158e21438SBjorn Andersson /* 258e21438SBjorn Andersson * Copyright (c) 2014, Sony Mobile Communications AB. 358e21438SBjorn Andersson * Copyright (c) 2013, The Linux Foundation. All rights reserved. 458e21438SBjorn Andersson * Author: Bjorn Andersson <bjorn.andersson@sonymobile.com> 558e21438SBjorn Andersson * 658e21438SBjorn Andersson * This program is free software; you can redistribute it and/or modify 758e21438SBjorn Andersson * it under the terms of the GNU General Public License version 2 and 858e21438SBjorn Andersson * only version 2 as published by the Free Software Foundation. 958e21438SBjorn Andersson * 1058e21438SBjorn Andersson * This program is distributed in the hope that it will be useful, 1158e21438SBjorn Andersson * but WITHOUT ANY WARRANTY; without even the implied warranty of 1258e21438SBjorn Andersson * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1358e21438SBjorn Andersson * GNU General Public License for more details. 1458e21438SBjorn Andersson */ 1558e21438SBjorn Andersson 1658e21438SBjorn Andersson #include <linux/module.h> 1758e21438SBjorn Andersson #include <linux/platform_device.h> 1858e21438SBjorn Andersson #include <linux/of_platform.h> 1958e21438SBjorn Andersson #include <linux/io.h> 2058e21438SBjorn Andersson #include <linux/interrupt.h> 2158e21438SBjorn Andersson #include <linux/mfd/qcom_rpm.h> 2258e21438SBjorn Andersson #include <linux/mfd/syscon.h> 2358e21438SBjorn Andersson #include <linux/regmap.h> 2458e21438SBjorn Andersson 2558e21438SBjorn Andersson #include <dt-bindings/mfd/qcom-rpm.h> 2658e21438SBjorn Andersson 2758e21438SBjorn Andersson struct qcom_rpm_resource { 2858e21438SBjorn Andersson unsigned target_id; 2958e21438SBjorn Andersson unsigned status_id; 3058e21438SBjorn Andersson unsigned select_id; 3158e21438SBjorn Andersson unsigned size; 3258e21438SBjorn Andersson }; 3358e21438SBjorn Andersson 3458e21438SBjorn Andersson struct qcom_rpm_data { 3558e21438SBjorn Andersson u32 version; 3658e21438SBjorn Andersson const struct qcom_rpm_resource *resource_table; 379835f1b7SLinus Walleij unsigned int n_resources; 389835f1b7SLinus Walleij unsigned int req_ctx_off; 399835f1b7SLinus Walleij unsigned int req_sel_off; 409835f1b7SLinus Walleij unsigned int ack_ctx_off; 419835f1b7SLinus Walleij unsigned int ack_sel_off; 429835f1b7SLinus Walleij unsigned int sel_size; 4358e21438SBjorn Andersson }; 4458e21438SBjorn Andersson 4558e21438SBjorn Andersson struct qcom_rpm { 4658e21438SBjorn Andersson struct device *dev; 4758e21438SBjorn Andersson struct regmap *ipc_regmap; 4858e21438SBjorn Andersson unsigned ipc_offset; 4958e21438SBjorn Andersson unsigned ipc_bit; 5058e21438SBjorn Andersson 5158e21438SBjorn Andersson struct completion ack; 5258e21438SBjorn Andersson struct mutex lock; 5358e21438SBjorn Andersson 5458e21438SBjorn Andersson void __iomem *status_regs; 5558e21438SBjorn Andersson void __iomem *ctrl_regs; 5658e21438SBjorn Andersson void __iomem *req_regs; 5758e21438SBjorn Andersson 5858e21438SBjorn Andersson u32 ack_status; 5958e21438SBjorn Andersson 6058e21438SBjorn Andersson const struct qcom_rpm_data *data; 6158e21438SBjorn Andersson }; 6258e21438SBjorn Andersson 6358e21438SBjorn Andersson #define RPM_STATUS_REG(rpm, i) ((rpm)->status_regs + (i) * 4) 6458e21438SBjorn Andersson #define RPM_CTRL_REG(rpm, i) ((rpm)->ctrl_regs + (i) * 4) 6558e21438SBjorn Andersson #define RPM_REQ_REG(rpm, i) ((rpm)->req_regs + (i) * 4) 6658e21438SBjorn Andersson 6758e21438SBjorn Andersson #define RPM_REQUEST_TIMEOUT (5 * HZ) 6858e21438SBjorn Andersson 699835f1b7SLinus Walleij #define RPM_MAX_SEL_SIZE 7 7058e21438SBjorn Andersson 7158e21438SBjorn Andersson #define RPM_NOTIFICATION BIT(30) 7258e21438SBjorn Andersson #define RPM_REJECTED BIT(31) 7358e21438SBjorn Andersson 7458e21438SBjorn Andersson #define RPM_SIGNAL BIT(2) 7558e21438SBjorn Andersson 7658e21438SBjorn Andersson static const struct qcom_rpm_resource apq8064_rpm_resource_table[] = { 7758e21438SBjorn Andersson [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, 7858e21438SBjorn Andersson [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, 7958e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, 8058e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, 8158e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, 8258e21438SBjorn Andersson [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, 8358e21438SBjorn Andersson [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, 8458e21438SBjorn Andersson [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, 8558e21438SBjorn Andersson [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, 8658e21438SBjorn Andersson [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, 8758e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, 8858e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, 8958e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, 9058e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, 9158e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, 9258e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, 