523 lines
15 KiB
C
523 lines
15 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/drivers/video/omap2/dss/dss.h
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*
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* Copyright (C) 2009 Nokia Corporation
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* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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*
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* Some code and ideas taken from drivers/video/omap/ driver
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* by Imre Deak.
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*/
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#ifndef __OMAP2_DSS_H
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#define __OMAP2_DSS_H
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#include <linux/interrupt.h>
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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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#ifdef DSS_SUBSYS_NAME
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#define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
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#else
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#define pr_fmt(fmt) fmt
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#endif
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#define DSSDBG(format, ...) \
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pr_debug(format, ## __VA_ARGS__)
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#ifdef DSS_SUBSYS_NAME
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#define DSSERR(format, ...) \
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printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
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## __VA_ARGS__)
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#else
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#define DSSERR(format, ...) \
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printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
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#endif
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#ifdef DSS_SUBSYS_NAME
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#define DSSINFO(format, ...) \
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printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
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## __VA_ARGS__)
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#else
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#define DSSINFO(format, ...) \
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printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
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#endif
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#ifdef DSS_SUBSYS_NAME
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#define DSSWARN(format, ...) \
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printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
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## __VA_ARGS__)
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#else
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#define DSSWARN(format, ...) \
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printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
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#endif
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/* OMAP TRM gives bitfields as start:end, where start is the higher bit
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number. For example 7:0 */
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#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
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#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
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#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
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#define FLD_MOD(orig, val, start, end) \
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(((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
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enum omap_dss_clk_source {
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OMAP_DSS_CLK_SRC_FCK = 0, /* OMAP2/3: DSS1_ALWON_FCLK
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* OMAP4: DSS_FCLK */
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OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC, /* OMAP3: DSI1_PLL_FCLK
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* OMAP4: PLL1_CLK1 */
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OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI, /* OMAP3: DSI2_PLL_FCLK
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* OMAP4: PLL1_CLK2 */
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OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC, /* OMAP4: PLL2_CLK1 */
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OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI, /* OMAP4: PLL2_CLK2 */
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};
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enum dss_io_pad_mode {
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DSS_IO_PAD_MODE_RESET,
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DSS_IO_PAD_MODE_RFBI,
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DSS_IO_PAD_MODE_BYPASS,
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};
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enum dss_hdmi_venc_clk_source_select {
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DSS_VENC_TV_CLK = 0,
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DSS_HDMI_M_PCLK = 1,
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};
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enum dss_dsi_content_type {
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DSS_DSI_CONTENT_DCS,
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DSS_DSI_CONTENT_GENERIC,
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};
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enum dss_pll_id {
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DSS_PLL_DSI1,
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DSS_PLL_DSI2,
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DSS_PLL_HDMI,
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DSS_PLL_VIDEO1,
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DSS_PLL_VIDEO2,
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};
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struct dss_pll;
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#define DSS_PLL_MAX_HSDIVS 4
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/*
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* Type-A PLLs: clkout[]/mX[] refer to hsdiv outputs m4, m5, m6, m7.
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* Type-B PLLs: clkout[0] refers to m2.
