/*
* Driver for AT91/AT32 LCD Controller
*
* Copyright (C) 2007 Atmel Corporation
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/backlight.h>
#include <linux/gfp.h>
#include <linux/module.h>
#include <linux/platform_data/atmel.h>
#include <mach/cpu.h>
#include <asm/gpio.h>
#include <video/atmel_lcdc.h>
#define lcdc_readl(sinfo, reg) __raw_readl((sinfo)->mmio+(reg))
#define lcdc_writel(sinfo, reg, val) __raw_writel((val), (sinfo)->mmio+(reg))
/* configurable parameters */
#define ATMEL_LCDC_CVAL_DEFAULT 0xc8
#define ATMEL_LCDC_DMA_BURST_LEN 8 /* words */
#define ATMEL_LCDC_FIFO_SIZE 512 /* words */
struct atmel_lcdfb_config {
bool have_alt_pixclock;
bool have_hozval;
bool have_intensity_bit;
};
static struct atmel_lcdfb_config at91sam9261_config = {
.have_hozval = true,
.have_intensity_bit = true,
};
static struct atmel_lcdfb_config at91sam9263_config = {
.have_intensity_bit = true,
};
static struct atmel_lcdfb_config at91sam9g10_config = {
.have_hozval = true,
};
static struct atmel_lcdfb_config at91sam9g45_config = {
.have_alt_pixclock = true,
};
static struct atmel_lcdfb_config at91sam9g45es_config = {
};
static struct atmel_lcdfb_config at91sam9rl_config = {
.have_intensity_bit = true,
};
static struct atmel_lcdfb_config at32ap_config = {
.have_hozval = true,
};
static const struct platform_device_id atmel_lcdfb_devtypes[] = {
{
.name = "at91sam9261-lcdfb",
.driver_data = (unsigned long)&at91sam9261_config,
}, {
.name = "at91sam9263-lcdfb",
.driver_data = (unsigned long)&at91sam9263_config,
}, {
.name = "at91sam9g10-lcdfb",
.driver_data = (unsigned long)&at91sam9g10_config,
}, {
.name = "at91sam9g45-lcdfb",
.driver_data = (unsigned long)&at91sam9g45_config,
}, {
.name = "at91sam9g45es-lcdfb",
.driver_data = (unsigned long)&at91sam9g45es_config,
}, {
.name = "at91sam9rl-lcdfb",
.driver_data = (unsigned long)&at91sam9rl_config,
}, {
.name = "at32ap-lcdfb",
.driver_data = (unsigned long)&at32ap_config,
}, {
/* terminator */
}
};
static struct atmel_lcdfb_config *
atmel_lcdfb_get_config(struct platform_device *pdev)
{
unsigned long data;
data = platform_get_device_id(pdev)->driver_data;
return (struct atmel_lcdfb_config *)data;
}
#if defined(CONFIG_ARCH_AT91)
#define ATMEL_LCDFB_FBINFO_DEFAULT (FBINFO_DEFAULT \
| FBINFO_PARTIAL_PAN_OK \
| FBINFO_HWACCEL_YPAN)
static inline void