| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * Copyright (C) 2013-2018 Hannes Schmelzer <[email protected]> - | |
| * B&R Industrial Automation GmbH - http://www.br-automation.com | |
| */ | |
| #ifndef AM335X_FB_H | |
| #define AM335X_FB_H | |
| #define HSVS_CONTROL (0x01 << 25) /* | |
| * 0 = lcd_lp and lcd_fp are driven on | |
| * opposite edges of pixel clock than | |
| * the lcd_pixel_o | |
| * 1 = lcd_lp and lcd_fp are driven | |
| * according to bit 24 Note that this | |
| * bit MUST be set to '0' for Passive | |
| * Matrix displays the edge timing is | |
| * fixed | |
| */ | |
| #define HSVS_RISEFALL (0x01 << 24) /* | |
| * 0 = lcd_lp and lcd_fp are driven on | |
| * the rising edge of pixel clock (bit | |
| * 25 must be set to 1) | |
| * 1 = lcd_lp and lcd_fp are driven on | |
| * the falling edge of pixel clock (bit | |
| * 25 must be set to 1) | |
| */ | |
| #define DE_INVERT (0x01 << 23) /* | |
| * 0 = DE is low-active | |
| * 1 = DE is high-active | |
| */ | |
| #define PXCLK_INVERT (0x01 << 22) /* | |
| * 0 = pix-clk is high-active | |
| * 1 = pic-clk is low-active | |
| */ | |
| #define HSYNC_INVERT (0x01 << 21) /* | |
| * 0 = HSYNC is active high | |
| * 1 = HSYNC is avtive low | |
| */ | |
| #define VSYNC_INVERT (0x01 << 20) /* | |
| * 0 = VSYNC is active high | |
| * 1 = VSYNC is active low | |
| */ | |
| struct am335x_lcdpanel { | |
| unsigned int hactive; /* Horizontal active area */ | |
| unsigned int vactive; /* Vertical active area */ | |
| unsigned int bpp; /* bits per pixel */ | |
| unsigned int hfp; /* Horizontal front porch */ | |
| unsigned int hbp; /* Horizontal back porch */ | |
| unsigned int hsw; /* Horizontal Sync Pulse Width */ | |
| unsigned int vfp; /* Vertical front porch */ | |
| unsigned int vbp; /* Vertical back porch */ | |
| unsigned int vsw; /* Vertical Sync Pulse Width */ | |
| unsigned int pxl_clk; /* Pixel clock */ | |
| unsigned int pol; /* polarity of sync, clock signals */ | |
| unsigned int pup_delay; /* | |
| * time in ms after power on to | |
| * initialization of lcd-controller | |
| * (VCC ramp up time) | |
| */ | |
| unsigned int pon_delay; /* | |
| * time in ms after initialization of | |
| * lcd-controller (pic stabilization) | |
| */ | |
| void (*panel_power_ctrl)(int); /* fp for power on/off display */ | |
| }; | |
| int am335xfb_init(struct am335x_lcdpanel *panel); | |
| #endif /* AM335X_FB_H */ |