diff options
Diffstat (limited to 'target/linux/ipq806x/patches-3.18/120-mfd-qcom-rpm-Driver-for-the-Qualcomm-RPM.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-3.18/120-mfd-qcom-rpm-Driver-for-the-Qualcomm-RPM.patch | 654 |
1 files changed, 654 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-3.18/120-mfd-qcom-rpm-Driver-for-the-Qualcomm-RPM.patch b/target/linux/ipq806x/patches-3.18/120-mfd-qcom-rpm-Driver-for-the-Qualcomm-RPM.patch new file mode 100644 index 0000000..d819142 --- /dev/null +++ b/target/linux/ipq806x/patches-3.18/120-mfd-qcom-rpm-Driver-for-the-Qualcomm-RPM.patch @@ -0,0 +1,654 @@ +From 58e214382bdd1eb48c5a3519182bddcb26edabad Mon Sep 17 00:00:00 2001 +From: Bjorn Andersson <bjorn.andersson@sonymobile.com> +Date: Wed, 26 Nov 2014 13:51:00 -0800 +Subject: [PATCH] mfd: qcom-rpm: Driver for the Qualcomm RPM + +Driver for the Resource Power Manager (RPM) found in Qualcomm 8660, 8960 +and 8064 based devices. The driver exposes resources that child drivers +can operate on; to implementing regulator, clock and bus frequency +drivers. + +Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> +Signed-off-by: Lee Jones <lee.jones@linaro.org> +--- + drivers/mfd/Kconfig | 14 ++ + drivers/mfd/Makefile | 1 + + drivers/mfd/qcom_rpm.c | 581 +++++++++++++++++++++++++++++++++++++++++++ + include/linux/mfd/qcom_rpm.h | 13 + + 4 files changed, 609 insertions(+) + create mode 100644 drivers/mfd/qcom_rpm.c + create mode 100644 include/linux/mfd/qcom_rpm.h + +--- a/drivers/mfd/Kconfig ++++ b/drivers/mfd/Kconfig +@@ -567,6 +567,20 @@ config MFD_PM8921_CORE + Say M here if you want to include support for PM8921 chip as a module. + This will build a module called "pm8921-core". + ++config MFD_QCOM_RPM ++ tristate "Qualcomm Resource Power Manager (RPM)" ++ depends on ARCH_QCOM && OF ++ help ++ If you say yes to this option, support will be included for the ++ Resource Power Manager system found in the Qualcomm 8660, 8960 and ++ 8064 based devices. ++ ++ This is required to access many regulators, clocks and bus ++ frequencies controlled by the RPM on these devices. ++ ++ Say M here if you want to include support for the Qualcomm RPM as a ++ module. This will build a module called "qcom_rpm". ++ + config MFD_SPMI_PMIC + tristate "Qualcomm SPMI PMICs" + depends on ARCH_QCOM || COMPILE_TEST +--- a/drivers/mfd/Makefile ++++ b/drivers/mfd/Makefile +@@ -153,6 +153,7 @@ obj-$(CONFIG_MFD_SI476X_CORE) += si476x- + obj-$(CONFIG_MFD_CS5535) += cs5535-mfd.o + obj-$(CONFIG_MFD_OMAP_USB_HOST) += omap-usb-host.o omap-usb-tll.o + obj-$(CONFIG_MFD_PM8921_CORE) += pm8921-core.o ssbi.o ++obj-$(CONFIG_MFD_QCOM_RPM) += qcom_rpm.o + obj-$(CONFIG_MFD_SPMI_PMIC) += qcom-spmi-pmic.o + obj-$(CONFIG_TPS65911_COMPARATOR) += tps65911-comparator.o + obj-$(CONFIG_MFD_TPS65090) += tps65090.o +--- /dev/null ++++ b/drivers/mfd/qcom_rpm.c +@@ -0,0 +1,581 @@ ++/* ++ * Copyright (c) 2014, Sony Mobile Communications AB. ++ * Copyright (c) 2013, The Linux Foundation. All rights reserved. ++ * Author: Bjorn Andersson <bjorn.andersson@sonymobile.