9358e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, 9458e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 }, 9558e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 1 }, 9658e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 1 }, 9758e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 }, 9858e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 21 }, 9958e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS1] = { 116, 31, 30, 2 }, 10058e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS2] = { 118, 33, 31, 2 }, 10158e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS3] = { 120, 35, 32, 2 }, 10258e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS4] = { 122, 37, 33, 2 }, 10358e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS5] = { 124, 39, 34, 2 }, 10458e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS6] = { 126, 41, 35, 2 }, 10558e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS7] = { 128, 43, 36, 2 }, 10658e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS8] = { 130, 45, 37, 2 }, 10758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO1] = { 132, 47, 38, 2 }, 10858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO2] = { 134, 49, 39, 2 }, 10958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO3] = { 136, 51, 40, 2 }, 11058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO4] = { 138, 53, 41, 2 }, 11158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO5] = { 140, 55, 42, 2 }, 11258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO6] = { 142, 57, 43, 2 }, 11358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO7] = { 144, 59, 44, 2 }, 11458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO8] = { 146, 61, 45, 2 }, 11558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO9] = { 148, 63, 46, 2 }, 11658e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO10] = { 150, 65, 47, 2 }, 11758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO11] = { 152, 67, 48, 2 }, 11858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO12] = { 154, 69, 49, 2 }, 11958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO13] = { 156, 71, 50, 2 }, 12058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO14] = { 158, 73, 51, 2 }, 12158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO15] = { 160, 75, 52, 2 }, 12258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO16] = { 162, 77, 53, 2 }, 12358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO17] = { 164, 79, 54, 2 }, 12458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO18] = { 166, 81, 55, 2 }, 12558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO19] = { 168, 83, 56, 2 }, 12658e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO20] = { 170, 85, 57, 2 }, 12758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO21] = { 172, 87, 58, 2 }, 12858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO22] = { 174, 89, 59, 2 }, 12958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO23] = { 176, 91, 60, 2 }, 13058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO24] = { 178, 93, 61, 2 }, 13158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO25] = { 180, 95, 62, 2 }, 13258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO26] = { 182, 97, 63, 2 }, 13358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO27] = { 184, 99, 64, 2 }, 13458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO28] = { 186, 101, 65, 2 }, 13558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO29] = { 188, 103, 66, 2 }, 13658e21438SBjorn Andersson [QCOM_RPM_PM8921_CLK1] = { 190, 105, 67, 2 }, 13758e21438SBjorn Andersson [QCOM_RPM_PM8921_CLK2] = { 192, 107, 68, 2 }, 13858e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS1] = { 194, 109, 69, 1 }, 13958e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS2] = { 195, 110, 70, 1 }, 14058e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS3] = { 196, 111, 71, 1 }, 14158e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS4] = { 197, 112, 72, 1 }, 14258e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS5] = { 198, 113, 73, 1 }, 14358e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS6] = { 199, 114, 74, 1 }, 14458e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS7] = { 200, 115, 75, 1 }, 14558e21438SBjorn Andersson [QCOM_RPM_PM8821_SMPS1] = { 201, 116, 76, 2 }, 14658e21438SBjorn Andersson [QCOM_RPM_PM8821_SMPS2] = { 203, 118, 77, 2 }, 14758e21438SBjorn Andersson [QCOM_RPM_PM8821_LDO1] = { 205, 120, 78, 2 }, 14858e21438SBjorn Andersson [QCOM_RPM_PM8921_NCP] = { 207, 122, 80, 2 }, 14958e21438SBjorn Andersson [QCOM_RPM_CXO_BUFFERS] = { 209, 124, 81, 1 }, 15058e21438SBjorn Andersson [QCOM_RPM_USB_OTG_SWITCH] = { 210, 125, 82, 1 }, 15158e21438SBjorn Andersson [QCOM_RPM_HDMI_SWITCH] = { 211, 126, 83, 1 }, 15258e21438SBjorn Andersson [QCOM_RPM_DDR_DMM] = { 212, 127, 84, 2 }, 15351d0eb81SIvan T. Ivanov [QCOM_RPM_QDSS_CLK] = { 214, ~0, 7, 1 }, 15458e21438SBjorn Andersson [QCOM_RPM_VDDMIN_GPIO] = { 215, 131, 89, 1 }, 15558e21438SBjorn Andersson }; 15658e21438SBjorn Andersson 15758e21438SBjorn Andersson static const struct qcom_rpm_data apq8064_template = { 15858e21438SBjorn Andersson .version = 3, 15958e21438SBjorn Andersson .resource_table = apq8064_rpm_resource_table, 16058e21438SBjorn Andersson .