ba57fd387c
Add helper in util to retrieve IO address mappings for a given global gpio pin. This will be used by the Trusted UI framework to secure gpio pins. Change-Id: If8ad069d724394f0772c9cf7371484a7cdc5bc78 Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012, 2017-2021, 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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#include <linux/soc/qcom/msm_mmrm.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_MMRM, /* set rate called through mmrm driver */
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DSS_CLK_OTHER,
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};
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struct dss_clk_mmrm_cb {
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void *phandle;
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struct dss_clk *clk;
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};
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struct dss_clk_mmrm {
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unsigned int clk_id;
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unsigned int flags;
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struct mmrm_client *mmrm_client;
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struct dss_clk_mmrm_cb *mmrm_cb_data;
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unsigned long mmrm_requested_clk;
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wait_queue_head_t mmrm_cb_wq;
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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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struct dss_clk_mmrm mmrm;
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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_get_io_mem(struct platform_device *pdev,
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struct list_head *mem_list);
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void msm_dss_clean_io_mem(struct list_head *mem_list);
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int msm_dss_get_pmic_io_mem(struct platform_device *pdev,
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struct list_head *mem_list);
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int msm_dss_get_gpio_io_mem(const int gpio_pin, struct list_head *mem_list);
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int msm_dss_get_io_irq(struct platform_device *pdev,
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struct list_head *irq_list, u32 label);
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void msm_dss_clean_io_irq(struct list_head *irq_list);
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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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int msm_dss_mmrm_register(struct device *dev, struct dss_module_power *mp,
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int (*cb_fnc)(struct mmrm_client_notifier_data *data), void *phandle,
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bool *mmrm_enable);
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void msm_dss_mmrm_deregister(struct device *dev, struct dss_module_power *mp);
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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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