19  * Generic Interface (GENI) Serial Engine (SE) Wrapper driver is introduced
20  * to manage GENI firmware based Qualcomm Universal Peripheral (QUP) Wrapper
21  * controller. QUP Wrapper is designed to support various serial bus protocols
39  *                      |QUP Wrapper                              |
55  *                         Figure 1: GENI based QUP Wrapper
67  * GENI SE Wrapper driver is structured into 2 parts:
69  * geni_wrapper represents QUP Wrapper controller. This part of the driver
70  * manages QUP Wrapper information such as hardware version, clock
74  * engine information such as clocks, containing QUP Wrapper, etc. This part
84  * @struct geni_wrapper - Data structure to represent the QUP Wrapper Core
85  * @dev:		Device pointer of the QUP wrapper core
86  * @base:		Base address of this instance of QUP wrapper core
176  * geni_se_get_qup_hw_version() - Read the QUP wrapper Hardware version
179  * Return: Hardware Version of the wrapper.
183 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_get_qup_hw_version()  local
185 	return readl_relaxed(wrapper->base + QUP_HW_VER_REG);  in geni_se_get_qup_hw_version()
452 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_clks_off()  local
455 	clk_bulk_disable_unprepare(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_off()
456 						wrapper->ahb_clks);  in geni_se_clks_off()
485 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_clks_on()  local
487 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_on()
488 						wrapper->ahb_clks);  in geni_se_clks_on()
494 		clk_bulk_disable_unprepare(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_on()
495 							wrapper->ahb_clks);  in geni_se_clks_on()
646 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_tx_dma_prep()  local
649 	if (!wrapper)  in geni_se_tx_dma_prep()
652 	*iova = dma_map_single(wrapper->dev, buf, len, DMA_TO_DEVICE);  in geni_se_tx_dma_prep()
653 	if (dma_mapping_error(wrapper->dev, *iova))  in geni_se_tx_dma_prep()
682 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_rx_dma_prep()  local
685 	if (!wrapper)  in geni_se_rx_dma_prep()
688 	*iova = dma_map_single(wrapper->dev, buf, len, DMA_FROM_DEVICE);  in geni_se_rx_dma_prep()
689 	if (dma_mapping_error(wrapper->dev, *iova))  in geni_se_rx_dma_prep()
715 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_tx_dma_unprep()  local
717 	if (iova && !dma_mapping_error(wrapper->dev, iova))  in geni_se_tx_dma_unprep()
718 		dma_unmap_single(wrapper->dev, iova, len, DMA_TO_DEVICE);  in geni_se_tx_dma_unprep()
732 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_rx_dma_unprep()  local
734 	if (iova && !dma_mapping_error(wrapper->dev, iova))  in geni_se_rx_dma_unprep()
735 		dma_unmap_single(wrapper->dev, iova, len, DMA_FROM_DEVICE);  in geni_se_rx_dma_unprep()
834 	struct geni_wrapper *wrapper;  in geni_se_probe()  local
837 	wrapper = devm_kzalloc(dev, sizeof(*wrapper), GFP_KERNEL);  in geni_se_probe()
838 	if (!wrapper)  in geni_se_probe()
841 	wrapper->dev = dev;  in geni_se_probe()
843 	wrapper->base = devm_ioremap_resource(dev, res);  in geni_se_probe()
844 	if (IS_ERR(wrapper->base))  in geni_se_probe()
845 		return PTR_ERR(wrapper->base);  in geni_se_probe()
848 		wrapper->ahb_clks[0].id = "m-ahb";  in geni_se_probe()
849 		wrapper->ahb_clks[1].id = "s-ahb";  in geni_se_probe()
850 		ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks);  in geni_se_probe()
857 	dev_set_drvdata(dev, wrapper);  in geni_se_probe()