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table), 1619835f1b7SLinus Walleij .req_ctx_off = 3, 1629835f1b7SLinus Walleij .req_sel_off = 11, 1639835f1b7SLinus Walleij .ack_ctx_off = 15, 1649835f1b7SLinus Walleij .ack_sel_off = 23, 1659835f1b7SLinus Walleij .sel_size = 4, 16658e21438SBjorn Andersson }; 16758e21438SBjorn Andersson 16858e21438SBjorn Andersson static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = { 16958e21438SBjorn Andersson [QCOM_RPM_CXO_CLK] = { 32, 12, 5, 1 }, 17058e21438SBjorn Andersson [QCOM_RPM_PXO_CLK] = { 33, 13, 6, 1 }, 17158e21438SBjorn Andersson [QCOM_RPM_PLL_4] = { 34, 14, 7, 1 }, 17258e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_CLK] = { 35, 15, 8, 1 }, 17358e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_CLK] = { 36, 16, 9, 1 }, 17458e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_CLK] = { 37, 17, 10, 1 }, 17558e21438SBjorn Andersson [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 38, 18, 11, 1 }, 17658e21438SBjorn Andersson [QCOM_RPM_SFPB_CLK] = { 39, 19, 12, 1 }, 17758e21438SBjorn Andersson [QCOM_RPM_CFPB_CLK] = { 40, 20, 13, 1 }, 17858e21438SBjorn Andersson [QCOM_RPM_MMFPB_CLK] = { 41, 21, 14, 1 }, 17958e21438SBjorn Andersson [QCOM_RPM_SMI_CLK] = { 42, 22, 15, 1 }, 18058e21438SBjorn Andersson [QCOM_RPM_EBI1_CLK] = { 43, 23, 16, 1 }, 18158e21438SBjorn Andersson [QCOM_RPM_APPS_L2_CACHE_CTL] = { 44, 24, 17, 1 }, 18258e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_HALT] = { 45, 25, 18, 2 }, 18358e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_MODE] = { 47, 26, 19, 3 }, 18458e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_ARB] = { 51, 28, 21, 6 }, 18558e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_HALT] = { 63, 29, 22, 2 }, 18658e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_MODE] = { 65, 30, 23, 3 }, 18758e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_ARB] = { 69, 32, 25, 22 }, 18858e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_HALT] = { 105, 33, 26, 2 }, 18958e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_MODE] = { 107, 34, 27, 3 }, 19058e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_ARB] = { 111, 36, 29, 23 }, 19158e21438SBjorn Andersson [QCOM_RPM_PM8901_SMPS0] = { 134, 37, 30, 2 }, 19258e21438SBjorn Andersson [QCOM_RPM_PM8901_SMPS1] = { 136, 39, 31, 2 }, 19358e21438SBjorn Andersson [QCOM_RPM_PM8901_SMPS2] = { 138, 41, 32, 2 }, 19458e21438SBjorn Andersson [QCOM_RPM_PM8901_SMPS3] = { 140, 43, 33, 2 }, 19558e21438SBjorn Andersson [QCOM_RPM_PM8901_SMPS4] = { 142, 45, 34, 2 }, 19658e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO0] = { 144, 47, 35, 2 }, 19758e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO1] = { 146, 49, 36, 2 }, 19858e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO2] = { 148, 51, 37, 2 }, 19958e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO3] = { 150, 53, 38, 2 }, 20058e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO4] = { 152, 55, 39, 2 }, 20158e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO5] = { 154, 57, 40, 2 }, 20258e21438SBjorn Andersson [QCOM_RPM_PM8901_LDO6] = { 156, 59, 41, 2 }, 20358e21438SBjorn Andersson [QCOM_RPM_PM8901_LVS0] = { 158, 61, 42, 1 }, 20458e21438SBjorn Andersson [QCOM_RPM_PM8901_LVS1] = { 159, 62, 43, 1 }, 20558e21438SBjorn Andersson [QCOM_RPM_PM8901_LVS2] = { 160, 63, 44, 1 }, 20658e21438SBjorn Andersson [QCOM_RPM_PM8901_LVS3] = { 161, 64, 45, 1 }, 20758e21438SBjorn Andersson [QCOM_RPM_PM8901_MVS] = { 162, 65, 46, 1 }, 20858e21438SBjorn Andersson [QCOM_RPM_PM8058_SMPS0] = { 163, 66, 47, 2 }, 20958e21438SBjorn Andersson [QCOM_RPM_PM8058_SMPS1] = { 165, 68, 48, 2 }, 21058e21438SBjorn Andersson [QCOM_RPM_PM8058_SMPS2] = { 167, 70, 49, 2 }, 21158e21438SBjorn Andersson [QCOM_RPM_PM8058_SMPS3] = { 169, 72, 50, 2 }, 21258e21438SBjorn Andersson [QCOM_RPM_PM8058_SMPS4] = { 171, 74, 51, 2 }, 21358e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO0] = { 173, 76, 52, 2 }, 21458e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO1] = { 175, 78, 53, 2 }, 21558e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO2] = { 177, 80, 54, 2 }, 21658e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO3] = { 179, 82, 55, 2 }, 21758e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO4] = { 181, 84, 56, 2 }, 21858e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO5] = { 183, 86, 57, 2 }, 21958e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO6] = { 185, 88, 58, 2 }, 22058e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO7] = { 187, 90, 59, 2 }, 22158e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO8] = { 189, 92, 60, 2 }, 22258e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO9] = { 191, 94, 61, 2 }, 22358e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO10] = { 193, 96, 62, 2 }, 22458e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO11] = { 