18  * Generic Interface (GENI) Serial Engine (SE) Wrapper driver is introduced
19  * to manage GENI firmware based Qualcomm Universal Peripheral (QUP) Wrapper
20  * controller. QUP Wrapper is designed to support various serial bus protocols
38  *                      |QUP Wrapper                              |
54  *                         Figure 1: GENI based QUP Wrapper
66  * GENI SE Wrapper driver is structured into 2 parts:
68  * geni_wrapper represents QUP Wrapper controller. This part of the driver
69  * manages QUP Wrapper information such as hardware version, clock
73  * engine information such as clocks, containing QUP Wrapper, etc. This part
83  * @struct geni_wrapper - Data structure to represent the QUP Wrapper Core
84  * @dev:		Device pointer of the QUP wrapper core
85  * @base:		Base address of this instance of QUP wrapper core
172  * geni_se_get_qup_hw_version() - Read the QUP wrapper Hardware version
175  * Return: Hardware Version of the wrapper.
179 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_get_qup_hw_version()  local
181 	return readl_relaxed(wrapper->base + QUP_HW_VER_REG);  in geni_se_get_qup_hw_version()
434 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_clks_off()  local
437 	clk_bulk_disable_unprepare(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_off()
438 						wrapper->ahb_clks);  in geni_se_clks_off()
464 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_clks_on()  local
466 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_on()
467 						wrapper->ahb_clks);  in geni_se_clks_on()
473 		clk_bulk_disable_unprepare(ARRAY_SIZE(wrapper->ahb_clks),  in geni_se_clks_on()
474 							wrapper->ahb_clks);  in geni_se_clks_on()
622 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_tx_dma_prep()  local
625 	*iova = dma_map_single(wrapper->dev, buf, len, DMA_TO_DEVICE);  in geni_se_tx_dma_prep()
626 	if (dma_mapping_error(wrapper->dev, *iova))  in geni_se_tx_dma_prep()
655 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_rx_dma_prep()  local
658 	*iova = dma_map_single(wrapper->dev, buf, len, DMA_FROM_DEVICE);  in geni_se_rx_dma_prep()
659 	if (dma_mapping_error(wrapper->dev, *iova))  in geni_se_rx_dma_prep()
685 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_tx_dma_unprep()  local
687 	if (iova && !dma_mapping_error(wrapper->dev, iova))  in geni_se_tx_dma_unprep()
688 		dma_unmap_single(wrapper->dev, iova, len, DMA_TO_DEVICE);  in geni_se_tx_dma_unprep()
702 	struct geni_wrapper *wrapper = se->wrapper;  in geni_se_rx_dma_unprep()  local
704 	if (iova && !dma_mapping_error(wrapper->dev, iova))  in geni_se_rx_dma_unprep()
705 		dma_unmap_single(wrapper->dev, iova, len, DMA_FROM_DEVICE);  in geni_se_rx_dma_unprep()
713 	struct geni_wrapper *wrapper;  in geni_se_probe()  local
716 	wrapper = devm_kzalloc(dev, sizeof(*wrapper), GFP_KERNEL);  in geni_se_probe()
717 	if (!wrapper)  in geni_se_probe()
720 	wrapper->dev = dev;  in geni_se_probe()
722 	wrapper->base = devm_ioremap_resource(dev, res);  in geni_se_probe()
723 	if (IS_ERR(wrapper->base))  in geni_se_probe()
724 		return PTR_ERR(wrapper->base);  in geni_se_probe()
726 	wrapper->ahb_clks[0].id = "m-ahb";  in geni_se_probe()
727 	wrapper->ahb_clks[1].id = "s-ahb";  in geni_se_probe()
728 	ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks);  in geni_se_probe()
734 	dev_set_drvdata(dev, wrapper);  in geni_se_probe()