forked from luck/tmp_suning_uos_patched
7ade445c26
This patch adds a support for ADS7846 touchscreen driver. The basic functionality was tested, x_plate_ohms and y_plate_ohms were physically measured. The value pressure_max was empirically set to match the measured range, which is affected by x_plate_ohms and ADS samples. The value of keep_vref_on should be set. A tested model (T-Mobile MDA Compact PM10A) doesn't seem to use Vref pin as the input from an external source. On this model the unset keep_vref_on cause high jitter of measured values. SPI framing pin (gpio_cs) must be used in GPIO mode due to an incompatible autoframing of PXA27x controller and ADS7846 device. Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
1023 lines
24 KiB
C
1023 lines
24 KiB
C
/*
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||
* Support for HTC Magician PDA phones:
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* i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
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* and T-Mobile MDA Compact.
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*
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* Copyright (c) 2006-2007 Philipp Zabel
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*
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* Based on hx4700.c, spitz.c and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mfd/htc-pasic3.h>
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#include <linux/mtd/physmap.h>
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#include <linux/pda_power.h>
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#include <linux/platform_data/gpio-htc-egpio.h>
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#include <linux/pwm.h>
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#include <linux/pwm_backlight.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/gpio-regulator.h>
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#include <linux/regulator/machine.h>
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#include <linux/usb/gpio_vbus.h>
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#include <linux/i2c/pxa-i2c.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/system_info.h>
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#include "pxa27x.h"
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#include <mach/magician.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/irda-pxaficp.h>
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#include <linux/platform_data/usb-ohci-pxa27x.h>
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#include <linux/regulator/max1586.h>
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#include <linux/platform_data/pxa2xx_udc.h>
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#include "udc.h"
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#include "pxa27x-udc.h"
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#include "devices.h"
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#include "generic.h"
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#include <linux/spi/spi.h>
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#include <linux/spi/pxa2xx_spi.h>
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#include <linux/spi/ads7846.h>
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static unsigned long magician_pin_config[] __initdata = {
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/* SDRAM and Static Memory I/O Signals */
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GPIO20_nSDCS_2,
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GPIO21_nSDCS_3,
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GPIO15_nCS_1,
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GPIO78_nCS_2, /* PASIC3 */
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GPIO79_nCS_3, /* EGPIO CPLD */
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GPIO80_nCS_4,
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GPIO33_nCS_5,
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/* I2C UDA1380 + OV9640 */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* PWM 0 - LCD backlight */
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GPIO16_PWM0_OUT,
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/* I2S UDA1380 capture */
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GPIO28_I2S_BITCLK_OUT,
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GPIO29_I2S_SDATA_IN,
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GPIO31_I2S_SYNC,
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GPIO113_I2S_SYSCLK,
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/* SSP 1 UDA1380 playback */
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GPIO23_SSP1_SCLK,
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GPIO24_SSP1_SFRM,
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GPIO25_SSP1_TXD,
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/* SSP 2 TSC2046 touchscreen */
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GPIO19_SSP2_SCLK,
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MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH), /* frame as GPIO */
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GPIO89_SSP2_TXD,
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GPIO88_SSP2_RXD,
