mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-30 11:41:38 -04:00
Qualcomm ARM Based Driver Updates for v4.15
* Add SCM firmware APIs for download mode and secure IO service * Add SMEM support for cached entries * Add SMEM support for global partition, dynamic item limit, and more hosts -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZ5QSAAAoJEFKiBbHx2RXVo80QAIBfwxvORm9XVXasPZG+u+Yy 8Gtq8m/e9Z5V6KIsYAczdy7tEV0vVmyDBdG5q/rkyHKvi8t9dbRROSxlsFb7INkY LOJ4X+9YaBAx7ikxn6TAoxiXKITcTIVpfKbCzXpAm0Q3AhtUI65nsGsFBWTPL7O5 H8uzNQcn8196PPfY1/M/c+cwsPDa4GVPFEyT86mg+6XNljziY3Ky+6BZEdv+Vri/ xA8ACb3huCqbpDjVVsTYdP/FvOQYDSHfTzEXwfXvW1IiKpiZ/gJG/OvUalUL28gf McRfpG+Cb164w6dHeysZjE3TJI6TaUOzrBU7CkVFj9z3h+DIqneLQShKwwykSG4h 7XL+g/+rDEftl9N0eMDYNRW7K+bMdqmqfZODMBbEWwg0hhXkghNTPENII0MRx7Al /HxbyU3q66bXPWMXir5QVr81QexUn5h9PcVRq1wJ8Gx9VqL2dL+s3B4ffMViPTfc LCVawvGM2uBao4oeUsDgrqIBz7e7ctYaJk6z8T3wG1GrAmxN7iW5h447ve/HhvnW uh5qpUvt31h9+iEAPGlZTGhzHgCsOhE5k5iGzNvClp7b6Fb4bUxMMj3LQtYsoH61 1DAnH2Xf5DLsBkGRb8YYBarbT7Meqt/VJWzz84ZTlK5stTKIsguiviEcxM51h2ZD znhjeVtzmgMpza8UeB0d =9wWp -----END PGP SIGNATURE----- Merge tag 'qcom-drivers-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers Pull "Qualcomm ARM Based Driver Updates for v4.15" from Andy Gross: * Add SCM firmware APIs for download mode and secure IO service * Add SMEM support for cached entries * Add SMEM support for global partition, dynamic item limit, and more hosts * tag 'qcom-drivers-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: firmware: qcom: scm: Expose download-mode control firmware: qcom: scm: Expose secure IO service soc: qcom: smem: Increase the number of hosts soc: qcom: smem: Support dynamic item limit soc: qcom: smem: Support global partition soc: qcom: smem: Read version from the smem header soc: qcom: smem: Use le32_to_cpu for comparison soc: qcom: smem: Support getting cached entries soc: qcom: smem: Rename "uncached" accessors
This commit is contained in:
Arnd Bergmann
commit
8a36c27d19
8 changed files with 445 additions and 70 deletions
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@ -52,8 +52,13 @@
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*
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* Items in the non-cached region are allocated from the start of the partition
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* while items in the cached region are allocated from the end. The free area
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* is hence the region between the cached and non-cached offsets.
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* is hence the region between the cached and non-cached offsets. The header of
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* cached items comes after the data.
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*
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* Version 12 (SMEM_GLOBAL_PART_VERSION) changes the item alloc/get procedure
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* for the global heap. A new global partition is created from the global heap
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* region with partition type (SMEM_GLOBAL_HOST) and the max smem item count is
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* set by the bootloader.
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*
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* To synchronize allocations in the shared memory heaps a remote spinlock must
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* be held - currently lock number 3 of the sfpb or tcsr is used for this on all
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@ -62,13 +67,13 @@
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*/
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/*
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* Item 3 of the global heap contains an array of versions for the various
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* software components in the SoC. We verify that the boot loader version is
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* what the expected version (SMEM_EXPECTED_VERSION) as a sanity check.
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* The version member of the smem header contains an array of versions for the
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* various software components in the SoC. We verify that the boot loader
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* version is a valid version as a sanity check.
