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Diffstat (limited to 'target/linux/ipq806x/patches-4.4/015-4-thermal-qcom-tsens-8960-Add-support-for-8960-family-of-SoCs.patch')
-rw-r--r--target/linux/ipq806x/patches-4.4/015-4-thermal-qcom-tsens-8960-Add-support-for-8960-family-of-SoCs.patch364
1 files changed, 0 insertions, 364 deletions
diff --git a/target/linux/ipq806x/patches-4.4/015-4-thermal-qcom-tsens-8960-Add-support-for-8960-family-of-SoCs.patch b/target/linux/ipq806x/patches-4.4/015-4-thermal-qcom-tsens-8960-Add-support-for-8960-family-of-SoCs.patch
deleted file mode 100644
index 05490cd97d..0000000000
--- a/target/linux/ipq806x/patches-4.4/015-4-thermal-qcom-tsens-8960-Add-support-for-8960-family-of-SoCs.patch
+++ /dev/null
@@ -1,364 +0,0 @@
-From 20d4fd84bf524ad91e2cc3e4ab4020c27cfc0081 Mon Sep 17 00:00:00 2001
-From: Rajendra Nayak <rnayak@codeaurora.org>
-Date: Thu, 5 May 2016 14:21:43 +0530
-Subject: thermal: qcom: tsens-8960: Add support for 8960 family of SoCs
-
-8960 family of SoCs have the TSENS device as part of GCC, hence
-the driver probes the virtual child device created by GCC and
-uses the parent to extract all DT properties and reuses the GCC
-regmap.
-
-Also GCC/TSENS are part of a domain thats not always ON.
-Hence add .suspend and .resume hooks to save and restore some of
-the inited register context.
-
-Also 8960 family have some of the TSENS init sequence thats
-required to be done by the HLOS driver (some later versions of TSENS
-do not export these registers to non-secure world, and hence need
-these initializations to be done by secure bootloaders)
-
-8660 from the same family has just one sensor and hence some register
-offset/layout differences which need special handling in the driver.
-
-Based on the original code from Siddartha Mohanadoss, Stephen Boyd and
-Narendran Rajan.
-
-Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
-Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
-Signed-off-by: Zhang Rui <rui.zhang@intel.com>
----
- drivers/thermal/qcom/Makefile | 2 +-
- drivers/thermal/qcom/tsens-8960.c | 292 ++++++++++++++++++++++++++++++++++++++
- drivers/thermal/qcom/tsens.c | 8 +-
- drivers/thermal/qcom/tsens.h | 2 +-
- 4 files changed, 298 insertions(+), 6 deletions(-)
- create mode 100644 drivers/thermal/qcom/tsens-8960.c
-
---- a/drivers/thermal/qcom/Makefile
-+++ b/drivers/thermal/qcom/Makefile
-@@ -1,2 +1,2 @@
- obj-$(CONFIG_QCOM_TSENS) += qcom_tsens.o
--qcom_tsens-y += tsens.o tsens-common.o tsens-8916.o tsens-8974.o
-+qcom_tsens-y += tsens.o tsens-common.o tsens-8916.o tsens-8974.o tsens-8960.o
---- /dev/null
-+++ b/drivers/thermal/qcom/tsens-8960.c
-@@ -0,0 +1,292 @@
-+/*
-+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
-+ *
-+ * 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/platform_device.h>
-+#include <linux/delay.h>
-+#include <linux/bitops.h>
-+#include <linux/regmap.h>
-+#include <linux/thermal.h>
-+#include "tsens.h"
-+
-+#define CAL_MDEGC 30000
-+
-+#define CONFIG_ADDR 0x3640
-+#define CONFIG_ADDR_8660 0x3620
-+/* CONFIG_ADDR bitmasks */
-+#define CONFIG 0x9b
-+#define CONFIG_MASK 0xf
-+#define CONFIG_8660 1
-+#define CONFIG_SHIFT_8660 28
-+#define CONFIG_MASK_8660 (3 << CONFIG_SHIFT_8660)
-+
-+#define STATUS_CNTL_ADDR_8064 0x3660
-+#define CNTL_ADDR 0x3620
-+/* CNTL_ADDR bitmasks */
-+#define EN BIT(0)
-+#define SW_RST BIT(1)
-+#define SENSOR0_EN BIT(3)