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*/
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struct dss_pll_clock_info {
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/* rates that we get with dividers below */
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unsigned long fint;
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unsigned long clkdco;
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unsigned long clkout[DSS_PLL_MAX_HSDIVS];
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/* dividers */
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u16 n;
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u16 m;
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u32 mf;
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u16 mX[DSS_PLL_MAX_HSDIVS];
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u16 sd;
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};
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struct dss_pll_ops {
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int (*enable)(struct dss_pll *pll);
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void (*disable)(struct dss_pll *pll);
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int (*set_config)(struct dss_pll *pll,
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const struct dss_pll_clock_info *cinfo);
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};
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struct dss_pll_hw {
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unsigned n_max;
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unsigned m_min;
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unsigned m_max;
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unsigned mX_max;
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unsigned long fint_min, fint_max;
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unsigned long clkdco_min, clkdco_low, clkdco_max;
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u8 n_msb, n_lsb;
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u8 m_msb, m_lsb;
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u8 mX_msb[DSS_PLL_MAX_HSDIVS], mX_lsb[DSS_PLL_MAX_HSDIVS];
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bool has_stopmode;
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bool has_freqsel;
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bool has_selfreqdco;
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bool has_refsel;
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};
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struct dss_pll {
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const char *name;
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enum dss_pll_id id;
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struct clk *clkin;
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struct regulator *regulator;
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void __iomem *base;
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const struct dss_pll_hw *hw;
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const struct dss_pll_ops *ops;
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struct dss_pll_clock_info cinfo;
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};
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struct dispc_clock_info {
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/* rates that we get with dividers below */
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unsigned long lck;
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unsigned long pck;
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/* dividers */
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u16 lck_div;
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u16 pck_div;
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};
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struct dss_lcd_mgr_config {
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enum dss_io_pad_mode io_pad_mode;
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bool stallmode;
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bool fifohandcheck;
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struct dispc_clock_info clock_info;
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int video_port_width;
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int lcden_sig_polarity;
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};
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struct seq_file;
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struct platform_device;
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/* core */
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struct platform_device *dss_get_core_pdev(void);
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int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
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void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
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int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
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void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
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/* display */
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int dss_suspend_all_devices(void);
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int dss_resume_all_devices(void);
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void dss_disable_all_devices(void);
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int display_init_sysfs(struct platform_device *pdev);
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void display_uninit_sysfs(struct platform_device *pdev);
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/* manager */
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int dss_init_overlay_managers(void);
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void dss_uninit_overlay_managers(void);
