mirror of
https://github.com/torvalds/linux
synced 2024-10-16 16:29:20 +00:00
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>
531 lines
13 KiB
C
531 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-pxa/palmtc.c
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*
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* Support for the Palm Tungsten|C
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*
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* Author: Marek Vasut <marek.vasut@gmail.com>
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*
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* Based on work of:
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* Petr Blaha <p3t3@centrum.cz>
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* Chetan S. Kumar <shivakumar.chetan@gmail.com>
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*/
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/input.h>
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#include <linux/pwm.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio/machine.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/ucb1400.h>
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#include <linux/power_supply.h>
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#include <linux/gpio_keys.h>
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#include <linux/mtd/physmap.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/mach/map.h>
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#include "pxa25x.h"
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#include <mach/audio.h>
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#include <mach/palmtc.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 "udc.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 palmtc_pin_config[] __initdata = {
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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GPIO12_GPIO, /* detect */
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GPIO32_GPIO, /* power */
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GPIO54_GPIO, /* r/o switch */
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/* PCMCIA */
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GPIO52_nPCE_1,
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GPIO53_nPCE_2,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO49_nPWE,
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GPIO48_nPOE,
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GPIO52_nPCE_1,
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GPIO53_nPCE_2,
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GPIO57_nIOIS16,
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GPIO56_nPWAIT,
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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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/* IrDA */
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GPIO45_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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GPIO17_PWM1_OUT,
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/* USB */
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GPIO4_GPIO, /* detect */
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GPIO36_GPIO, /* pullup */
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* MATRIX KEYPAD */
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GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 0 */
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GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 1 */
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GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 2 */
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GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 3 */
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GPIO18_GPIO | MFP_LPM_DRIVE_LOW, /* out 0 */
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GPIO19_GPIO | MFP_LPM_DRIVE_LOW, /* out 1 */
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GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* out 2 */
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GPIO21_GPIO | MFP_LPM_DRIVE_LOW, /* out 3 */
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GPIO22_GPIO | MFP_LPM_DRIVE_LOW, /* out 4 */
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GPIO23_GPIO | MFP_LPM_DRIVE_LOW, /* out 5 */
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GPIO24_GPIO | MFP_LPM_DRIVE_LOW, /* out 6 */
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GPIO25_GPIO | MFP_LPM_DRIVE_LOW, /* out 7 */
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GPIO26_GPIO | MFP_LPM_DRIVE_LOW, /* out 8 */
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GPIO27_GPIO | MFP_LPM_DRIVE_LOW, /* out 9 */
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GPIO79_GPIO | MFP_LPM_DRIVE_LOW, /* out 10 */
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GPIO80_GPIO | MFP_LPM_DRIVE_LOW, /* out 11 */
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/* PXA GPIO KEYS */
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GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH, /* hotsync button on cradle */
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/* MISC */
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GPIO1_RST, /* reset */
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GPIO2_GPIO, /* earphone detect */
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GPIO16_GPIO, /* backlight switch */
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};
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/******************************************************************************
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* SD/MMC card controller
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******************************************************************************/
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#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
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static struct pxamci_platform_data palmtc_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.detect_delay_ms = 200,
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};
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static struct gpiod_lookup_table palmtc_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_PALMTC_SD_DETECT_N,
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"cd", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_READONLY,
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"wp", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_POWER,
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"power", GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static void __init palmtc_mmc_init(void)
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{
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gpiod_add_lookup_table(&palmtc_mci_gpio_table);
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pxa_set_mci_info(&palmtc_mci_platform_data);
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}
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#else
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static inline void palmtc_mmc_init(void) {}
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#endif
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/******************************************************************************
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* GPIO keys
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******************************************************************************/
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button palmtc_pxa_buttons[] = {
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{KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
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};
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static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
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.buttons = palmtc_pxa_buttons,
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.nbuttons = ARRAY_SIZE(palmtc_pxa_buttons),
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};
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static struct platform_device palmtc_pxa_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &palmtc_pxa_keys_data,
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},
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};
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static void __init palmtc_keys_init(void)
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{
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platform_device_register(&palmtc_pxa_keys);
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}
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#else
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static inline void palmtc_keys_init(void) {}
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#endif
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/******************************************************************************
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* Backlight
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******************************************************************************/
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#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
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static struct pwm_lookup palmtc_pwm_lookup[] = {
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PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
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PWM_POLARITY_NORMAL),
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};
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static struct platform_pwm_backlight_data palmtc_backlight_data = {