195, 98, 63, 2 }, 22558e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO12] = { 197, 100, 64, 2 }, 22658e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO13] = { 199, 102, 65, 2 }, 22758e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO14] = { 201, 104, 66, 2 }, 22858e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO15] = { 203, 106, 67, 2 }, 22958e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO16] = { 205, 108, 68, 2 }, 23058e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO17] = { 207, 110, 69, 2 }, 23158e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO18] = { 209, 112, 70, 2 }, 23258e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO19] = { 211, 114, 71, 2 }, 23358e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO20] = { 213, 116, 72, 2 }, 23458e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO21] = { 215, 118, 73, 2 }, 23558e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO22] = { 217, 120, 74, 2 }, 23658e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO23] = { 219, 122, 75, 2 }, 23758e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO24] = { 221, 124, 76, 2 }, 23858e21438SBjorn Andersson [QCOM_RPM_PM8058_LDO25] = { 223, 126, 77, 2 }, 23958e21438SBjorn Andersson [QCOM_RPM_PM8058_LVS0] = { 225, 128, 78, 1 }, 24058e21438SBjorn Andersson [QCOM_RPM_PM8058_LVS1] = { 226, 129, 79, 1 }, 24158e21438SBjorn Andersson [QCOM_RPM_PM8058_NCP] = { 227, 130, 80, 2 }, 24258e21438SBjorn Andersson [QCOM_RPM_CXO_BUFFERS] = { 229, 132, 81, 1 }, 24358e21438SBjorn Andersson }; 24458e21438SBjorn Andersson 24558e21438SBjorn Andersson static const struct qcom_rpm_data msm8660_template = { 24658e21438SBjorn Andersson .version = 2, 24758e21438SBjorn Andersson .resource_table = msm8660_rpm_resource_table, 24858e21438SBjorn Andersson .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table), 2499835f1b7SLinus Walleij .req_ctx_off = 3, 2509835f1b7SLinus Walleij .req_sel_off = 11, 2519835f1b7SLinus Walleij .ack_ctx_off = 19, 2529835f1b7SLinus Walleij .ack_sel_off = 27, 2539835f1b7SLinus Walleij .sel_size = 7, 25458e21438SBjorn Andersson }; 25558e21438SBjorn Andersson 25658e21438SBjorn Andersson static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = { 25758e21438SBjorn Andersson [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, 25858e21438SBjorn Andersson [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, 25958e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, 26058e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, 26158e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, 26258e21438SBjorn Andersson [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, 26358e21438SBjorn Andersson [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, 26458e21438SBjorn Andersson [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, 26558e21438SBjorn Andersson [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, 26658e21438SBjorn Andersson [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, 26758e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, 26858e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, 26958e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, 27058e21438SBjorn Andersson [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, 27158e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, 27258e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, 27358e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, 27458e21438SBjorn Andersson [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 29 }, 27558e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_HALT] = { 88, 27, 26, 1 }, 27658e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_MODE] = { 90, 28, 27, 1 }, 27758e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_IOCTL] = { 93, 29, 28, 1 }, 27858e21438SBjorn Andersson [QCOM_RPM_MM_FABRIC_ARB] = { 94, 30, 29, 23 }, 27958e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS1] = { 117, 31, 30, 2 }, 28058e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS2] = { 119, 33, 31, 2 }, 28158e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS3] = { 121, 35, 32, 2 }, 28258e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS4] = { 123, 37, 33, 2 }, 28358e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS5] = { 125, 39, 34, 2 }, 28458e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS6] = { 127, 41, 35, 2 }, 28558e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS7] = { 129, 43, 36, 2 }, 28658e21438SBjorn Andersson [QCOM_RPM_PM8921_SMPS8] = { 131, 45, 37, 2 }, 28758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO1] = { 133, 47, 38, 2 }, 28858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO2] = { 135, 49, 39, 2 }, 28958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO3] = { 137, 51, 40, 2 }, 29058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO4] = { 139, 53, 41, 2 }, 29158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO5] = { 141, 55, 42, 2 }, 29258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO6] = { 143, 57, 43, 2 }, 