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/of_platform.h> ++#include <linux/io.h> ++#include <linux/interrupt.h> ++#include <linux/mfd/qcom_rpm.h> ++#include <linux/mfd/syscon.h> ++#include <linux/regmap.h> ++ ++#include <dt-bindings/mfd/qcom-rpm.h> ++ ++struct qcom_rpm_resource { ++ unsigned target_id; ++ unsigned status_id; ++ unsigned select_id; ++ unsigned size; ++}; ++ ++struct qcom_rpm_data { ++ u32 version; ++ const struct qcom_rpm_resource *resource_table; ++ unsigned n_resources; ++}; ++ ++struct qcom_rpm { ++ struct device *dev; ++ struct regmap *ipc_regmap; ++ unsigned ipc_offset; ++ unsigned ipc_bit; ++ ++ struct completion ack; ++ struct mutex lock; ++ ++ void __iomem *status_regs; ++ void __iomem *ctrl_regs; ++ void __iomem *req_regs; ++ ++ u32 ack_status; ++ ++ const struct qcom_rpm_data *data; ++}; ++ ++#define RPM_STATUS_REG(rpm, i) ((rpm)->status_regs + (i) * 4) ++#define RPM_CTRL_REG(rpm, i) ((rpm)->ctrl_regs + (i) * 4) ++#define RPM_REQ_REG(rpm, i) ((rpm)->req_regs + (i) * 4) ++ ++#define RPM_REQUEST_TIMEOUT (5 * HZ) ++ ++#define RPM_REQUEST_CONTEXT 3 ++#define RPM_REQ_SELECT 11 ++#define RPM_ACK_CONTEXT 15 ++#define RPM_ACK_SELECTOR 23 ++#define RPM_SELECT_SIZE 7 ++ ++#define RPM_NOTIFICATION BIT(30) ++#define RPM_REJECTED BIT(31) ++ ++#define RPM_SIGNAL BIT(2) ++ ++static const struct qcom_rpm_resource apq8064_rpm_resource_table[] = { ++ [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, ++ [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, ++ [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, ++ [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, ++ [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, ++ [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, ++ [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, ++ [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, ++ [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, ++ [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, ++ [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, ++ [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, ++ [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, ++ [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, ++ [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, ++ [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, ++ [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, ++ [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 }, ++ [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 1 }, ++ [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 1 }, ++ [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 }, ++ [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 21 }, ++ [QCOM_RPM_PM8921_SMPS1] = { 116, 31, 30, 2 }, ++ [QCOM_RPM_PM8921_SMPS2] = { 118, 33, 31, 2 }, ++ [QCOM_RPM_PM8921_SMPS3] = { 