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*/
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#define SMEM_ITEM_VERSION 3
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#define SMEM_MASTER_SBL_VERSION_INDEX 7
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#define SMEM_EXPECTED_VERSION 11
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#define SMEM_MASTER_SBL_VERSION_INDEX 7
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#define SMEM_GLOBAL_HEAP_VERSION 11
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#define SMEM_GLOBAL_PART_VERSION 12
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/*
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* The first 8 items are only to be allocated by the boot loader while
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@ -82,8 +87,11 @@
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/* Processor/host identifier for the application processor */
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#define SMEM_HOST_APPS 0
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/* Processor/host identifier for the global partition */
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#define SMEM_GLOBAL_HOST 0xfffe
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/* Max number of processors/hosts in a system */
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#define SMEM_HOST_COUNT 9
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#define SMEM_HOST_COUNT 10
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/**
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* struct smem_proc_comm - proc_comm communication struct (legacy)
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@ -140,6 +148,7 @@ struct smem_header {
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* @flags: flags for the partition (currently unused)
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* @host0: first processor/host with access to this partition
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* @host1: second processor/host with access to this partition
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* @cacheline: alignment for "cached" entries
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* @reserved: reserved entries for later use
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*/
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struct smem_ptable_entry {
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@ -148,7 +157,8 @@ struct smem_ptable_entry {
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__le32 flags;
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__le16 host0;
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__le16 host1;
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__le32 reserved[8];
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__le32 cacheline;
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__le32 reserved[7];
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};
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/**
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@ -212,6 +222,24 @@ struct smem_private_entry {
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};
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#define SMEM_PRIVATE_CANARY 0xa5a5
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/**
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* struct smem_info - smem region info located after the table of contents
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* @magic: magic number, must be SMEM_INFO_MAGIC
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* @size: size of the smem region
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* @base_addr: base address of the smem region
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* @reserved: for now reserved entry
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* @num_items: highest accepted item number
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*/
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struct smem_info {
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u8 magic[4];
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__le32 size;
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__le32 base_addr;
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__le32 reserved;
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__le16 num_items;
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};
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static const u8 SMEM_INFO_MAGIC[] = { 0x53, 0x49, 0x49, 0x49 }; /* SIII */
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/**
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* struct smem_region - representation of a chunk of memory used for smem
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* @aux_base: identifier of aux_mem base
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@ -228,8 +256,12 @@ struct smem_region {
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* struct qcom_smem - device data for the smem device
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* @dev: device pointer
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* @hwlock: reference to a hwspinlock
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* @global_partition: pointer to global partition when in use
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* @global_cacheline: cacheline size for global partition
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* @partitions: list of pointers to partitions affecting the current
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* processor/host
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* @cacheline: list of cacheline sizes for each host
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* @item_count: max accepted item number
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* @num_regions: number of @regions
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* @regions: list of the memory regions defining the shared memory
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*/
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@ -238,21 +270,33 @@ struct qcom_smem {
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struct hwspinlock *hwlock;
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struct smem_partition_header *global_partition;
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size_t global_cacheline;
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struct smem_partition_header *partitions[SMEM_HOST_COUNT];
