diff options
author | Laura Abbott <labbott@redhat.com> | 2016-08-31 00:04:29 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-12 10:18:56 (GMT) |
commit | b6e336dbeda85585c3ba6d935753d8240e18baf1 (patch) | |
tree | ba628e22579b405fb18c898ce368c2bf378a548a /drivers | |
parent | 13439479c7de873f2ad5399b9224249c928decd8 (diff) | |
download | linux-b6e336dbeda85585c3ba6d935753d8240e18baf1.tar.xz |
staging: android: ion: Convert hi6220 to common platform
Now that we have common devicetree bindings, convert hisilicon
platform to use the binding and parsing methods.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/staging/android/ion/hisilicon/hi6220_ion.c | 195 |
1 files changed, 44 insertions, 151 deletions
diff --git a/drivers/staging/android/ion/hisilicon/hi6220_ion.c b/drivers/staging/android/ion/hisilicon/hi6220_ion.c index fe9f0fd..f392db2 100644 --- a/drivers/staging/android/ion/hisilicon/hi6220_ion.c +++ b/drivers/staging/android/ion/hisilicon/hi6220_ion.c @@ -19,181 +19,74 @@ #include <linux/mm.h> #include "../ion_priv.h" #include "../ion.h" +#include "../ion_of.h" -struct hi6220_ion_type_table { - const char *name; - enum ion_heap_type type; +struct hisi_ion_dev { + struct ion_heap **heaps; + struct ion_device *idev; + struct ion_platform_data *data; }; -static struct hi6220_ion_type_table ion_type_table[] = { - {"ion_system", ION_HEAP_TYPE_SYSTEM}, - {"ion_system_contig", ION_HEAP_TYPE_SYSTEM_CONTIG}, - {"ion_carveout", ION_HEAP_TYPE_CARVEOUT}, - {"ion_chunk", ION_HEAP_TYPE_CHUNK}, - {"ion_dma", ION_HEAP_TYPE_DMA}, - {"ion_custom", ION_HEAP_TYPE_CUSTOM}, +static struct ion_of_heap hisi_heaps[] = { + PLATFORM_HEAP("hisilicon,sys_user", 0, + ION_HEAP_TYPE_SYSTEM, "sys_user"), + PLATFORM_HEAP("hisilicon,sys_contig", 1, + ION_HEAP_TYPE_SYSTEM_CONTIG, "sys_contig"), + PLATFORM_HEAP("hisilicon,cma", ION_HEAP_TYPE_DMA, ION_HEAP_TYPE_DMA, + "cma"), + {} }; -static struct ion_device *idev; -static int num_heaps; -static struct ion_heap **heaps; -static struct ion_platform_heap **heaps_data; - -static int get_type_by_name(const char *name, enum ion_heap_type *type) +static int hi6220_ion_probe(struct platform_device *pdev) { + struct hisi_ion_dev *ipdev; int i; - for (i = 0; i < ARRAY_SIZE(ion_type_table); i++) { - if (strncmp(name, ion_type_table[i].name, strlen(name))) - continue; - - *type = ion_type_table[i].type; - return 0; - } - - return -EINVAL; -} - -static int hi6220_set_platform_data(struct platform_device *pdev) -{ - unsigned int base; - unsigned int size; - unsigned int id; - const char *heap_name; - const char *type_name; - enum ion_heap_type type; - int ret; - struct device_node *np; - struct ion_platform_heap *p_data; - const struct device_node *dt_node = pdev->dev.of_node; - int index = 0; - - for_each_child_of_node(dt_node, np) - num_heaps++; - - heaps_data = devm_kzalloc(&pdev->dev, - sizeof(struct ion_platform_heap *) * - num_heaps, - GFP_KERNEL); - if (!heaps_data) + ipdev = devm_kzalloc(&pdev->dev, sizeof(*ipdev), GFP_KERNEL); + if (!ipdev) return -ENOMEM; - for_each_child_of_node(dt_node, np) { - ret = of_property_read_string(np, "heap-name", &heap_name); - if (ret < 0) { - pr_err("check the name of node %s\n", np->name); - continue; - } - - ret = of_property_read_u32(np, "heap-id", &id); - if (ret < 0) { - pr_err("check the id %s\n", np->name); - continue; - } - - ret = of_property_read_u32(np, "heap-base", &base); - if (ret < 0) { - pr_err("check the base of node %s\n", np->name); - continue; - } - - ret = of_property_read_u32(np, "heap-size", &size); - if (ret < 0) { - pr_err("check the size of node %s\n", np->name); - continue; - } - - ret = of_property_read_string(np, "heap-type", &type_name); - if (ret < 0) { - pr_err("check the type of node %s\n", np->name); - continue; - } - - ret = get_type_by_name(type_name, &type); - if (ret < 0) { - pr_err("type name error %s!\n", type_name); - continue; - } - pr_info("heap index %d : name %s base 0x%x size 0x%x id %d type %d\n", - index, heap_name, base, size, id, type); - - p_data = devm_kzalloc(&pdev->dev, - sizeof(struct ion_platform_heap), - GFP_KERNEL); - if (!p_data) - return -ENOMEM; + platform_set_drvdata(pdev, ipdev); - p_data->name = heap_name; - p_data->base = base; - p_data->size = size; - p_data->id = id; - p_data->type = type; + ipdev->idev = ion_device_create(NULL); + if (!ipdev->idev) + return -ENOMEM; - heaps_data[index] = p_data; - index++; - } - return 0; -} + ipdev->data = ion_parse_dt(pdev, hisi_heaps); + if (IS_ERR(ipdev->data)) + return PTR_ERR(ipdev->data); -static int hi6220_ion_probe(struct platform_device *pdev) -{ - int i; - int err; - static struct ion_platform_heap *p_heap; - - idev = ion_device_create(NULL); - err = hi6220_set_platform_data(pdev); - if (err) { - pr_err("ion set platform data error!\n"); - goto err_free_idev; - } - heaps = devm_kzalloc(&pdev->dev, - sizeof(struct ion_heap *) * num_heaps, - GFP_KERNEL); - if (!heaps) { - err = -ENOMEM; - goto err_free_idev; + ipdev->heaps = devm_kzalloc(&pdev->dev, + sizeof(struct ion_heap)*ipdev->data->nr, + GFP_KERNEL); + if (!ipdev->heaps) { + ion_destroy_platform_data(ipdev->data); + return -ENOMEM; } - /* - * create the heaps as specified in the dts file - */ - for (i = 0; i < num_heaps; i++) { - p_heap = heaps_data[i]; - heaps[i] = ion_heap_create(p_heap); - if (IS_ERR_OR_NULL(heaps[i])) { - err = PTR_ERR(heaps[i]); - goto err_free_heaps; + for (i = 0; i < ipdev->data->nr; i++) { + ipdev->heaps[i] = ion_heap_create(&ipdev->data->heaps[i]); + if (!ipdev->heaps) { + ion_destroy_platform_data(ipdev->data); + return -ENOMEM; } - - ion_device_add_heap(idev, heaps[i]); - - pr_info("%s: adding heap %s of type %d with %lx@%lx\n", - __func__, p_heap->name, p_heap->type, - p_heap->base, (unsigned long)p_heap->size); + ion_device_add_heap(ipdev->idev, ipdev->heaps[i]); } - return err; - -err_free_heaps: - for (i = 0; i < num_heaps; ++i) { - ion_heap_destroy(heaps[i]); - heaps[i] = NULL; - } -err_free_idev: - ion_device_destroy(idev); - - return err; + return 0; } static int hi6220_ion_remove(struct platform_device *pdev) { + struct hisi_ion_dev *ipdev; int i; - for (i = 0; i < num_heaps; i++) { - ion_heap_destroy(heaps[i]); - heaps[i] = NULL; + ipdev = platform_get_drvdata(pdev); + + for (i = 0; i < ipdev->data->nr; i++) { + ion_heap_destroy(ipdev->heaps[i]); } - ion_device_destroy(idev); + ion_destroy_platform_data(ipdev->data); + ion_device_destroy(ipdev->idev); return 0; } |