1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Support for Compaq iPAQ H3600 handheld computer 4 * 5 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) 6 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> 7 */ 8 9 #include <linux/init.h> 10 #include <linux/kernel.h> 11 #include <linux/gpio.h> 12 13 #include <video/sa1100fb.h> 14 15 #include <asm/mach-types.h> 16 #include <asm/mach/arch.h> 17 #include <linux/platform_data/irda-sa11x0.h> 18 19 #include <mach/h3xxx.h> 20 #include <mach/irqs.h> 21 22 #include "generic.h" 23 24 /* 25 * helper for sa1100fb 26 */ 27 static struct gpio h3600_lcd_gpio[] = { 28 { H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD power" }, 29 { H3600_EGPIO_LCD_PCI, GPIOF_OUT_INIT_LOW, "LCD control" }, 30 { H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW, "LCD 5v" }, 31 { H3600_EGPIO_LVDD_ON, GPIOF_OUT_INIT_LOW, "LCD 9v/-6.5v" }, 32 }; 33 34 static bool h3600_lcd_request(void) 35 { 36 static bool h3600_lcd_ok; 37 int rc; 38 39 if (h3600_lcd_ok) 40 return true; 41 42 rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio)); 43 if (rc) 44 pr_err("%s: can't request GPIOs\n", __func__); 45 else 46 h3600_lcd_ok = true; 47 48 return h3600_lcd_ok; 49 } 50 51 static void h3600_lcd_power(int enable) 52 { 53 if (!h3600_lcd_request()) 54 return; 55 56 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); 57 gpio_direction_output(H3600_EGPIO_LCD_PCI, enable); 58 gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable); 59 gpio_direction_output(H3600_EGPIO_LVDD_ON, enable); 60 } 61 62 static const struct sa1100fb_rgb h3600_rgb_16 = { 63 .red = { .offset = 12, .length = 4, }, 64 .green = { .offset = 7, .length = 4, }, 65 .blue = { .offset = 1, .length = 4, }, 66 .transp = { .offset = 0, .length = 0, }, 67 }; 68 69 static struct sa1100fb_mach_info h3600_lcd_info = { 70 .pixclock = 174757, .bpp = 16, 71 .xres = 320, .yres = 240, 72 73 .hsync_len = 3, .vsync_len = 3, 74 .left_margin = 12, .upper_margin = 10, 75 .right_margin = 17, .lower_margin = 1, 76 77 .cmap_static = 1, 78 79 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, 80 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), 81 82 .rgb[RGB_16] = &h3600_rgb_16, 83 84 .lcd_power = h3600_lcd_power, 85 }; 86 87 88 static void __init h3600_map_io(void) 89 { 90 h3xxx_map_io(); 91 } 92 93 /* 94 * This turns the IRDA power on or off on the Compaq H3600 95 */ 96 static struct gpio h3600_irda_gpio[] = { 97 { H3600_EGPIO_IR_ON, GPIOF_OUT_INIT_LOW, "IrDA power" }, 98 { H3600_EGPIO_IR_FSEL, GPIOF_OUT_INIT_LOW, "IrDA fsel" }, 99 }; 100 101 static int h3600_irda_set_power(struct device *dev, unsigned int state) 102 { 103 gpio_set_value(H3600_EGPIO_IR_ON, state); 104 return 0; 105 } 106 107 static void h3600_irda_set_speed(struct device *dev, unsigned int speed) 108 { 109 gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000)); 110 } 111 112 static int h3600_irda_startup(struct device *dev) 113 { 114 return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); 115 } 116 117 static void h3600_irda_shutdown(struct device *dev) 118 { 119 return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio)); 120 } 121 122 static struct irda_platform_data h3600_irda_data = { 123 .set_power = h3600_irda_set_power, 124 .set_speed = h3600_irda_set_speed, 125 .startup = h3600_irda_startup, 126 .shutdown = h3600_irda_shutdown, 127 }; 128 129 static void __init h3600_mach_init(void) 130 { 131 h3xxx_mach_init(); 132 133 sa11x0_register_lcd(&h3600_lcd_info); 134 sa11x0_register_irda(&h3600_irda_data); 135 } 136 137 MACHINE_START(H3600, "Compaq iPAQ H3600") 138 .atag_offset = 0x100, 139 .map_io = h3600_map_io, 140 .nr_irqs = SA1100_NR_IRQS, 141 .init_irq = sa1100_init_irq, 142 .init_time = sa1100_timer_init, 143 .init_machine = h3600_mach_init, 144 .init_late = sa11x0_init_late, 145 .restart = sa11x0_restart, 146 MACHINE_END 147 148