// SPDX-License-Identifier: GPL-2.0-only

  /*

   * Support for Compaq iPAQ H3600 handheld computer

   *

   * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
   * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>

   */

  #include <linux/init.h>
  #include <linux/kernel.h>

  #include <linux/gpio.h>

  #include <video/sa1100fb.h>

  #include <asm/mach-types.h>

  #include <asm/mach/arch.h>

  #include <linux/platform_data/irda-sa11x0.h>

  #include <mach/h3xxx.h>

  #include <mach/irqs.h>

  
  #include "generic.h"

  /*
   * helper for sa1100fb
   */

  static struct gpio h3600_lcd_gpio[] = {
  	{ H3XXX_EGPIO_LCD_ON,	GPIOF_OUT_INIT_LOW,	"LCD power" },
  	{ H3600_EGPIO_LCD_PCI,	GPIOF_OUT_INIT_LOW,	"LCD control" },
  	{ H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW,	"LCD 5v" },
  	{ H3600_EGPIO_LVDD_ON,	GPIOF_OUT_INIT_LOW,	"LCD 9v/-6.5v" },
  };
  
  static bool h3600_lcd_request(void)
  {
  	static bool h3600_lcd_ok;
  	int rc;
  
  	if (h3600_lcd_ok)
  		return true;
  
  	rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio));
  	if (rc)
  		pr_err("%s: can't request GPIOs
  ", __func__);
  	else
  		h3600_lcd_ok = true;
  
  	return h3600_lcd_ok;
  }

  static void h3600_lcd_power(int enable)
  {

  	if (!h3600_lcd_request())
  		return;

  
  	gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
  	gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
  	gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
  	gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);

  }

  static const struct sa1100fb_rgb h3600_rgb_16 = {
  	.red	= { .offset = 12, .length = 4, },
  	.green	= { .offset = 7,  .length = 4, },
  	.blue	= { .offset = 1,  .length = 4, },
  	.transp	= { .offset = 0,  .length = 0, },
  };
  
  static struct sa1100fb_mach_info h3600_lcd_info = {
  	.pixclock	= 174757, 	.bpp		= 16,
  	.xres		= 320,		.yres		= 240,
  
  	.hsync_len	= 3,		.vsync_len	= 3,
  	.left_margin	= 12,		.upper_margin	= 10,
  	.right_margin	= 17,		.lower_margin	= 1,
  
  	.cmap_static	= 1,
  
  	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
  	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
  
  	.rgb[RGB_16] = &h3600_rgb_16,

  
  	.lcd_power = h3600_lcd_power,

  };

  static void __init h3600_map_io(void)
  {
  	h3xxx_map_io();

  }

  /*
   * This turns the IRDA power on or off on the Compaq H3600
   */

  static struct gpio h3600_irda_gpio[] = {
  	{ H3600_EGPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
  	{ H3600_EGPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
  };

  static int h3600_irda_set_power(struct device *dev, unsigned int state)
  {

  	gpio_set_value(H3600_EGPIO_IR_ON, state);

  	return 0;
  }
  
  static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
  {

  	gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
  }
  
  static int h3600_irda_startup(struct device *dev)
  {

  	return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));

  }
  
  static void h3600_irda_shutdown(struct device *dev)
  {

  	return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));

  }
  
  static struct irda_platform_data h3600_irda_data = {
  	.set_power	= h3600_irda_set_power,
  	.set_speed	= h3600_irda_set_speed,

  	.startup	= h3600_irda_startup,
  	.shutdown	= h3600_irda_shutdown,

  };

  static void __init h3600_mach_init(void)

  {
  	h3xxx_mach_init();

  	sa11x0_register_lcd(&h3600_lcd_info);

  	sa11x0_register_irda(&h3600_irda_data);

  }

  MACHINE_START(H3600, "Compaq iPAQ H3600")

  	.atag_offset	= 0x100,

  	.map_io		= h3600_map_io,

  	.nr_irqs	= SA1100_NR_IRQS,

  	.init_irq	= sa1100_init_irq,

  	.init_time	= sa1100_timer_init,

  	.init_machine	= h3600_mach_init,

  	.init_late	= sa11x0_init_late,

  	.restart	= sa11x0_restart,

  MACHINE_END