Files
linux-nv-oot/drivers/gpu/drm/tegra/nvjpg.c
Jon Hunter fc7367debb drm/tegra: Fix crash when engine probe fails
If probing of the VIC engine fails then the following crash is observed
...

 tegra-vic 15340000.vic: devfreq_add_device: Unable to find governor for
  the device
 tegra-vic 15340000.vic: failed to init devfreq: -22
 tegra-vic: probe of 15340000.vic failed with error -22
 tegra-nvdec 15480000.nvdec: Adding to iommu group 45
 list_add corruption. prev->next should be next
  (ffff000094505f80), but was 0000000000000000. (prev=ffff000095245cf0).
 ------------[ cut here ]------------
 kernel BUG at lib/list_debug.c:26!
 Internal error: Oops - BUG: 00000000f2000800 [#1] SMP
 ...

 pc : __list_add_valid+0x80/0x84
 lr : __list_add_valid+0x80/0x84
 ...

 Call trace:
 __list_add_valid+0x80/0x84
 host1x_subdev_register+0x80/0x170 [host1x_next]
 __host1x_client_register+0xac/0x160 [host1x_next]
 nvdec_probe+0x1c8/0x58c [tegra_drm_next]
 platform_probe+0x6c/0xe0
 really_probe+0xc4/0x3dc
 __driver_probe_device+0x114/0x190
 driver_probe_device+0x44/0x114
 __driver_attach+0xcc/0x1f0
 bus_for_each_dev+0x78/0xd0
 driver_attach+0x28/0x30
 bus_add_driver+0xbc/0x220
 driver_register+0x70/0x120
 __platform_register_drivers+0x70/0x140
 host1x_drm_init+0x58/0x1000 [tegra_drm_next]
 do_one_initcall+0x48/0x2d0
 do_init_module+0x5c/0x270
 load_module+0xb08/0xc70
 __do_sys_init_module+0x1dc/0x214
 __arm64_sys_init_module+0x20/0x2c
 invoke_syscall.constprop.0+0x7c/0xd0
 el0_svc_common.constprop.0+0x140/0x150
 do_el0_svc+0x38/0xa0
 el0_svc+0x38/0x18c
 el0t_64_sync_handler+0xb4/0x130
 el0t_64_sync+0x17c/0x180
 Code: aa0103e2 910fa000 aa0403e1 941b9509 (d4210000)
 ---[ end trace f8f20f933fe03c7e ]---

The problem is that some of the engines are not cleaning up correctly on
probe failure and so fix this by adding the necessary calls clean up if
probe fails.

Bug 4303860

Change-Id: Ife1e0ce7429458d187422162a298cc140f0e3bc4
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2986790
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
2023-09-28 22:00:56 -07:00

760 lines
18 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021-2023, NVIDIA CORPORATION & AFFILIATES. All Rights Reserved.
*/
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/devfreq.h>
#include <linux/devfreq/tegra_wmark.h>
#include <linux/host1x-next.h>
#include <linux/interconnect.h>
#include <linux/iommu.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/version.h>
#include <soc/tegra/pmc.h>
#include "drm.h"
#include "falcon.h"
#include "util.h"
#define NVJPG_TFBIF_TRANSCFG 0x1444
#define NVJPG_TFBIF_ACTMON_ACTIVE_MASK 0x144c
#define NVJPG_TFBIF_ACTMON_ACTIVE_BORPS 0x1450
#define NVJPG_TFBIF_ACTMON_ACTIVE_WEIGHT 0x1454
#define NVJPG_AXI_RW_BANDWIDTH 512
#define NVJPG_TFBIF_ACTMON_ACTIVE_MASK_STARVED BIT(0)
#define NVJPG_TFBIF_ACTMON_ACTIVE_MASK_STALLED BIT(1)
#define NVJPG_TFBIF_ACTMON_ACTIVE_MASK_DELAYED BIT(2)
#define NVJPG_TFBIF_ACTMON_ACTIVE_BORPS_ACTIVE BIT(7)
struct nvjpg_config {
const char *firmware;
unsigned int version;
bool supports_sid;
unsigned int num_instances;
};
struct nvjpg {
struct falcon falcon;
void __iomem *regs;
struct tegra_drm_client client;
struct host1x_channel *channel;
struct device *dev;
