389 static void sdc_enable_channel(struct mx3fb_info *mx3_fbi)  in sdc_enable_channel()  argument
391 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;  in sdc_enable_channel()
392 	struct idmac_channel *ichan = mx3_fbi->idmac_channel;  in sdc_enable_channel()
397 	if (mx3_fbi->txd)  in sdc_enable_channel()
398 		dev_dbg(mx3fb->dev, "mx3fbi %p, desc %p, sg %p\n", mx3_fbi,  in sdc_enable_channel()
399 			to_tx_desc(mx3_fbi->txd), to_tx_desc(mx3_fbi->txd)->sg);  in sdc_enable_channel()
401 		dev_dbg(mx3fb->dev, "mx3fbi %p, txd = NULL\n", mx3_fbi);  in sdc_enable_channel()
404 	if (mx3_fbi->cookie < 0) {  in sdc_enable_channel()
405 		mx3_fbi->txd = dmaengine_prep_slave_sg(dma_chan,  in sdc_enable_channel()
406 		      &mx3_fbi->sg[0], 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT);  in sdc_enable_channel()
407 		if (!mx3_fbi->txd) {  in sdc_enable_channel()
413 		mx3_fbi->txd->callback_param	= mx3_fbi->txd;  in sdc_enable_channel()
414 		mx3_fbi->txd->callback		= mx3fb_dma_done;  in sdc_enable_channel()
416 		cookie = mx3_fbi->txd->tx_submit(mx3_fbi->txd);  in sdc_enable_channel()
418 		       mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+');  in sdc_enable_channel()
420 		if (!mx3_fbi->txd || !mx3_fbi->txd->tx_submit) {  in sdc_enable_channel()
428 		cookie = mx3_fbi->cookie;  in sdc_enable_channel()
430 		       mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+');  in sdc_enable_channel()
435 		sdc_fb_init(mx3_fbi);  in sdc_enable_channel()
436 		mx3_fbi->cookie = cookie;  in sdc_enable_channel()
448 static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)  in sdc_disable_channel()  argument
450 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;  in sdc_disable_channel()
454 	if (mx3_fbi->txd == NULL)  in sdc_disable_channel()
459 	enabled = sdc_fb_uninit(mx3_fbi);  in sdc_disable_channel()
463 	dmaengine_terminate_all(mx3_fbi->txd->chan);  in sdc_disable_channel()
464 	mx3_fbi->txd = NULL;  in sdc_disable_channel()
465 	mx3_fbi->cookie = -EINVAL;  in sdc_disable_channel()
765 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;  in mx3fb_dma_done()  local
772 	complete(&mx3_fbi->flip_cmpl);  in mx3fb_dma_done()
777 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_must_set_par()  local
778 	struct fb_var_screeninfo old_var = mx3_fbi->cur_var;  in mx3fb_must_set_par()
800 	struct mx3fb_info *mx3_fbi = fbi->par;  in __set_par()  local
801 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;  in __set_par()
802 	struct idmac_channel *ichan = mx3_fbi->idmac_channel;  in __set_par()
804 	struct scatterlist *sg = mx3_fbi->sg;  in __set_par()
807 	if (mx3_fbi->txd)  in __set_par()
808 		sdc_disable_channel(mx3_fbi);  in __set_par()
829 	if (mx3_fbi->ipu_ch == IDMAC_SDC_0) {  in __set_par()
868 	sdc_set_window_pos(mx3fb, mx3_fbi->ipu_ch, 0, 0);  in __set_par()
870 	mx3_fbi->cur_ipu_buf	= 0;  in __set_par()
877 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {  in __set_par()
878 		sdc_enable_channel(mx3_fbi);  in __set_par()
883 		mx3_fbi->cur_var.xoffset = 0;  in __set_par()
884 		mx3_fbi->cur_var.yoffset = 0;  in __set_par()
891 	cur_xoffset = mx3_fbi->cur_var.xoffset;  in __set_par()
892 	cur_yoffset = mx3_fbi->cur_var.yoffset;  in __set_par()
893 	mx3_fbi->cur_var = fbi->var;  in __set_par()
894 	mx3_fbi->cur_var.xoffset = cur_xoffset;  in __set_par()
895 	mx3_fbi->cur_var.yoffset = cur_yoffset;  in __set_par()
907 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_set_par()  local
908 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;  in mx3fb_set_par()
