drivers/memory/pl353-smc.c

1 // SPDX-License-Identifier: GPL-2.0
3  * ARM PL353 SMC driver
5  * Copyright (C) 2012 - 2018 Xilinx, Inc
19  * struct pl353_smc_data - Private smc driver structure
32 	clk_disable(pl353_smc->memclk);  in pl353_smc_suspend()
33 	clk_disable(pl353_smc->aclk);  in pl353_smc_suspend()
43 	ret = clk_enable(pl353_smc->aclk);  in pl353_smc_resume()
49 	ret = clk_enable(pl353_smc->memclk);  in pl353_smc_resume()
52 		clk_disable(pl353_smc->aclk);  in pl353_smc_resume()
64 		.compatible = "cfi-flash"
67 		.compatible = "arm,pl353-nand-r2p1",
74 	struct device_node *of_node = adev->dev.of_node;  in pl353_smc_probe()
78 	pl353_smc = devm_kzalloc(&adev->dev, sizeof(*pl353_smc), GFP_KERNEL);  in pl353_smc_probe()
80 		return -ENOMEM;  in pl353_smc_probe()
82 	pl353_smc->aclk = devm_clk_get_enabled(&adev->dev, "apb_pclk");  in pl353_smc_probe()
83 	if (IS_ERR(pl353_smc->aclk))  in pl353_smc_probe()
84 		return dev_err_probe(&adev->dev, PTR_ERR(pl353_smc->aclk),  in pl353_smc_probe()
87 	pl353_smc->memclk = devm_clk_get_enabled(&adev->dev, "memclk");  in pl353_smc_probe()
88 	if (IS_ERR(pl353_smc->memclk))  in pl353_smc_probe()
89 		return dev_err_probe(&adev->dev, PTR_ERR(pl353_smc->memclk),  in pl353_smc_probe()
98 			dev_warn(&adev->dev, "unsupported child node\n");  in pl353_smc_probe()
101 		of_platform_device_create(child, NULL, &adev->dev);  in pl353_smc_probe()
105 		dev_err(&adev->dev, "no matching children\n");  in pl353_smc_probe()
106 		return -ENODEV;  in pl353_smc_probe()
123 		.name = "pl353-smc",
133 MODULE_DESCRIPTION("ARM PL353 SMC Driver");