struct clk *clk;
struct devfreq *devfreq;
struct devfreq_dev_profile *devfreq_profile;
struct icc_path *icc_write;
/* Platform configuration */
const struct nvjpg_config *config;
};
static inline struct nvjpg *to_nvjpg(struct tegra_drm_client *client)
{
return container_of(client, struct nvjpg, client);
}
static inline void nvjpg_writel(struct nvjpg *nvjpg, u32 value, unsigned int offset)
{
writel(value, nvjpg->regs + offset);
}
static int nvjpg_set_rate(struct nvjpg *nvjpg, unsigned long rate)
{
unsigned long dev_rate;
u32 emc_kbps;
int err;
err = clk_set_rate(nvjpg->clk, rate);
if (err < 0)
return err;
if (pm_runtime_suspended(nvjpg->dev))
return 0;
dev_rate = clk_get_rate(nvjpg->clk);
if (nvjpg->icc_write) {
emc_kbps = dev_rate * NVJPG_AXI_RW_BANDWIDTH / 1024;
err = icc_set_bw(nvjpg->icc_write, kbps_to_icc(emc_kbps), 0);
if (err)
dev_warn(nvjpg->dev, "failed to set icc bw: %d\n", err);
}
return 0;
}
static int nvjpg_boot(struct nvjpg *nvjpg)
{
int err;
if (nvjpg->config->supports_sid)
tegra_drm_program_iommu_regs(nvjpg->dev, nvjpg->regs, NVJPG_TFBIF_TRANSCFG);
err = falcon_boot(&nvjpg->falcon);
if (err < 0)
return err;
err = falcon_wait_idle(&nvjpg->falcon);
if (err < 0) {
dev_err(nvjpg->dev, "falcon boot timed out\n");
return err;
}
return 0;
}
static void nvjpg_devfreq_update_wmark_threshold(struct devfreq *devfreq,
struct devfreq_tegra_wmark_config *cfg)
{
struct nvjpg *nvjpg = dev_get_drvdata(devfreq->dev.parent);
struct host1x_client *client = &nvjpg->client.base;
host1x_actmon_update_active_wmark(client,
cfg->avg_upper_wmark,
cfg->avg_lower_wmark,
cfg->consec_upper_wmark,
cfg->consec_lower_wmark,
cfg->upper_wmark_enabled,
cfg->lower_wmark_enabled);
}
static int nvjpg_devfreq_target(struct device *dev, unsigned long *freq, u32 flags)
{
struct nvjpg *nvjpg = dev_get_drvdata(dev);
int err;
err = nvjpg_set_rate(nvjpg, *freq);
if (err < 0) {
dev_err(dev, "failed to set clock rate\n");
return err;
}
*freq = clk_get_rate(nvjpg->clk);
return 0;
}
static int nvjpg_devfreq_get_dev_status(struct device *dev, struct devfreq_dev_status *stat)
{
struct nvjpg *nvjpg = dev_get_drvdata(dev);
struct host1x_client *client = &nvjpg->client.base;
unsigned long usage;
/* Update load information */
host1x_actmon_read_active_norm(client, &usage);
stat->total_time = 1;
stat->busy_time = usage;
/* Update device frequency */
stat->current_frequency = clk_get_rate(nvjpg->clk);
return 0;
}
static int nvjpg_devfreq_get_cur_freq(struct device *dev, unsigned long *freq)
{
struct nvjpg *nvjpg = dev_get_drvdata(dev);
*freq = clk_get_rate(nvjpg->clk);
return 0;
}
static int nvjpg_devfreq_init(struct nvjpg *nvjpg)
{
unsigned long max_rate = clk_round_rate(nvjpg->clk, ULONG_MAX);
unsigned long min_rate = clk_round_rate(nvjpg->clk, 0);
unsigned long margin = clk_round_rate(nvjpg->clk, min_rate + 1) - min_rate;
unsigned long rate = min_rate;
struct devfreq_tegra_wmark_data *data;
struct devfreq_dev_profile *devfreq_profile;
struct devfreq *devfreq;
while (rate <= max_rate) {
dev_pm_opp_add(nvjpg->dev, rate, 0);
rate += margin;
}
data = devm_kzalloc(nvjpg->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->event = DEVFREQ_TEGRA_AVG_WMARK_BELOW;
data->update_wmark_threshold = nvjpg_devfreq_update_wmark_threshold;
