27 	struct mt6323_pwrc *pwrc = data->cb_data;  in mt6323_do_pwroff()  local
31 	regmap_write(pwrc->regmap, pwrc->base + RTC_BBPU, RTC_BBPU_KEY);  in mt6323_do_pwroff()
32 	regmap_write(pwrc->regmap, pwrc->base + RTC_WRTGR_MT6323, 1);  in mt6323_do_pwroff()
34 	ret = regmap_read_poll_timeout(pwrc->regmap,  in mt6323_do_pwroff()
35 					pwrc->base + RTC_BBPU, val,  in mt6323_do_pwroff()
40 		dev_err(pwrc->dev, "failed to write BBPU: %d\n", ret);  in mt6323_do_pwroff()
53 	struct mt6323_pwrc *pwrc;  in mt6323_pwrc_probe()  local
57 	pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);  in mt6323_pwrc_probe()
58 	if (!pwrc)  in mt6323_pwrc_probe()
65 	pwrc->base = res->start;  in mt6323_pwrc_probe()
66 	pwrc->regmap = mt6397_chip->regmap;  in mt6323_pwrc_probe()
67 	pwrc->dev = &pdev->dev;  in mt6323_pwrc_probe()
69 	ret = devm_register_sys_off_handler(pwrc->dev,  in mt6323_pwrc_probe()
73 					    pwrc);  in mt6323_pwrc_probe()
75 		return dev_err_probe(pwrc->dev, ret, "failed to register power-off handler\n");  in mt6323_pwrc_probe()
81 	{ .compatible = "mediatek,mt6323-pwrc" },
89 		.name   = "mt6323-pwrc",