29358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO7] = { 145, 59, 44, 2 }, 29458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO8] = { 147, 61, 45, 2 }, 29558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO9] = { 149, 63, 46, 2 }, 29658e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO10] = { 151, 65, 47, 2 }, 29758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO11] = { 153, 67, 48, 2 }, 29858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO12] = { 155, 69, 49, 2 }, 29958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO13] = { 157, 71, 50, 2 }, 30058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO14] = { 159, 73, 51, 2 }, 30158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO15] = { 161, 75, 52, 2 }, 30258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO16] = { 163, 77, 53, 2 }, 30358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO17] = { 165, 79, 54, 2 }, 30458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO18] = { 167, 81, 55, 2 }, 30558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO19] = { 169, 83, 56, 2 }, 30658e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO20] = { 171, 85, 57, 2 }, 30758e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO21] = { 173, 87, 58, 2 }, 30858e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO22] = { 175, 89, 59, 2 }, 30958e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO23] = { 177, 91, 60, 2 }, 31058e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO24] = { 179, 93, 61, 2 }, 31158e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO25] = { 181, 95, 62, 2 }, 31258e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO26] = { 183, 97, 63, 2 }, 31358e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO27] = { 185, 99, 64, 2 }, 31458e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO28] = { 187, 101, 65, 2 }, 31558e21438SBjorn Andersson [QCOM_RPM_PM8921_LDO29] = { 189, 103, 66, 2 }, 31658e21438SBjorn Andersson [QCOM_RPM_PM8921_CLK1] = { 191, 105, 67, 2 }, 31758e21438SBjorn Andersson [QCOM_RPM_PM8921_CLK2] = { 193, 107, 68, 2 }, 31858e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS1] = { 195, 109, 69, 1 }, 31958e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS2] = { 196, 110, 70, 1 }, 32058e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS3] = { 197, 111, 71, 1 }, 32158e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS4] = { 198, 112, 72, 1 }, 32258e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS5] = { 199, 113, 73, 1 }, 32358e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS6] = { 200, 114, 74, 1 }, 32458e21438SBjorn Andersson [QCOM_RPM_PM8921_LVS7] = { 201, 115, 75, 1 }, 32558e21438SBjorn Andersson [QCOM_RPM_PM8921_NCP] = { 202, 116, 80, 2 }, 32658e21438SBjorn Andersson [QCOM_RPM_CXO_BUFFERS] = { 204, 118, 81, 1 }, 32758e21438SBjorn Andersson [QCOM_RPM_USB_OTG_SWITCH] = { 205, 119, 82, 1 }, 32858e21438SBjorn Andersson [QCOM_RPM_HDMI_SWITCH] = { 206, 120, 83, 1 }, 32958e21438SBjorn Andersson [QCOM_RPM_DDR_DMM] = { 207, 121, 84, 2 }, 33058e21438SBjorn Andersson }; 33158e21438SBjorn Andersson 33258e21438SBjorn Andersson static const struct qcom_rpm_data msm8960_template = { 33358e21438SBjorn Andersson .version = 3, 33458e21438SBjorn Andersson .resource_table = msm8960_rpm_resource_table, 33558e21438SBjorn Andersson .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table), 3369835f1b7SLinus Walleij .req_ctx_off = 3, 3379835f1b7SLinus Walleij .req_sel_off = 11, 3389835f1b7SLinus Walleij .ack_ctx_off = 15, 3399835f1b7SLinus Walleij .ack_sel_off = 23, 3409835f1b7SLinus Walleij .sel_size = 4, 34158e21438SBjorn Andersson }; 34258e21438SBjorn Andersson 3434d54b0adSJosh Cartwright static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = { 3444d54b0adSJosh Cartwright [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, 3454d54b0adSJosh Cartwright [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, 3464d54b0adSJosh Cartwright [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, 3474d54b0adSJosh Cartwright [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, 3484d54b0adSJosh Cartwright [QCOM_RPM_NSS_FABRIC_0_CLK] = { 29, 13, 10, 1 }, 3494d54b0adSJosh Cartwright [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, 3504d54b0adSJosh Cartwright [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, 3514d54b0adSJosh Cartwright [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, 3524d54b0adSJosh Cartwright [QCOM_RPM_NSS_FABRIC_1_CLK] = { 33, 17, 14, 1 }, 3534d54b0adSJosh Cartwright [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, 3544d54b0adSJosh Cartwright [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 2 }, 3554d54b0adSJosh Cartwright [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 3 }, 3564d54b0adSJosh Cartwright [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, 3574d54b0adSJosh Cartwright [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, 3584d54b0adSJosh Cartwright [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 2 }, 3594d54b0adSJosh Cartwright [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 3 }, 3604d54b0adSJosh Cartwright [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, 3614d54b0adSJosh Cartwright [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 }, 3624d54b0adSJosh Cartwright [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 2 }, 3634d54b0adSJosh Cartwright [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 3 }, 3644d54b0adSJosh Cartwright [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 }, 3654d54b0adSJosh Cartwright [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 2 }, 3664d54b0adSJosh Cartwright [QCOM_RPM_CXO_BUFFERS] = { 209, 33, 31, 1 }, 3674d54b0adSJosh Cartwright [QCOM_RPM_USB_OTG_SWITCH] = { 210, 34, 32, 1 }, 3684d54b0adSJosh Cartwright [QCOM_RPM_HDMI_SWITCH] = { 211, 35, 33, 1 }, 3694d54b0adSJosh Cartwright [QCOM_RPM_DDR_DMM] = { 212, 36, 34, 2 }, 3704d54b0adSJosh Cartwright [QCOM_RPM_VDDMIN_GPIO] = { 215, 40, 39, 1 }, 3714d54b0adSJosh Cartwright [QCOM_RPM_SMB208_S1a] = { 216, 41, 90, 2 }, 3724d54b0adSJosh Cartwright [QCOM_RPM_SMB208_S1b] = { 218, 43, 91, 2 }, 3734d54b0adSJosh Cartwright [QCOM_RPM_SMB208_S2a] = { 220, 45, 92, 2 }, 3744d54b0adSJosh Cartwright [QCOM_RPM_SMB208_S2b] = { 222, 47, 93, 2 }, 3754d54b0adSJosh Cartwright }; 3764d54b0adSJosh Cartwright 3774d54b0adSJosh Cartwright static const struct qcom_rpm_data ipq806x_template = { 3784d54b0adSJosh Cartwright .version = 3, 3794d54b0adSJosh Cartwright .resource_table = ipq806x_rpm_resource_table, 3804d54b0adSJosh Cartwright .n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table), 3819835f1b7SLinus Walleij .req_ctx_off = 3, 3829835f1b7SLinus Walleij .req_sel_off = 11, 3839835f1b7SLinus Walleij .ack_ctx_off = 15, 3849835f1b7SLinus Walleij .ack_sel_off = 23, 3859835f1b7SLinus Walleij .sel_size = 4, 3864d54b0adSJosh Cartwright }; 3874d54b0adSJosh Cartwright 38858e21438SBjorn Andersson static const struct of_device_id qcom_rpm_of_match[] = { 38958e21438SBjorn Andersson { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template }, 39058e21438SBjorn Andersson { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template }, 39158e21438SBjorn Andersson { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template }, 3924d54b0adSJosh Cartwright { .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template }, 39358e21438SBjorn Andersson { } 39458e21438SBjorn Andersson }; 39558e21438SBjorn Andersson MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); 39658e21438SBjorn Andersson 39758e21438SBjorn Andersson int qcom_rpm_write(struct qcom_rpm *rpm, 39858e21438SBjorn Andersson int state, 39958e21438SBjorn Andersson int resource, 40058e21438SBjorn Andersson u32 *buf, size_t count) 40158e21438SBjorn Andersson { 40258e21438SBjorn Andersson const struct qcom_rpm_resource *res; 40358e21438SBjorn Andersson const struct qcom_rpm_data *data = rpm->data; 4049835f1b7SLinus Walleij u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 }; 40558e21438SBjorn Andersson int left; 40658e21438SBjorn Andersson int ret = 0; 40758e21438SBjorn Andersson int i; 40858e21438SBjorn Andersson 40958e21438SBjorn Andersson if (WARN_ON(resource < 0 || resource >= data->n_resources)) 41058e21438SBjorn Andersson return -EINVAL; 41158e21438SBjorn Andersson 41258e21438SBjorn Andersson res = &data->resource_table[resource]; 41358e21438SBjorn Andersson if (WARN_ON(res->size != count)) 41458e21438SBjorn Andersson return -EINVAL; 41558e21438SBjorn Andersson 41658e21438SBjorn Andersson mutex_lock(&rpm->lock); 41758e21438SBjorn Andersson 41858e21438SBjorn Andersson for (i = 0; i < res->size; i++) 41958e21438SBjorn Andersson writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i)); 42058e21438SBjorn Andersson 42158e21438SBjorn Andersson bitmap_set((unsigned long *)sel_mask, res->select_id, 1); 4229835f1b7SLinus Walleij for (i = 0; i < rpm->data->sel_size; i++) { 42358e21438SBjorn Andersson writel_relaxed(sel_mask[i], 4249835f1b7SLinus Walleij RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i)); 42558e21438SBjorn Andersson } 42658e21438SBjorn Andersson 4279835f1b7SLinus Walleij writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off)); 42858e21438SBjorn Andersson 42958e21438SBjorn Andersson reinit_completion(&rpm->ack); 43058e21438SBjorn Andersson regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); 43158e21438SBjorn Andersson 43258e21438SBjorn Andersson left = wait_for_completion_timeout(&rpm->ack, RPM_REQUEST_TIMEOUT); 43358e21438SBjorn Andersson if (!left) 43458e21438SBjorn Andersson ret = -ETIMEDOUT; 43558e21438SBjorn Andersson else if (rpm->ack_status & RPM_REJECTED) 43658e21438SBjorn Andersson ret = -EIO; 43758e21438SBjorn Andersson 43858e21438SBjorn Andersson mutex_unlock(&rpm->lock); 43958e21438SBjorn Andersson 44058e21438SBjorn Andersson return ret; 44158e21438SBjorn Andersson } 44258e21438SBjorn Andersson EXPORT_SYMBOL(qcom_rpm_write); 44358e21438SBjorn Andersson 44458e21438SBjorn Andersson static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev) 44558e21438SBjorn Andersson { 44658e21438SBjorn Andersson struct qcom_rpm *rpm = dev; 44758e21438SBjorn Andersson u32 ack; 44858e21438SBjorn Andersson int i; 44958e21438SBjorn Andersson 4509835f1b7SLinus Walleij ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); 4519835f1b7SLinus Walleij for (i = 0; i < rpm->data->sel_size; i++) 4529835f1b7SLinus Walleij writel_relaxed(0, 4539835f1b7SLinus Walleij RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i)); 4549835f1b7SLinus Walleij writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); 45558e21438SBjorn Andersson 45658e21438SBjorn Andersson if (ack & RPM_NOTIFICATION) { 45758e21438SBjorn Andersson dev_warn(rpm->dev, "ignoring notification!