From: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
Remove unused code from dpu_io_util.c. The functions are only
used inside of the msm driver so remove the EXPORT_SYMBOL
tags and move the header dpu_io_util.h from include/linux.
Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
[ryadav@xxxxxxxxxxxxxx: rebased and removed some extra unused code]
Signed-off-by: Rajesh Yadav <ryadav@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/dpu_io_util.c | 380 +-------------------------------------
drivers/gpu/drm/msm/dpu_io_util.h | 61 ++++++
drivers/gpu/drm/msm/msm_drv.h | 1 -
include/linux/dpu_io_util.h | 115 ------------
4 files changed, 66 insertions(+), 491 deletions(-)
create mode 100644 drivers/gpu/drm/msm/dpu_io_util.h
delete mode 100644 include/linux/dpu_io_util.h
diff --git a/drivers/gpu/drm/msm/dpu_io_util.c b/drivers/gpu/drm/msm/dpu_io_util.c
index ecc297c..f7caec3 100644
--- a/drivers/gpu/drm/msm/dpu_io_util.c
+++ b/drivers/gpu/drm/msm/dpu_io_util.c
@@ -13,318 +13,9 @@
#include <linux/clk.h>
#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/regulator/consumer.h>
#include <linux/delay.h>
-#include <linux/dpu_io_util.h>
-#define MAX_I2C_CMDS 16
-void dss_reg_w(struct dss_io_data *io, u32 offset, u32 value, u32 debug)
-{
- u32 in_val;
-
- if (!io || !io->base) {
- DEV_ERR("%pS->%s: invalid input\n",
- __builtin_return_address(0), __func__);
- return;
- }
-
- if (offset > io->len) {
- DEV_ERR("%pS->%s: offset out of range\n",
- __builtin_return_address(0), __func__);
- return;
- }
-
- writel_relaxed(value, io->base + offset);
- if (debug) {
- in_val = readl_relaxed(io->base + offset);
- DEV_DBG("[%08x] => %08x [%08x]\n",
- (u32)(unsigned long)(io->base + offset),
- value, in_val);
- }
-} /* dss_reg_w */
-EXPORT_SYMBOL(dss_reg_w);
-
-u32 dss_reg_r(struct dss_io_data *io, u32 offset, u32 debug)
-{
- u32 value;
-
- if (!io || !io->base) {
- DEV_ERR("%pS->%s: invalid input\n",
- __builtin_return_address(0), __func__);
- return -EINVAL;
- }
-
- if (offset > io->len) {
- DEV_ERR("%pS->%s: offset out of range\n",
- __builtin_return_address(0), __func__);
- return -EINVAL;
- }
-
- value = readl_relaxed(io->base + offset);
- if (debug)
- DEV_DBG("[%08x] <= %08x\n",
- (u32)(unsigned long)(io->base + offset), value);
-
- return value;
-} /* dss_reg_r */
-EXPORT_SYMBOL(dss_reg_r);
-
-void dss_reg_dump(void __iomem *base, u32 length, const char *prefix,
- u32 debug)
-{
- if (debug)
- print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_OFFSET, 32, 4,
- (void *)base, length, false);
-} /* dss_reg_dump */
-EXPORT_SYMBOL(dss_reg_dump);
-
-static struct resource *msm_dss_get_res_byname(struct platform_device *pdev,
- unsigned int type, const char *name)
-{
- struct resource *res = NULL;
-
- res = platform_get_resource_byname(pdev, type, name);
- if (!res)
- DEV_ERR("%s: '%s' resource not found\n", __func__, name);
-
- return res;
-} /* msm_dss_get_res_byname */
-EXPORT_SYMBOL(msm_dss_get_res_byname);
-
-int msm_dss_ioremap_byname(struct platform_device *pdev,
- struct dss_io_data *io_data, const char *name)
-{
- struct resource *res = NULL;
-
- if (!pdev || !io_data) {
- DEV_ERR("%pS->%s: invalid input\n",
- __builtin_return_address(0), __func__);
- return -EINVAL;
- }
-
- res = msm_dss_get_res_byname(pdev, IORESOURCE_MEM, name);
- if (!res) {
- DEV_ERR("%pS->%s: '%s' msm_dss_get_res_byname failed\n",