devfreq_profile = devm_kzalloc(nvjpg->dev, sizeof(*devfreq_profile), GFP_KERNEL);
if (!devfreq_profile)
return -ENOMEM;
devfreq_profile->target = nvjpg_devfreq_target;
devfreq_profile->get_dev_status = nvjpg_devfreq_get_dev_status;
devfreq_profile->get_cur_freq = nvjpg_devfreq_get_cur_freq;
devfreq_profile->initial_freq = max_rate;
devfreq_profile->polling_ms = 100;
devfreq = devm_devfreq_add_device(nvjpg->dev,
devfreq_profile,
DEVFREQ_GOV_USERSPACE,
data);
if (IS_ERR(devfreq))
return PTR_ERR(devfreq);
nvjpg->devfreq = devfreq;
return 0;
}
static void nvjpg_devfreq_deinit(struct nvjpg *nvjpg)
{
if (!nvjpg->devfreq)
return;
devm_devfreq_remove_device(nvjpg->dev, nvjpg->devfreq);
nvjpg->devfreq = NULL;
}
static int nvjpg_init(struct host1x_client *client)
{
struct tegra_drm_client *drm = host1x_to_drm_client(client);
struct drm_device *dev = dev_get_drvdata(client->host);
struct tegra_drm *tegra = dev->dev_private;
struct nvjpg *nvjpg = to_nvjpg(drm);
int err;
err = host1x_client_iommu_attach(client);
if (err < 0 && err != -ENODEV) {
dev_err(nvjpg->dev, "failed to attach to domain: %d\n", err);
return err;
}
nvjpg->channel = host1x_channel_request(client);
if (!nvjpg->channel) {
err = -ENOMEM;
goto detach;
}
client->syncpts[0] = host1x_syncpt_request(client, 0);
if (!client->syncpts[0]) {
err = -ENOMEM;
goto free_channel;
}
err = tegra_drm_register_client(tegra, drm);
if (err < 0)
goto free_syncpt;
/*
* Inherit the DMA parameters (such as maximum segment size) from the
* parent host1x device.
*/
client->dev->dma_parms = client->host->dma_parms;
return 0;
free_syncpt:
host1x_syncpt_put(client->syncpts[0]);
free_channel:
host1x_channel_put(nvjpg->channel);
detach:
host1x_client_iommu_detach(client);
return err;
}
static int nvjpg_exit(struct host1x_client *client)
{
struct tegra_drm_client *drm = host1x_to_drm_client(client);
struct drm_device *dev = dev_get_drvdata(client->host);
struct tegra_drm *tegra = dev->dev_private;
struct nvjpg *nvjpg = to_nvjpg(drm);
int err;
/* avoid a dangling pointer just in case this disappears */
client->dev->dma_parms = NULL;
err = tegra_drm_unregister_client(tegra, drm);
if (err < 0)
return err;
pm_runtime_dont_use_autosuspend(client->dev);
pm_runtime_force_suspend(client->dev);
host1x_syncpt_put(client->syncpts[0]);
host1x_channel_put(nvjpg->channel);
host1x_client_iommu_detach(client);
nvjpg->channel = NULL;
if (client->group) {
dma_unmap_single(nvjpg->dev, nvjpg->falcon.firmware.phys,
nvjpg->falcon.firmware.size, DMA_TO_DEVICE);
tegra_drm_free(tegra, nvjpg->falcon.firmware.size,
nvjpg->falcon.firmware.virt,
nvjpg->falcon.firmware.iova);
} else {
dma_free_coherent(nvjpg->dev, nvjpg->falcon.firmware.size,
nvjpg->falcon.firmware.virt,
nvjpg->falcon.firmware.iova);
}
return 0;
}
static unsigned long nvjpg_get_rate(struct host1x_client *client)
{
struct platform_device *pdev = to_platform_device(client->dev);
struct nvjpg *nvjpg = platform_get_drvdata(pdev);
return clk_get_rate(nvjpg->clk);
}
static void nvjpg_actmon_event(struct host1x_client *client,
enum host1x_actmon_wmark_event event)
{
struct platform_device *pdev = to_platform_device(client->dev);
struct nvjpg *nvjpg = platform_get_drvdata(pdev);
struct devfreq *df = nvjpg->devfreq;