\n"); 45858e21438SBjorn Andersson } else { 45958e21438SBjorn Andersson rpm->ack_status = ack; 46058e21438SBjorn Andersson complete(&rpm->ack); 46158e21438SBjorn Andersson } 46258e21438SBjorn Andersson 46358e21438SBjorn Andersson return IRQ_HANDLED; 46458e21438SBjorn Andersson } 46558e21438SBjorn Andersson 46658e21438SBjorn Andersson static irqreturn_t qcom_rpm_err_interrupt(int irq, void *dev) 46758e21438SBjorn Andersson { 46858e21438SBjorn Andersson struct qcom_rpm *rpm = dev; 46958e21438SBjorn Andersson 47058e21438SBjorn Andersson regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); 47158e21438SBjorn Andersson dev_err(rpm->dev, "RPM triggered fatal error\n"); 47258e21438SBjorn Andersson 47358e21438SBjorn Andersson return IRQ_HANDLED; 47458e21438SBjorn Andersson } 47558e21438SBjorn Andersson 47658e21438SBjorn Andersson static irqreturn_t qcom_rpm_wakeup_interrupt(int irq, void *dev) 47758e21438SBjorn Andersson { 47858e21438SBjorn Andersson return IRQ_HANDLED; 47958e21438SBjorn Andersson } 48058e21438SBjorn Andersson 48158e21438SBjorn Andersson static int qcom_rpm_probe(struct platform_device *pdev) 48258e21438SBjorn Andersson { 48358e21438SBjorn Andersson const struct of_device_id *match; 48458e21438SBjorn Andersson struct device_node *syscon_np; 48558e21438SBjorn Andersson struct resource *res; 48658e21438SBjorn Andersson struct qcom_rpm *rpm; 48758e21438SBjorn Andersson u32 fw_version[3]; 48858e21438SBjorn Andersson int irq_wakeup; 48958e21438SBjorn Andersson int irq_ack; 49058e21438SBjorn Andersson int irq_err; 49158e21438SBjorn Andersson int ret; 49258e21438SBjorn Andersson 49358e21438SBjorn Andersson rpm = devm_kzalloc(&pdev->dev, sizeof(*rpm), GFP_KERNEL); 49458e21438SBjorn Andersson if (!rpm) 49558e21438SBjorn Andersson return -ENOMEM; 49658e21438SBjorn Andersson 49758e21438SBjorn Andersson rpm->dev = &pdev->dev; 49858e21438SBjorn Andersson mutex_init(&rpm->lock); 49958e21438SBjorn Andersson init_completion(&rpm->ack); 50058e21438SBjorn Andersson 50158e21438SBjorn Andersson irq_ack = platform_get_irq_byname(pdev, "ack"); 50258e21438SBjorn Andersson if (irq_ack < 0) { 50358e21438SBjorn Andersson dev_err(&pdev->dev, "required ack interrupt missing\n"); 50458e21438SBjorn Andersson return irq_ack; 50558e21438SBjorn Andersson } 50658e21438SBjorn Andersson 50758e21438SBjorn Andersson irq_err = platform_get_irq_byname(pdev, "err"); 50858e21438SBjorn Andersson if (irq_err < 0) { 50958e21438SBjorn Andersson dev_err(&pdev->dev, "required err interrupt missing\n"); 51058e21438SBjorn Andersson return irq_err; 51158e21438SBjorn Andersson } 51258e21438SBjorn Andersson 51358e21438SBjorn Andersson irq_wakeup = platform_get_irq_byname(pdev, "wakeup"); 51458e21438SBjorn Andersson if (irq_wakeup < 0) { 51558e21438SBjorn Andersson dev_err(&pdev->dev, "required wakeup interrupt missing\n"); 51658e21438SBjorn Andersson return irq_wakeup; 51758e21438SBjorn Andersson } 51858e21438SBjorn Andersson 51958e21438SBjorn Andersson match = of_match_device(qcom_rpm_of_match, &pdev->dev); 520cf1199f7SLABBE Corentin if (!match) 521cf1199f7SLABBE Corentin return -ENODEV; 52258e21438SBjorn Andersson rpm->data = match->data; 52358e21438SBjorn Andersson 52458e21438SBjorn Andersson res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 52558e21438SBjorn Andersson rpm->status_regs = devm_ioremap_resource(&pdev->dev, res); 52658e21438SBjorn Andersson if (IS_ERR(rpm->status_regs)) 52758e21438SBjorn Andersson return PTR_ERR(rpm->status_regs); 52858e21438SBjorn Andersson rpm->ctrl_regs = rpm->status_regs + 0x400; 52958e21438SBjorn Andersson rpm->req_regs = rpm->status_regs + 0x600; 53058e21438SBjorn Andersson 53158e21438SBjorn Andersson syscon_np = of_parse_phandle(pdev->dev.of_node, "qcom,ipc", 0); 53258e21438SBjorn Andersson if (!syscon_np) { 53358e21438SBjorn Andersson dev_err(&pdev->dev, "no qcom,ipc node\n"); 53458e21438SBjorn Andersson return -ENODEV; 53558e21438SBjorn Andersson } 53658e21438SBjorn Andersson 53758e21438SBjorn Andersson rpm->ipc_regmap = syscon_node_to_regmap(syscon_np); 53858e21438SBjorn Andersson if (IS_ERR(rpm->ipc_regmap)) 53958e21438SBjorn Andersson return PTR_ERR(rpm->ipc_regmap); 54058e21438SBjorn Andersson 54158e21438SBjorn Andersson ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 1, 54258e21438SBjorn Andersson &rpm->ipc_offset); 54358e21438SBjorn Andersson if (ret < 0) { 54458e21438SBjorn Andersson dev_err(&pdev->dev, "no offset in qcom,ipc\n"); 54558e21438SBjorn