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v5.15-rc1 + 1630420228-31075-2-git-send-email-deesin@codeaurora.org 

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Merge tag '1630420228-31075-2-git-send-email-deesin@codeaurora.org' into drivers-for-5.16
This commit is contained in:
Bjorn Andersson 2021-09-21 17:49:38 -05:00
parent 92dde3279d 8c75d585b9
commit 665783d887
2 changed files with 91 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
drivers/soc/qcom/qcom_aoss.c
View File

@ -8,10 +8,12 @@
#include <linux/io.h>
#include <linux/mailbox_client.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/thermal.h>
#include <linux/slab.h>
#include <linux/soc/qcom/qcom_aoss.h>
#define QMP_DESC_MAGIC 0x0
#define QMP_DESC_VERSION 0x4
@ -223,11 +225,14 @@ static bool qmp_message_empty(struct qmp *qmp)
*
* Return: 0 on success, negative errno on failure
*/
static int qmp_send(struct qmp *qmp, const void *data, size_t len)
int qmp_send(struct qmp *qmp, const void *data, size_t len)
{
long time_left;
int ret;
if (WARN_ON(IS_ERR_OR_NULL(qmp) || !data))
return -EINVAL;
if (WARN_ON(len + sizeof(u32) > qmp->size))
return -EINVAL;
@ -261,6 +266,7 @@ static int qmp_send(struct qmp *qmp, const void *data, size_t len)
return ret;
}
EXPORT_SYMBOL(qmp_send);
static int qmp_qdss_clk_prepare(struct clk_hw *hw)
{
@ -519,6 +525,51 @@ static void qmp_cooling_devices_remove(struct qmp *qmp)
thermal_cooling_device_unregister(qmp->cooling_devs[i].cdev);
}
/**
* qmp_get() - get a qmp handle from a device
* @dev: client device pointer
*
* Return: handle to qmp device on success, ERR_PTR() on failure
*/
struct qmp *qmp_get(struct device *dev)
{
struct platform_device *pdev;
struct device_node *np;
struct qmp *qmp;
if (!dev || !dev->of_node)
return ERR_PTR(-EINVAL);
np = of_parse_phandle(dev->of_node, "qcom,qmp", 0);
if (!np)
return ERR_PTR(-ENODEV);
pdev = of_find_device_by_node(np);
of_node_put(np);
if (!pdev)
return ERR_PTR(-EINVAL);
qmp = platform_get_drvdata(pdev);
return qmp ? qmp : ERR_PTR(-EPROBE_DEFER);
}
EXPORT_SYMBOL(qmp_get);
/**
* qmp_put() - release a qmp handle
* @qmp: qmp handle obtained from qmp_get()
*/
void qmp_put(struct qmp *qmp)
{
/*
* Match get_device() inside of_find_device_by_node() in
* qmp_get()
*/
if (!IS_ERR_OR_NULL(qmp))
put_device(qmp->dev);
}
EXPORT_SYMBOL(qmp_put);
static int qmp_probe(struct platform_device *pdev)
{
struct qmp *qmp;
@ -613,6 +664,7 @@ static struct platform_driver qmp_driver = {
.driver = {
.name = "qcom_aoss_qmp",
.of_match_table = qmp_dt_match,
.suppress_bind_attrs = true,
},
.probe = qmp_probe,
.remove = qmp_remove,

38
include/linux/soc/qcom/qcom_aoss.h Normal file
View File

@ -0,0 +1,38 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
*/
#ifndef __QCOM_AOSS_H__
#define __QCOM_AOSS_H__
#include <linux/err.h>
#include <linux/device.h>
struct qmp;
#if IS_ENABLED(CONFIG_QCOM_AOSS_QMP)
int qmp_send(struct qmp *qmp, const void *data, size_t len);
struct qmp *qmp_get(struct device *dev);
void qmp_put(struct qmp *qmp);
#else
static inline int qmp_send(struct qmp *qmp, const void *data, size_t len)
{
return -ENODEV;
}
static inline struct qmp *qmp_get(struct device *dev)
{
return ERR_PTR(-ENODEV);
}
static inline void qmp_put(struct qmp *qmp)
{
}
#endif
#endif