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int dss_init_overlay_managers_sysfs(struct platform_device *pdev);
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void dss_uninit_overlay_managers_sysfs(struct platform_device *pdev);
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int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
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const struct omap_overlay_manager_info *info);
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int dss_mgr_check_timings(struct omap_overlay_manager *mgr,
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const struct omap_video_timings *timings);
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int dss_mgr_check(struct omap_overlay_manager *mgr,
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struct omap_overlay_manager_info *info,
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const struct omap_video_timings *mgr_timings,
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const struct dss_lcd_mgr_config *config,
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struct omap_overlay_info **overlay_infos);
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static inline bool dss_mgr_is_lcd(enum omap_channel id)
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{
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if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
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id == OMAP_DSS_CHANNEL_LCD3)
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return true;
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else
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return false;
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}
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int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
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struct platform_device *pdev);
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void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr);
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/* overlay */
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void dss_init_overlays(struct platform_device *pdev);
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void dss_uninit_overlays(struct platform_device *pdev);
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void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
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int dss_ovl_simple_check(struct omap_overlay *ovl,
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const struct omap_overlay_info *info);
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int dss_ovl_check(struct omap_overlay *ovl, struct omap_overlay_info *info,
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const struct omap_video_timings *mgr_timings);
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bool dss_ovl_use_replication(struct dss_lcd_mgr_config config,
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enum omap_color_mode mode);
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int dss_overlay_kobj_init(struct omap_overlay *ovl,
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struct platform_device *pdev);
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void dss_overlay_kobj_uninit(struct omap_overlay *ovl);
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/* DSS */
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int dss_init_platform_driver(void) __init;
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void dss_uninit_platform_driver(void);
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int dss_runtime_get(void);
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void dss_runtime_put(void);
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unsigned long dss_get_dispc_clk_rate(void);
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int dss_dpi_select_source(int port, enum omap_channel channel);
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void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
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enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
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const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);
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void dss_dump_clocks(struct seq_file *s);
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/* DSS VIDEO PLL */
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struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
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struct regulator *regulator);
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void dss_video_pll_uninit(struct dss_pll *pll);
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/* dss-of */
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struct device_node *dss_of_port_get_parent_device(struct device_node *port);
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u32 dss_of_port_get_port_number(struct device_node *port);
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#if defined(CONFIG_FB_OMAP2_DSS_DEBUGFS)
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void dss_debug_dump_clocks(struct seq_file *s);
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#endif
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void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
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void dss_ctrl_pll_set_control_mux(enum dss_pll_id pll_id,
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enum omap_channel channel);
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void dss_sdi_init(int datapairs);
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int dss_sdi_enable(void);
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void dss_sdi_disable(void);
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void dss_select_dsi_clk_source(int dsi_module,
