Re: [PATCH v4 07/15] soc: qcom: mdtloader: Switch to generic PAS TZ APIs

[Sumit Garg <sumit.garg@kernel.org>]

On Wed, Apr 29, 2026 at 07:12:08PM +0530, Mukesh Ojha wrote:
> On Mon, Apr 27, 2026 at 03:25:55PM +0530, Sumit Garg wrote:
> > From: Sumit Garg <sumit.garg@oss.qualcomm.com>
> > 
> > Switch mdtloader client driver over to generic PAS TZ APIs. Generic PAS
> > TZ service allows to support multiple TZ implementation backends like QTEE
> > based SCM PAS service, OP-TEE based PAS service and any further future TZ
> > backend service.
> > 
> > Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> > ---
> >  drivers/soc/qcom/mdt_loader.c       | 12 ++++++------
> >  include/linux/soc/qcom/mdt_loader.h |  6 +++---
> >  2 files changed, 9 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
> > index c004d444d698..fdde7eda538a 100644
> > --- a/drivers/soc/qcom/mdt_loader.c
> > +++ b/drivers/soc/qcom/mdt_loader.c
> > @@ -13,7 +13,7 @@
> >  #include <linux/firmware.h>
> >  #include <linux/kernel.h>
> >  #include <linux/module.h>
> > -#include <linux/firmware/qcom/qcom_scm.h>
> > +#include <linux/firmware/qcom/qcom_pas.h>
> >  #include <linux/sizes.h>
> >  #include <linux/slab.h>
> >  #include <linux/soc/qcom/mdt_loader.h>
> > @@ -229,7 +229,7 @@ EXPORT_SYMBOL_GPL(qcom_mdt_read_metadata);
> >  
> >  static int __qcom_mdt_pas_init(struct device *dev, const struct firmware *fw,
> >  			       const char *fw_name, int pas_id, phys_addr_t mem_phys,
> > -			       struct qcom_scm_pas_context *ctx)
> > +			       struct qcom_pas_context *ctx)
> >  {
> >  	const struct elf32_phdr *phdrs;
> >  	const struct elf32_phdr *phdr;
> > @@ -271,7 +271,7 @@ static int __qcom_mdt_pas_init(struct device *dev, const struct firmware *fw,
> >  		goto out;
> >  	}
> >  
> > -	ret = qcom_scm_pas_init_image(pas_id, metadata, metadata_len, ctx);
> > +	ret = qcom_pas_init_image(pas_id, metadata, metadata_len, ctx);
> >  	kfree(metadata);
> >  	if (ret) {
> >  		/* Invalid firmware metadata */
> > @@ -280,7 +280,7 @@ static int __qcom_mdt_pas_init(struct device *dev, const struct firmware *fw,
> >  	}
> >  
> >  	if (relocate) {
> > -		ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
> > +		ret = qcom_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
> >  		if (ret) {
> >  			/* Unable to set up relocation */
> >  			dev_err(dev, "error %d setting up firmware %s\n", ret, fw_name);
> > @@ -472,7 +472,7 @@ EXPORT_SYMBOL_GPL(qcom_mdt_load);
> >   * firmware segments (e.g., .bXX files). Authentication of the segments done
> >   * by a separate call.
> >   *
> > - * The PAS context must be initialized using qcom_scm_pas_context_init()
> > + * The PAS context must be initialized using qcom_pas_context_init()
> 
> Should devm_qcom_pas_context_alloc() now

Ack.

> 
> >   * prior to invoking this function.
> >   *
> >   * @ctx:        Pointer to the PAS (Peripheral Authentication Service) context
> > @@ -483,7 +483,7 @@ EXPORT_SYMBOL_GPL(qcom_mdt_load);
> >   *
> >   * Return: 0 on success or a negative error code on failure.
> >   */
> > -int qcom_mdt_pas_load(struct qcom_scm_pas_context *ctx, const struct firmware *fw,
> > +int qcom_mdt_pas_load(struct qcom_pas_context *ctx, const struct firmware *fw,
> >  		      const char *firmware, void *mem_region, phys_addr_t *reloc_base)
> >  {
> >  	int ret;
> > diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h
> > index 82372e0db0a1..142409555425 100644
> > --- a/include/linux/soc/qcom/mdt_loader.h
> > +++ b/include/linux/soc/qcom/mdt_loader.h
> > @@ -10,7 +10,7 @@
> >  
> >  struct device;
> >  struct firmware;
> > -struct qcom_scm_pas_context;
> > +struct qcom_pas_context;
> >  
> >  #if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
> >  
> > @@ -20,7 +20,7 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
> >  		  phys_addr_t mem_phys, size_t mem_size,
> >  		  phys_addr_t *reloc_base);
> >  
> > -int qcom_mdt_pas_load(struct qcom_scm_pas_context *ctx, const struct firmware *fw,
> > +int qcom_mdt_pas_load(struct qcom_pas_context *ctx, const struct firmware *fw,
> >  		      const char *firmware, void *mem_region, phys_addr_t *reloc_base);
> >  
> >  int qcom_mdt_load_no_init(struct device *dev, const struct firmware *fw,
> > @@ -45,7 +45,7 @@ static inline int qcom_mdt_load(struct device *dev, const struct firmware *fw,
> >  	return -ENODEV;
> >  }
> >  
> > -static inline int qcom_mdt_pas_load(struct qcom_scm_pas_context *ctx,
> > +static inline int qcom_mdt_pas_load(struct qcom_pas_context *ctx,
> >  				    const struct firmware *fw, const char *firmware,
> >  				    void *mem_region, phys_addr_t *reloc_base)
> >  {
> > -- 
> > 2.51.0
> > 
> 
> With above nit
> 
> Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>

Thanks.

-Sumit