DeviceTree fixes for 4.4-rc1:

- Add empty of_translate_address needed for HiSilicon network driver.
 
 - Fix alignment requirements for CMA regions in DT.
 
 - Fix booting on PPC systems which can't do WARN() early.
 
 - Rename ak4554 binding doc from .c to .txt.
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Merge tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - Add empty of_translate_address needed for HiSilicon network driver.

 - Fix alignment requirements for CMA regions in DT.

 - Fix booting on PPC systems which can't do WARN() early.

 - Rename ak4554 binding doc from .c to .txt.

* tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Provide static inline function for of_translate_address if needed
  drivers: of: of_reserved_mem: fixup the alignment with CMA setup
  of: Print rather than WARN'ing when overlap check fails
  dt-bindings: ak4554: extension should be .txt
This commit is contained in:
Linus Torvalds 2015-11-11 19:54:05 -08:00
commit b4a237598a
4 changed files with 16 additions and 6 deletions

View file

@ -124,6 +124,10 @@ static int __init __reserved_mem_alloc_size(unsigned long node,
align = dt_mem_next_cell(dt_root_addr_cells, &prop);
}
/* Need adjust the alignment to satisfy the CMA requirement */
if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool"))
align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order));
prop = of_get_flat_dt_prop(node, "alloc-ranges", &len);
if (prop) {
@ -226,10 +230,9 @@ static void __init __rmem_check_for_overlap(void)
this_end = this->base + this->size;
next_end = next->base + next->size;
WARN(1,
"Reserved memory: OVERLAP DETECTED!\n%s (%pa--%pa) overlaps with %s (%pa--%pa)\n",
this->name, &this->base, &this_end,
next->name, &next->base, &next_end);
pr_err("Reserved memory: OVERLAP DETECTED!\n%s (%pa--%pa) overlaps with %s (%pa--%pa)\n",
this->name, &this->base, &this_end,
next->name, &next->base, &next_end);
}
}
}

View file

@ -126,6 +126,8 @@ extern raw_spinlock_t devtree_lock;
#define OF_POPULATED 3 /* device already created for the node */
#define OF_POPULATED_BUS 4 /* of_platform_populate recursed to children of this node */
#define OF_BAD_ADDR ((u64)-1)
#ifdef CONFIG_OF
void of_core_init(void);
@ -229,8 +231,6 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
#define OF_BAD_ADDR ((u64)-1)
static inline const char *of_node_full_name(const struct device_node *np)
{
return np ? np->full_name : "<no-node>";

View file

@ -57,6 +57,13 @@ extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
u64 *paddr, u64 *size);
extern bool of_dma_is_coherent(struct device_node *np);
#else /* CONFIG_OF_ADDRESS */
static inline u64 of_translate_address(struct device_node *np,
const __be32 *addr)
{
return OF_BAD_ADDR;
}
static inline struct device_node *of_find_matching_node_by_address(
struct device_node *from,
const struct of_device_id *matches,