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enum omap_dss_clk_source clk_src);
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void dss_select_lcd_clk_source(enum omap_channel channel,
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enum omap_dss_clk_source clk_src);
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enum omap_dss_clk_source dss_get_dispc_clk_source(void);
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enum omap_dss_clk_source dss_get_dsi_clk_source(int dsi_module);
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enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
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void dss_set_venc_output(enum omap_dss_venc_type type);
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void dss_set_dac_pwrdn_bgz(bool enable);
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int dss_set_fck_rate(unsigned long rate);
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typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
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bool dss_div_calc(unsigned long pck, unsigned long fck_min,
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dss_div_calc_func func, void *data);
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/* SDI */
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int sdi_init_platform_driver(void) __init;
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void sdi_uninit_platform_driver(void);
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#ifdef CONFIG_FB_OMAP2_DSS_SDI
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int sdi_init_port(struct platform_device *pdev, struct device_node *port);
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void sdi_uninit_port(struct device_node *port);
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#else
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static inline int sdi_init_port(struct platform_device *pdev,
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struct device_node *port)
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{
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return 0;
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}
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static inline void sdi_uninit_port(struct device_node *port)
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{
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}
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#endif
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/* DSI */
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#ifdef CONFIG_FB_OMAP2_DSS_DSI
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struct dentry;
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struct file_operations;
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int dsi_init_platform_driver(void) __init;
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void dsi_uninit_platform_driver(void);
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void dsi_dump_clocks(struct seq_file *s);
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void dsi_irq_handler(void);
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u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
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#else
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static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
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{
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WARN(1, "%s: DSI not compiled in, returning pixel_size as 0\n",
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__func__);
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return 0;
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}
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#endif
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/* DPI */
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int dpi_init_platform_driver(void) __init;
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void dpi_uninit_platform_driver(void);
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#ifdef CONFIG_FB_OMAP2_DSS_DPI
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int dpi_init_port(struct platform_device *pdev, struct device_node *port);
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void dpi_uninit_port(struct device_node *port);
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#else
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static inline int dpi_init_port(struct platform_device *pdev,
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|
|
struct device_node *port)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline void dpi_uninit_port(struct device_node *port)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* DISPC */
|
||
|
|
int dispc_init_platform_driver(void) __init;
|
||
|
|
void dispc_uninit_platform_driver(void);
|
||
|
|
void dispc_dump_clocks(struct seq_file *s);
|
||
|
|
|
||
|
|
void dispc_enable_sidle(void);
|
||
|
|
void dispc_disable_sidle(void);
|
||
|
|
|
||
|
|
void dispc_lcd_enable_signal(bool enable);
|
||
|
|
void dispc_pck_free_enable(bool enable);
|
||
|
|
void dispc_enable_fifomerge(bool enable);
|
||
|
|
void dispc_enable_gamma_table(bool enable);
|
||
|
|
|
||
|
|
typedef bool (*dispc_div_calc_func)(int lckd, int pckd, unsigned long lck,
|
||
|
|
unsigned long pck, void *data);
|
||
|
|
bool dispc_div_calc(unsigned long dispc,
|
||
|
|
unsigned long pck_min, unsigned long pck_max,
|
||
|
|
dispc_div_calc_func func, void *data);
|
||
|
|
|
||
|
|
bool dispc_mgr_timings_ok(enum omap_channel channel,
|
||
|
|
const struct omap_video_timings *timings);
|
||
|
|
int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
|
||
|
|
struct dispc_clock_info *cinfo);
|
||
|
|
|
||
|
|
|
||
|
|
void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
|
||
|
|
void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
|
||
|
|
u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