120, 35, 32, 2 }, ++ [QCOM_RPM_PM8921_SMPS4] = { 122, 37, 33, 2 }, ++ [QCOM_RPM_PM8921_SMPS5] = { 124, 39, 34, 2 }, ++ [QCOM_RPM_PM8921_SMPS6] = { 126, 41, 35, 2 }, ++ [QCOM_RPM_PM8921_SMPS7] = { 128, 43, 36, 2 }, ++ [QCOM_RPM_PM8921_SMPS8] = { 130, 45, 37, 2 }, ++ [QCOM_RPM_PM8921_LDO1] = { 132, 47, 38, 2 }, ++ [QCOM_RPM_PM8921_LDO2] = { 134, 49, 39, 2 }, ++ [QCOM_RPM_PM8921_LDO3] = { 136, 51, 40, 2 }, ++ [QCOM_RPM_PM8921_LDO4] = { 138, 53, 41, 2 }, ++ [QCOM_RPM_PM8921_LDO5] = { 140, 55, 42, 2 }, ++ [QCOM_RPM_PM8921_LDO6] = { 142, 57, 43, 2 }, ++ [QCOM_RPM_PM8921_LDO7] = { 144, 59, 44, 2 }, ++ [QCOM_RPM_PM8921_LDO8] = { 146, 61, 45, 2 }, ++ [QCOM_RPM_PM8921_LDO9] = { 148, 63, 46, 2 }, ++ [QCOM_RPM_PM8921_LDO10] = { 150, 65, 47, 2 }, ++ [QCOM_RPM_PM8921_LDO11] = { 152, 67, 48, 2 }, ++ [QCOM_RPM_PM8921_LDO12] = { 154, 69, 49, 2 }, ++ [QCOM_RPM_PM8921_LDO13] = { 156, 71, 50, 2 }, ++ [QCOM_RPM_PM8921_LDO14] = { 158, 73, 51, 2 }, ++ [QCOM_RPM_PM8921_LDO15] = { 160, 75, 52, 2 }, ++ [QCOM_RPM_PM8921_LDO16] = { 162, 77, 53, 2 }, ++ [QCOM_RPM_PM8921_LDO17] = { 164, 79, 54, 2 }, ++ [QCOM_RPM_PM8921_LDO18] = { 166, 81, 55, 2 }, ++ [QCOM_RPM_PM8921_LDO19] = { 168, 83, 56, 2 }, ++ [QCOM_RPM_PM8921_LDO20] = { 170, 85, 57, 2 }, ++ [QCOM_RPM_PM8921_LDO21] = { 172, 87, 58, 2 }, ++ [QCOM_RPM_PM8921_LDO22] = { 174, 89, 59, 2 }, ++ [QCOM_RPM_PM8921_LDO23] = { 176, 91, 60, 2 }, ++ [QCOM_RPM_PM8921_LDO24] = { 178, 93, 61, 2 }, ++ [QCOM_RPM_PM8921_LDO25] = { 180, 95, 62, 2 }, ++ [QCOM_RPM_PM8921_LDO26] = { 182, 97, 63, 2 }, ++ [QCOM_RPM_PM8921_LDO27] = { 184, 99, 64, 2 }, ++ [QCOM_RPM_PM8921_LDO28] = { 186, 101, 65, 2 }, ++ [QCOM_RPM_PM8921_LDO29] = { 188, 103, 66, 2 }, ++ [QCOM_RPM_PM8921_CLK1] = { 190, 105, 67, 2 }, ++ [QCOM_RPM_PM8921_CLK2] = { 192, 107, 68, 2 }, ++ [QCOM_RPM_PM8921_LVS1] = { 194, 109, 69, 1 }, ++ [QCOM_RPM_PM8921_LVS2] = { 195, 110, 70, 1 }, ++ [QCOM_RPM_PM8921_LVS3] = { 196, 111, 71, 1 }, ++ [QCOM_RPM_PM8921_LVS4] = { 197, 112, 72, 1 }, ++ [QCOM_RPM_PM8921_LVS5] = { 198, 113, 73, 1 }, ++ [QCOM_RPM_PM8921_LVS6] = { 199, 114, 74, 1 }, ++ [QCOM_RPM_PM8921_LVS7] = { 200, 115, 75, 1 }, ++ [QCOM_RPM_PM8821_SMPS1] = { 201, 116, 76, 2 }, ++ [QCOM_RPM_PM8821_SMPS2] = { 203, 118, 77, 2 }, ++ [QCOM_RPM_PM8821_LDO1] = { 205, 120, 78, 2 }, ++ [QCOM_RPM_PM8921_NCP] = { 207, 122, 80, 2 }, ++ [QCOM_RPM_CXO_BUFFERS] = { 209, 124, 81, 1 }, ++ [QCOM_RPM_USB_OTG_SWITCH] = { 210, 125, 82, 1 }, ++ [QCOM_RPM_HDMI_SWITCH] = { 211, 126, 83, 1 }, ++ [QCOM_RPM_DDR_DMM] = { 212, 127, 84, 2 }, ++ [QCOM_RPM_VDDMIN_GPIO] = { 215, 131, 89, 1 }, ++}; ++ ++static const struct qcom_rpm_data apq8064_template = { ++ .version = 3, ++ .resource_table = apq8064_rpm_resource_table, ++ .