struct devfreq_tegra_wmark_data *data;
if (!df)
return;
data = df->data;
switch (event) {
case HOST1X_ACTMON_AVG_WMARK_BELOW:
data->event = DEVFREQ_TEGRA_AVG_WMARK_BELOW;
break;
case HOST1X_ACTMON_AVG_WMARK_ABOVE:
data->event = DEVFREQ_TEGRA_AVG_WMARK_ABOVE;
break;
case HOST1X_ACTMON_CONSEC_WMARK_BELOW:
data->event = DEVFREQ_TEGRA_CONSEC_WMARK_BELOW;
break;
case HOST1X_ACTMON_CONSEC_WMARK_ABOVE:
data->event = DEVFREQ_TEGRA_CONSEC_WMARK_ABOVE;
break;
default:
return;
}
mutex_lock(&df->lock);
update_devfreq(df);
mutex_unlock(&df->lock);
}
static const struct host1x_client_ops nvjpg_client_ops = {
.init = nvjpg_init,
.exit = nvjpg_exit,
.get_rate = nvjpg_get_rate,
.actmon_event = nvjpg_actmon_event,
};
static int nvjpg_load_firmware(struct nvjpg *nvjpg)
{
struct host1x_client *client = &nvjpg->client.base;
struct tegra_drm *tegra = nvjpg->client.drm;
dma_addr_t iova;
size_t size;
void *virt;
int err;
if (nvjpg->falcon.firmware.virt)
return 0;
err = falcon_read_firmware(&nvjpg->falcon, nvjpg->config->firmware);
if (err < 0)
return err;
size = nvjpg->falcon.firmware.size;
if (!client->group) {
virt = dma_alloc_coherent(nvjpg->dev, size, &iova, GFP_KERNEL);
err = dma_mapping_error(nvjpg->dev, iova);
if (err < 0)
return err;
} else {
virt = tegra_drm_alloc(tegra, size, &iova);
}
nvjpg->falcon.firmware.virt = virt;
nvjpg->falcon.firmware.iova = iova;
err = falcon_load_firmware(&nvjpg->falcon);
if (err < 0)
goto cleanup;
/*
* In this case we have received an IOVA from the shared domain, so we
* need to make sure to get the physical address so that the DMA API
* knows what memory pages to flush the cache for.
*/
if (client->group) {
dma_addr_t phys;
phys = dma_map_single(nvjpg->dev, virt, size, DMA_TO_DEVICE);
err = dma_mapping_error(nvjpg->dev, phys);
if (err < 0)
goto cleanup;
nvjpg->falcon.firmware.phys = phys;
}
return 0;
cleanup:
if (!client->group)
dma_free_coherent(nvjpg->dev, size, virt, iova);
else
tegra_drm_free(tegra, size, virt, iova);
return err;
}
static void nvjpg_actmon_reg_init(struct nvjpg *nvjpg)
{
nvjpg_writel(nvjpg,
NVJPG_TFBIF_ACTMON_ACTIVE_MASK_STARVED |
NVJPG_TFBIF_ACTMON_ACTIVE_MASK_STALLED |
NVJPG_TFBIF_ACTMON_ACTIVE_MASK_DELAYED,
NVJPG_TFBIF_ACTMON_ACTIVE_MASK);
nvjpg_writel(nvjpg,
NVJPG_TFBIF_ACTMON_ACTIVE_BORPS_ACTIVE,
NVJPG_TFBIF_ACTMON_ACTIVE_BORPS);
}
static void nvjpg_count_weight_init(struct nvjpg *nvjpg, unsigned long rate)
{
struct host1x_client *client = &nvjpg->client.base;
u32 weight = 0;
host1x_actmon_update_client_rate(client, rate, &weight);
if (weight)
nvjpg_writel(nvjpg, weight, NVJPG_TFBIF_ACTMON_ACTIVE_WEIGHT);
}
static __maybe_unused int nvjpg_runtime_resume(struct device *dev)
{
struct nvjpg *nvjpg = dev_get_drvdata(dev);
int err;
err = clk_prepare_enable(nvjpg->clk);
if (err < 0)
return err;
usleep_range(10, 20);
err = nvjpg_load_firmware(nvjpg);
if (err < 0)
goto disable;
err = nvjpg_boot(nvjpg);
if (err < 0)
goto disable;
/* Forcely set frequency as Fmax when device is resumed back */
nvjpg->devfreq->resume_freq = nvjpg->devfreq->scaling_max_freq;
err = devfreq_resume_device(nvjpg->devfreq);
if (err < 0)
goto disable;
nvjpg_actmon_reg_init(nvjpg);
nvjpg_count_weight_init(nvjpg, nvjpg->devfreq->scaling_max_freq);
host1x_actmon_enable(&nvjpg->client.base);
