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path: root/drivers/media/platform/qcom/venus/firmware.c
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Diffstat (limited to 'drivers/media/platform/qcom/venus/firmware.c')
-rw-r--r--drivers/media/platform/qcom/venus/firmware.c76
1 files changed, 33 insertions, 43 deletions
diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 1b1a4f355918..521d4b36c090 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -12,97 +12,87 @@
*
*/
-#include <linux/dma-mapping.h>
+#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/kernel.h>
+#include <linux/io.h>
#include <linux/of.h>
-#include <linux/of_reserved_mem.h>
-#include <linux/slab.h>
+#include <linux/of_address.h>
#include <linux/qcom_scm.h>
+#include <linux/sizes.h>
#include <linux/soc/qcom/mdt_loader.h>
#include "firmware.h"
#define VENUS_PAS_ID 9
-#define VENUS_FW_MEM_SIZE SZ_8M
+#define VENUS_FW_MEM_SIZE (6 * SZ_1M)
-static void device_release_dummy(struct device *dev)
-{
- of_reserved_mem_device_release(dev);
-}
-
-int venus_boot(struct device *parent, struct device *fw_dev, const char *fwname)
+int venus_boot(struct device *dev, const char *fwname)
{
const struct firmware *mdt;
+ struct device_node *node;
phys_addr_t mem_phys;
+ struct resource r;
ssize_t fw_size;
size_t mem_size;
void *mem_va;
int ret;
- if (!qcom_scm_is_available())
+ if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) || !qcom_scm_is_available())
return -EPROBE_DEFER;
- fw_dev->parent = parent;
- fw_dev->release = device_release_dummy;
+ node = of_parse_phandle(dev->of_node, "memory-region", 0);
+ if (!node) {
+ dev_err(dev, "no memory-region specified\n");
+ return -EINVAL;
+ }
- ret = dev_set_name(fw_dev, "%s:%s", dev_name(parent), "firmware");
+ ret = of_address_to_resource(node, 0, &r);
if (ret)
return ret;
- ret = device_register(fw_dev);
- if (ret < 0)
- return ret;
+ mem_phys = r.start;
+ mem_size = resource_size(&r);
- ret = of_reserved_mem_device_init_by_idx(fw_dev, parent->of_node, 0);
- if (ret)
- goto err_unreg_device;
+ if (mem_size < VENUS_FW_MEM_SIZE)
+ return -EINVAL;
- mem_size = VENUS_FW_MEM_SIZE;
-
- mem_va = dmam_alloc_coherent(fw_dev, mem_size, &mem_phys, GFP_KERNEL);
+ mem_va = memremap(r.start, mem_size, MEMREMAP_WC);
if (!mem_va) {
- ret = -ENOMEM;
- goto err_unreg_device;
+ dev_err(dev, "unable to map memory region: %pa+%zx\n",
+ &r.start, mem_size);
+ return -ENOMEM;
}
- ret = request_firmware(&mdt, fwname, fw_dev);
+ ret = request_firmware(&mdt, fwname, dev);
if (ret < 0)
- goto err_unreg_device;
+ goto err_unmap;
fw_size = qcom_mdt_get_size(mdt);
if (fw_size < 0) {
ret = fw_size;
release_firmware(mdt);
- goto err_unreg_device;
+ goto err_unmap;
}
- ret = qcom_mdt_load(fw_dev, mdt, fwname, VENUS_PAS_ID, mem_va, mem_phys,
+ ret = qcom_mdt_load(dev, mdt, fwname, VENUS_PAS_ID, mem_va, mem_phys,
mem_size);
release_firmware(mdt);
if (ret)
- goto err_unreg_device;
+ goto err_unmap;
ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID);
if (ret)
- goto err_unreg_device;
-
- return 0;
+ goto err_unmap;
-err_unreg_device:
- device_unregister(fw_dev);
+err_unmap:
+ memunmap(mem_va);
return ret;
}
-int venus_shutdown(struct device *fw_dev)
+int venus_shutdown(struct device *dev)
{
- int ret;
-
- ret = qcom_scm_pas_shutdown(VENUS_PAS_ID);
- device_unregister(fw_dev);
- memset(fw_dev, 0, sizeof(*fw_dev));
-
- return ret;
+ return qcom_scm_pas_shutdown(VENUS_PAS_ID);
}