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/* MMC/SD/SDHC slot */
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GPIO32_MMC_CLK,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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GPIO112_MMC_CMD,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* QCI camera interface */
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GPIO12_CIF_DD_7,
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GPIO17_CIF_DD_6,
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GPIO50_CIF_DD_3,
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GPIO51_CIF_DD_2,
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GPIO52_CIF_DD_4,
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GPIO53_CIF_MCLK,
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GPIO54_CIF_PCLK,
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GPIO55_CIF_DD_1,
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GPIO81_CIF_DD_0,
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GPIO82_CIF_DD_5,
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GPIO84_CIF_FV,
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GPIO85_CIF_LV,
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/* Magician specific input GPIOs */
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GPIO9_GPIO, /* unknown */
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GPIO10_GPIO, /* GSM_IRQ */
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GPIO13_GPIO, /* CPLD_IRQ */
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GPIO107_GPIO, /* DS1WM_IRQ */
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GPIO108_GPIO, /* GSM_READY */
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GPIO115_GPIO, /* nPEN_IRQ */
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};
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/*
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* IrDA
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*/
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static struct pxaficp_platform_data magician_ficp_info = {
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.gpio_pwdown = GPIO83_MAGICIAN_nIR_EN,
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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.gpio_pwdown_inverted = 0,
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};
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/*
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* GPIO Keys
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*/
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#define INIT_KEY(_code, _gpio, _desc) \
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{ \
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.code = KEY_##_code, \
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.gpio = _gpio, \
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.desc = _desc, \
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.type = EV_KEY, \
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.wakeup = 1, \
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}
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static struct gpio_keys_button magician_button_table[] = {
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INIT_KEY(POWER, GPIO0_MAGICIAN_KEY_POWER, "Power button"),
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INIT_KEY(ESC, GPIO37_MAGICIAN_KEY_HANGUP, "Hangup button"),
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INIT_KEY(F10, GPIO38_MAGICIAN_KEY_CONTACTS, "Contacts button"),
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INIT_KEY(CALENDAR, GPIO90_MAGICIAN_KEY_CALENDAR, "Calendar button"),
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INIT_KEY(CAMERA, GPIO91_MAGICIAN_KEY_CAMERA, "Camera button"),
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INIT_KEY(UP, GPIO93_MAGICIAN_KEY_UP, "Up button"),
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INIT_KEY(DOWN, GPIO94_MAGICIAN_KEY_DOWN, "Down button"),
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INIT_KEY(LEFT, GPIO95_MAGICIAN_KEY_LEFT, "Left button"),
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INIT_KEY(RIGHT, GPIO96_MAGICIAN_KEY_RIGHT, "Right button"),
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INIT_KEY(KPENTER, GPIO97_MAGICIAN_KEY_ENTER, "Action button"),
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INIT_KEY(RECORD, GPIO98_MAGICIAN_KEY_RECORD, "Record button"),
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INIT_KEY(VOLUMEUP, GPIO100_MAGICIAN_KEY_VOL_UP, "Volume up"),
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INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
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INIT_KEY(PHONE, GPIO102_MAGICIAN_KEY_PHONE, "Phone button"),
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INIT_KEY(PLAY, GPIO99_MAGICIAN_HEADPHONE_IN, "Headset button"),
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};
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static struct gpio_keys_platform_data gpio_keys_data = {
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.buttons = magician_button_table,
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.nbuttons = ARRAY_SIZE(magician_button_table),
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};
