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regulator: wm831x-dcdc: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and properly handle failure to register one driver by unregistering all previously registered drivers. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -884,35 +884,22 @@ static struct platform_driver wm831x_epe_driver = {
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},
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};
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static struct platform_driver * const drivers[] = {
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&wm831x_buckv_driver,
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&wm831x_buckp_driver,
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&wm831x_boostp_driver,
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&wm831x_epe_driver,
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};
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static int __init wm831x_dcdc_init(void)
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{
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int ret;
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ret = platform_driver_register(&wm831x_buckv_driver);
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if (ret != 0)
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pr_err("Failed to register WM831x BUCKV driver: %d\n", ret);
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ret = platform_driver_register(&wm831x_buckp_driver);
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if (ret != 0)
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pr_err("Failed to register WM831x BUCKP driver: %d\n", ret);
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ret = platform_driver_register(&wm831x_boostp_driver);
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if (ret != 0)
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pr_err("Failed to register WM831x BOOST driver: %d\n", ret);
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ret = platform_driver_register(&wm831x_epe_driver);
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if (ret != 0)
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pr_err("Failed to register WM831x EPE driver: %d\n", ret);
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return 0;
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return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
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}
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subsys_initcall(wm831x_dcdc_init);
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static void __exit wm831x_dcdc_exit(void)
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{
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platform_driver_unregister(&wm831x_epe_driver);
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platform_driver_unregister(&wm831x_boostp_driver);
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platform_driver_unregister(&wm831x_buckp_driver);
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platform_driver_unregister(&wm831x_buckv_driver);
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platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
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}
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module_exit(wm831x_dcdc_exit);
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