- __builtin_return_address(0), __func__, name);
- return -ENODEV;
- }
-
- io_data->len = (u32)resource_size(res);
- io_data->base = ioremap(res->start, io_data->len);
- if (!io_data->base) {
- DEV_ERR("%pS->%s: '%s' ioremap failed\n",
- __builtin_return_address(0), __func__, name);
- return -EIO;
- }
-
- return 0;
-} /* msm_dss_ioremap_byname */
-EXPORT_SYMBOL(msm_dss_ioremap_byname);
-
-void msm_dss_iounmap(struct dss_io_data *io_data)
-{
- if (!io_data) {
- DEV_ERR("%pS->%s: invalid input\n",
- __builtin_return_address(0), __func__);
- return;
- }
-
- if (io_data->base) {
- iounmap(io_data->base);
- io_data->base = NULL;
- }
- io_data->len = 0;
-} /* msm_dss_iounmap */
-EXPORT_SYMBOL(msm_dss_iounmap);
-
-int msm_dss_config_vreg(struct device *dev, struct dss_vreg *in_vreg,
- int num_vreg, int config)
-{
- int i = 0, rc = 0;
- struct dss_vreg *curr_vreg = NULL;
- enum dss_vreg_type type;
-
- if (!in_vreg || !num_vreg)
- return rc;
-
- if (config) {
- for (i = 0; i < num_vreg; i++) {
- curr_vreg = &in_vreg[i];
- curr_vreg->vreg = regulator_get(dev,
- curr_vreg->vreg_name);
- rc = PTR_RET(curr_vreg->vreg);
- if (rc) {
- DEV_ERR("%pS->%s: %s get failed. rc=%d\n",
- __builtin_return_address(0), __func__,
- curr_vreg->vreg_name, rc);
- curr_vreg->vreg = NULL;
- goto vreg_get_fail;
- }
- type = (regulator_count_voltages(curr_vreg->vreg) > 0)
- ? DSS_REG_LDO : DSS_REG_VS;
- if (type == DSS_REG_LDO) {
- rc = regulator_set_voltage(
- curr_vreg->vreg,
- curr_vreg->min_voltage,
- curr_vreg->max_voltage);
- if (rc < 0) {
- DEV_ERR("%pS->%s: %s set vltg fail\n",
- __builtin_return_address(0),
- __func__,
- curr_vreg->vreg_name);
- goto vreg_set_voltage_fail;
- }
- }
- }
- } else {
- for (i = num_vreg-1; i >= 0; i--) {
- curr_vreg = &in_vreg[i];
- if (curr_vreg->vreg) {
- type = (regulator_count_voltages(
- curr_vreg->vreg) > 0)
- ? DSS_REG_LDO : DSS_REG_VS;
- if (type == DSS_REG_LDO) {
- regulator_set_voltage(curr_vreg->vreg,
- 0, curr_vreg->max_voltage);
- }
- regulator_put(curr_vreg->vreg);
- curr_vreg->vreg = NULL;
- }
- }
- }
- return 0;
-
-vreg_unconfig:
-if (type == DSS_REG_LDO)
- regulator_set_load(curr_vreg->vreg, 0);
-
-vreg_set_voltage_fail:
- regulator_put(curr_vreg->vreg);
- curr_vreg->vreg = NULL;
-
-vreg_get_fail:
- for (i--; i >= 0; i--) {
- curr_vreg = &in_vreg[i];
- type = (regulator_count_voltages(curr_vreg->vreg) > 0)
- ? DSS_REG_LDO : DSS_REG_VS;
- goto vreg_unconfig;
- }
- return rc;
-} /* msm_dss_config_vreg */
-EXPORT_SYMBOL(msm_dss_config_vreg);
-
-int msm_dss_enable_vreg(struct dss_vreg *in_vreg, int num_vreg, int enable)
-{
- int i = 0, rc = 0;
- bool need_sleep;
-
- if (enable) {
- for (i = 0; i < num_vreg; i++) {
- rc = PTR_RET(in_vreg[i].vreg);
- if (rc) {
- DEV_ERR("%pS->%s: %s regulator error. rc=%d\n",
- __builtin_return_address(0), __func__,
- in_vreg[i].vreg_name, rc);
- goto vreg_set_opt_mode_fail;
- }
- need_sleep = !regulator_is_enabled(in_vreg[i].vreg);
- if (in_vreg[i].pre_on_sleep && need_sleep)
- usleep_range(in_vreg[i].pre_on_sleep * 1000,
- in_vreg[i].pre_on_sleep * 1000);
- rc = regulator_set_load(in_vreg[i].vreg,
- in_vreg[i].enable_load);
- if (rc < 0) {
- DEV_ERR("%pS->%s: %s set opt m fail\n",
- __builtin_return_address(0), __func__,
- in_vreg[i].vreg_name);
- goto vreg_set_opt_mode_fail;
- }
- rc = regulator_enable(in_vreg[i].vreg);
- if (in_vreg[i].post_on_sleep && need_sleep)
- usleep_range(in_vreg[i].post_on_sleep * 1000,