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static struct platform_device gpio_keys = {
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.name = "gpio-keys",
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.dev = {
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.platform_data = &gpio_keys_data,
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},
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.id = -1,
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};
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/*
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* EGPIO (Xilinx CPLD)
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*
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* 32-bit aligned 8-bit registers
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* 16 possible registers (reg windows size), only 7 used:
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* 3x output, 1x irq, 3x input
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*/
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static struct resource egpio_resources[] = {
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[0] = {
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.start = PXA_CS3_PHYS,
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.end = PXA_CS3_PHYS + 0x20 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
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.end = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct htc_egpio_chip egpio_chips[] = {
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[0] = {
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.reg_start = 0,
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.gpio_base = MAGICIAN_EGPIO(0, 0),
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.num_gpios = 24,
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.direction = HTC_EGPIO_OUTPUT,
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/*
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* Depends on modules configuration
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*/
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.initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
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},
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[1] = {
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.reg_start = 4,
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.gpio_base = MAGICIAN_EGPIO(4, 0),
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.num_gpios = 24,
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.direction = HTC_EGPIO_INPUT,
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},
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};
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static struct htc_egpio_platform_data egpio_info = {
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.reg_width = 8,
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.bus_width = 32,
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.irq_base = IRQ_BOARD_START,
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.num_irqs = 4,
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.ack_register = 3,
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.chip = egpio_chips,
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.num_chips = ARRAY_SIZE(egpio_chips),
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};
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static struct platform_device egpio = {
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.name = "htc-egpio",
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.id = -1,
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.resource = egpio_resources,
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.num_resources = ARRAY_SIZE(egpio_resources),
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.dev = {
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.platform_data = &egpio_info,
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},
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};
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/*
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* PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
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*/
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static struct pxafb_mode_info toppoly_modes[] = {
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{
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.pixclock = 96153,
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.bpp = 16,
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.xres = 240,
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.yres = 320,
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.hsync_len = 11,
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.vsync_len = 3,
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.left_margin = 19,
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.upper_margin = 2,
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.right_margin = 10,
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.lower_margin = 2,
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.sync = 0,
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},
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};