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size_t cacheline[SMEM_HOST_COUNT];
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u32 item_count;
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unsigned num_regions;
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struct smem_region regions[0];
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};
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static struct smem_private_entry *
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phdr_to_last_private_entry(struct smem_partition_header *phdr)
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phdr_to_last_uncached_entry(struct smem_partition_header *phdr)
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{
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void *p = phdr;
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return p + le32_to_cpu(phdr->offset_free_uncached);
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}
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static void *phdr_to_first_cached_entry(struct smem_partition_header *phdr)
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static void *phdr_to_first_cached_entry(struct smem_partition_header *phdr,
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size_t cacheline)
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{
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void *p = phdr;
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return p + le32_to_cpu(phdr->size) - ALIGN(sizeof(*phdr), cacheline);
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}
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static void *phdr_to_last_cached_entry(struct smem_partition_header *phdr)
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{
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void *p = phdr;
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@ -260,7 +304,7 @@ static void *phdr_to_first_cached_entry(struct smem_partition_header *phdr)
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}
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static struct smem_private_entry *
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phdr_to_first_private_entry(struct smem_partition_header *phdr)
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phdr_to_first_uncached_entry(struct smem_partition_header *phdr)
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{
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void *p = phdr;
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@ -268,7 +312,7 @@ phdr_to_first_private_entry(struct smem_partition_header *phdr)
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}
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static struct smem_private_entry *
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private_entry_next(struct smem_private_entry *e)
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uncached_entry_next(struct smem_private_entry *e)
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{
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void *p = e;
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@ -276,13 +320,28 @@ private_entry_next(struct smem_private_entry *e)
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le32_to_cpu(e->size);
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}
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static void *entry_to_item(struct smem_private_entry *e)
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static struct smem_private_entry *
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cached_entry_next(struct smem_private_entry *e, size_t cacheline)
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{
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void *p = e;
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return p - le32_to_cpu(e->size) - ALIGN(sizeof(*e), cacheline);
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}
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static void *uncached_entry_to_item(struct smem_private_entry *e)
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{
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void *p = e;
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return p + sizeof(*e) + le16_to_cpu(e->padding_hdr);
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}
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static void *cached_entry_to_item(struct smem_private_entry *e)
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{
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void *p = e;
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return p - le32_to_cpu(e->size);
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}
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/* Pointer to the one and only smem handle */
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static struct qcom_smem *__smem;
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@ -290,32 +349,30 @@ static struct qcom_smem *__smem;
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#define HWSPINLOCK_TIMEOUT 1000
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static int qcom_smem_alloc_private(struct qcom_smem *smem,
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unsigned host,
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struct smem_partition_header *phdr,
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unsigned item,
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size_t size)
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{
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struct smem_partition_header *phdr;
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struct smem_private_entry *hdr, *end;
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size_t alloc_size;
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void *cached;
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phdr = smem->partitions[host];
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hdr = phdr_to_first_private_entry(phdr);
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end = phdr_to_last_private_entry(phdr);
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cached = phdr_to_first_cached_entry(phdr);
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hdr = phdr_to_first_uncached_entry(phdr);
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end = phdr_to_last_uncached_entry(phdr);
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cached = phdr_to_last_cached_entry(phdr);
