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firmware: tegra: Changes for v7.1-rc1

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This introduces a new API for the BPMP to be pass along a specifier from
 DT when getting a reference from a phandle. This is used to reference
 specific instances of the PCI controller on Tegra264. The ABI header for
 BPMP is updated to the latest version and BPMP APIs now use the more
 intuitive ENODEV instead of the non SUSV4 ENOTSUPP error code for stub
 implementations.
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Merge tag 'tegra-for-7.1-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers

firmware: tegra: Changes for v7.1-rc1

This introduces a new API for the BPMP to be pass along a specifier from
DT when getting a reference from a phandle. This is used to reference
specific instances of the PCI controller on Tegra264. The ABI header for
BPMP is updated to the latest version and BPMP APIs now use the more
intuitive ENODEV instead of the non SUSV4 ENOTSUPP error code for stub
implementations.

* tag 'tegra-for-7.1-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: bpmp: Use ENODEV instead of ENOTSUPP
  firmware: tegra: bpmp: Add tegra_bpmp_get_with_id() function
  soc/tegra: Update BPMP ABI header
  firmware: tegra: bpmp: Rename Tegra239 to Tegra238

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2026-04-02 23:13:02 +02:00
commit f1aa30a4b2
3 changed files with 3727 additions and 904 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/firmware/tegra/bpmp.c
View File

@ -32,6 +32,40 @@ channel_to_ops(struct tegra_bpmp_channel *channel)
return bpmp->soc->ops;
}
struct tegra_bpmp *tegra_bpmp_get_with_id(struct device *dev, unsigned int *id)
{
struct platform_device *pdev;
struct of_phandle_args args;
struct tegra_bpmp *bpmp;
int err;
err = __of_parse_phandle_with_args(dev->of_node, "nvidia,bpmp", NULL,
1, 0, &args);
if (err < 0)
return ERR_PTR(err);
pdev = of_find_device_by_node(args.np);
if (!pdev) {
bpmp = ERR_PTR(-ENODEV);
goto put;
}
bpmp = platform_get_drvdata(pdev);
if (!bpmp) {
bpmp = ERR_PTR(-EPROBE_DEFER);
put_device(&pdev->dev);
goto put;
}
if (id)
*id = args.args[0];
put:
of_node_put(args.np);
return bpmp;
}
EXPORT_SYMBOL_GPL(tegra_bpmp_get_with_id);
struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
{
struct platform_device *pdev;

4577
include/soc/tegra/bpmp-abi.h
View File

File diff suppressed because it is too large Load Diff

20
include/soc/tegra/bpmp.h
View File

@ -127,6 +127,7 @@ struct tegra_bpmp_message {
#if IS_ENABLED(CONFIG_TEGRA_BPMP)
struct tegra_bpmp *tegra_bpmp_get(struct device *dev);
struct tegra_bpmp *tegra_bpmp_get_with_id(struct device *dev, unsigned int *id);
void tegra_bpmp_put(struct tegra_bpmp *bpmp);
int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
struct tegra_bpmp_message *msg);
@ -143,21 +144,31 @@ bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
#else
static inline struct tegra_bpmp *tegra_bpmp_get(struct device *dev)
{
return ERR_PTR(-ENOTSUPP);
return ERR_PTR(-ENODEV);
}
static inline struct tegra_bpmp *tegra_bpmp_get_with_id(struct device *dev,
unsigned int *id)
{
return ERR_PTR(-ENODEV);
}
static inline void tegra_bpmp_put(struct tegra_bpmp *bpmp)
{
}
static inline int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp,
struct tegra_bpmp_message *msg)
{
return -ENOTSUPP;
return -ENODEV;
}
static inline int tegra_bpmp_transfer(struct tegra_bpmp *bpmp,
struct tegra_bpmp_message *msg)
{
return -ENOTSUPP;
return -ENODEV;
}
static inline void tegra_bpmp_mrq_return(struct tegra_bpmp_channel *channel,
int code, const void *data,
size_t size)
@ -169,8 +180,9 @@ static inline int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp,
tegra_bpmp_mrq_handler_t handler,
void *data)
{
return -ENOTSUPP;
return -ENODEV;
}
static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
unsigned int mrq, void *data)
{