-+#define SLP_CLK_ENA BIT(26)
-+#define SLP_CLK_ENA_8660 BIT(24)
-+#define MEASURE_PERIOD 1
-+#define SENSOR0_SHIFT 3
-+
-+/* INT_STATUS_ADDR bitmasks */
-+#define MIN_STATUS_MASK BIT(0)
-+#define LOWER_STATUS_CLR BIT(1)
-+#define UPPER_STATUS_CLR BIT(2)
-+#define MAX_STATUS_MASK BIT(3)
-+
-+#define THRESHOLD_ADDR 0x3624
-+/* THRESHOLD_ADDR bitmasks */
-+#define THRESHOLD_MAX_LIMIT_SHIFT 24
-+#define THRESHOLD_MIN_LIMIT_SHIFT 16
-+#define THRESHOLD_UPPER_LIMIT_SHIFT 8
-+#define THRESHOLD_LOWER_LIMIT_SHIFT 0
-+
-+/* Initial temperature threshold values */
-+#define LOWER_LIMIT_TH 0x50
-+#define UPPER_LIMIT_TH 0xdf
-+#define MIN_LIMIT_TH 0x0
-+#define MAX_LIMIT_TH 0xff
-+
-+#define S0_STATUS_ADDR 0x3628
-+#define INT_STATUS_ADDR 0x363c
-+#define TRDY_MASK BIT(7)
-+#define TIMEOUT_US 100
-+
-+static int suspend_8960(struct tsens_device *tmdev)
-+{
-+ int ret;
-+ unsigned int mask;
-+ struct regmap *map = tmdev->map;
-+
-+ ret = regmap_read(map, THRESHOLD_ADDR, &tmdev->ctx.threshold);
-+ if (ret)
-+ return ret;
-+
-+ ret = regmap_read(map, CNTL_ADDR, &tmdev->ctx.control);
-+ if (ret)
-+ return ret;
-+
-+ if (tmdev->num_sensors > 1)
-+ mask = SLP_CLK_ENA | EN;
-+ else
-+ mask = SLP_CLK_ENA_8660 | EN;
-+
-+ ret = regmap_update_bits(map, CNTL_ADDR, mask, 0);
-+ if (ret)
-+ return ret;
-+
-+ return 0;
-+}
-+
-+static int resume_8960(struct tsens_device *tmdev)
-+{
-+ int ret;
-+ struct regmap *map = tmdev->map;
-+
-+ ret = regmap_update_bits(map, CNTL_ADDR, SW_RST, SW_RST);
-+ if (ret)
-+ return ret;
-+
-+ /*
-+ * Separate CONFIG restore is not needed only for 8660 as
-+ * config is part of CTRL Addr and its restored as such
-+ */
-+ if (tmdev->num_sensors > 1) {
-+ ret = regmap_update_bits(map, CONFIG_ADDR, CONFIG_MASK, CONFIG);
-+ if (ret)
-+ return ret;
-+ }
-+
-+ ret = regmap_write(map, THRESHOLD_ADDR, tmdev->ctx.threshold);
-+ if (ret)
-+ return ret;
-+
-+ ret = regmap_write(map, CNTL_ADDR, tmdev->ctx.control);
-+ if (ret)
-+ return ret;
-+
-+ return 0;
-+}
-+
-+static int enable_8960(struct tsens_device *tmdev, int id)
-+{
-+ int ret;
-+ u32 reg, mask;
-+
-+ ret = regmap_read(tmdev->map, CNTL_ADDR, &reg);
-+ if (ret)
-+ return ret;
-+
-+ mask = BIT(id + SENSOR0_SHIFT);
-+ ret = regmap_write(tmdev->map, CNTL_ADDR, reg | SW_RST);
-+ if (ret)
-+ return ret;
-+
-+ if (tmdev->num_sensors > 1)
-+ reg |= mask | SLP_CLK_ENA | EN;
-+ else
-+ reg |= mask | SLP_CLK_ENA_8660 | EN;
-+
-+ ret = regmap_write(tmdev->map, CNTL_ADDR, reg);
-+ if (ret)
-+ return ret;
-+
-+ return 0;
-+}
-+
-+static void disable_8960(struct tsens_device *tmdev)
-+{
-+ int ret;
-+ u32 reg_cntl;
-+ u32 mask;
-+
-+ mask = GENMASK(tmdev->num_sensors - 1, 0);
-+ mask <<= SENSOR0_SHIFT;
-+ mask |= EN;
-+
-+ ret = regmap_read(tmdev->map, CNTL_ADDR, &reg_cntl);
-+ if (ret)
-+ return;
-+
-+ reg_cntl &= ~mask;
-+
-+ if (tmdev->num_sensors > 1)
-+ reg_cntl &= ~SLP_CLK_ENA;
-+ else
-+ reg_cntl &= ~SLP_CLK_ENA_8660;
-+
-+ regmap_write(tmdev->map, CNTL_ADDR, reg_cntl);
-+}
-+
-+static int init_8960(struct tsens_device *tmdev)
-+{
-+ int ret, i;
-+ u32 reg_cntl;
-+
-+ tmdev->map = dev_get_regmap(tmdev->dev, NULL);
-+ if (!tmdev->map)
-+ return -ENODEV;
-+
-+ /*
-+ * The status registers for each sensor are discontiguous
-+ * because some SoCs have 5 sensors while others have more
-+ * but the control registers stay in the same place, i.e
-+ * directly after the first 5 status registers.