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while (hdr < end) {
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if (hdr->canary != SMEM_PRIVATE_CANARY) {
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dev_err(smem->dev,
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"Found invalid canary in host %d partition\n",
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host);
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"Found invalid canary in hosts %d:%d partition\n",
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phdr->host0, phdr->host1);
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return -EINVAL;
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}
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if (le16_to_cpu(hdr->item) == item)
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return -EEXIST;
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hdr = private_entry_next(hdr);
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hdr = uncached_entry_next(hdr);
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}
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/* Check that we don't grow into the cached region */
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@ -346,11 +403,8 @@ static int qcom_smem_alloc_global(struct qcom_smem *smem,
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unsigned item,
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size_t size)
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{
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struct smem_header *header;
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struct smem_global_entry *entry;
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if (WARN_ON(item >= SMEM_ITEM_COUNT))
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return -EINVAL;
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struct smem_header *header;
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header = smem->regions[0].virt_base;
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entry = &header->toc[item];
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@ -389,6 +443,7 @@ static int qcom_smem_alloc_global(struct qcom_smem *smem,
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*/
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int qcom_smem_alloc(unsigned host, unsigned item, size_t size)
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{
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struct smem_partition_header *phdr;
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unsigned long flags;
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int ret;
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@ -401,16 +456,24 @@ int qcom_smem_alloc(unsigned host, unsigned item, size_t size)
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return -EINVAL;
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}
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if (WARN_ON(item >= __smem->item_count))
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return -EINVAL;
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ret = hwspin_lock_timeout_irqsave(__smem->hwlock,
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HWSPINLOCK_TIMEOUT,
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&flags);
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if (ret)
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return ret;
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if (host < SMEM_HOST_COUNT && __smem->partitions[host])
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ret = qcom_smem_alloc_private(__smem, host, item, size);
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else
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if (host < SMEM_HOST_COUNT && __smem->partitions[host]) {
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phdr = __smem->partitions[host];
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ret = qcom_smem_alloc_private(__smem, phdr, item, size);
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} else if (__smem->global_partition) {
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phdr = __smem->global_partition;
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ret = qcom_smem_alloc_private(__smem, phdr, item, size);
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} else {
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ret = qcom_smem_alloc_global(__smem, item, size);
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}
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hwspin_unlock_irqrestore(__smem->hwlock, &flags);
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@ -428,9 +491,6 @@ static void *qcom_smem_get_global(struct qcom_smem *smem,
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u32 aux_base;
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unsigned i;
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if (WARN_ON(item >= SMEM_ITEM_COUNT))
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return ERR_PTR(-EINVAL);
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header = smem->regions[0].virt_base;
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entry = &header->toc[item];
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if (!entry->allocated)
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@ -452,37 +512,58 @@ static void *qcom_smem_get_global(struct qcom_smem *smem,
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}
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static void *qcom_smem_get_private(struct qcom_smem *smem,
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unsigned host,
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struct smem_partition_header *phdr,
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size_t cacheline,
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unsigned item,
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size_t *size)
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{
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struct smem_partition_header *phdr;
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struct smem_private_entry *e, *end;
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phdr = smem->partitions[host];
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e = phdr_to_first_private_entry(phdr);
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end = phdr_to_last_private_entry(phdr);
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e = phdr_to_first_uncached_entry(phdr);
