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path: root/drivers/video/omap2/vram.c
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Diffstat (limited to 'drivers/video/omap2/vram.c')
-rw-r--r--drivers/video/omap2/vram.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c
index 87e421e25afe..f2b15c4a75bc 100644
--- a/drivers/video/omap2/vram.c
+++ b/drivers/video/omap2/vram.c
@@ -34,7 +34,6 @@
34#include <asm/setup.h> 34#include <asm/setup.h>
35 35
36#include <plat/vram.h> 36#include <plat/vram.h>
37#include <plat/dma.h>
38 37
39#ifdef DEBUG 38#ifdef DEBUG
40#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__) 39#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__)
@@ -250,59 +249,6 @@ int omap_vram_reserve(unsigned long paddr, size_t size)
250} 249}
251EXPORT_SYMBOL(omap_vram_reserve); 250EXPORT_SYMBOL(omap_vram_reserve);
252 251
253static void _omap_vram_dma_cb(int lch, u16 ch_status, void *data)
254{
255 struct completion *compl = data;
256 complete(compl);
257}
258
259static int _omap_vram_clear(u32 paddr, unsigned pages)
260{
261 struct completion compl;
262 unsigned elem_count;
263 unsigned frame_count;
264 int r;
265 int lch;
266
267 init_completion(&compl);
268
269 r = omap_request_dma(OMAP_DMA_NO_DEVICE, "VRAM DMA",
270 _omap_vram_dma_cb,
271 &compl, &lch);
272 if (r) {
273 pr_err("VRAM: request_dma failed for memory clear\n");
274 return -EBUSY;
275 }
276
277 elem_count = pages * PAGE_SIZE / 4;
278 frame_count = 1;
279
280 omap_set_dma_transfer_params(lch, OMAP_DMA_DATA_TYPE_S32,
281 elem_count, frame_count,
282 OMAP_DMA_SYNC_ELEMENT,
283 0, 0);
284
285 omap_set_dma_dest_params(lch, 0, OMAP_DMA_AMODE_POST_INC,
286 paddr, 0, 0);
287
288 omap_set_dma_color_mode(lch, OMAP_DMA_CONSTANT_FILL, 0x000000);
289
290 omap_start_dma(lch);
291
292 if (wait_for_completion_timeout(&compl, msecs_to_jiffies(1000)) == 0) {
293 omap_stop_dma(lch);
294 pr_err("VRAM: dma timeout while clearing memory\n");
295 r = -EIO;
296 goto err;
297 }
298
299 r = 0;
300err:
301 omap_free_dma(lch);
302
303 return r;
304}
305
306static int _omap_vram_alloc(unsigned pages, unsigned long *paddr) 252static int _omap_vram_alloc(unsigned pages, unsigned long *paddr)
307{ 253{
308 struct vram_region *rm; 254 struct vram_region *rm;
@@ -337,8 +283,6 @@ found:
337 283
338 *paddr = start; 284 *paddr = start;
339 285
340 _omap_vram_clear(start, pages);
341
342 return 0; 286 return 0;
343 } 287 }
344 288