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static struct pxafb_mode_info samsung_modes[] = {
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{
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.pixclock = 226469,
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.bpp = 16,
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.xres = 240,
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.yres = 320,
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.hsync_len = 8,
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.vsync_len = 4,
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.left_margin = 9,
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.upper_margin = 4,
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.right_margin = 9,
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.lower_margin = 4,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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},
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};
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static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
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{
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pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
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if (on) {
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gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
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gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
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udelay(2000);
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gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
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udelay(2000);
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/* FIXME: enable LCDC here */
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udelay(2000);
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gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
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udelay(2000);
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gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
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} else {
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msleep(15);
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gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
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udelay(500);
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gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
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udelay(1000);
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gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
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gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
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}
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}
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static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
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{
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pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
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if (on) {
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if (system_rev < 3)
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gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
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else
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gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
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mdelay(6);
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gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
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mdelay(6); /* Avdd -> Voff >5ms */
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gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
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mdelay(16); /* Voff -> Von >(5+10)ms */
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gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
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} else {
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gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
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mdelay(16);
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gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
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mdelay(6);
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gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
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mdelay(6);
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if (system_rev < 3)
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gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
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else
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gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
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}
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}
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static struct pxafb_mach_info toppoly_info = {
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.modes = toppoly_modes,
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.num_modes = 1,
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.fixed_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP,
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.pxafb_lcd_power = toppoly_lcd_power,
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};
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static struct pxafb_mach_info samsung_info = {
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.modes = samsung_modes,
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.num_modes = 1,
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.fixed_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_ALTERNATE_MAPPING,
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.pxafb_lcd_power = samsung_lcd_power,
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};
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/*
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* Backlight
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*/
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static struct pwm_lookup magician_pwm_lookup[] = {
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PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
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PWM_POLARITY_NORMAL),
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};
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/*
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* fixed regulator for pwm_backlight
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*/
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static struct regulator_consumer_supply pwm_backlight_supply[] = {
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REGULATOR_SUPPLY("power", "pwm_backlight"),
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};
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static struct gpio magician_bl_gpios[] = {
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{ EGPIO_MAGICIAN_BL_POWER, GPIOF_DIR_OUT, "Backlight power" },
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{ EGPIO_MAGICIAN_BL_POWER2, GPIOF_DIR_OUT, "Backlight power 2" },
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};
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static int magician_backlight_init(struct device *dev)
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{
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return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
|
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}
|
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|
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static int magician_backlight_notify(struct device *dev, int brightness)
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{
|
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pr_debug("Brightness = %i\n", brightness);
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gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
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if (brightness >= 200) {
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gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
|
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return brightness - 72;
|
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} else {
|
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gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
|
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return brightness;
|
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}
|
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}
|
||
|
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static void magician_backlight_exit(struct device *dev)
|
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{
|
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gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
|
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}
|
||
|
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/*
|
||
* LCD PWM backlight (main)
|
||
*
|
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* MP1521 frequency should be:
|
||
* 100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
|
||
*/
|
||
|
||
static struct platform_pwm_backlight_data backlight_data = {
|
||
.max_brightness = 272,
|
||
.dft_brightness = 100,
|
||
.enable_gpio = -1,
|
||
.init = magician_backlight_init,
|
||
.notify = magician_backlight_notify,
|
||
.exit = magician_backlight_exit,
|
||
};
|
||
|
||
static struct platform_device backlight = {
|
||
.name = "pwm-backlight",
|
||
.id = -1,
|
||
.dev = {
|
||
.parent = &pxa27x_device_pwm0.dev,
|
||
.platform_data = &backlight_data,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* GPIO LEDs, Phone keys backlight, vibra
|
||
*/
|
||
|
||
static struct gpio_led gpio_leds[] = {
|
||
{
|
||
.name = "magician::vibra",
|
||
.default_trigger = "none",
|
||
.gpio = GPIO22_MAGICIAN_VIBRA_EN,
|
||
},
|
||
{
|
||
.name = "magician::phone_bl",
|
||
.default_trigger = "backlight",
|
||
.gpio = GPIO103_MAGICIAN_LED_KP,
|
||
},
|
||
};
|
||
|
||
static struct gpio_led_platform_data gpio_led_info = {