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end = phdr_to_last_uncached_entry(phdr);
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while (e < end) {
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if (e->canary != SMEM_PRIVATE_CANARY) {
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dev_err(smem->dev,
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"Found invalid canary in host %d partition\n",
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host);
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return ERR_PTR(-EINVAL);
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}
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if (e->canary != SMEM_PRIVATE_CANARY)
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goto invalid_canary;
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if (le16_to_cpu(e->item) == item) {
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if (size != NULL)
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*size = le32_to_cpu(e->size) -
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le16_to_cpu(e->padding_data);
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return entry_to_item(e);
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return uncached_entry_to_item(e);
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}
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e = private_entry_next(e);
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e = uncached_entry_next(e);
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}
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/* Item was not found in the uncached list, search the cached list */
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e = phdr_to_first_cached_entry(phdr, cacheline);
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end = phdr_to_last_cached_entry(phdr);
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while (e > end) {
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if (e->canary != SMEM_PRIVATE_CANARY)
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goto invalid_canary;
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if (le16_to_cpu(e->item) == item) {
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if (size != NULL)
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*size = le32_to_cpu(e->size) -
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le16_to_cpu(e->padding_data);
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return cached_entry_to_item(e);
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}
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e = cached_entry_next(e, cacheline);
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}
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return ERR_PTR(-ENOENT);
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invalid_canary:
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dev_err(smem->dev, "Found invalid canary in hosts %d:%d partition\n",
|
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phdr->host0, phdr->host1);
|
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|
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return ERR_PTR(-EINVAL);
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}
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/**
|
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|
|
@ -496,23 +577,35 @@ static void *qcom_smem_get_private(struct qcom_smem *smem,
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*/
|
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void *qcom_smem_get(unsigned host, unsigned item, size_t *size)
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{
|
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struct smem_partition_header *phdr;
|
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unsigned long flags;
|
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size_t cacheln;
|
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int ret;
|
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void *ptr = ERR_PTR(-EPROBE_DEFER);
|
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|
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if (!__smem)
|
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return ptr;
|
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|
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if (WARN_ON(item >= __smem->item_count))
|
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return ERR_PTR(-EINVAL);
|
||||
|
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ret = hwspin_lock_timeout_irqsave(__smem->hwlock,
|
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HWSPINLOCK_TIMEOUT,
|
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&flags);
|
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if (ret)
|
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return ERR_PTR(ret);
|
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|
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if (host < SMEM_HOST_COUNT && __smem->partitions[host])
|
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ptr = qcom_smem_get_private(__smem, host, item, size);
|
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else
|
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if (host < SMEM_HOST_COUNT && __smem->partitions[host]) {
|
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phdr = __smem->partitions[host];
|
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cacheln = __smem->cacheline[host];
|
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ptr = qcom_smem_get_private(__smem, phdr, cacheln, item, size);
|
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} else if (__smem->global_partition) {
|
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phdr = __smem->global_partition;
|
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cacheln = __smem->global_cacheline;
|
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ptr = qcom_smem_get_private(__smem, phdr, cacheln, item, size);
|
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} else {
|
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ptr = qcom_smem_get_global(__smem, item, size);
|
||||
}
|
||||
|
||||
hwspin_unlock_irqrestore(__smem->hwlock, &flags);
|
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|
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|
|
@ -541,6 +634,10 @@ int qcom_smem_get_free_space(unsigned host)
|
|||
phdr = __smem->partitions[host];
|
||||
ret = le32_to_cpu(phdr->offset_free_cached) -
|
||||
