| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Smart reflex Class 3 specific implementations |
| * |
| * Author: Thara Gopinath <thara@ti.com> |
| * |
| * Copyright (C) 2010 Texas Instruments, Inc. |
| * Thara Gopinath <thara@ti.com> |
| */ |
| |
| #include <linux/power/smartreflex.h> |
| #include "soc.h" |
| #include "voltage.h" |
| |
| static int sr_class3_enable(struct omap_sr *sr) |
| { |
| unsigned long volt = voltdm_get_voltage(sr->voltdm); |
| |
| if (!volt) { |
| pr_warn("%s: Curr voltage unknown. Cannot enable %s\n", |
| __func__, sr->name); |
| return -ENODATA; |
| } |
| |
| omap_vp_enable(sr->voltdm); |
| return sr_enable(sr, volt); |
| } |
| |
| static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset) |
| { |
| sr_disable_errgen(sr); |
| omap_vp_disable(sr->voltdm); |
| sr_disable(sr); |
| if (is_volt_reset) |
| voltdm_reset(sr->voltdm); |
| |
| return 0; |
| } |
| |
| static int sr_class3_configure(struct omap_sr *sr) |
| { |
| return sr_configure_errgen(sr); |
| } |
| |
| /* SR class3 structure */ |
| static struct omap_sr_class_data class3_data = { |
| .enable = sr_class3_enable, |
| .disable = sr_class3_disable, |
| .configure = sr_class3_configure, |
| .class_type = SR_CLASS3, |
| }; |
| |
| /* Smartreflex Class3 init API to be called from board file */ |
| static int __init sr_class3_init(void) |
| { |
| pr_info("SmartReflex Class3 initialized\n"); |
| return sr_register_class(&class3_data); |
| } |
| omap_late_initcall(sr_class3_init); |