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fdabc466f3
Instead of using the legacy GPIO API and keeping track on polarity inversion semantics in the driver, switch to use GPIO descriptors for this driver and change all consumers in the process. This makes it possible to retire platform data completely: the only remaining platform data member was "wakeup" which was intended to make the vbus interrupt wakeup capable, but was not set by any users and thus remained unused. VBUS was not waking any devices up. Leave a comment about it so later developers using the platform can consider setting it to always enabled so plugging in USB wakes up the platform. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Felipe Balbi <balbi@kernel.org> Acked-by: Sylwester Nawrocki <snawrocki@kernel.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200123155013.93249-1-linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
432 lines
11 KiB
C
432 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Hardware definitions for Palm Zire72
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*
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* Authors:
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* Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
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* Sergey Lapin <slapin@ossfans.org>
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* Alex Osborne <bobofdoom@gmail.com>
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* Jan Herman <2hp@seznam.cz>
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*
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* Rewrite for mainline:
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* Marek Vasut <marek.vasut@gmail.com>
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*
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* (find more info at www.hackndev.com)
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*/
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#include <linux/platform_device.h>
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#include <linux/syscore_ops.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/pda_power.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio.h>
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#include <linux/wm97xx.h>
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#include <linux/power_supply.h>
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#include <linux/platform_data/i2c-gpio.h>
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#include <linux/gpio/machine.h>
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#include <asm/mach-types.h>
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#include <asm/suspend.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include "pxa27x.h"
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#include <mach/audio.h>
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#include "palmz72.h"
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/irda-pxaficp.h>
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#include <linux/platform_data/keypad-pxa27x.h>
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#include "udc.h"
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#include <linux/platform_data/asoc-palm27x.h>
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#include "palm27x.h"
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#include "pm.h"
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#include <linux/platform_data/media/camera-pxa.h>
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#include <media/soc_camera.h>
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#include "generic.h"
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#include "devices.h"
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static unsigned long palmz72_pin_config[] __initdata = {
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/* MMC */
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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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GPIO14_GPIO, /* SD detect */
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GPIO115_GPIO, /* SD RO */
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GPIO98_GPIO, /* SD power */
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO89_AC97_SYSCLK,
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GPIO113_AC97_nRESET,
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/* IrDA */
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GPIO49_GPIO, /* ir disable */
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GPIO46_FICP_RXD,
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GPIO47_FICP_TXD,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* USB */
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GPIO15_GPIO, /* usb detect */
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GPIO95_GPIO, /* usb pullup */
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/* Matrix keypad */
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GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
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GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
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GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
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GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
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GPIO103_KP_MKOUT_0,
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GPIO104_KP_MKOUT_1,
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GPIO105_KP_MKOUT_2,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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GPIO20_GPIO, /* bl power */
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GPIO21_GPIO, /* LCD border switch */
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GPIO22_GPIO, /* LCD border color */
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GPIO96_GPIO, /* lcd power */
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/* PXA Camera */
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GPIO81_CIF_DD_0,
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GPIO48_CIF_DD_5,
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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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GPIO84_CIF_FV,
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GPIO85_CIF_LV,
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GPIO93_CIF_DD_6,
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GPIO108_CIF_DD_7,
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GPIO56_GPIO, /* OV9640 Powerdown */
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GPIO57_GPIO, /* OV9640 Reset */
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GPIO91_GPIO, /* OV9640 Power */
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/* I2C */
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GPIO117_GPIO, /* I2C_SCL */
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GPIO118_GPIO, /* I2C_SDA */
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/* Misc. */
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GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
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GPIO88_GPIO, /* green led */
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GPIO27_GPIO, /* WM9712 IRQ */
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};
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/******************************************************************************
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* GPIO keyboard
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******************************************************************************/
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#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
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static const unsigned int palmz72_matrix_keys[] = {
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KEY(0, 0, KEY_POWER),
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KEY(0, 1, KEY_F1),
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KEY(0, 2, KEY_ENTER),
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KEY(1, 0, KEY_F2),
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KEY(1, 1, KEY_F3),
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KEY(1, 2, KEY_F4),
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KEY(2, 0, KEY_UP),
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KEY(2, 2, KEY_DOWN),
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KEY(3, 0, KEY_RIGHT),
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KEY(3, 2, KEY_LEFT),
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};
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static struct matrix_keymap_data almz72_matrix_keymap_data = {
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.keymap = palmz72_matrix_keys,
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.keymap_size = ARRAY_SIZE(palmz72_matrix_keys),
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};
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static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
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.matrix_key_rows = 4,
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.matrix_key_cols = 3,
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.matrix_keymap_data = &almz72_matrix_keymap_data,
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.debounce_interval = 30,
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};
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static void __init palmz72_kpc_init(void)
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{
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pxa_set_keypad_info(&palmz72_keypad_platform_data);
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}
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#else
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static inline void palmz72_kpc_init(void) {}
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#endif
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/******************************************************************************
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* LEDs
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******************************************************************************/
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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static struct gpio_led gpio_leds[] = {
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{
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.name = "palmz72:green:led",
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.default_trigger = "none",
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.gpio = GPIO_NR_PALMZ72_LED_GREEN,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device palmz72_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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}
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};
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static void __init palmz72_leds_init(void)
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{
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platform_device_register(&palmz72_leds);
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}
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#else
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static inline void palmz72_leds_init(void) {}
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#endif
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#ifdef CONFIG_PM
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/* We have some black magic here
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* PalmOS ROM on recover expects special struct physical address
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* to be transferred via PSPR. Using this struct PalmOS restores
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* its state after sleep. As for Linux, we need to setup it the
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* same way. More than that, PalmOS ROM changes some values in memory.
