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alistair23-linux/arch/arm/mach-pxa/poodle.c
Dmitry Eremin-Solenikov 9bc78f32c2 ARM: pxa: add regulator_has_full_constraints to poodle board file 
Add regulator_has_full_constraints() call to poodle board file to let
regulator core know that we do not have any additional regulators left.
This lets it substitute unprovided regulators with dummy ones.

This fixes the following warnings that can be seen on poodle if
regulators are enabled:

ads7846 spi1.0: unable to get regulator: -517
spi spi1.0: Driver ads7846 requests probe deferral
wm8731 0-001b: Failed to get supply 'AVDD': -517
wm8731 0-001b: Failed to request supplies: -517
wm8731 0-001b: ASoC: failed to probe component -517

Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2014-12-26 18:03:20 +01:00

478 lines
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/*
* linux/arch/arm/mach-pxa/poodle.c
*
* Support for the SHARP Poodle Board.
*
* Based on:
* linux/arch/arm/mach-pxa/lubbock.c Author: Nicolas Pitre
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Change Log
* 12-Dec-2002 Sharp Corporation for Poodle
* John Lenz <lenz@cs.wisc.edu> updates to 2.6
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/regulator/machine.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mtd/sharpsl.h>
#include <linux/memblock.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/pxa25x.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <mach/udc.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <mach/poodle.h>
#include <linux/platform_data/video-pxafb.h>
#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
#include <asm/mach/sharpsl_param.h>
#include "generic.h"
#include "devices.h"
static unsigned long poodle_pin_config[] __initdata = {
/* I/O */
GPIO79_nCS_3,
GPIO80_nCS_4,
GPIO18_RDY,
/* Clock */
GPIO12_32KHz,
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
GPIO24_GPIO, /* POODLE_GPIO_TP_CS - SFRM as chip select */
/* I2S */
GPIO28_I2S_BITCLK_OUT,
GPIO29_I2S_SDATA_IN,
GPIO30_I2S_SDATA_OUT,
GPIO31_I2S_SYNC,
GPIO32_I2S_SYSCLK,
/* Infra-Red */
GPIO47_FICP_TXD,
GPIO46_FICP_RXD,
/* FFUART */
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
GPIO39_FFUART_TXD,
GPIO37_FFUART_DSR,
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
/* GPIO */
GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
};
static struct resource poodle_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config poodle_scoop_setup = {
.io_dir = POODLE_SCOOP_IO_DIR,
.io_out = POODLE_SCOOP_IO_OUT,
.gpio_base = POODLE_SCOOP_GPIO_BASE,
};
struct platform_device poodle_scoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &poodle_scoop_setup,
},
.num_resources = ARRAY_SIZE(poodle_scoop_resources),
.resource = poodle_scoop_resources,
};
static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
{
.dev = &poodle_scoop_device.dev,
.irq = POODLE_IRQ_GPIO_CF_IRQ,
.cd_irq = POODLE_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config poodle_pcmcia_config = {
.devs = &poodle_pcmcia_scoop[0],
.num_devs = 1,
};
EXPORT_SYMBOL(poodle_scoop_device);
static struct platform_device poodle_audio_device = {
.name = "poodle-audio",
.id = -1,
};
/* LoCoMo device */
static struct resource locomo_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x10001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_GPIO_TO_IRQ(10),
.end = PXA_GPIO_TO_IRQ(10),
.flags = IORESOURCE_IRQ,
},
};
static struct locomo_platform_data locomo_info = {
.irq_base = IRQ_BOARD_START,
};
struct platform_device poodle_locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
.resource = locomo_resources,
.dev = {
.platform_data = &locomo_info,
},
};
EXPORT_SYMBOL(poodle_locomo_device);
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master poodle_spi_info = {
.num_chipselect = 1,
};
static struct ads7846_platform_data poodle_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = POODLE_GPIO_TP_INT,
};
static struct pxa2xx_spi_chip poodle_ads7846_chip = {
.gpio_cs = POODLE_GPIO_TP_CS,
};
static struct spi_board_info poodle_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 10000,
.bus_num = 1,
.platform_data = &poodle_ads7846_info,
.controller_data= &poodle_ads7846_chip,
.irq = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
},
};
static void __init poodle_init_spi(void)
{
pxa2xx_set_spi_info(1, &poodle_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
}
#else
static inline void poodle_init_spi(void) {}
#endif
/*
* MMC/SD Device
*
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
{