909 	struct idmac_channel *ichan = mx3_fbi->idmac_channel;  in mx3fb_set_par()
914 	mutex_lock(&mx3_fbi->mutex);  in mx3fb_set_par()
918 	mutex_unlock(&mx3_fbi->mutex);  in mx3fb_set_par()
930 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_check_var()  local
1015 	var->sync |= mx3_fbi->cur_var.sync;  in mx3fb_check_var()
1016 	mx3_fbi->cur_var.sync |= var->sync;  in mx3fb_check_var()
1032 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_setcolreg()  local
1038 	mutex_lock(&mx3_fbi->mutex);  in mx3fb_setcolreg()
1069 	mutex_unlock(&mx3_fbi->mutex);  in mx3fb_setcolreg()
1076 	struct mx3fb_info *mx3_fbi = fbi->par;  in __blank()  local
1077 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;  in __blank()
1078 	int was_blank = mx3_fbi->blank;  in __blank()
1080 	mx3_fbi->blank = blank;  in __blank()
1100 		sdc_disable_channel(mx3_fbi);  in __blank()
1103 		sdc_enable_channel(mx3_fbi);  in __blank()
1114 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_blank()  local
1119 	if (mx3_fbi->blank == blank)  in mx3fb_blank()
1122 	mutex_lock(&mx3_fbi->mutex);  in mx3fb_blank()
1124 	mutex_unlock(&mx3_fbi->mutex);  in mx3fb_blank()
1139 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_pan_display()  local
1144 	struct scatterlist *sg = mx3_fbi->sg;  in mx3fb_pan_display()
1145 	struct dma_chan *dma_chan = &mx3_fbi->idmac_channel->dma_chan;  in mx3fb_pan_display()
1150 		list_empty(&mx3_fbi->idmac_channel->queue) ? '-' : '+');  in mx3fb_pan_display()
1157 	if (mx3_fbi->cur_var.xoffset == var->xoffset &&  in mx3fb_pan_display()
1158 	    mx3_fbi->cur_var.yoffset == var->yoffset)  in mx3fb_pan_display()
1169 	mutex_lock(&mx3_fbi->mutex);  in mx3fb_pan_display()
1176 		mx3_fbi->cur_ipu_buf, base);  in mx3fb_pan_display()
1183 	init_completion(&mx3_fbi->flip_cmpl);  in mx3fb_pan_display()
1184 	enable_irq(mx3_fbi->idmac_channel->eof_irq);  in mx3fb_pan_display()
1186 	ret = wait_for_completion_timeout(&mx3_fbi->flip_cmpl, HZ / 10);  in mx3fb_pan_display()
1188 		mutex_unlock(&mx3_fbi->mutex);  in mx3fb_pan_display()
1191 		disable_irq(mx3_fbi->idmac_channel->eof_irq);  in mx3fb_pan_display()
1195 	mx3_fbi->cur_ipu_buf = !mx3_fbi->cur_ipu_buf;  in mx3fb_pan_display()
1197 	sg_dma_address(&sg[mx3_fbi->cur_ipu_buf]) = base;  in mx3fb_pan_display()
1198 	sg_set_page(&sg[mx3_fbi->cur_ipu_buf],  in mx3fb_pan_display()
1202 	if (mx3_fbi->txd)  in mx3fb_pan_display()
1203 		async_tx_ack(mx3_fbi->txd);  in mx3fb_pan_display()
1206 		mx3_fbi->cur_ipu_buf, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT);  in mx3fb_pan_display()
1210 		mutex_unlock(&mx3_fbi->mutex);  in mx3fb_pan_display()
1226 			mx3_fbi->cur_ipu_buf, base);  in mx3fb_pan_display()
1227 		mutex_unlock(&mx3_fbi->mutex);  in mx3fb_pan_display()
1231 	mx3_fbi->txd = txd;  in mx3fb_pan_display()
1241 	mx3_fbi->cur_var = fbi->var;  in mx3fb_pan_display()
1243 	mutex_unlock(&mx3_fbi->mutex);  in mx3fb_pan_display()
1279 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;  in mx3fb_suspend()  local
1285 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {  in mx3fb_suspend()
1286 		sdc_disable_channel(mx3_fbi);  in mx3fb_suspend()
1299 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;  in mx3fb_resume()  local
1301 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {  in mx3fb_resume()
1302 		sdc_enable_channel(mx3_fbi);  in mx3fb_resume()
1630 	struct mx3fb_info *mx3_fbi = fbi->par;  in mx3fb_remove()  local
1633 	chan = &mx3_fbi->idmac_channel->dma_chan;  in mx3fb_remove()