|
||
|
|
bool manual_update);
|
||
|
|
|
||
|
|
void dispc_mgr_set_clock_div(enum omap_channel channel,
|
||
|
|
const struct dispc_clock_info *cinfo);
|
||
|
|
int dispc_mgr_get_clock_div(enum omap_channel channel,
|
||
|
|
struct dispc_clock_info *cinfo);
|
||
|
|
void dispc_set_tv_pclk(unsigned long pclk);
|
||
|
|
|
||
|
|
u32 dispc_read_irqstatus(void);
|
||
|
|
void dispc_clear_irqstatus(u32 mask);
|
||
|
|
u32 dispc_read_irqenable(void);
|
||
|
|
void dispc_write_irqenable(u32 mask);
|
||
|
|
|
||
|
|
int dispc_request_irq(irq_handler_t handler, void *dev_id);
|
||
|
|
void dispc_free_irq(void *dev_id);
|
||
|
|
|
||
|
|
int dispc_runtime_get(void);
|
||
|
|
void dispc_runtime_put(void);
|
||
|
|
|
||
|
|
void dispc_mgr_enable(enum omap_channel channel, bool enable);
|
||
|
|
bool dispc_mgr_is_enabled(enum omap_channel channel);
|
||
|
|
u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
|
||
|
|
u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
|
||
|
|
u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
|
||
|
|
bool dispc_mgr_go_busy(enum omap_channel channel);
|
||
|
|
void dispc_mgr_go(enum omap_channel channel);
|
||
|
|
void dispc_mgr_set_lcd_config(enum omap_channel channel,
|
||
|
|
const struct dss_lcd_mgr_config *config);
|
||
|
|
void dispc_mgr_set_timings(enum omap_channel channel,
|
||
|
|
const struct omap_video_timings *timings);
|
||
|
|
void dispc_mgr_setup(enum omap_channel channel,
|
||
|
|
const struct omap_overlay_manager_info *info);
|
||
|
|
|
||
|
|
int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
|
||
|
|
const struct omap_overlay_info *oi,
|
||
|
|
const struct omap_video_timings *timings,
|
||
|
|
int *x_predecim, int *y_predecim);
|
||
|
|
|
||
|
|
int dispc_ovl_enable(enum omap_plane plane, bool enable);
|
||
|
|
bool dispc_ovl_enabled(enum omap_plane plane);
|
||
|
|
void dispc_ovl_set_channel_out(enum omap_plane plane,
|
||
|
|
enum omap_channel channel);
|
||
|
|
int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
|
||
|
|
bool replication, const struct omap_video_timings *mgr_timings,
|
||
|
|
bool mem_to_mem);
|
||
|
|
|
||
|
|
/* VENC */
|
||
|
|
int venc_init_platform_driver(void) __init;
|
||
|
|
void venc_uninit_platform_driver(void);
|
||
|
|
|
||
|
|
/* HDMI */
|
||
|
|
int hdmi4_init_platform_driver(void) __init;
|
||
|
|
void hdmi4_uninit_platform_driver(void);
|
||
|
|
|
||
|
|
int hdmi5_init_platform_driver(void) __init;
|
||
|
|
void hdmi5_uninit_platform_driver(void);
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef CONFIG_FB_OMAP2_DSS_COLLECT_IRQ_STATS
|
||
|
|
static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
|
||
|
|
{
|
||
|
|
int b;
|
||
|
|
for (b = 0; b < 32; ++b) {
|
||
|
|
if (irqstatus & (1 << b))
|
||
|
|
irq_arr[b]++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* PLL */
|
||
|
|
typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
|
||
|
|
unsigned long clkdco, void *data);
|
||
|
|
typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
|
||
|
|
void *data);
|
||
|
|
|
||
|
|
int dss_pll_register(struct dss_pll *pll);
|
||
|
|
void dss_pll_unregister(struct dss_pll *pll);
|
||
|
|
struct dss_pll *dss_pll_find(const char *name);
|
||
|
|
int dss_pll_enable(struct dss_pll *pll);
|
||
|
|
void dss_pll_disable(struct dss_pll *pll);
|
||
|
|
int dss_pll_set_config(struct dss_pll *pll,
|
||
|
|
const struct dss_pll_clock_info *cinfo);
|
||
|
|
|
||
|
|
bool dss_pll_hsdiv_calc(const struct dss_pll *pll, unsigned long clkdco,
|
||
|
|
unsigned long out_min, unsigned long out_max,
|
||
|
|
dss_hsdiv_calc_func func, void *data);
|
||
|
|
bool dss_pll_calc(const struct dss_pll *pll, unsigned long clkin,
|
||
|
|
unsigned long pll_min, unsigned long pll_max,
|
||
|
|
dss_pll_calc_func func, void *data);
|
||
|
|
int dss_pll_write_config_type_a(struct dss_pll *pll,
|
||
|
|
const struct dss_pll_clock_info *cinfo);
|
||
|
|
int dss_pll_write_config_type_b(struct dss_pll *pll,
|
||
|
|
const struct dss_pll_clock_info *cinfo);
|
||
|
|
int dss_pll_wait_reset_done(struct dss_pll *pll);
|
||
|
|
|
||
|
|
/* compat */
|
||
|
|
|
||
|
|
struct dss_mgr_ops {
|
||
|
|
int (*connect)(struct omap_overlay_manager *mgr,
|
||
|
|
struct omap_dss_device *dst);
|
||
|
|
void (*disconnect)(struct omap_overlay_manager *mgr,
|
||
|
|
struct omap_dss_device *dst);
|
||
|
|
|
||
|
|
void (*start_update)(struct omap_overlay_manager *mgr);
|
||
|
|
int (*enable)(struct omap_overlay_manager *mgr);
|
||
|
|
void (*disable)(struct omap_overlay_manager *mgr);
|
||
|
|
void (*set_timings)(struct omap_overlay_manager *mgr,
|
||
|
|
const struct omap_video_timings *timings);
|
||
|
|
void (*set_lcd_config)(struct omap_overlay_manager *mgr,
|
||
|
|
const struct dss_lcd_mgr_config *config);
|
||
|
|
int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
|
||
|
|
void (*handler)(void *), void *data);
|
||
|
|
void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
|
||
|
|
void (*handler)(void *), void *data);
|
||
|
|
};
|
||
|
|
|
||
|
|
int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
|
||
|
|
void dss_uninstall_mgr_ops(void);
|
||
|
|
|
||
|
|
int dss_mgr_connect(struct omap_overlay_manager *mgr,
|
||
|
|
struct omap_dss_device *dst);
|
||
|
|
void dss_mgr_disconnect(struct omap_overlay_manager *mgr,
|
||
|
|
struct omap_dss_device *dst);
|
||
|
|
void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
|
||
|
|
const struct omap_video_timings *timings);
|
||
|
|
void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
|
||
|
|
const struct dss_lcd_mgr_config *config);
|
||
|
|
int dss_mgr_enable(struct omap_overlay_manager *mgr);
|
||
|
|
void dss_mgr_disable(struct omap_overlay_manager *mgr);
|
||
|
|
void dss_mgr_start_update(struct omap_overlay_manager *mgr);
|
||
|
|
int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
|
||
|
|
void (*handler)(void *), void *data);
|
||
|
|
void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
|
||
|
|
void (*handler)(void *), void *data);
|
||
|
|
|
||
|
|
#endif
|