evie/android_kernel_oneplus_msm8998
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ion: msm: Clean up DT parsing

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Many of the DT options for reserving memory are no longer used
at all. Simply the reading of bases/sizes from the DT and convert
to the new format.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
This commit is contained in:
Laura Abbott 2014-08-01 16:13:40 -07:00 • committed by David Keitel
parent 2e3f26f069
commit 44e7c99081
1 changed files with 15 additions and 112 deletions
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127
drivers/staging/android/ion/msm/msm_ion.c
View file

@ -450,120 +450,30 @@ static void free_pdata(const struct ion_platform_data *pdata)
kfree(pdata);
}
static void msm_ion_get_heap_align(struct device_node *node,
struct ion_platform_heap *heap)
{
unsigned int val;
int ret = of_property_read_u32(node, "qcom,heap-align", &val);
if (!ret) {
switch ((int) heap->type) {
case ION_HEAP_TYPE_CARVEOUT:
{
struct ion_co_heap_pdata *extra =
heap->extra_data;
extra->align = val;
break;
}
default:
pr_err("ION-heap %s: Cannot specify alignment for this type of heap\n",
heap->name);
break;
}
}
}
static int msm_ion_get_heap_size(struct device_node *node,
static void msm_ion_get_heap_dt_data(struct device_node *node,
struct ion_platform_heap *heap)
{
unsigned int val;
int ret = 0;
u32 out_values[2];
struct device_node *pnode;
ret = of_property_read_u32(node, "qcom,memory-reservation-size", &val);
if (!ret)
heap->size = val;
ret = of_property_read_u32_array(node, "qcom,memory-fixed",
out_values, 2);
if (!ret) {
heap->size = out_values[1];
goto out;
}
pnode = of_parse_phandle(node, "linux,contiguous-region", 0);
pnode = of_parse_phandle(node, "memory-region", 0);
if (pnode != NULL) {
const u32 *addr;
const __be32 *basep;
u64 size;
u64 base;
addr = of_get_address(pnode, 0, &size, NULL);
if (!addr) {
of_node_put(pnode);
ret = -EINVAL;
goto out;
basep = of_get_address(pnode, 0, &size, NULL);
if (!basep) {
base = cma_get_base(dev_get_cma_area(heap->priv));
size = cma_get_size(dev_get_cma_area(heap->priv));
} else {
base = of_translate_address(pnode, basep);
WARN(base == OF_BAD_ADDR, "Failed to parse DT node for heap %s\n",
heap->name);
}
heap->size = (u32) size;
ret = 0;
heap->base = base;
heap->size = size;
of_node_put(pnode);
}
ret = 0;
out:
return ret;
}
static void msm_ion_get_heap_base(struct device_node *node,
struct ion_platform_heap *heap)
{
u32 out_values[2];
int ret = 0;
struct device_node *pnode;
ret = of_property_read_u32_array(node, "qcom,memory-fixed",
out_values, 2);
if (!ret)
heap->base = out_values[0];
pnode = of_parse_phandle(node, "linux,contiguous-region", 0);
if (pnode != NULL) {
heap->base = cma_get_base(heap->priv);
of_node_put(pnode);
}
return;
}
static void msm_ion_get_heap_adjacent(struct device_node *node,
struct ion_platform_heap *heap)
{
unsigned int val;
int ret = of_property_read_u32(node, "qcom,heap-adjacent", &val);
if (!ret) {
switch (heap->type) {
case ION_HEAP_TYPE_CARVEOUT:
{
struct ion_co_heap_pdata *extra = heap->extra_data;
extra->adjacent_mem_id = val;
break;
}
default:
pr_err("ION-heap %s: Cannot specify adjcent mem id for this type of heap\n",
heap->name);
break;
}
} else {
switch (heap->type) {
case ION_HEAP_TYPE_CARVEOUT:
{
struct ion_co_heap_pdata *extra = heap->extra_data;
extra->adjacent_mem_id = INVALID_HEAP_ID;
break;
}
default:
break;
}
}
}
static struct ion_platform_data *msm_ion_parse_dt(struct platform_device *pdev)
@ -621,14 +531,7 @@ static struct ion_platform_data *msm_ion_parse_dt(struct platform_device *pdev)
if (ret)
goto free_heaps;
msm_ion_get_heap_base(node, &pdata->heaps[idx]);
msm_ion_get_heap_align(node, &pdata->heaps[idx]);
ret = msm_ion_get_heap_size(node, &pdata->heaps[idx]);
if (ret)
goto free_heaps;
msm_ion_get_heap_adjacent(node, &pdata->heaps[idx]);
msm_ion_get_heap_dt_data(node, &pdata->heaps[idx]);
++idx;
}