return 0;
disable:
clk_disable_unprepare(nvjpg->clk);
return err;
}
static __maybe_unused int nvjpg_runtime_suspend(struct device *dev)
{
struct nvjpg *nvjpg = dev_get_drvdata(dev);
int err;
err = devfreq_suspend_device(nvjpg->devfreq);
if (err < 0)
return err;
if (nvjpg->icc_write) {
err = icc_set_bw(nvjpg->icc_write, 0, 0);
if (err) {
dev_warn(nvjpg->dev, "failed to set icc bw: %d\n", err);
goto devfreq_resume;
}
}
clk_disable_unprepare(nvjpg->clk);
host1x_channel_stop(nvjpg->channel);
host1x_actmon_disable(&nvjpg->client.base);
return 0;
devfreq_resume:
devfreq_resume_device(nvjpg->devfreq);
return err;
}
static int nvjpg_open_channel(struct tegra_drm_client *client,
struct tegra_drm_context *context)
{
struct nvjpg *nvjpg = to_nvjpg(client);
int err;
err = pm_runtime_get_sync(nvjpg->dev);
if (err < 0) {
pm_runtime_put(nvjpg->dev);
return err;
}
context->channel = host1x_channel_get(nvjpg->channel);
if (!context->channel) {
pm_runtime_put(nvjpg->dev);
return -ENOMEM;
}
return 0;
}
static void nvjpg_close_channel(struct tegra_drm_context *context)
{
struct nvjpg *nvjpg = to_nvjpg(context->client);
host1x_channel_put(context->channel);
pm_runtime_put(nvjpg->dev);
}
static int nvjpg_can_use_memory_ctx(struct tegra_drm_client *client, bool *supported)
{
*supported = true;
return 0;
}
static const struct tegra_drm_client_ops nvjpg_ops = {
.open_channel = nvjpg_open_channel,
.close_channel = nvjpg_close_channel,
.submit = tegra_drm_submit,
.get_streamid_offset = tegra_drm_get_streamid_offset_thi,
.can_use_memory_ctx = nvjpg_can_use_memory_ctx,
};
#define NVIDIA_TEGRA_210_NVJPG_FIRMWARE "nvidia/tegra210/nvjpg.bin"
static const struct nvjpg_config nvjpg_t210_config = {
.firmware = NVIDIA_TEGRA_210_NVJPG_FIRMWARE,
.version = 0x21,
.supports_sid = false,
.num_instances = 1,
};
#define NVIDIA_TEGRA_186_NVJPG_FIRMWARE "nvidia/tegra186/nvjpg.bin"
static const struct nvjpg_config nvjpg_t186_config = {
.firmware = NVIDIA_TEGRA_186_NVJPG_FIRMWARE,
.version = 0x18,
.supports_sid = true,
.num_instances = 1,
};
#define NVIDIA_TEGRA_194_NVJPG_FIRMWARE "nvidia/tegra194/nvjpg.bin"
static const struct nvjpg_config nvjpg_t194_config = {
.firmware = NVIDIA_TEGRA_194_NVJPG_FIRMWARE,
.version = 0x19,
.supports_sid = true,
.num_instances = 1,
};
#define NVIDIA_TEGRA_234_NVJPG_FIRMWARE "nvidia/tegra234/nvjpg.bin"
static const struct nvjpg_config nvjpg_t234_config = {
.firmware = NVIDIA_TEGRA_234_NVJPG_FIRMWARE,
.version = 0x23,
.supports_sid = true,
.num_instances = 2,
};
static const struct of_device_id tegra_nvjpg_of_match[] = {
{ .compatible = "nvidia,tegra210-nvjpg", .data = &nvjpg_t210_config },
{ .compatible = "nvidia,tegra186-nvjpg", .data = &nvjpg_t186_config },
{ .compatible = "nvidia,tegra194-nvjpg", .data = &nvjpg_t194_config },
{ .compatible = "nvidia,tegra234-nvjpg", .data = &nvjpg_t234_config },
{ },
};
MODULE_DEVICE_TABLE(of, tegra_nvjpg_of_match);
static int nvjpg_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct host1x_syncpt **syncpts;
struct nvjpg *nvjpg;
u32 host_class;
int err;
/* inherit DMA mask from host1x parent */
err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask);
if (err < 0) {
dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err);
return err;
}