|
||
.leds = gpio_leds,
|
||
.num_leds = ARRAY_SIZE(gpio_leds),
|
||
};
|
||
|
||
static struct platform_device leds_gpio = {
|
||
.name = "leds-gpio",
|
||
.id = -1,
|
||
.dev = {
|
||
.platform_data = &gpio_led_info,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* PASIC3 with DS1WM
|
||
*/
|
||
|
||
static struct resource pasic3_resources[] = {
|
||
[0] = {
|
||
.start = PXA_CS2_PHYS,
|
||
.end = PXA_CS2_PHYS + 0x1b,
|
||
.flags = IORESOURCE_MEM,
|
||
},
|
||
/* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
|
||
[1] = {
|
||
.start = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
|
||
.end = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
|
||
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
|
||
}
|
||
};
|
||
|
||
static struct pasic3_platform_data pasic3_platform_data = {
|
||
.clock_rate = 4000000,
|
||
};
|
||
|
||
static struct platform_device pasic3 = {
|
||
.name = "pasic3",
|
||
.id = -1,
|
||
.num_resources = ARRAY_SIZE(pasic3_resources),
|
||
.resource = pasic3_resources,
|
||
.dev = {
|
||
.platform_data = &pasic3_platform_data,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* PXA UDC
|
||
*/
|
||
|
||
static void magician_udc_command(int cmd)
|
||
{
|
||
if (cmd == PXA2XX_UDC_CMD_CONNECT)
|
||
UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
|
||
else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
|
||
UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
|
||
}
|
||
|
||
static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
|
||
.udc_command = magician_udc_command,
|
||
.gpio_pullup = GPIO27_MAGICIAN_USBC_PUEN,
|
||
};
|
||
|
||
/*
|
||
* USB device VBus detection
|
||
*/
|
||
|
||
static struct resource gpio_vbus_resource = {
|
||
.flags = IORESOURCE_IRQ,
|
||
.start = IRQ_MAGICIAN_VBUS,
|
||
.end = IRQ_MAGICIAN_VBUS,
|
||
};
|
||
|
||
static struct gpio_vbus_mach_info gpio_vbus_info = {
|
||
.gpio_pullup = GPIO27_MAGICIAN_USBC_PUEN,
|
||
.gpio_vbus = EGPIO_MAGICIAN_CABLE_VBUS,
|
||
};
|
||
|
||
static struct platform_device gpio_vbus = {
|
||
.name = "gpio-vbus",
|
||
.id = -1,
|
||
.num_resources = 1,
|
||
.resource = &gpio_vbus_resource,
|
||
.dev = {
|
||
.platform_data = &gpio_vbus_info,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* External power
|
||
*/
|
||
|
||
static int magician_supply_init(struct device *dev)
|
||
{
|
||
int ret = -1;
|
||
|
||
ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
|
||
if (ret) {
|
||
pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
|
||
goto err_ac;
|
||
}
|
||
|
||
ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
|
||
if (ret) {
|
||
pr_err("Cannot request cable detection GPIO (%i)\n", ret);
|
||
goto err_usb;
|
||
}
|
||
|
||
return 0;
|
||
|
||
err_usb:
|
||
gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
|
||
err_ac:
|
||
return ret;
|
||
}
|
||
|
||
static void magician_set_charge(int flags)
|
||
{
|
||
if (flags & PDA_POWER_CHARGE_AC) {
|
||
pr_debug("Charging from AC\n");
|
||
gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
|
||
} else if (flags & PDA_POWER_CHARGE_USB) {
|
||
pr_debug("Charging from USB\n");
|
||
gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
|
||
} else {
|
||
pr_debug("Charging disabled\n");
|
||
gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
|
||
}
|
||
}
|
||
|
||
static int magician_is_ac_online(void)
|
||
{
|
||
return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
|
||
gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
|
||
}
|
||
|
||
static int magician_is_usb_online(void)
|
||
{
|
||
return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
|
||
(!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
|
||
}
|
||
|
||
static void magician_supply_exit(struct device *dev)
|
||
{
|
||
gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
|
||
gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
|
||
}
|
||
|
||
static char *magician_supplicants[] = {
|
||
"ds2760-battery.0", "backup-battery"
|
||
};
|
||
|
||
static struct pda_power_pdata power_supply_info = {
|
||
.init = magician_supply_init,
|
||
.exit = magician_supply_exit,
|
||
.is_ac_online = magician_is_ac_online,
|
||
.is_usb_online = magician_is_usb_online,
|
||
.set_charge = magician_set_charge,
|
||
.supplied_to = magician_supplicants,
|
||
.num_supplicants = ARRAY_SIZE(magician_supplicants),
|
||
};
|
||
|
||
static struct resource power_supply_resources[] = {
|
||
[0] = {
|
||
.name = "ac",
|
||
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
|
||
IORESOURCE_IRQ_LOWEDGE,
|
||
.start = IRQ_MAGICIAN_VBUS,
|
||
.end = IRQ_MAGICIAN_VBUS,
|
||
},
|
||
[1] = {
|
||
.name = "usb",
|
||
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
|
||
IORESOURCE_IRQ_LOWEDGE,
|
||
.start = IRQ_MAGICIAN_VBUS,
|
||
.end = IRQ_MAGICIAN_VBUS,
|
||
},
|
||
};
|
||
|
||
static struct platform_device power_supply = {
|
||
.name = "pda-power",
|
||
.id = -1,
|
||
.dev = {
|
||
.platform_data = &power_supply_info,
|
||
},
|
||
.resource = power_supply_resources,
|
||
.num_resources = ARRAY_SIZE(power_supply_resources),
|
||
};
|
||
|
||
/*
|
||
* Battery charger
|
||
*/
|
||
|
||
static struct regulator_consumer_supply bq24022_consumers[] = {
|
||
REGULATOR_SUPPLY("vbus_draw", NULL),
|
||
REGULATOR_SUPPLY("ac_draw", NULL),
|
||
};
|
||
|
||
