62 	struct stm32_dmamux_data *dmamux = dev_get_drvdata(dev);  in stm32_dmamux_free()  local
67 	spin_lock_irqsave(&dmamux->lock, flags);  in stm32_dmamux_free()
69 	stm32_dmamux_write(dmamux->iomem, STM32_DMAMUX_CCR(mux->chan_id), 0);  in stm32_dmamux_free()
70 	clear_bit(mux->chan_id, dmamux->dma_inuse);  in stm32_dmamux_free()
74 	spin_unlock_irqrestore(&dmamux->lock, flags);  in stm32_dmamux_free()
86 	struct stm32_dmamux_data *dmamux = platform_get_drvdata(pdev);  in stm32_dmamux_route_allocate()  local
97 	if (dma_spec->args[0] > dmamux->dmamux_requests) {  in stm32_dmamux_route_allocate()
107 	spin_lock_irqsave(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
108 	mux->chan_id = find_first_zero_bit(dmamux->dma_inuse,  in stm32_dmamux_route_allocate()
109 					   dmamux->dma_requests);  in stm32_dmamux_route_allocate()
111 	if (mux->chan_id == dmamux->dma_requests) {  in stm32_dmamux_route_allocate()
112 		spin_unlock_irqrestore(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
117 	set_bit(mux->chan_id, dmamux->dma_inuse);  in stm32_dmamux_route_allocate()
118 	spin_unlock_irqrestore(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
121 	for (i = 1, min = 0, max = dmamux->dma_reqs[i];  in stm32_dmamux_route_allocate()
122 	     i <= dmamux->dma_reqs[0];  in stm32_dmamux_route_allocate()
123 	     min += dmamux->dma_reqs[i], max += dmamux->dma_reqs[++i])  in stm32_dmamux_route_allocate()
137 	spin_lock_irqsave(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
140 		spin_unlock_irqrestore(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
143 	spin_unlock_irqrestore(&dmamux->lock, flags);  in stm32_dmamux_route_allocate()
154 	stm32_dmamux_write(dmamux->iomem, STM32_DMAMUX_CCR(mux->chan_id),  in stm32_dmamux_route_allocate()
162 	clear_bit(mux->chan_id, dmamux->dma_inuse);  in stm32_dmamux_route_allocate()