- in_vreg[i].post_on_sleep * 1000);
- if (rc < 0) {
- DEV_ERR("%pS->%s: %s enable failed\n",
- __builtin_return_address(0), __func__,
- in_vreg[i].vreg_name);
- goto disable_vreg;
- }
- }
- } else {
- for (i = num_vreg-1; i >= 0; i--) {
- if (in_vreg[i].pre_off_sleep)
- usleep_range(in_vreg[i].pre_off_sleep * 1000,
- in_vreg[i].pre_off_sleep * 1000);
- regulator_set_load(in_vreg[i].vreg,
- in_vreg[i].disable_load);
- regulator_disable(in_vreg[i].vreg);
- if (in_vreg[i].post_off_sleep)
- usleep_range(in_vreg[i].post_off_sleep * 1000,
- in_vreg[i].post_off_sleep * 1000);
- }
- }
- return rc;
-
-disable_vreg:
- regulator_set_load(in_vreg[i].vreg, in_vreg[i].disable_load);
-
-vreg_set_opt_mode_fail:
- for (i--; i >= 0; i--) {
- if (in_vreg[i].pre_off_sleep)
- usleep_range(in_vreg[i].pre_off_sleep * 1000,
- in_vreg[i].pre_off_sleep * 1000);
- regulator_set_load(in_vreg[i].vreg,
- in_vreg[i].disable_load);
- regulator_disable(in_vreg[i].vreg);
- if (in_vreg[i].post_off_sleep)
- usleep_range(in_vreg[i].post_off_sleep * 1000,
- in_vreg[i].post_off_sleep * 1000);
- }
-
- return rc;
-} /* msm_dss_enable_vreg */
-EXPORT_SYMBOL(msm_dss_enable_vreg);
-
-int msm_dss_enable_gpio(struct dss_gpio *in_gpio, int num_gpio, int enable)
-{
- int i = 0, rc = 0;
-
- if (enable) {
- for (i = 0; i < num_gpio; i++) {
- DEV_DBG("%pS->%s: %s enable\n",
- __builtin_return_address(0), __func__,
- in_gpio[i].gpio_name);
-
- rc = gpio_request(in_gpio[i].gpio,
- in_gpio[i].gpio_name);
- if (rc < 0) {
- DEV_ERR("%pS->%s: %s enable failed\n",
- __builtin_return_address(0), __func__,
- in_gpio[i].gpio_name);
- goto disable_gpio;
- }
- gpio_set_value(in_gpio[i].gpio, in_gpio[i].value);
- }
- } else {
- for (i = num_gpio-1; i >= 0; i--) {
- DEV_DBG("%pS->%s: %s disable\n",
- __builtin_return_address(0), __func__,
- in_gpio[i].gpio_name);
- if (in_gpio[i].gpio)
- gpio_free(in_gpio[i].gpio);
- }
- }
- return rc;
-
-disable_gpio:
- for (i--; i >= 0; i--)
- if (in_gpio[i].gpio)
- gpio_free(in_gpio[i].gpio);
-
- return rc;
-} /* msm_dss_enable_gpio */
-EXPORT_SYMBOL(msm_dss_enable_gpio);
+#include "dpu_io_util.h"
void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk)
{
@@ -335,8 +26,7 @@ void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk)
clk_put(clk_arry[i].clk);
clk_arry[i].clk = NULL;
}
-} /* msm_dss_put_clk */
-EXPORT_SYMBOL(msm_dss_put_clk);
+}
int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk)
{
@@ -363,8 +53,7 @@ int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk)
}
return rc;
-} /* msm_dss_get_clk */
-EXPORT_SYMBOL(msm_dss_get_clk);
+}
int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk)
{
@@ -397,8 +86,7 @@ int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk)
}
return rc;
-} /* msm_dss_clk_set_rate */
-EXPORT_SYMBOL(msm_dss_clk_set_rate);
+}
int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable)
{
@@ -445,8 +133,7 @@ int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable)
}
return rc;
-} /* msm_dss_enable_clk */
-EXPORT_SYMBOL(msm_dss_enable_clk);
+}
int msm_dss_parse_clock(struct platform_device *pdev,
struct dss_module_power *mp)
@@ -497,60 +184,3 @@ int msm_dss_parse_clock(struct platform_device *pdev,
return rc;
}
-
-int dpu_i2c_byte_read(struct i2c_client *client, uint8_t slave_addr,
- uint8_t reg_offset, uint8_t *read_buf)
-{
- struct i2c_msg msgs[2];
- int ret = -1;
-
