44 	struct lpc18xx_dmamux_data *dmamux = dev_get_drvdata(dev);  in lpc18xx_dmamux_free()  local
48 	spin_lock_irqsave(&dmamux->lock, flags);  in lpc18xx_dmamux_free()
50 	spin_unlock_irqrestore(&dmamux->lock, flags);  in lpc18xx_dmamux_free()
57 	struct lpc18xx_dmamux_data *dmamux = platform_get_drvdata(pdev);  in lpc18xx_dmamux_reserve()  local
67 	if (mux >= dmamux->dma_master_requests) {  in lpc18xx_dmamux_reserve()
86 	spin_lock_irqsave(&dmamux->lock, flags);  in lpc18xx_dmamux_reserve()
87 	if (dmamux->muxes[mux].busy) {  in lpc18xx_dmamux_reserve()
88 		spin_unlock_irqrestore(&dmamux->lock, flags);  in lpc18xx_dmamux_reserve()
90 			mux, mux, dmamux->muxes[mux].value);  in lpc18xx_dmamux_reserve()
95 	dmamux->muxes[mux].busy = true;  in lpc18xx_dmamux_reserve()
96 	dmamux->muxes[mux].value = dma_spec->args[1];  in lpc18xx_dmamux_reserve()
98 	regmap_update_bits(dmamux->reg, LPC18XX_CREG_DMAMUX,  in lpc18xx_dmamux_reserve()
100 			   LPC18XX_DMAMUX_VAL(dmamux->muxes[mux].value, mux));  in lpc18xx_dmamux_reserve()
101 	spin_unlock_irqrestore(&dmamux->lock, flags);  in lpc18xx_dmamux_reserve()
107 		dmamux->muxes[mux].value, mux);  in lpc18xx_dmamux_reserve()
109 	return &dmamux->muxes[mux];  in lpc18xx_dmamux_reserve()
115 	struct lpc18xx_dmamux_data *dmamux;  in lpc18xx_dmamux_probe()  local
118 	dmamux = devm_kzalloc(&pdev->dev, sizeof(*dmamux), GFP_KERNEL);  in lpc18xx_dmamux_probe()
119 	if (!dmamux)  in lpc18xx_dmamux_probe()
122 	dmamux->reg = syscon_regmap_lookup_by_compatible("nxp,lpc1850-creg");  in lpc18xx_dmamux_probe()
123 	if (IS_ERR(dmamux->reg)) {  in lpc18xx_dmamux_probe()
125 		return PTR_ERR(dmamux->reg);  in lpc18xx_dmamux_probe()
129 				   &dmamux->dma_mux_requests);  in lpc18xx_dmamux_probe()
142 				   &dmamux->dma_master_requests);  in lpc18xx_dmamux_probe()
149 	dmamux->muxes = devm_kcalloc(&pdev->dev, dmamux->dma_master_requests,  in lpc18xx_dmamux_probe()
152 	if (!dmamux->muxes)  in lpc18xx_dmamux_probe()
155 	spin_lock_init(&dmamux->lock);  in lpc18xx_dmamux_probe()
156 	platform_set_drvdata(pdev, dmamux);  in lpc18xx_dmamux_probe()
157 	dmamux->dmarouter.dev = &pdev->dev;  in lpc18xx_dmamux_probe()
158 	dmamux->dmarouter.route_free = lpc18xx_dmamux_free;  in lpc18xx_dmamux_probe()
161 				      &dmamux->dmarouter);  in lpc18xx_dmamux_probe()