> -----Original Message-----
> From: Andrei Botila <andrei.bot...@nxp.com>
> Sent: Monday, January 27, 2020 1:16 PM
>
> Add a new api that returns Management Complex firmware version
> and make the required structure public. The api's first user will be
> the caam driver for setting prediction resistance bits.
>
> Signed-off-by: Andrei Botila <andrei.bot...@nxp.com>
Acked-by: Laurentiu Tudor <laurentiu.tu...@nxp.com>
> ---
> drivers/bus/fsl-mc/fsl-mc-bus.c | 33 +++++++++++++++++----------------
> include/linux/fsl/mc.h | 16 ++++++++++++++++
> 2 files changed, 33 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-
> bus.c
> index a07cc19becdb..330c76181604 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-bus.c
> +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
> @@ -26,6 +26,8 @@
> */
> #define FSL_MC_DEFAULT_DMA_MASK (~0ULL)
>
> +static struct fsl_mc_version mc_version;
> +
> /**
> * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
> * @root_mc_bus_dev: fsl-mc device representing the root DPRC
> @@ -54,20 +56,6 @@ struct fsl_mc_addr_translation_range {
> phys_addr_t start_phys_addr;
> };
>
> -/**
> - * struct mc_version
> - * @major: Major version number: incremented on API compatibility changes
> - * @minor: Minor version number: incremented on API additions (that are
> - * backward compatible); reset when major version is incremented
> - * @revision: Internal revision number: incremented on implementation
> changes
> - * and/or bug fixes that have no impact on API
> - */
> -struct mc_version {
> - u32 major;
> - u32 minor;
> - u32 revision;
> -};
> -
> /**
> * fsl_mc_bus_match - device to driver matching callback
> * @dev: the fsl-mc device to match against
> @@ -338,7 +326,7 @@ EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
> */
> static int mc_get_version(struct fsl_mc_io *mc_io,
> u32 cmd_flags,
> - struct mc_version *mc_ver_info)
> + struct fsl_mc_version *mc_ver_info)
> {
> struct fsl_mc_command cmd = { 0 };
> struct dpmng_rsp_get_version *rsp_params;
> @@ -363,6 +351,20 @@ static int mc_get_version(struct fsl_mc_io *mc_io,
> return 0;
> }
>
> +/**
> + * fsl_mc_get_version - function to retrieve the MC f/w version
> information
> + *
> + * Return: mc version when called after fsl-mc-bus probe; NULL otherwise.
> + */
> +struct fsl_mc_version *fsl_mc_get_version(void)
> +{
> + if (mc_version.major)
> + return &mc_version;
> +
> + return NULL;
> +}
> +EXPORT_SYMBOL_GPL(fsl_mc_get_version);
> +
> /**
> * fsl_mc_get_root_dprc - function to traverse to the root dprc
> */
> @@ -862,7 +864,6 @@ static int fsl_mc_bus_probe(struct platform_device
> *pdev)
> int container_id;
> phys_addr_t mc_portal_phys_addr;
> u32 mc_portal_size;
> - struct mc_version mc_version;
> struct resource res;
>
> mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
> diff --git a/include/linux/fsl/mc.h b/include/linux/fsl/mc.h
> index 54d9436600c7..2b5f8366dbe1 100644
> --- a/include/linux/fsl/mc.h
> +++ b/include/linux/fsl/mc.h
> @@ -381,6 +381,22 @@ int __must_check __fsl_mc_driver_register(struct
> fsl_mc_driver *fsl_mc_driver,
>
> void fsl_mc_driver_unregister(struct fsl_mc_driver *driver);
>
> +/**
> + * struct fsl_mc_version
> + * @major: Major version number: incremented on API compatibility changes
> + * @minor: Minor version number: incremented on API additions (that are
> + * backward compatible); reset when major version is incremented
> + * @revision: Internal revision number: incremented on implementation
> changes
> + * and/or bug fixes that have no impact on API
> + */
> +struct fsl_mc_version {
> + u32 major;
> + u32 minor;
> + u32 revision;
> +};
> +
> +struct fsl_mc_version *fsl_mc_get_version(void);
> +
> int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
> u16 mc_io_flags,
> struct fsl_mc_io **new_mc_io);
> --
> 2.17.1