static struct regulator_init_data bq24022_init_data = {
|
||
.constraints = {
|
||
.max_uA = 500000,
|
||
.valid_ops_mask = REGULATOR_CHANGE_CURRENT |
|
||
REGULATOR_CHANGE_STATUS,
|
||
},
|
||
.num_consumer_supplies = ARRAY_SIZE(bq24022_consumers),
|
||
.consumer_supplies = bq24022_consumers,
|
||
};
|
||
|
||
static struct gpio bq24022_gpios[] = {
|
||
{ EGPIO_MAGICIAN_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
|
||
};
|
||
|
||
static struct gpio_regulator_state bq24022_states[] = {
|
||
{ .value = 100000, .gpios = (0 << 0) },
|
||
{ .value = 500000, .gpios = (1 << 0) },
|
||
};
|
||
|
||
static struct gpio_regulator_config bq24022_info = {
|
||
.supply_name = "bq24022",
|
||
|
||
.enable_gpio = GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
|
||
.enable_high = 0,
|
||
.enabled_at_boot = 1,
|
||
|
||
.gpios = bq24022_gpios,
|
||
.nr_gpios = ARRAY_SIZE(bq24022_gpios),
|
||
|
||
.states = bq24022_states,
|
||
.nr_states = ARRAY_SIZE(bq24022_states),
|
||
|
||
.type = REGULATOR_CURRENT,
|
||
.init_data = &bq24022_init_data,
|
||
};
|
||
|
||
static struct platform_device bq24022 = {
|
||
.name = "gpio-regulator",
|
||
.id = -1,
|
||
.dev = {
|
||
.platform_data = &bq24022_info,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* fixed regulator for ads7846
|
||
*/
|
||
|
||
static struct regulator_consumer_supply ads7846_supply =
|
||
REGULATOR_SUPPLY("vcc", "spi2.0");
|
||
|
||
static struct regulator_init_data vads7846_regulator = {
|
||
.constraints = {
|
||
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
|
||
},
|
||
.num_consumer_supplies = 1,
|
||
.consumer_supplies = &ads7846_supply,
|
||
};
|
||
|
||
static struct fixed_voltage_config vads7846 = {
|
||
.supply_name = "vads7846",
|
||
.microvolts = 3300000, /* probably */
|
||
.gpio = -EINVAL,
|
||
.startup_delay = 0,
|
||
.init_data = &vads7846_regulator,
|
||
};
|
||
|
||
static struct platform_device vads7846_device = {
|
||
.name = "reg-fixed-voltage",
|
||
.id = -1,
|
||
.dev = {
|
||
.platform_data = &vads7846,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* Vcore regulator MAX1587A
|
||
*/
|
||
|
||
static struct regulator_consumer_supply magician_max1587a_consumers[] = {
|
||
REGULATOR_SUPPLY("vcc_core", NULL),
|
||
};
|
||
|
||
static struct regulator_init_data magician_max1587a_v3_info = {
|
||
.constraints = {
|
||
.name = "vcc_core range",
|
||
.min_uV = 700000,
|
||
.max_uV = 1475000,
|
||
.always_on = 1,
|
||
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
|
||
},
|
||
.consumer_supplies = magician_max1587a_consumers,
|
||
.num_consumer_supplies = ARRAY_SIZE(magician_max1587a_consumers),
|
||
};
|
||
|
||
static struct max1586_subdev_data magician_max1587a_subdevs[] = {
|
||
{
|
||
.name = "vcc_core",
|
||
.id = MAX1586_V3,
|
||
.platform_data = &magician_max1587a_v3_info,
|
||
}
|
||
};
|
||
|
||
static struct max1586_platform_data magician_max1587a_info = {
|
||
.subdevs = magician_max1587a_subdevs,
|
||
.num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
|
||
/*
|
||
* NOTICE measured directly on the PCB (board_id == 0x3a), but
|
||
* if R24 is present, it will boost the voltage
|
||
* (write 1.475V, get 1.645V and smoke)
|
||
*/
|
||
.v3_gain = MAX1586_GAIN_NO_R24,
|
||
};
|
||
|
||
static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
|
||
{
|
||
I2C_BOARD_INFO("max1586", 0x14),
|
||
.platform_data = &magician_max1587a_info,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* MMC/SD
|
||
*/
|
||
|
||
static int magician_mci_init(struct device *dev,
|
||
irq_handler_t detect_irq, void *data)
|
||
{
|
||
return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
|
||
"mmc card detect", data);
|
||
}
|
||
|
||
static void magician_mci_exit(struct device *dev, void *data)
|
||
{
|
||
free_irq(IRQ_MAGICIAN_SD, data);
|
||
}
|
||
|
||
static struct pxamci_platform_data magician_mci_info = {
|
||
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
|
||
.init = magician_mci_init,
|
||
.exit = magician_mci_exit,
|
||
.gpio_card_detect = -1,
|
||
.gpio_card_ro = EGPIO_MAGICIAN_nSD_READONLY,
|
||
.gpio_card_ro_invert = 1,
|
||
.gpio_power = EGPIO_MAGICIAN_SD_POWER,
|
||
};
|
||
|
||
|
||
/*
|
||
* USB OHCI
|
||
*/
|
||
|
||
static struct pxaohci_platform_data magician_ohci_info = {
|
||
.port_mode = PMM_PERPORT_MODE,
|
||
/* port1: CSR Bluetooth, port2: OTG with UDC */
|
||
.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
|
||
.power_budget = 0,
|
||
.power_on_delay = 100,
|
||
};
|
||
|
||
/*
|
||
* StrataFlash
|
||
*/
|
||
|
||
static int magician_flash_init(struct platform_device *pdev)
|
||
{
|
||
int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
|
||
|
||
if (ret) {
|
||
pr_err("Cannot request flash enable GPIO (%i)\n", ret);
|
||
return ret;
|
||
}
|
||
|
||
ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
|
||
if (ret) {
|
||
pr_err("Cannot set direction for flash enable (%i)\n", ret);
|
||
gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
static void magician_set_vpp(struct platform_device *pdev, int vpp)
|
||
{
|
||
gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
|
||
}
|
||
|
||
static void magician_flash_exit(struct platform_device *pdev)
|
||
{
|
||
gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
|
||
}
|
||
|
||
static struct resource strataflash_resource = {
|
||
.start = PXA_CS0_PHYS,
|
||