-+ */
-+ for (i = 0; i < tmdev->num_sensors; i++) {
-+ if (i >= 5)
-+ tmdev->sensor[i].status = S0_STATUS_ADDR + 40;
-+ tmdev->sensor[i].status += i * 4;
-+ }
-+
-+ reg_cntl = SW_RST;
-+ ret = regmap_update_bits(tmdev->map, CNTL_ADDR, SW_RST, reg_cntl);
-+ if (ret)
-+ return ret;
-+
-+ if (tmdev->num_sensors > 1) {
-+ reg_cntl |= SLP_CLK_ENA | (MEASURE_PERIOD << 18);
-+ reg_cntl &= ~SW_RST;
-+ ret = regmap_update_bits(tmdev->map, CONFIG_ADDR,
-+ CONFIG_MASK, CONFIG);
-+ } else {
-+ reg_cntl |= SLP_CLK_ENA_8660 | (MEASURE_PERIOD << 16);
-+ reg_cntl &= ~CONFIG_MASK_8660;
-+ reg_cntl |= CONFIG_8660 << CONFIG_SHIFT_8660;
-+ }
-+
-+ reg_cntl |= GENMASK(tmdev->num_sensors - 1, 0) << SENSOR0_SHIFT;
-+ ret = regmap_write(tmdev->map, CNTL_ADDR, reg_cntl);
-+ if (ret)
-+ return ret;
-+
-+ reg_cntl |= EN;
-+ ret = regmap_write(tmdev->map, CNTL_ADDR, reg_cntl);
-+ if (ret)
-+ return ret;
-+
-+ return 0;
-+}
-+
-+static int calibrate_8960(struct tsens_device *tmdev)
-+{
-+ int i;
-+ char *data;
-+
-+ ssize_t num_read = tmdev->num_sensors;
-+ struct tsens_sensor *s = tmdev->sensor;
-+
-+ data = qfprom_read(tmdev->dev, "calib");
-+ if (IS_ERR(data))
-+ data = qfprom_read(tmdev->dev, "calib_backup");
-+ if (IS_ERR(data))
-+ return PTR_ERR(data);
-+
-+ for (i = 0; i < num_read; i++, s++)
-+ s->offset = data[i];
-+
-+ return 0;
-+}
-+
-+/* Temperature on y axis and ADC-code on x-axis */
-+static inline int code_to_mdegC(u32 adc_code, const struct tsens_sensor *s)
-+{
-+ int slope, offset;
-+
-+ slope = thermal_zone_get_slope(s->tzd);
-+ offset = CAL_MDEGC - slope * s->offset;
-+
-+ return adc_code * slope + offset;
-+}
-+
-+static int get_temp_8960(struct tsens_device *tmdev, int id, int *temp)
-+{
-+ int ret;
-+ u32 code, trdy;
-+ const struct tsens_sensor *s = &tmdev->sensor[id];
-+ unsigned long timeout;
-+
-+ timeout = jiffies + usecs_to_jiffies(TIMEOUT_US);
-+ do {
-+ ret = regmap_read(tmdev->map, INT_STATUS_ADDR, &trdy);
-+ if (ret)
-+ return ret;
-+ if (!(trdy & TRDY_MASK))
-+ continue;
-+ ret = regmap_read(tmdev->map, s->status, &code);
-+ if (ret)
-+ return ret;
-+ *temp = code_to_mdegC(code, s);
-+ return 0;
-+ } while (time_before(jiffies, timeout));
-+
-+ return -ETIMEDOUT;
-+}
-+
-+const struct tsens_ops ops_8960 = {
-+ .init = init_8960,
-+ .calibrate = calibrate_8960,
-+ .get_temp = get_temp_8960,
-+ .enable = enable_8960,
-+ .disable = disable_8960,
-+ .suspend = suspend_8960,
-+ .resume = resume_8960,
-+};
-+
-+const struct tsens_data data_8960 = {
-+ .num_sensors = 11,
-+ .ops = &ops_8960,
-+};
---- a/drivers/thermal/qcom/tsens.c
-+++ b/drivers/thermal/qcom/tsens.c
-@@ -122,10 +122,10 @@ static int tsens_probe(struct platform_d
- np = dev->of_node;
-
- id = of_match_node(tsens_table, np);
-- if (!id)
-- return -EINVAL;
--
-- data = id->data;
-+ if (id)
-+ data = id->data;
-+ else
-+ data = &data_8960;
-
- if (data->num_sensors <= 0) {
- dev_err(dev, "invalid number of sensors\n");
---- a/drivers/thermal/qcom/tsens.h
-+++ b/drivers/thermal/qcom/tsens.h
-@@ -87,6 +87,6 @@ void compute_intercept_slope(struct tsen
- int init_common(struct tsens_device *);
- int get_temp_common(struct tsens_device *, int, int *);
-
--extern const struct tsens_data data_8916, data_8974;
-+extern const struct tsens_data data_8916, data_8974, data_8960;
-
- #endif /* __QCOM_TSENS_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-27 05:07:33 +0000