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Diffstat (limited to 'include/linux/mdss_io_util.h')
| -rw-r--r-- | include/linux/mdss_io_util.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/include/linux/mdss_io_util.h b/include/linux/mdss_io_util.h new file mode 100644 index 000000000000..6ad21e887877 --- /dev/null +++ b/include/linux/mdss_io_util.h @@ -0,0 +1,112 @@ +/* Copyright (c) 2012, 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 __MDSS_IO_UTIL_H__ +#define __MDSS_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 gpio; + unsigned 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; +}; + +struct dss_module_power { + unsigned num_vreg; + struct dss_vreg *vreg_config; + unsigned num_gpio; + struct dss_gpio *gpio_config; + unsigned 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 mdss_i2c_byte_read(struct i2c_client *client, uint8_t slave_addr, + uint8_t reg_offset, uint8_t *read_buf); +int mdss_i2c_byte_write(struct i2c_client *client, uint8_t slave_addr, + uint8_t reg_offset, uint8_t *value); + +#endif /* __MDSS_IO_UTIL_H__ */ |