le32_to_cpu(phdr->offset_free_uncached);
|
||||
} else if (__smem->global_partition) {
|
||||
phdr = __smem->global_partition;
|
||||
ret = le32_to_cpu(phdr->offset_free_cached) -
|
||||
le32_to_cpu(phdr->offset_free_uncached);
|
||||
} else {
|
||||
header = __smem->regions[0].virt_base;
|
||||
ret = le32_to_cpu(header->available);
|
||||
|
|
@ -552,44 +649,131 @@ EXPORT_SYMBOL(qcom_smem_get_free_space);
|
|||
|
||||
static int qcom_smem_get_sbl_version(struct qcom_smem *smem)
|
||||
{
|
||||
struct smem_header *header;
|
||||
__le32 *versions;
|
||||
size_t size;
|
||||
|
||||
versions = qcom_smem_get_global(smem, SMEM_ITEM_VERSION, &size);
|
||||
if (IS_ERR(versions)) {
|
||||
dev_err(smem->dev, "Unable to read the version item\n");
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
if (size < sizeof(unsigned) * SMEM_MASTER_SBL_VERSION_INDEX) {
|
||||
dev_err(smem->dev, "Version item is too small\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
header = smem->regions[0].virt_base;
|
||||
versions = header->version;
|
||||
|
||||
return le32_to_cpu(versions[SMEM_MASTER_SBL_VERSION_INDEX]);
|
||||
}
|
||||
|
||||
static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
|
||||
unsigned local_host)
|
||||
static struct smem_ptable *qcom_smem_get_ptable(struct qcom_smem *smem)
|
||||
{
|
||||
struct smem_partition_header *header;
|
||||
struct smem_ptable_entry *entry;
|
||||
struct smem_ptable *ptable;
|
||||
unsigned remote_host;
|
||||
u32 version, host0, host1;
|
||||
int i;
|
||||
u32 version;
|
||||
|
||||
ptable = smem->regions[0].virt_base + smem->regions[0].size - SZ_4K;
|
||||
if (memcmp(ptable->magic, SMEM_PTABLE_MAGIC, sizeof(ptable->magic)))
|
||||
return 0;
|
||||
return ERR_PTR(-ENOENT);
|
||||
|
||||
version = le32_to_cpu(ptable->version);
|
||||
if (version != 1) {
|
||||
dev_err(smem->dev,
|
||||
"Unsupported partition header version %d\n", version);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
return ptable;
|
||||
}
|
||||
|
||||
static u32 qcom_smem_get_item_count(struct qcom_smem *smem)
|
||||
{
|
||||
struct smem_ptable *ptable;
|
||||
struct smem_info *info;
|
||||
|
||||
ptable = qcom_smem_get_ptable(smem);
|
||||
if (IS_ERR_OR_NULL(ptable))
|
||||
return SMEM_ITEM_COUNT;
|
||||
|
||||
info = (struct smem_info *)&ptable->entry[ptable->num_entries];
|
||||
if (memcmp(info->magic, SMEM_INFO_MAGIC, sizeof(info->magic)))
|
||||
return SMEM_ITEM_COUNT;
|
||||
|
||||
return le16_to_cpu(info->num_items);
|
||||
}
|
||||
|
||||
static int qcom_smem_set_global_partition(struct qcom_smem *smem)
|
||||
{
|
||||
struct smem_partition_header *header;
|
||||
struct smem_ptable_entry *entry = NULL;
|
||||
struct smem_ptable *ptable;
|
||||
u32 host0, host1, size;
|
||||
int i;
|
||||
|
||||
ptable = qcom_smem_get_ptable(smem);
|
||||
if (IS_ERR(ptable))
|
||||
return PTR_ERR(ptable);
|
||||
|
||||
for (i = 0; i < le32_to_cpu(ptable->num_entries); i++) {
|
||||
entry = &ptable->entry[i];
|
||||
host0 = le16_to_cpu(entry->host0);
|
||||
host1 = le16_to_cpu(entry->host1);
|
||||
|
||||
if (host0 == SMEM_GLOBAL_HOST && host0 == host1)
|
||||
break;
|
||||
}
|
||||
|
||||
if (!entry) {
|
||||
dev_err(smem->dev, "Missing entry for global partition\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!le32_to_cpu(entry->offset) || !le32_to_cpu(entry->size)) {
|
||||
dev_err(smem->dev, "Invalid entry for global partition\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (smem->global_partition) {
|
||||
dev_err(smem->dev, "Already found the global partition\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
|
||||
host0 = le16_to_cpu(header->host0);
|
||||
host1 = le16_to_cpu(header->host1);
|
||||
|
||||
if (memcmp(header->magic, SMEM_PART_MAGIC, sizeof(header->magic))) {
|
||||
dev_err(smem->dev, "Global partition has invalid magic\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (host0 != SMEM_GLOBAL_HOST && host1 != SMEM_GLOBAL_HOST) {
|
||||
dev_err(smem->dev, "Global partition hosts are invalid\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (le32_to_cpu(header->size) != le32_to_cpu(entry->size)) {
|
||||
dev_err(smem->dev, "Global partition has invalid size\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
size = le32_to_cpu(header->offset_free_uncached);
|
||||
if (size > le32_to_cpu(header->size)) {
|
||||
dev_err(smem->dev,
|
||||
"Global partition has invalid free pointer\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
smem->global_partition = header;
|
||||
smem->global_cacheline = le32_to_cpu(entry->cacheline);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
|
||||
unsigned int local_host)
|
||||
{
|
||||
struct smem_partition_header *header;
|
||||
struct smem_ptable_entry *entry;
|
||||
struct smem_ptable *ptable;
|
||||
unsigned int remote_host;
|
||||
u32 host0, host1;
|
||||
int i;
|
||||
|
||||
ptable = qcom_smem_get_ptable(smem);
|
||||
if (IS_ERR(ptable))
|
||||
return PTR_ERR(ptable);
|
||||
|
||||
for (i = 0; i < le32_to_cpu(ptable->num_entries); i++) {
|
||||
entry = &ptable->entry[i];
|
||||
host0 = le16_to_cpu(entry->host0);
|
||||
|
|
@ -646,7 +830,7 @@ static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (header->size != entry->size) {
|
||||
if (le32_to_cpu(header->size) != le32_to_cpu(entry->size)) {
|
||||
dev_err(smem->dev,
|
||||
"Partition %d has invalid size\n", i);
|
||||
return -EINVAL;
|
||||
|
|
@ -659,6 +843,7 @@ static int qcom_smem_enumerate_partitions(struct qcom_smem *smem,
|
|||
}
|
||||
|
||||
smem->partitions[remote_host] = header;
|
||||
smem->cacheline[remote_host] = le32_to_cpu(entry->cacheline);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
|
@ -729,13 +914,23 @@ static int qcom_smem_probe(struct platform_device *pdev)
|
|||
}
|
||||
|
||||
version = qcom_smem_get_sbl_version(smem);
|
||||
if (version >> 16 != SMEM_EXPECTED_VERSION) {
|
||||
switch (version >> 16) {
|
||||
case SMEM_GLOBAL_PART_VERSION:
|
||||
ret = qcom_smem_set_global_partition(smem);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
smem->item_count = qcom_smem_get_item_count(smem);
|
||||
break;
|
||||
case SMEM_GLOBAL_HEAP_VERSION:
|
||||
smem->item_count = SMEM_ITEM_COUNT;
|
||||
break;
|
||||
default:
|
||||
dev_err(&pdev->dev, "Unsupported SMEM version 0x%x\n", version);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = qcom_smem_enumerate_partitions(smem, SMEM_HOST_APPS);
|
||||
if (ret < 0)
|
||||
if (ret < 0 && ret != -ENOENT)
|
||||
return ret;
|
||||
|
||||
hwlock_id = of_hwspin_lock_get_id(pdev->dev.of_node, 0);
|
||||
|
|
|
|||
Loading…
Reference in a new issue