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Commit c5106c2c authored by rbandi's avatar rbandi
Browse files

HID: qvr: using different dma-buf APIs 



Using dma_buf_vmap and dma_buf_vunmap
instead of dma_buf_kmap and dma_buf_kunmap.

Change-Id: I39132b3073141ebb0ac5e2f9f3637a52ed397448
Signed-off-by: default avatarrbandi <rohitbandi@codeaurora.org>
parent 0ea391ba

drivers/hid/hid-qvr.c

+4 −4
Original line number Diff line number Diff line
@@ -383,10 +383,10 @@ static int kernel_map_gyro_buffer(void) 
		goto err_dma;

	}

	sensor->vsize = sensor->qvr_buf->size;

	sensor->vaddr = dma_buf_kmap(sensor->qvr_buf, 0);

	if (IS_ERR_OR_NULL(sensor->vaddr)) {

	sensor->vaddr = dma_buf_vmap(sensor->qvr_buf);

	if (!sensor->vaddr) {

		ret = -ENOMEM;

		pr_err("dma_buf_kmap failed for fd: %d\n", sensor->fd);

		pr_err("dma_buf_vmap failed for fd: %d\n", sensor->fd);

		goto err_end_access;

	}
@@ -409,7 +409,7 @@ static void kernel_unmap_gyro_buffer(void) 


	if (IS_ERR_OR_NULL(sensor->vaddr))

		return;

	dma_buf_kunmap(sensor->qvr_buf, 0, sensor->vaddr);

	dma_buf_vunmap(sensor->qvr_buf, sensor->vaddr);

	dma_buf_end_cpu_access(sensor->qvr_buf, DMA_BIDIRECTIONAL);

	sensor->vaddr = NULL;

	dma_buf_put(sensor->qvr_buf);