFFLINE = 4, /* Modem is now offline */
MODEM_REMOVING = 5, /* Modem is about to be removed */
};
typedef void (*qcom_ipa_notify_t)(void *data, enum qcom_rproc_event event);
struct qcom_rproc_ipa_notify {
struct rproc_subdev subdev;
qcom_ipa_notify_t notify;
void *data;
};
/**
* qcom_add_ipa_notify_subdev() - Register IPA notification subdevice
* @rproc: rproc handle
* @ipa_notify: IPA notification subdevice handle
*
* Register the @ipa_notify subdevice with the @rproc so modem events
* can be sent to IPA when they occur.
*
* This is defined in "qcom_q6v5_ipa_notify.c".
*/
void qcom_add_ipa_notify_subdev(struct rproc *rproc,
struct qcom_rproc_ipa_notify *ipa_notify);
/**
* qcom_remove_ipa_notify_subdev() - Remove IPA SSR subdevice
* @rproc: rproc handle
* @ipa_notify: IPA notification subdevice handle
*
* This is defined in "qcom_q6v5_ipa_notify.c".
*/
void qcom_remove_ipa_notify_subdev(struct rproc *rproc,
struct qcom_rproc_ipa_notify *ipa_notify);
/**
* qcom_register_ipa_notify() - Register IPA notification function
* @rproc: Remote processor handle
* @notify: Non-null IPA notification callback function pointer
* @data: Data supplied to IPA notification callback function
*
* @Return: 0 if successful, or a negative error code otherwise
*
* This is defined in "qcom_q6v5_mss.c".
*/
int qcom_register_ipa_notify(struct rproc *rproc, qcom_ipa_notify_t notify,
void *data);
/**
* qcom_deregister_ipa_notify() - Deregister IPA notification function
* @rproc: Remote processor handle
*
* This is defined in "qcom_q6v5_mss.c".
*/
void qcom_deregister_ipa_notify(struct rproc *rproc);
#else /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
struct qcom_rproc_ipa_notify { /* empty */ };
#define qcom_add_ipa_notify_subdev(rproc, ipa_notify) /* no-op */
#define qcom_remove_ipa_notify_subdev(rproc, ipa_notify) /* no-op */
#endif /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
#endif /* !__QCOM_Q6V5_IPA_NOTIFY_H__ */