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table), ++}; ++ ++static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = { ++ [QCOM_RPM_CXO_CLK] = { 32, 12, 5, 1 }, ++ [QCOM_RPM_PXO_CLK] = { 33, 13, 6, 1 }, ++ [QCOM_RPM_PLL_4] = { 34, 14, 7, 1 }, ++ [QCOM_RPM_APPS_FABRIC_CLK] = { 35, 15, 8, 1 }, ++ [QCOM_RPM_SYS_FABRIC_CLK] = { 36, 16, 9, 1 }, ++ [QCOM_RPM_MM_FABRIC_CLK] = { 37, 17, 10, 1 }, ++ [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 38, 18, 11, 1 }, ++ [QCOM_RPM_SFPB_CLK] = { 39, 19, 12, 1 }, ++ [QCOM_RPM_CFPB_CLK] = { 40, 20, 13, 1 }, ++ [QCOM_RPM_MMFPB_CLK] = { 41, 21, 14, 1 }, ++ [QCOM_RPM_SMI_CLK] = { 42, 22, 15, 1 }, ++ [QCOM_RPM_EBI1_CLK] = { 43, 23, 16, 1 }, ++ [QCOM_RPM_APPS_L2_CACHE_CTL] = { 44, 24, 17, 1 }, ++ [QCOM_RPM_APPS_FABRIC_HALT] = { 45, 25, 18, 2 }, ++ [QCOM_RPM_APPS_FABRIC_MODE] = { 47, 26, 19, 3 }, ++ [QCOM_RPM_APPS_FABRIC_ARB] = { 51, 28, 21, 6 }, ++ [QCOM_RPM_SYS_FABRIC_HALT] = { 63, 29, 22, 2 }, ++ [QCOM_RPM_SYS_FABRIC_MODE] = { 65, 30, 23, 3 }, ++ [QCOM_RPM_SYS_FABRIC_ARB] = { 69, 32, 25, 22 }, ++ [QCOM_RPM_MM_FABRIC_HALT] = { 105, 33, 26, 2 }, ++ [QCOM_RPM_MM_FABRIC_MODE] = { 107, 34, 27, 3 }, ++ [QCOM_RPM_MM_FABRIC_ARB] = { 111, 36, 29, 23 }, ++ [QCOM_RPM_PM8901_SMPS0] = { 134, 37, 30, 2 }, ++ [QCOM_RPM_PM8901_SMPS1] = { 136, 39, 31, 2 }, ++ [QCOM_RPM_PM8901_SMPS2] = { 138, 41, 32, 2 }, ++ [QCOM_RPM_PM8901_SMPS3] = { 140, 43, 33, 2 }, ++ [QCOM_RPM_PM8901_SMPS4] = { 142, 45, 34, 2 }, ++ [QCOM_RPM_PM8901_LDO0] = { 144, 47, 35, 2 }, ++ [QCOM_RPM_PM8901_LDO1] = { 146, 49, 36, 2 }, ++ [QCOM_RPM_PM8901_LDO2] = { 148, 51, 37, 2 }, ++ [QCOM_RPM_PM8901_LDO3] = { 150, 53, 38, 2 }, ++ [QCOM_RPM_PM8901_LDO4] = { 152, 55, 39, 2 }, ++ [QCOM_RPM_PM8901_LDO5] = { 154, 57, 40, 2 }, ++ [QCOM_RPM_PM8901_LDO6] = { 156, 59, 41, 2 }, ++ [QCOM_RPM_PM8901_LVS0] = { 158, 61, 42, 1 }, ++ [QCOM_RPM_PM8901_LVS1] = { 159, 62, 43, 1 }, ++ [QCOM_RPM_PM8901_LVS2] = { 160, 63, 44, 1 }, ++ [QCOM_RPM_PM8901_LVS3] = { 161, 64, 45, 1 }, ++ [QCOM_RPM_PM8901_MVS] = { 162, 65, 46, 1 }, ++ [QCOM_RPM_PM8058_SMPS0] = { 163, 66, 47, 2 }, ++ [QCOM_RPM_PM8058_SMPS1] = { 165, 68, 48, 2 }, ++ [QCOM_RPM_PM8058_SMPS2] = { 167, 70, 49, 2 }, ++ [QCOM_RPM_PM8058_SMPS3] = { 169, 72, 50, 2 }, ++ [QCOM_RPM_PM8058_SMPS4] = { 171, 74, 51, 2 }, ++ [QCOM_RPM_PM8058_LDO0] = { 173, 76, 52, 2 }, ++ [QCOM_RPM_PM8058_LDO1] = { 175, 78, 53, 2 }, ++ [QCOM_RPM_PM8058_LDO2] = { 177, 80, 54, 2 }, ++ [QCOM_RPM_PM8058_LDO3] = { 179, 82, 55, 2 }, ++ [QCOM_RPM_PM8058_LDO4] = { 181, 84, 56, 2 }, ++ [QCOM_RPM_PM8058_LDO5] = { 183, 86, 57, 2 }, ++ [QCOM_RPM_PM8058_LDO6] = { 185, 88, 58, 2 }, ++ [QCOM_RPM_PM8058_LDO7] = { 187, 90, 59, 2 }, ++ [QCOM_RPM_PM8058_LDO8] = { 189, 92, 60, 2 }, ++ [QCOM_RPM_PM8058_LDO9] = { 191, 94, 61, 2 }, ++ [QCOM_RPM_PM8058_LDO10] = { 193, 96, 62, 2 }, ++ [QCOM_RPM_PM8058_LDO11] = { 195, 98, 63, 2 }, ++ [QCOM_RPM_PM8058_LDO12] = { 197, 100, 64, 2 }, ++ [QCOM_RPM_PM8058_LDO13] = { 199, 102, 65, 2 }, ++ [QCOM_RPM_PM8058_LDO14] = { 201, 104, 66, 2 }, ++ [QCOM_RPM_PM8058_LDO15] = { 203, 106, 67, 2 }, ++ [QCOM_RPM_PM8058_LDO16] = { 205, 108, 68, 2 }, ++ [QCOM_RPM_PM8058_LDO17] = { 207, 110, 69, 2 }, ++ [QCOM_RPM_PM8058_LDO18] = { 