- pr_debug("%s: reading from slave_addr=[%x] and offset=[%x]\n",
- __func__, slave_addr, reg_offset);
-
- msgs[0].addr = slave_addr >> 1;
- msgs[0].flags = 0;
- msgs[0].buf = ®_offset;
- msgs[0].len = 1;
-
- msgs[1].addr = slave_addr >> 1;
- msgs[1].flags = I2C_M_RD;
- msgs[1].buf = read_buf;
- msgs[1].len = 1;
-
- ret = i2c_transfer(client->adapter, msgs, 2);
- if (ret < 1) {
- pr_err("%s: I2C READ FAILED=[%d]\n", __func__, ret);
- return -EACCES;
- }
- pr_debug("%s: i2c buf is [%x]\n", __func__, *read_buf);
- return 0;
-}
-EXPORT_SYMBOL(dpu_i2c_byte_read);
-
-int dpu_i2c_byte_write(struct i2c_client *client, uint8_t slave_addr,
- uint8_t reg_offset, uint8_t *value)
-{
- struct i2c_msg msgs[1];
- uint8_t data[2];
- int status = -EACCES;
-
- pr_debug("%s: writing from slave_addr=[%x] and offset=[%x]\n",
- __func__, slave_addr, reg_offset);
-
- data[0] = reg_offset;
- data[1] = *value;
-
- msgs[0].addr = slave_addr >> 1;
- msgs[0].flags = 0;
- msgs[0].len = 2;
- msgs[0].buf = data;
-
- status = i2c_transfer(client->adapter, msgs, 1);
- if (status < 1) {
- pr_err("I2C WRITE FAILED=[%d]\n", status);
- return -EACCES;
- }
- pr_debug("%s: I2C write status=%x\n", __func__, status);
- return status;
-}
-EXPORT_SYMBOL(dpu_i2c_byte_write);
diff --git a/drivers/gpu/drm/msm/dpu_io_util.h b/drivers/gpu/drm/msm/dpu_io_util.h
new file mode 100644
index 0000000..773b52e
--- /dev/null
+++ b/drivers/gpu/drm/msm/dpu_io_util.h
@@ -0,0 +1,61 @@
+/* Copyright (c) 2012, 2017-2018, 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.
+ */
+
+#ifndef __DPU_IO_UTIL_H__
+#define __DPU_IO_UTIL_H__
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+#ifdef DEBUG
+#define DEV_DBG(fmt, args...) pr_err(fmt, ##args)
+#else
+#define DEV_DBG(fmt, args...) pr_debug(fmt, ##args)
+#endif
+#define DEV_INFO(fmt, args...) pr_info(fmt, ##args)
+#define DEV_WARN(fmt, args...) pr_warn(fmt, ##args)
+#define DEV_ERR(fmt, args...) pr_err(fmt, ##args)
+
+struct dss_gpio {
+ unsigned int gpio;
+ unsigned int value;
+ char gpio_name[32];
+};
+
+enum dss_clk_type {
+ DSS_CLK_AHB, /* no set rate. rate controlled through rpm */
+ DSS_CLK_PCLK,
+};
+
+struct dss_clk {
+ struct clk *clk; /* clk handle */
+ char clk_name[32];
+ enum dss_clk_type type;
+ unsigned long rate;
+ unsigned long max_rate;
+};
+
+struct dss_module_power {
+ unsigned int num_gpio;
+ struct dss_gpio *gpio_config;
+ unsigned int num_clk;
+ struct dss_clk *clk_config;
+};
+
+int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk);
+void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk);
+int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk);
+int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable);
+int msm_dss_parse_clock(struct platform_device *pdev,
+ struct dss_module_power *mp);
+#endif /* __DPU_IO_UTIL_H__ */
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index d5937ba..811f7d4 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -33,7 +33,6 @@
#include <linux/types.h>
#include <linux/of_graph.h>
#include <linux/of_device.h>
-#include <linux/dpu_io_util.h>
#include <asm/sizes.h>
#include <linux/kthread.h>
diff --git a/include/linux/dpu_io_util.h b/include/linux/dpu_io_util.h
deleted file mode 100644
index 45e606f..0000000
--- a/include/linux/dpu_io_util.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/* Copyright (c) 2012, 2017-2018, 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.
