96e8b6819c
This change sets the regulator voltage to zero for all those regulators which support voltage scaling before disabling the regulator. Failing to do so causes the regulator vote to set to the last min value specified in the previous set voltage call. Additionally modified the config regulator api and renamed to get regulator because of the above change. Change-Id: Ie4c4842db0c08a4d98926ed79503cf84e4d5762a Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012, 2017-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef __SDE_IO_UTIL_H__
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#define __SDE_IO_UTIL_H__
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/consumer.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#ifdef DEBUG
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#define DEV_DBG(fmt, args...) pr_err(fmt, ##args)
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#else
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#define DEV_DBG(fmt, args...) pr_debug(fmt, ##args)
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#endif
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#define DEV_INFO(fmt, args...) pr_info(fmt, ##args)
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#define DEV_WARN(fmt, args...) pr_warn(fmt, ##args)
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#define DEV_ERR(fmt, args...) pr_err(fmt, ##args)
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struct dss_io_data {
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u32 len;
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void __iomem *base;
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};
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void dss_reg_w(struct dss_io_data *io, u32 offset, u32 value, u32 debug);
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u32 dss_reg_r(struct dss_io_data *io, u32 offset, u32 debug);
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void dss_reg_dump(void __iomem *base, u32 len, const char *prefix, u32 debug);
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#define DSS_REG_W_ND(io, offset, val) dss_reg_w(io, offset, val, false)
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#define DSS_REG_W(io, offset, val) dss_reg_w(io, offset, val, true)
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#define DSS_REG_R_ND(io, offset) dss_reg_r(io, offset, false)
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#define DSS_REG_R(io, offset) dss_reg_r(io, offset, true)
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enum dss_vreg_type {
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DSS_REG_LDO,
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DSS_REG_VS,
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};
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struct dss_vreg {
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struct regulator *vreg; /* vreg handle */
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char vreg_name[32];
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int min_voltage;
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int max_voltage;
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int enable_load;
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int disable_load;
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int pre_on_sleep;
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int post_on_sleep;
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int pre_off_sleep;
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int post_off_sleep;
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};
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struct dss_gpio {
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unsigned int gpio;
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unsigned int value;
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char gpio_name[32];
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};
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enum dss_clk_type {
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DSS_CLK_AHB, /* no set rate. rate controlled through rpm */
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DSS_CLK_PCLK,
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DSS_CLK_OTHER,
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};
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struct dss_clk {
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struct clk *clk; /* clk handle */
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char clk_name[32];
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enum dss_clk_type type;
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unsigned long rate;
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unsigned long max_rate;
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};
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struct dss_module_power {
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unsigned int num_vreg;
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struct dss_vreg *vreg_config;
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unsigned int num_gpio;
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struct dss_gpio *gpio_config;
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unsigned int num_clk;
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struct dss_clk *clk_config;
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};
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int msm_dss_ioremap_byname(struct platform_device *pdev,
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struct dss_io_data *io_data, const char *name);
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void msm_dss_iounmap(struct dss_io_data *io_data);
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int msm_dss_enable_gpio(struct dss_gpio *in_gpio, int num_gpio, int enable);
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int msm_dss_gpio_enable(struct dss_gpio *in_gpio, int num_gpio, int enable);
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int msm_dss_get_vreg(struct device *dev, struct dss_vreg *in_vreg,
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int num_vreg, int enable);
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int msm_dss_enable_vreg(struct dss_vreg *in_vreg, int num_vreg, int enable);
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int msm_dss_get_clk(struct device *dev, struct dss_clk *clk_arry, int num_clk);
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void msm_dss_put_clk(struct dss_clk *clk_arry, int num_clk);
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int msm_dss_clk_set_rate(struct dss_clk *clk_arry, int num_clk);
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int msm_dss_single_clk_set_rate(struct dss_clk *clk);
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int msm_dss_enable_clk(struct dss_clk *clk_arry, int num_clk, int enable);
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int sde_i2c_byte_read(struct i2c_client *client, uint8_t slave_addr,
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uint8_t reg_offset, uint8_t *read_buf);
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int sde_i2c_byte_write(struct i2c_client *client, uint8_t slave_addr,
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uint8_t reg_offset, uint8_t *value);
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#endif /* __SDE_IO_UTIL_H__ */
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