nvjpg = devm_kzalloc(dev, sizeof(*nvjpg), GFP_KERNEL);
if (!nvjpg)
return -ENOMEM;
nvjpg->config = of_device_get_match_data(dev);
syncpts = devm_kzalloc(dev, sizeof(*syncpts), GFP_KERNEL);
if (!syncpts)
return -ENOMEM;
nvjpg->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
if (IS_ERR(nvjpg->regs))
return PTR_ERR(nvjpg->regs);
nvjpg->clk = devm_clk_get(dev, NULL);
if (IS_ERR(nvjpg->clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
return PTR_ERR(nvjpg->clk);
}
err = of_property_read_u32(dev->of_node, "nvidia,host1x-class",
&host_class);
if (err < 0)
host_class = HOST1X_CLASS_NVJPG;
nvjpg->falcon.dev = dev;
nvjpg->falcon.regs = nvjpg->regs;
err = falcon_init(&nvjpg->falcon);
if (err < 0)
return err;
nvjpg->icc_write = devm_of_icc_get(dev, "write");
if (IS_ERR(nvjpg->icc_write)) {
dev_err(&pdev->dev, "failed to get icc write handle\n");
return PTR_ERR(nvjpg->icc_write);
}
platform_set_drvdata(pdev, nvjpg);
INIT_LIST_HEAD(&nvjpg->client.base.list);
nvjpg->client.base.ops = &nvjpg_client_ops;
nvjpg->client.base.dev = dev;
nvjpg->client.base.class = host_class;
nvjpg->client.base.syncpts = syncpts;
nvjpg->client.base.num_syncpts = 1;
nvjpg->dev = dev;
INIT_LIST_HEAD(&nvjpg->client.list);
nvjpg->client.version = nvjpg->config->version;
nvjpg->client.ops = &nvjpg_ops;
err = host1x_client_register(&nvjpg->client.base);
if (err < 0) {
dev_err(dev, "failed to register host1x client: %d\n", err);
goto exit_falcon;
}
err = host1x_actmon_register(&nvjpg->client.base);
if (err < 0)
dev_info(&pdev->dev, "failed to register host1x actmon: %d\n", err);
/* Set default clock rate for nvjpg */
err = clk_set_rate(nvjpg->clk, ULONG_MAX);
if (err < 0) {
dev_err(&pdev->dev, "failed to set clock rate\n");
goto exit_actmon;
}
err = nvjpg_devfreq_init(nvjpg);
if (err < 0) {
dev_err(&pdev->dev, "failed to init devfreq: %d\n", err);
goto exit_actmon;
}
pm_runtime_enable(dev);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, 500);
return 0;
exit_actmon:
host1x_actmon_unregister(&nvjpg->client.base);
host1x_client_unregister(&nvjpg->client.base);
exit_falcon:
falcon_exit(&nvjpg->falcon);
return err;
}
static int nvjpg_remove(struct platform_device *pdev)
{
struct nvjpg *nvjpg = platform_get_drvdata(pdev);
pm_runtime_disable(&pdev->dev);
nvjpg_devfreq_deinit(nvjpg);
host1x_actmon_unregister(&nvjpg->client.base);
host1x_client_unregister(&nvjpg->client.base);
falcon_exit(&nvjpg->falcon);
return 0;
}
static const struct dev_pm_ops nvjpg_pm_ops = {
SET_RUNTIME_PM_OPS(nvjpg_runtime_suspend, nvjpg_runtime_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
struct platform_driver tegra_nvjpg_driver = {
.driver = {
.name = "tegra-nvjpg",
.of_match_table = tegra_nvjpg_of_match,
.pm = &nvjpg_pm_ops
},
.probe = nvjpg_probe,
.remove = nvjpg_remove,
};
#if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)
MODULE_FIRMWARE(NVIDIA_TEGRA_210_NVJPG_FIRMWARE);
#endif
#if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC)
MODULE_FIRMWARE(NVIDIA_TEGRA_186_NVJPG_FIRMWARE);
#endif
#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC)
MODULE_FIRMWARE(NVIDIA_TEGRA_194_NVJPG_FIRMWARE);
#endif
#if IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
MODULE_FIRMWARE(NVIDIA_TEGRA_234_NVJPG_FIRMWARE);
#endif