.end = PXA_CS0_PHYS + SZ_64M - 1,
|
||
.flags = IORESOURCE_MEM,
|
||
};
|
||
|
||
static struct mtd_partition magician_flash_parts[] = {
|
||
{
|
||
.name = "Bootloader",
|
||
.offset = 0x0,
|
||
.size = 0x40000,
|
||
.mask_flags = MTD_WRITEABLE, /* EXPERIMENTAL */
|
||
},
|
||
{
|
||
.name = "Linux Kernel",
|
||
.offset = 0x40000,
|
||
.size = MTDPART_SIZ_FULL,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* physmap-flash driver
|
||
*/
|
||
|
||
static struct physmap_flash_data strataflash_data = {
|
||
.width = 4,
|
||
.init = magician_flash_init,
|
||
.set_vpp = magician_set_vpp,
|
||
.exit = magician_flash_exit,
|
||
.parts = magician_flash_parts,
|
||
.nr_parts = ARRAY_SIZE(magician_flash_parts),
|
||
};
|
||
|
||
static struct platform_device strataflash = {
|
||
.name = "physmap-flash",
|
||
.id = -1,
|
||
.resource = &strataflash_resource,
|
||
.num_resources = 1,
|
||
.dev = {
|
||
.platform_data = &strataflash_data,
|
||
},
|
||
};
|
||
|
||
/*
|
||
* PXA I2C main controller
|
||
*/
|
||
|
||
static struct i2c_pxa_platform_data i2c_info = {
|
||
/* OV9640 I2C device doesn't support fast mode */
|
||
.fast_mode = 0,
|
||
};
|
||
|
||
/*
|
||
* PXA I2C power controller
|
||
*/
|
||
|
||
static struct i2c_pxa_platform_data magician_i2c_power_info = {
|
||
.fast_mode = 1,
|
||
};
|
||
|
||
/*
|
||
* Touchscreen
|
||
*/
|
||
|
||
static struct ads7846_platform_data ads7846_pdata = {
|
||
.model = 7846,
|
||
.x_plate_ohms = 317,
|
||
.y_plate_ohms = 500,
|
||
.pressure_max = 1023, /* with x plate ohms it will overflow 255 */
|
||
.debounce_max = 3, /* first readout is always bad */
|
||
.debounce_tol = 30,
|
||
.debounce_rep = 0,
|
||
.gpio_pendown = GPIO115_MAGICIAN_nPEN_IRQ,
|
||
.keep_vref_on = 1,
|
||
.wakeup = true,
|
||
.vref_delay_usecs = 100,
|
||
.penirq_recheck_delay_usecs = 100,
|
||
};
|
||
|
||
struct pxa2xx_spi_chip tsc2046_chip_info = {
|
||
.tx_threshold = 1,
|
||
.rx_threshold = 2,
|
||
.timeout = 64,
|
||
/* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
|
||
.gpio_cs = GPIO14_MAGICIAN_TSC2046_CS,
|
||
};
|
||
|
||
static struct pxa2xx_spi_master magician_spi_info = {
|
||
.num_chipselect = 1,
|
||
.enable_dma = 1,
|
||
};
|
||
|
||
static struct spi_board_info ads7846_spi_board_info[] __initdata = {
|
||
{
|
||
.modalias = "ads7846",
|
||
.bus_num = 2,
|
||
.max_speed_hz = 2500000,
|
||
.platform_data = &ads7846_pdata,
|
||
.controller_data = &tsc2046_chip_info,
|
||
.irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
|
||
},
|
||
};
|
||
|
||
/*
|
||
* Platform devices
|
||
*/
|
||
|
||
static struct platform_device *devices[] __initdata = {
|
||
&gpio_keys,
|
||
&egpio,
|
||
&backlight,
|
||
&pasic3,
|
||
&bq24022,
|
||
&gpio_vbus,
|
||
&power_supply,
|
||
&strataflash,
|
||
&leds_gpio,
|
||
&vads7846_device,
|
||
};
|
||
|
||
static struct gpio magician_global_gpios[] = {
|
||
{ GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
|
||
{ GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
|
||
|
||
/* NOTICE valid LCD init sequence */
|
||
{ GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
|
||
{ GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
|
||
{ GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
|
||
};
|
||
|
||
static void __init magician_init(void)
|
||
{
|
||
void __iomem *cpld;
|
||
int lcd_select;
|
||
int err;
|
||
|
||
pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
|
||
err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
|
||
if (err)
|
||
pr_err("magician: Failed to request global GPIOs: %d\n", err);
|
||
|
||
pxa_set_ffuart_info(NULL);
|
||
pxa_set_btuart_info(NULL);
|
||
|
||
pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
|
||
|
||
pxa_set_ficp_info(&magician_ficp_info);
|
||
pxa27x_set_i2c_power_info(&magician_i2c_power_info);
|
||
pxa_set_i2c_info(&i2c_info);
|
||
|
||
i2c_register_board_info(1,
|
||
ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
|
||
|
||
pxa_set_mci_info(&magician_mci_info);
|
||
pxa_set_ohci_info(&magician_ohci_info);
|
||
pxa_set_udc_info(&magician_udc_info);
|
||
|
||
/* Check LCD type we have */
|
||
cpld = ioremap_nocache(PXA_CS3_PHYS, 0x1000);
|
||
if (cpld) {
|
||
u8 board_id = __raw_readb(cpld + 0x14);
|
||
|
||
iounmap(cpld);
|
||
system_rev = board_id & 0x7;
|
||
lcd_select = board_id & 0x8;
|
||
pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
|
||
if (lcd_select && (system_rev < 3))
|
||
/* NOTICE valid LCD init sequence */
|
||
gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
|
||
GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
|
||
pxa_set_fb_info(NULL,
|
||
lcd_select ? &samsung_info : &toppoly_info);
|
||
} else
|
||
pr_err("LCD detection: CPLD mapping failed\n");
|
||
|
||
pxa2xx_set_spi_info(2, &magician_spi_info);
|
||
spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
|
||
|
||
regulator_register_always_on(0, "power", pwm_backlight_supply,
|
||
ARRAY_SIZE(pwm_backlight_supply), 5000000);
|
||
|
||
platform_add_devices(ARRAY_AND_SIZE(devices));
|
||
}
|
||
|
||
MACHINE_START(MAGICIAN, "HTC Magician")
|
||
.atag_offset = 0x100,
|
||
.map_io = pxa27x_map_io,
|
||
.nr_irqs = MAGICIAN_NR_IRQS,
|
||
.init_irq = pxa27x_init_irq,
|
||
.handle_irq = pxa27x_handle_irq,
|
||
.init_machine = magician_init,
|
||
.init_time = pxa_timer_init,
|
||
.restart = pxa_restart,
|
||
MACHINE_END
|