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.max_brightness = PALMTC_MAX_INTENSITY,
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.dft_brightness = PALMTC_MAX_INTENSITY,
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.enable_gpio = GPIO_NR_PALMTC_BL_POWER,
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};
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static struct platform_device palmtc_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa25x_device_pwm1.dev,
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.platform_data = &palmtc_backlight_data,
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},
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};
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static void __init palmtc_pwm_init(void)
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{
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pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
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platform_device_register(&palmtc_backlight);
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}
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#else
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static inline void palmtc_pwm_init(void) {}
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#endif
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/******************************************************************************
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* IrDA
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******************************************************************************/
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#if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
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static struct pxaficp_platform_data palmtc_ficp_platform_data = {
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.gpio_pwdown = GPIO_NR_PALMTC_IR_DISABLE,
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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};
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static void __init palmtc_irda_init(void)
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{
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pxa_set_ficp_info(&palmtc_ficp_platform_data);
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}
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#else
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static inline void palmtc_irda_init(void) {}
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#endif
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/******************************************************************************
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* Keyboard
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******************************************************************************/
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#if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
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static const uint32_t palmtc_matrix_keys[] = {
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KEY(0, 0, KEY_F1),
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KEY(0, 1, KEY_X),
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KEY(0, 2, KEY_POWER),
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KEY(0, 3, KEY_TAB),
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KEY(0, 4, KEY_A),
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KEY(0, 5, KEY_Q),
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KEY(0, 6, KEY_LEFTSHIFT),
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KEY(0, 7, KEY_Z),
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KEY(0, 8, KEY_S),
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KEY(0, 9, KEY_W),
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KEY(0, 10, KEY_E),
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KEY(0, 11, KEY_UP),
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KEY(1, 0, KEY_F2),
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KEY(1, 1, KEY_DOWN),
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KEY(1, 3, KEY_D),
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KEY(1, 4, KEY_C),
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KEY(1, 5, KEY_F),
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KEY(1, 6, KEY_R),
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KEY(1, 7, KEY_SPACE),
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KEY(1, 8, KEY_V),
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KEY(1, 9, KEY_G),
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KEY(1, 10, KEY_T),
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KEY(1, 11, KEY_LEFT),
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KEY(2, 0, KEY_F3),
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KEY(2, 1, KEY_LEFTCTRL),
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KEY(2, 3, KEY_H),
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KEY(2, 4, KEY_Y),
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KEY(2, 5, KEY_N),
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KEY(2, 6, KEY_J),
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KEY(2, 7, KEY_U),
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KEY(2, 8, KEY_M),
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KEY(2, 9, KEY_K),
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KEY(2, 10, KEY_I),
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KEY(2, 11, KEY_RIGHT),
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KEY(3, 0, KEY_F4),
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KEY(3, 1, KEY_ENTER),
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KEY(3, 3, KEY_DOT),
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KEY(3, 4, KEY_L),
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KEY(3, 5, KEY_O),
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KEY(3, 6, KEY_LEFTALT),
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KEY(3, 7, KEY_ENTER),
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KEY(3, 8, KEY_BACKSPACE),
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KEY(3, 9, KEY_P),
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KEY(3, 10, KEY_B),
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KEY(3, 11, KEY_FN),
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};
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const struct matrix_keymap_data palmtc_keymap_data = {
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.keymap = palmtc_matrix_keys,
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.keymap_size = ARRAY_SIZE(palmtc_matrix_keys),
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};
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static const unsigned int palmtc_keypad_row_gpios[] = {
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0, 9, 10, 11
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};
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static const unsigned int palmtc_keypad_col_gpios[] = {
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18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
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};
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static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
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.keymap_data = &palmtc_keymap_data,
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.row_gpios = palmtc_keypad_row_gpios,
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.num_row_gpios = ARRAY_SIZE(palmtc_keypad_row_gpios),
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.col_gpios = palmtc_keypad_col_gpios,
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.num_col_gpios = ARRAY_SIZE(palmtc_keypad_col_gpios),
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.active_low = 1,
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.debounce_ms = 20,
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.col_scan_delay_us = 5,
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};
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static struct platform_device palmtc_keyboard = {
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.name = "matrix-keypad",
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.id = -1,
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.dev = {
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.platform_data = &palmtc_keypad_platform_data,
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},
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};
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static void __init palmtc_mkp_init(void)
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{
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platform_device_register(&palmtc_keyboard);
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}
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#else
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static inline void palmtc_mkp_init(void) {}
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#endif
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/******************************************************************************
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* UDC
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******************************************************************************/
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#if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
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static struct gpiod_lookup_table palmtc_udc_gpiod_table = {
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.dev_id = "gpio-vbus",
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.table = {
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_DETECT_N,