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* For now only one location is found, which needs special treatment.
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* Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
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* for reading backtraces for me :)
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*/
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#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
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static struct palmz72_resume_info palmz72_resume_info = {
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.magic0 = 0xb4e6,
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.magic1 = 1,
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/* reset state, MMU off etc */
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.arm_control = 0,
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.aux_control = 0,
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.ttb = 0,
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.domain_access = 0,
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.process_id = 0,
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};
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static unsigned long store_ptr;
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/* syscore_ops for Palm Zire 72 PM */
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static int palmz72_pm_suspend(void)
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{
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/* setup the resume_info struct for the original bootloader */
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palmz72_resume_info.resume_addr = (u32) cpu_resume;
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/* Storing memory touched by ROM */
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store_ptr = *PALMZ72_SAVE_DWORD;
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/* Setting PSPR to a proper value */
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PSPR = __pa_symbol(&palmz72_resume_info);
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return 0;
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}
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static void palmz72_pm_resume(void)
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{
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*PALMZ72_SAVE_DWORD = store_ptr;
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}
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static struct syscore_ops palmz72_pm_syscore_ops = {
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.suspend = palmz72_pm_suspend,
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.resume = palmz72_pm_resume,
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};
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static int __init palmz72_pm_init(void)
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{
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if (machine_is_palmz72()) {
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register_syscore_ops(&palmz72_pm_syscore_ops);
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return 0;
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}
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return -ENODEV;
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}
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device_initcall(palmz72_pm_init);
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#endif
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/******************************************************************************
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* SoC Camera
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******************************************************************************/
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#if defined(CONFIG_SOC_CAMERA_OV9640) || \
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defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
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static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
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.flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
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PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
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.mclk_10khz = 2600,
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};
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/* Board I2C devices. */
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static struct i2c_board_info palmz72_i2c_device[] = {
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{
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I2C_BOARD_INFO("ov9640", 0x30),
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}
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};
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static int palmz72_camera_power(struct device *dev, int power)
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{
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gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
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mdelay(50);
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return 0;
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}
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static int palmz72_camera_reset(struct device *dev)
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{
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gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
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mdelay(50);
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gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
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mdelay(50);
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return 0;
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}
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static struct soc_camera_link palmz72_iclink = {
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.bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
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.board_info = &palmz72_i2c_device[0],
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.i2c_adapter_id = 0,
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.module_name = "ov96xx",
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.power = &palmz72_camera_power,
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.reset = &palmz72_camera_reset,
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.flags = SOCAM_DATAWIDTH_8,
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};
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static struct gpiod_lookup_table palmz72_i2c_gpiod_table = {
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.dev_id = "i2c-gpio.0",
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.table = {
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GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0,
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GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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GPIO_LOOKUP_IDX("gpio-pxa", 117, NULL, 1,
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GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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},
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};
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static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
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.udelay = 10,
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.timeout = 100,
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};
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static struct platform_device palmz72_i2c_bus_device = {
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.name = "i2c-gpio",
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.id = 0, /* we use this as a replacement for i2c-pxa */
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.dev = {
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.platform_data = &palmz72_i2c_bus_data,
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}
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};
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static struct platform_device palmz72_camera = {
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.name = "soc-camera-pdrv",
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.id = -1,
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.dev = {
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.platform_data = &palmz72_iclink,
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},
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};
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/* Here we request the camera GPIOs and configure them. We power up the camera
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* module, deassert the reset pin, but put it into powerdown (low to no power
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* consumption) mode. This allows us to later bring the module up fast. */
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static struct gpio palmz72_camera_gpios[] = {
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{ GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
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{ GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
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{ GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
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};
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static inline void __init palmz72_cam_gpio_init(void)
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{
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int ret;
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ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
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if (!ret)
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gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
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else
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printk(KERN_ERR "Camera GPIO init failed!\n");
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return;
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}
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static void __init palmz72_camera_init(void)
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{
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palmz72_cam_gpio_init();
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pxa_set_camera_info(&palmz72_pxacamera_platform_data);
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gpiod_add_lookup_table(&palmz72_i2c_gpiod_table);
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platform_device_register(&palmz72_i2c_bus_device);
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platform_device_register(&palmz72_camera);
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}
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#else
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static inline void palmz72_camera_init(void) {}
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#endif
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static struct gpiod_lookup_table palmz72_mci_gpio_table = {
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.dev_id = "pxa2xx-mci.0",
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.table = {
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N,
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"cd", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO,
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"wp", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N,
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"power", GPIO_ACTIVE_LOW),
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{ },
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},
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};
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/******************************************************************************
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* Machine init
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******************************************************************************/
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static void __init palmz72_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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palm27x_mmc_init(&palmz72_mci_gpio_table);
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palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
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palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
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GPIO_NR_PALMZ72_USB_PULLUP, 0);
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palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
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palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
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-1, 113);
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palm27x_pwm_init(-1, -1);
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palm27x_power_init(-1, -1);
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palm27x_pmic_init();
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palmz72_kpc_init();
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palmz72_leds_init();
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palmz72_camera_init();
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}
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MACHINE_START(PALMZ72, "Palm Zire72")
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.atag_offset = 0x100,
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.map_io = pxa27x_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa27x_init_irq,
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.handle_irq = pxa27x_handle_irq,
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.init_time = pxa_timer_init,
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.init_machine = palmz72_init,
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.restart = pxa_restart,
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MACHINE_END
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