On Wed, May 30, 2018 at 10:50 AM Rajesh Yadav <ryadav@xxxxxxxxxxxxxx> wrote:
>
> 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>
Hi Rajesh and Jordan,
I'm backporting this series for testing, and have found that the
mdss-pll driver uses both dpu_io_util and a bunch of functions/struct
members removed in this patchset. Do we anticipate having to add those
back for mdss-pll?
Sean
> ---
> 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__ */
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
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