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"vbus", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_POWER,
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"pullup", GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct platform_device palmtc_gpio_vbus = {
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.name = "gpio-vbus",
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.id = -1,
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};
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static void __init palmtc_udc_init(void)
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{
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gpiod_add_lookup_table(&palmtc_udc_gpiod_table);
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platform_device_register(&palmtc_gpio_vbus);
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};
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#else
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static inline void palmtc_udc_init(void) {}
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#endif
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/******************************************************************************
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* Touchscreen / Battery / GPIO-extender
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******************************************************************************/
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#if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
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defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
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static struct platform_device palmtc_ucb1400_device = {
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.name = "ucb1400_core",
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.id = -1,
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};
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static void __init palmtc_ts_init(void)
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{
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pxa_set_ac97_info(NULL);
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platform_device_register(&palmtc_ucb1400_device);
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}
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#else
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static inline void palmtc_ts_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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struct gpio_led palmtc_gpio_leds[] = {
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{
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.name = "palmtc:green:user",
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.default_trigger = "none",
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.gpio = GPIO_NR_PALMTC_LED_POWER,
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.active_low = 1,
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}, {
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.name = "palmtc:vibra:vibra",
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.default_trigger = "none",
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.gpio = GPIO_NR_PALMTC_VIBRA_POWER,
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.active_low = 1,
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}
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};
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static struct gpio_led_platform_data palmtc_gpio_led_info = {
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.leds = palmtc_gpio_leds,
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.num_leds = ARRAY_SIZE(palmtc_gpio_leds),
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};
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static struct platform_device palmtc_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 = &palmtc_gpio_led_info,
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}
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};
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static void __init palmtc_leds_init(void)
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{
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platform_device_register(&palmtc_leds);
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}
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#else
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static inline void palmtc_leds_init(void) {}
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#endif
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/******************************************************************************
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* NOR Flash
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******************************************************************************/
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#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
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static struct resource palmtc_flash_resource = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_16M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct mtd_partition palmtc_flash_parts[] = {
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{
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.name = "U-Boot Bootloader",
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.offset = 0x0,
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.size = 0x40000,
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},
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{
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.name = "Linux Kernel",
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.offset = 0x40000,
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.size = 0x2c0000,
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},
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{
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.name = "Filesystem",
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.offset = 0x300000,
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.size = 0xcc0000,
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},
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{
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.name = "U-Boot Environment",
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.offset = 0xfc0000,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data palmtc_flash_data = {
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.width = 4,
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.parts = palmtc_flash_parts,
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.nr_parts = ARRAY_SIZE(palmtc_flash_parts),
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};
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static struct platform_device palmtc_flash = {
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.name = "physmap-flash",
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.id = -1,
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.resource = &palmtc_flash_resource,
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.num_resources = 1,
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.dev = {
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.platform_data = &palmtc_flash_data,
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},
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};
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static void __init palmtc_nor_init(void)
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{
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platform_device_register(&palmtc_flash);
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}
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#else
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static inline void palmtc_nor_init(void) {}
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#endif
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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static struct pxafb_mode_info palmtc_lcd_modes[] = {
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{
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.pixclock = 115384,
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.xres = 320,
|
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.yres = 320,
|
|
.bpp = 16,
|
|
|
|
.left_margin = 27,
|
|
.right_margin = 7,
|
|
.upper_margin = 7,
|
|
.lower_margin = 8,
|
|
|
|
.hsync_len = 6,
|
|
.vsync_len = 1,
|
|
},
|
|
};
|
|
|
|
static struct pxafb_mach_info palmtc_lcd_screen = {
|
|
.modes = palmtc_lcd_modes,
|
|
.num_modes = ARRAY_SIZE(palmtc_lcd_modes),
|
|
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
|
|
};
|
|
|
|
static void __init palmtc_lcd_init(void)
|
|
{
|
|
pxa_set_fb_info(NULL, &palmtc_lcd_screen);
|
|
}
|
|
#else
|
|
static inline void palmtc_lcd_init(void) {}
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
* Machine init
|
|
******************************************************************************/
|
|
static void __init palmtc_init(void)
|
|
{
|
|
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
|
|
|
|
pxa_set_ffuart_info(NULL);
|
|
pxa_set_btuart_info(NULL);
|
|
pxa_set_stuart_info(NULL);
|
|
pxa_set_hwuart_info(NULL);
|
|
|
|
palmtc_mmc_init();
|
|
palmtc_keys_init();
|
|
palmtc_pwm_init();
|
|
palmtc_irda_init();
|
|
palmtc_mkp_init();
|
|
palmtc_udc_init();
|
|
palmtc_ts_init();
|
|
palmtc_nor_init();
|
|
palmtc_lcd_init();
|
|
palmtc_leds_init();
|
|
};
|
|
|
|
MACHINE_START(PALMTC, "Palm Tungsten|C")
|
|
.atag_offset = 0x100,
|
|
.map_io = pxa25x_map_io,
|
|
.nr_irqs = PXA_NR_IRQS,
|
|
.init_irq = pxa25x_init_irq,
|
|
.handle_irq = pxa25x_handle_irq,
|
|
.init_time = pxa_timer_init,
|
|
.init_machine = palmtc_init,
|
|
.restart = pxa_restart,
|
|
MACHINE_END
|