Andersson return -EINVAL; 54658e21438SBjorn Andersson } 54758e21438SBjorn Andersson 54858e21438SBjorn Andersson ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 2, 54958e21438SBjorn Andersson &rpm->ipc_bit); 55058e21438SBjorn Andersson if (ret < 0) { 55158e21438SBjorn Andersson dev_err(&pdev->dev, "no bit in qcom,ipc\n"); 55258e21438SBjorn Andersson return -EINVAL; 55358e21438SBjorn Andersson } 55458e21438SBjorn Andersson 55558e21438SBjorn Andersson dev_set_drvdata(&pdev->dev, rpm); 55658e21438SBjorn Andersson 55758e21438SBjorn Andersson fw_version[0] = readl(RPM_STATUS_REG(rpm, 0)); 55858e21438SBjorn Andersson fw_version[1] = readl(RPM_STATUS_REG(rpm, 1)); 55958e21438SBjorn Andersson fw_version[2] = readl(RPM_STATUS_REG(rpm, 2)); 56058e21438SBjorn Andersson if (fw_version[0] != rpm->data->version) { 56158e21438SBjorn Andersson dev_err(&pdev->dev, 56258e21438SBjorn Andersson "RPM version %u.%u.%u incompatible with driver version %u", 56358e21438SBjorn Andersson fw_version[0], 56458e21438SBjorn Andersson fw_version[1], 56558e21438SBjorn Andersson fw_version[2], 56658e21438SBjorn Andersson rpm->data->version); 56758e21438SBjorn Andersson return -EFAULT; 56858e21438SBjorn Andersson } 56958e21438SBjorn Andersson 57058e21438SBjorn Andersson dev_info(&pdev->dev, "RPM firmware %u.%u.%u\n", fw_version[0], 57158e21438SBjorn Andersson fw_version[1], 57258e21438SBjorn Andersson fw_version[2]); 57358e21438SBjorn Andersson 57458e21438SBjorn Andersson ret = devm_request_irq(&pdev->dev, 57558e21438SBjorn Andersson irq_ack, 57658e21438SBjorn Andersson qcom_rpm_ack_interrupt, 577ced7e093SSudeep Holla IRQF_TRIGGER_RISING, 57858e21438SBjorn Andersson "qcom_rpm_ack", 57958e21438SBjorn Andersson rpm); 58058e21438SBjorn Andersson if (ret) { 58158e21438SBjorn Andersson dev_err(&pdev->dev, "failed to request ack interrupt\n"); 58258e21438SBjorn Andersson return ret; 58358e21438SBjorn Andersson } 58458e21438SBjorn Andersson 58558e21438SBjorn Andersson ret = irq_set_irq_wake(irq_ack, 1); 58658e21438SBjorn Andersson if (ret) 58758e21438SBjorn Andersson dev_warn(&pdev->dev, "failed to mark ack irq as wakeup\n"); 58858e21438SBjorn Andersson 58958e21438SBjorn Andersson ret = devm_request_irq(&pdev->dev, 59058e21438SBjorn Andersson irq_err, 59158e21438SBjorn Andersson qcom_rpm_err_interrupt, 59258e21438SBjorn Andersson IRQF_TRIGGER_RISING, 59358e21438SBjorn Andersson "qcom_rpm_err", 59458e21438SBjorn Andersson rpm); 59558e21438SBjorn Andersson if (ret) { 59658e21438SBjorn Andersson dev_err(&pdev->dev, "failed to request err interrupt\n"); 59758e21438SBjorn Andersson return ret; 59858e21438SBjorn Andersson } 59958e21438SBjorn Andersson 60058e21438SBjorn Andersson ret = devm_request_irq(&pdev->dev, 60158e21438SBjorn Andersson irq_wakeup, 60258e21438SBjorn Andersson qcom_rpm_wakeup_interrupt, 60358e21438SBjorn Andersson IRQF_TRIGGER_RISING, 60458e21438SBjorn Andersson "qcom_rpm_wakeup", 60558e21438SBjorn Andersson rpm); 60658e21438SBjorn Andersson if (ret) { 60758e21438SBjorn Andersson dev_err(&pdev->dev, "failed to request wakeup interrupt\n"); 60858e21438SBjorn Andersson return ret; 60958e21438SBjorn Andersson } 61058e21438SBjorn Andersson 61158e21438SBjorn Andersson ret = irq_set_irq_wake(irq_wakeup, 1); 61258e21438SBjorn Andersson if (ret) 61358e21438SBjorn Andersson dev_warn(&pdev->dev, "failed to mark wakeup irq as wakeup\n"); 61458e21438SBjorn Andersson 61558e21438SBjorn Andersson return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); 61658e21438SBjorn Andersson } 61758e21438SBjorn Andersson 61858e21438SBjorn Andersson static int qcom_rpm_remove(struct platform_device *pdev) 61958e21438SBjorn Andersson { 62058e21438SBjorn Andersson of_platform_depopulate(&pdev->dev); 62158e21438SBjorn Andersson return 0; 62258e21438SBjorn Andersson } 62358e21438SBjorn Andersson 62458e21438SBjorn Andersson static struct platform_driver qcom_rpm_driver = { 62558e21438SBjorn Andersson .probe = qcom_rpm_probe, 62658e21438SBjorn Andersson .remove = qcom_rpm_remove, 62758e21438SBjorn Andersson .driver = { 62858e21438SBjorn Andersson .name = "qcom_rpm", 62958e21438SBjorn Andersson .of_match_table = qcom_rpm_of_match, 63058e21438SBjorn Andersson }, 63158e21438SBjorn Andersson }; 63258e21438SBjorn Andersson 63358e21438SBjorn Andersson static int __init qcom_rpm_init(void) 63458e21438SBjorn Andersson { 63558e21438SBjorn Andersson return platform_driver_register(&qcom_rpm_driver); 63658e21438SBjorn Andersson } 63758e21438SBjorn Andersson arch_initcall(qcom_rpm_init); 63858e21438SBjorn Andersson 63958e21438SBjorn Andersson static void __exit qcom_rpm_exit(void) 64058e21438SBjorn Andersson { 64158e21438SBjorn Andersson platform_driver_unregister(&qcom_rpm_driver); 64258e21438SBjorn Andersson } 64358e21438SBjorn Andersson module_exit(qcom_rpm_exit) 64458e21438SBjorn Andersson 64558e21438SBjorn Andersson MODULE_DESCRIPTION("Qualcomm Resource Power Manager driver"); 64658e21438SBjorn Andersson MODULE_LICENSE("GPL v2"); 64758e21438SBjorn Andersson MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@sonymobile.com>"); 648