- */
-
-#ifndef __DPU_IO_UTIL_H__
-#define __DPU_IO_UTIL_H__
-
-#include <linux/gpio.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/consumer.h>
-#include <linux/i2c.h>
-#include <linux/types.h>
-
-#ifdef DEBUG
-#define DEV_DBG(fmt, args...) pr_err(fmt, ##args)
-#else
-#define DEV_DBG(fmt, args...) pr_debug(fmt, ##args)
-#endif
-#define DEV_INFO(fmt, args...) pr_info(fmt, ##args)
-#define DEV_WARN(fmt, args...) pr_warn(fmt, ##args)
-#define DEV_ERR(fmt, args...) pr_err(fmt, ##args)
-
-struct dss_io_data {
- u32 len;
- void __iomem *base;
-};
-
-void dss_reg_w(struct dss_io_data *io, u32 offset, u32 value, u32 debug);
-u32 dss_reg_r(struct dss_io_data *io, u32 offset, u32 debug);
-void dss_reg_dump(void __iomem *base, u32 len, const char *prefix, u32 debug);
-
-#define DSS_REG_W_ND(io, offset, val) dss_reg_w(io, offset, val, false)
-#define DSS_REG_W(io, offset, val) dss_reg_w(io, offset, val, true)
-#define DSS_REG_R_ND(io, offset) dss_reg_r(io, offset, false)
-#define DSS_REG_R(io, offset) dss_reg_r(io, offset, true)
-
-enum dss_vreg_type {
- DSS_REG_LDO,
- DSS_REG_VS,
-};
-
-struct dss_vreg {
- struct regulator *vreg; /* vreg handle */
- char vreg_name[32];
- int min_voltage;
- int max_voltage;
- int enable_load;
- int disable_load;
- int pre_on_sleep;
- int post_on_sleep;
- int pre_off_sleep;
- int post_off_sleep;
-};
-
-struct dss_gpio {
- unsigned int gpio;
- unsigned int value;
- char gpio_name[32];
-};
-
-enum dss_clk_type {
- DSS_CLK_AHB, /* no set rate. rate controlled through rpm */
- DSS_CLK_PCLK,
- DSS_CLK_OTHER,
-};
-
-struct dss_clk {
- struct clk *clk; /* clk handle */
- char clk_name[32];
- enum dss_clk_type type;
- unsigned long rate;
- unsigned long max_rate;
-};
-
-struct dss_module_power {
- unsigned int num_vreg;
- struct dss_vreg *vreg_config;
- unsigned int num_gpio;
- struct dss_gpio *gpio_config;
- unsigned int num_clk;
- struct dss_clk *clk_config;
-};
-
-int msm_dss_ioremap_byname(struct platform_device *pdev,
- struct dss_io_data *io_data, const char *name);
-void msm_dss_iounmap(struct dss_io_data *io_data);
-
-int msm_dss_enable_gpio(struct dss_gpio *in_gpio, int num_gpio, int enable);
-int msm_dss_gpio_enable(struct dss_gpio *in_gpio, int num_gpio, int enable);
-
-int msm_dss_config_vreg(struct device *dev, struct dss_vreg *in_vreg,
- int num_vreg, int config);
-int msm_dss_enable_vreg(struct dss_vreg *in_vreg, int num_vreg, int enable);
-
-int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk);
-void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk);
-int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk);
-int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable);
-int msm_dss_parse_clock(struct platform_device *pdev,
- struct dss_module_power *mp);
-
-int dpu_i2c_byte_read(struct i2c_client *client, uint8_t slave_addr,
- uint8_t reg_offset, uint8_t *read_buf);
-int dpu_i2c_byte_write(struct i2c_client *client, uint8_t slave_addr,
- uint8_t reg_offset, uint8_t *value);
-
-#endif /* __DPU_IO_UTIL_H__ */
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