int err;
err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
if (err)
goto err_free_2;
err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
if (err)
goto err_free_3;
gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
return 0;
err_free_3:
gpio_free(POODLE_GPIO_SD_PWR);
err_free_2:
return err;
}
static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask) {
gpio_set_value(POODLE_GPIO_SD_PWR, 1);
mdelay(2);
gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
} else {
gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
gpio_set_value(POODLE_GPIO_SD_PWR, 0);
}
return 0;
}
static void poodle_mci_exit(struct device *dev, void *data)
{
gpio_free(POODLE_GPIO_SD_PWR1);
gpio_free(POODLE_GPIO_SD_PWR);
}
static struct pxamci_platform_data poodle_mci_platform_data = {
.detect_delay_ms = 250,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = poodle_mci_init,
.setpower = poodle_mci_setpower,
.exit = poodle_mci_exit,
.gpio_card_detect = POODLE_GPIO_nSD_DETECT,
.gpio_card_ro = POODLE_GPIO_nSD_WP,
.gpio_power = -1,
};
/*
* Irda
*/
static struct pxaficp_platform_data poodle_ficp_platform_data = {
.gpio_pwdown = POODLE_GPIO_IR_ON,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
/* no connect GPIO; poodle can't tell connection status */
.gpio_pullup = POODLE_GPIO_USB_PULLUP,
};
/* PXAFB device */
static struct pxafb_mode_info poodle_fb_mode = {
.pixclock = 144700,
.xres = 320,
.yres = 240,
.bpp = 16,
.hsync_len = 7,
.left_margin = 11,
.right_margin = 30,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};
static struct pxafb_mach_info poodle_fb_info = {
.modes = &poodle_fb_mode,
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP,
};
static struct mtd_partition sharpsl_nand_partitions[] = {
{
.name = "System Area",
.offset = 0,
.size = 7 * 1024 * 1024,
},
{
.name = "Root Filesystem",
.offset = 7 * 1024 * 1024,
.size = 22 * 1024 * 1024,
},
{
.name = "Home Filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
static struct nand_bbt_descr sharpsl_bbt = {
.options = 0,
.offs = 4,
.len = 2,
.pattern = scan_ff_pattern
};
static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
.badblock_pattern = &sharpsl_bbt,
.partitions = sharpsl_nand_partitions,
.nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
};
static struct resource sharpsl_nand_resources[] = {
{
.start = 0x0C000000,
.end = 0x0C000FFF,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_nand_device = {
.name = "sharpsl-nand",
.id = -1,
.resource = sharpsl_nand_resources,
.num_resources = ARRAY_SIZE(sharpsl_nand_resources),
.dev.platform_data = &sharpsl_nand_platform_data,
};
static struct mtd_partition sharpsl_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
.offset = 0x00120000,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data sharpsl_rom_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
.parts = sharpsl_rom_parts,
};
static struct resource sharpsl_rom_resources[] = {
{
.start = 0x00000000,
.end = 0x007fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_rom_device = {
.name = "physmap-flash",
.id = -1,
.resource = sharpsl_rom_resources,
.num_resources = ARRAY_SIZE(sharpsl_rom_resources),
.dev.platform_data = &sharpsl_rom_data,
};
static struct platform_device *devices[] __initdata = {
&poodle_locomo_device,
&poodle_scoop_device,
&poodle_audio_device,
&sharpsl_nand_device,
&sharpsl_rom_device,
};
static struct i2c_board_info __initdata poodle_i2c_devices[] = {
{ I2C_BOARD_INFO("wm8731", 0x1b) },
};
static void poodle_poweroff(void)
{
pxa_restart(REBOOT_HARD, NULL);
}
static void __init poodle_init(void)
{
int ret = 0;
pm_power_off = poodle_poweroff;
PCFR |= PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
platform_scoop_config = &poodle_pcmcia_config;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret)
pr_warn("poodle: Unable to register LoCoMo device\n");
pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&poodle_mci_platform_data);
pxa_set_ficp_info(&poodle_ficp_platform_data);
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
poodle_init_spi();
regulator_has_full_constraints();
}
static void __init fixup_poodle(struct tag *tags, char **cmdline)
{
sharpsl_save_param();
memblock_add(0xa0000000, SZ_32M);
}
MACHINE_START(POODLE, "SHARP Poodle")
.fixup = fixup_poodle,
.map_io = pxa25x_map_io,
.nr_irqs = POODLE_NR_IRQS, /* 4 for LoCoMo */
.init_irq = pxa25x_init_irq,
.handle_irq = pxa25x_handle_irq,
.init_time = pxa_timer_init,
.init_machine = poodle_init,
.restart = pxa_restart,
MACHINE_END
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