209, 112, 70, 2 }, ++ [QCOM_RPM_PM8058_LDO19] = { 211, 114, 71, 2 }, ++ [QCOM_RPM_PM8058_LDO20] = { 213, 116, 72, 2 }, ++ [QCOM_RPM_PM8058_LDO21] = { 215, 118, 73, 2 }, ++ [QCOM_RPM_PM8058_LDO22] = { 217, 120, 74, 2 }, ++ [QCOM_RPM_PM8058_LDO23] = { 219, 122, 75, 2 }, ++ [QCOM_RPM_PM8058_LDO24] = { 221, 124, 76, 2 }, ++ [QCOM_RPM_PM8058_LDO25] = { 223, 126, 77, 2 }, ++ [QCOM_RPM_PM8058_LVS0] = { 225, 128, 78, 1 }, ++ [QCOM_RPM_PM8058_LVS1] = { 226, 129, 79, 1 }, ++ [QCOM_RPM_PM8058_NCP] = { 227, 130, 80, 2 }, ++ [QCOM_RPM_CXO_BUFFERS] = { 229, 132, 81, 1 }, ++}; ++ ++static const struct qcom_rpm_data msm8660_template = { ++ .version = 2, ++ .resource_table = msm8660_rpm_resource_table, ++ .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table), ++}; ++ ++static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = { ++ [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, ++ [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, ++ [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, ++ [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, ++ [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, ++ [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, ++ [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, ++ [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, ++ [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, ++ [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, ++ [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, ++ [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, ++ [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, ++ [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, ++ [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, ++ [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, ++ [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, ++ [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 29 }, ++ [QCOM_RPM_MM_FABRIC_HALT] = { 88, 27, 26, 1 }, ++ [QCOM_RPM_MM_FABRIC_MODE] = { 90, 28, 27, 1 }, ++ [QCOM_RPM_MM_FABRIC_IOCTL] = { 93, 29, 28, 1 }, ++ [QCOM_RPM_MM_FABRIC_ARB] = { 94, 30, 29, 23 }, ++ [QCOM_RPM_PM8921_SMPS1] = { 117, 31, 30, 2 }, ++ [QCOM_RPM_PM8921_SMPS2] = { 119, 33, 31, 2 }, ++ [QCOM_RPM_PM8921_SMPS3] = { 121, 35, 32, 2 }, ++ [QCOM_RPM_PM8921_SMPS4] = { 123, 37, 33, 2 }, ++ [QCOM_RPM_PM8921_SMPS5] = { 125, 39, 34, 2 }, ++ [QCOM_RPM_PM8921_SMPS6] = { 127, 41, 35, 2 }, ++ [QCOM_RPM_PM8921_SMPS7] = { 129, 43, 36, 2 }, ++ [QCOM_RPM_PM8921_SMPS8] = { 131, 45, 37, 2 }, ++ [QCOM_RPM_PM8921_LDO1] = { 133, 47, 38, 2 }, ++ [QCOM_RPM_PM8921_LDO2] = { 135, 49, 39, 2 }, ++ [QCOM_RPM_PM8921_LDO3] = { 137, 51, 40, 2 }, ++ [QCOM_RPM_PM8921_LDO4] = { 139, 53, 41, 2 }, ++ [QCOM_RPM_PM8921_LDO5] = { 141, 55, 42, 2 }, ++ [QCOM_RPM_PM8921_LDO6] = { 143, 57, 43, 2 }, ++ [QCOM_RPM_PM8921_LDO7] = { 145, 59, 44, 2 }, ++ [QCOM_RPM_PM8921_LDO8] = { 147, 61, 45, 2 }, ++ [QCOM_RPM_PM8921_LDO9] = { 149, 63, 46, 2 }, ++ [QCOM_RPM_PM8921_LDO10] = { 151, 65, 47, 2 }, ++ [QCOM_RPM_PM8921_LDO11] = { 153, 67, 48, 2 }, ++ [QCOM_RPM_PM8921_LDO12] = { 155, 69, 49, 2 }, ++ [QCOM_RPM_PM8921_LDO13] = { 157, 71, 50, 2 }, ++ [QCOM_RPM_PM8921_LDO14] = { 159, 73, 51, 2 }, ++ [QCOM_RPM_PM8921_LDO15] = { 161, 75, 52, 2 }, ++ [QCOM_RPM_PM8921_LDO16] = { 163, 77, 53, 2 }, ++ [QCOM_RPM_PM8921_LDO17] = { 165, 79, 54, 2 }, ++ [QCOM_RPM_PM8921_LDO18] = { 167, 81, 55, 2 }, ++ [QCOM_RPM_PM8921_LDO19] = { 169, 83, 56, 2 }, ++ [QCOM_RPM_PM8921_LDO20] = { 171, 85, 57, 2 }, ++ [QCOM_RPM_PM8921_LDO21] = { 173, 87, 58, 2 }, ++ [QCOM_RPM_PM8921_LDO22] = { 175, 89, 59, 2 }, ++ [QCOM_RPM_PM8921_LDO23] = { 177, 91, 60, 2 }, ++ [QCOM_RPM_PM8921_LDO24] = { 179, 93, 61, 2 }, ++ [QCOM_RPM_PM8921_LDO25] = { 181, 95, 62, 2 }, ++ [QCOM_RPM_PM8921_LDO26] = { 183, 97, 63, 2 }, ++ [QCOM_RPM_PM8921_LDO27] = { 185, 99, 64, 2 }, ++ [QCOM_RPM_PM8921_LDO28] = { 187, 101, 65, 2 }, ++ [QCOM_RPM_PM8921_LDO29] = { 189, 103, 66, 2 }, ++ [QCOM_RPM_PM8921_CLK1] = { 191, 105, 67, 2 }, ++ [QCOM_RPM_PM8921_CLK2] = { 193, 107, 68, 2 }, ++ [QCOM_RPM_PM8921_LVS1] = { 195, 109, 69, 1 }, ++ [QCOM_RPM_PM8921_LVS2] = { 196, 110, 70, 1 }, ++ [QCOM_RPM_PM8921_LVS3] = { 197, 111, 71, 1 }, ++ [QCOM_RPM_PM8921_LVS4] = { 198, 112, 72, 1 }, ++ [QCOM_RPM_PM8921_LVS5] = { 199, 113, 73, 1 }, ++ [QCOM_RPM_PM8921_LVS6] = { 200, 114, 74, 1 }, ++ [QCOM_RPM_PM8921_LVS7] = { 201, 115, 75, 1 }, ++ [QCOM_RPM_PM8921_NCP] = { 202, 116, 80, 2 }, ++ [QCOM_RPM_CXO_BUFFERS] = { 204, 118, 81, 1 }, ++ [QCOM_RPM_USB_OTG_SWITCH] = { 205, 119, 82, 1 }, ++ [QCOM_RPM_HDMI_SWITCH] = { 206, 120, 83, 1 }, ++ [QCOM_RPM_DDR_DMM] = { 207, 121, 84, 2 }, ++}; ++ ++static const struct qcom_rpm_data msm8960_template = { ++ .version = 3, ++ .resource_table = msm8960_rpm_resource_table, ++ .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table), ++}; ++ ++static const struct of_device_id qcom_rpm_of_match[] = { ++ { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template }, ++ { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template }, ++ { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); ++ ++int qcom_rpm_write(struct qcom_rpm *rpm, ++ int state, ++ int resource, ++ u32 *buf, size_t count) ++{ ++ const struct qcom_rpm_resource *res; ++ const struct qcom_rpm_data *data = rpm->data; ++ u32 sel_mask[RPM_SELECT_SIZE] = { 0 }; ++ int left; ++ int ret = 0; ++ int i; ++ ++ if (WARN_ON(resource < 0 || resource >= data->n_resources)) ++ return -EINVAL; ++ ++ res = &data->resource_table[resource]; ++ if (WARN_ON(res->size != count)) ++ return -EINVAL; ++ ++ mutex_lock(&rpm->lock); ++ ++ for (i = 0; i < res->size; i++) ++ writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i)); ++ ++ bitmap_set((unsigned long *)sel_mask, res->select_id, 1); ++ for (i = 0; i < ARRAY_SIZE(sel_mask); i++) { ++ writel_relaxed(sel_mask[i], ++ RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i)); ++ } ++ ++ writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT)); ++ ++ reinit_completion(&rpm->ack); ++ regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); ++ ++ left = wait_for_completion_timeout(&rpm->ack, RPM_REQUEST_TIMEOUT); ++ if (!left) ++ ret = -ETIMEDOUT; ++ else if (rpm->ack_status & RPM_REJECTED) ++ ret = -EIO; ++ ++ mutex_unlock(&rpm->lock); ++ ++ return ret; ++} ++EXPORT_SYMBOL(qcom_rpm_write); ++ ++static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev) ++{ ++ struct qcom_rpm *rpm = dev; ++ u32 ack; ++ int i; ++ ++ ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); ++ for (i = 0; i < RPM_SELECT_SIZE; i++) ++ writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i)); ++ writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); ++ ++ if (ack & RPM_NOTIFICATION) { ++ dev_warn(rpm->dev, "ignoring notification!\n"); ++ } else { ++ rpm->ack_status = ack; ++ complete(&rpm->ack); ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t qcom_rpm_err_interrupt(int irq, void *dev) ++{ ++ struct qcom_rpm *rpm = dev; ++ ++ regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); ++ dev_err(rpm->dev, "RPM triggered fatal error\n"); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t qcom_rpm_wakeup_interrupt(int irq, void *dev) ++{ ++ return IRQ_HANDLED; ++} ++ ++static int qcom_rpm_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *match; ++ struct device_node *syscon_np; ++ struct resource *res; ++ struct qcom_rpm *rpm; ++ u32 fw_version[3]; ++ int irq_wakeup; ++ int irq_ack; ++ int irq_err; ++ int ret; ++ ++ rpm = devm_kzalloc(&pdev->dev, sizeof(*rpm), GFP_KERNEL); ++ if (!rpm) ++ return -ENOMEM; ++ ++ rpm->dev = &pdev->dev; ++ mutex_init(&rpm->lock); ++ init_completion(&rpm->ack); ++ ++ irq_ack = platform_get_irq_byname(pdev, "ack"); ++ if (irq_ack < 0) { ++ dev_err(&pdev->dev, "required ack interrupt missing\n"); ++ return irq_ack; ++ } ++ ++ irq_err = platform_get_irq_byname(pdev, "err"); ++ if (irq_err < 0) { ++ dev_err(&pdev->dev, "required err interrupt missing\n"); ++ return irq_err; ++ } ++ ++ irq_wakeup = platform_get_irq_byname(pdev, "wakeup"); ++ if (irq_wakeup < 0) { ++ dev_err(&pdev->dev, "required wakeup interrupt missing\n"); ++ return irq_wakeup; ++ } ++ ++ match = of_match_device(qcom_rpm_of_match, &pdev->dev); ++ rpm->data = match->data; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ rpm->status_regs = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(rpm->status_regs)) ++ return PTR_ERR(rpm->status_regs); ++ rpm->ctrl_regs = rpm->status_regs + 0x400; ++ rpm->req_regs = rpm->status_regs + 0x600; ++ ++ syscon_np = of_parse_phandle(pdev->dev.of_node, "qcom,ipc", 0); ++ if (!syscon_np) { ++ dev_err(&pdev->dev, "no qcom,ipc node\n"); ++ return -ENODEV; ++ } ++ ++ rpm->ipc_regmap = syscon_node_to_regmap(syscon_np); ++ if (IS_ERR(rpm->ipc_regmap)) ++ return PTR_ERR(rpm->ipc_regmap); ++ ++ ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 1, ++ &rpm->ipc_offset); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "no offset in qcom,ipc\n"); ++ return -EINVAL; ++ } ++ ++ ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 2, ++ &rpm->ipc_bit); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "no bit in qcom,ipc\n"); ++ return -EINVAL; ++ } ++ ++ dev_set_drvdata(&pdev->dev, rpm); ++ ++ fw_version[0] = readl(RPM_STATUS_REG(rpm, 0)); ++ fw_version[1] = readl(RPM_STATUS_REG(rpm, 1)); ++ fw_version[2] = readl(RPM_STATUS_REG(rpm, 2)); ++ if (fw_version[0] != rpm->data->version) { ++ dev_err(&pdev->dev, ++ "RPM version %u.%u.%u incompatible with driver version %u", ++ fw_version[0], ++ fw_version[1], ++ fw_version[2], ++ rpm->data->version); ++ return -EFAULT; ++ } ++ ++ dev_info(&pdev->dev, "RPM firmware %u.%u.%u\n", fw_version[0], ++ fw_version[1], ++ fw_version[2]); ++ ++ ret = devm_request_irq(&pdev->dev, ++ irq_ack, ++ qcom_rpm_ack_interrupt, ++ IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND, ++ "qcom_rpm_ack", ++ rpm); ++ if (ret) { ++ dev_err(&pdev->dev, "failed to request ack interrupt\n"); ++ return ret; ++ } ++ ++ ret = irq_set_irq_wake(irq_ack, 1); ++ if (ret) ++ dev_warn(&pdev->dev, "failed to mark ack irq as wakeup\n"); ++ ++ ret = devm_request_irq(&pdev->dev, ++ irq_err, ++ qcom_rpm_err_interrupt, ++ IRQF_TRIGGER_RISING, ++ "qcom_rpm_err", ++ rpm); ++ if (ret) { ++ dev_err(&pdev->dev, "failed to request err interrupt\n"); ++ return ret; ++ } ++ ++ ret = devm_request_irq(&pdev->dev, ++ irq_wakeup, ++ qcom_rpm_wakeup_interrupt, ++ IRQF_TRIGGER_RISING, ++ "qcom_rpm_wakeup", ++ rpm); ++ if (ret) { ++ dev_err(&pdev->dev, "failed to request wakeup interrupt\n"); ++ return ret; ++ } ++ ++ ret = irq_set_irq_wake(irq_wakeup, 1); ++ if (ret) ++ dev_warn(&pdev->dev, "failed to mark wakeup irq as wakeup\n"); ++ ++ return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); ++} ++ ++static int qcom_rpm_remove(struct platform_device *pdev) ++{ ++ of_platform_depopulate(&pdev->dev); ++ return 0; ++} ++ ++static struct platform_driver qcom_rpm_driver = { ++ .probe = qcom_rpm_probe, ++ .remove = qcom_rpm_remove, ++ .driver = { ++ .name = "qcom_rpm", ++ .of_match_table = qcom_rpm_of_match, ++ }, ++}; ++ ++static int __init qcom_rpm_init(void) ++{ ++ return platform_driver_register(&qcom_rpm_driver); ++} ++arch_initcall(qcom_rpm_init); ++ ++static void __exit qcom_rpm_exit(void) ++{ ++ platform_driver_unregister(&qcom_rpm_driver); ++} ++module_exit(qcom_rpm_exit) ++ ++MODULE_DESCRIPTION("Qualcomm Resource Power Manager driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@sonymobile.com>"); +--- /dev/null ++++ b/include/linux/mfd/qcom_rpm.h +@@ -0,0 +1,13 @@ ++#ifndef __QCOM_RPM_H__ ++#define __QCOM_RPM_H__ ++ ++#include <linux/types.h> ++ ++struct qcom_rpm; ++ ++#define QCOM_RPM_ACTIVE_STATE 0 ++#define QCOM_RPM_SLEEP_STATE 1 ++ ++int qcom_rpm_write(struct qcom_rpm *rpm, int state, int resource, u32 *buf, size_t count); ++ ++#endif |