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android_kernel_xiaomi_sm8350/arch/arm/mach-pxa/spitz.c
Richard Purdie 2c0f5fb08e [PATCH] backlight: corgi_bl: Generalise to support other Sharp SL hardware 
Generalise the Corgi backlight driver by moving the default intensity and
limit mask settings into the platform specific data structure.  This enables
the driver to support other Zaurus hardware, specifically the SL-6000x (Tosa)
model.

Also change the spinlock to a mutex (the spinlock is overkill).

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:19:00 -08:00

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/*
* Support for Sharp SL-Cxx00 Series of PDAs
* Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
*
* Copyright (c) 2005 Richard Purdie
*
* Based on Sharp's 2.4 kernel patches/lubbock.c
*
* 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.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/ohci.h>
#include <asm/arch/udc.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/akita.h>
#include <asm/arch/spitz.h>
#include <asm/arch/sharpsl.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>
#include "generic.h"
#include "sharpsl.h"
/*
* Spitz SCOOP Device #1
*/
static struct resource spitz_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop_setup = {
.io_dir = SPITZ_SCP_IO_DIR,
.io_out = SPITZ_SCP_IO_OUT,
.suspend_clr = SPITZ_SCP_SUS_CLR,
.suspend_set = SPITZ_SCP_SUS_SET,
};
struct platform_device spitzscoop_device = {
.name = "sharp-scoop",
.id = 0,
.dev = {
.platform_data = &spitz_scoop_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop_resources),
.resource = spitz_scoop_resources,
};
/*
* Spitz SCOOP Device #2
*/
static struct resource spitz_scoop2_resources[] = {
[0] = {
.start = 0x08800040,
.end = 0x08800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop2_setup = {
.io_dir = SPITZ_SCP2_IO_DIR,
.io_out = SPITZ_SCP2_IO_OUT,
.suspend_clr = SPITZ_SCP2_SUS_CLR,
.suspend_set = SPITZ_SCP2_SUS_SET,
};
struct platform_device spitzscoop2_device = {
.name = "sharp-scoop",
.id = 1,
.dev = {
.platform_data = &spitz_scoop2_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop2_resources),
.resource = spitz_scoop2_resources,
};
#define SPITZ_PWR_SD 0x01
#define SPITZ_PWR_CF 0x02
/* Power control is shared with between one of the CF slots and SD */
static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
{
unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
if (new_cpr & 0x0007) {
set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
if (!(cpr & 0x0002) && !(cpr & 0x0004))
mdelay(5);
if (device == SPITZ_PWR_CF)
cpr |= 0x0002;
if (device == SPITZ_PWR_SD)
cpr |= 0x0004;
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
} else {
if (device == SPITZ_PWR_CF)
cpr &= ~0x0002;
if (device == SPITZ_PWR_SD)
cpr &= ~0x0004;
if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
mdelay(1);
reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
} else {
write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
}
}
}
static void spitz_pcmcia_init(void)
{
/* Setup default state of GPIO outputs
before we enable them as outputs. */
GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
pxa_gpio_mode(GPIO48_nPOE_MD);
pxa_gpio_mode(GPIO49_nPWE_MD);
pxa_gpio_mode(GPIO50_nPIOR_MD);
pxa_gpio_mode(GPIO51_nPIOW_MD);
pxa_gpio_mode(GPIO55_nPREG_MD);
pxa_gpio_mode(GPIO56_nPWAIT_MD);
pxa_gpio_mode(GPIO57_nIOIS16_MD);
pxa_gpio_mode(GPIO85_nPCE_1_MD);
pxa_gpio_mode(GPIO54_nPCE_2_MD);
pxa_gpio_mode(GPIO104_pSKTSEL_MD);
}
static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
{
/* Only need to override behaviour for slot 0 */
if (nr == 0)
spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
{
.dev = &spitzscoop_device.dev,
.irq = SPITZ_IRQ_GPIO_CF_IRQ,
.cd_irq = SPITZ_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},{
.dev = &spitzscoop2_device.dev,
.irq = SPITZ_IRQ_GPIO_CF2_IRQ,
.cd_irq = -1,
},
};
static struct scoop_pcmcia_config spitz_pcmcia_config = {
.devs = &spitz_pcmcia_scoop[0],
.num_devs = 2,
.pcmcia_init = spitz_pcmcia_init,
.power_ctrl = spitz_pcmcia_pwr,
};
EXPORT_SYMBOL(spitzscoop_device);
EXPORT_SYMBOL(spitzscoop2_device);
/*
* Spitz SSP Device
*
* Set the parent as the scoop device because a lot of SSP devices
* also use scoop functions and this makes the power up/down order
* work correctly.
*/
struct platform_device spitzssp_device = {
.name = "corgi-ssp",
.dev = {
.parent = &spitzscoop_device.dev,
},
.id = -1,
};
struct corgissp_machinfo spitz_ssp_machinfo = {
.port = 2,
.cs_lcdcon = SPITZ_GPIO_LCDCON_CS,
.cs_ads7846 = SPITZ_GPIO_ADS7846_CS,
.cs_max1111 = SPITZ_GPIO_MAX1111_CS,
.clk_lcdcon = 520,
.clk_ads7846 = 14,
.clk_max1111 = 56,
};
/*
* Spitz Backlight Device
*/
static struct corgibl_machinfo spitz_bl_machinfo = {
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.max_intensity = 0x2f,
};
static struct platform_device spitzbl_device = {
.name = "corgi-bl",
.dev = {
.platform_data = &spitz_bl_machinfo,
},
.id = -1,
};
/*
* Spitz Keyboard Device
*/
static struct platform_device spitzkbd_device = {
.name = "spitz-keyboard",
.id = -1,
};
/*
* Spitz LEDs
*/
static struct platform_device spitzled_device = {
.name = "spitz-led",
.id = -1,
};
/*
* Spitz Touch Screen Device
*/
static struct resource spitzts_resources[] = {
[0] = {
.start = SPITZ_IRQ_GPIO_TP_INT,
.end = SPITZ_IRQ_GPIO_TP_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct corgits_machinfo spitz_ts_machinfo = {
.get_hsync_len = spitz_get_hsync_len,
.put_hsync = spitz_put_hsync,
.wait_hsync = spitz_wait_hsync,
};
static struct platform_device spitzts_device = {
.name = "corgi-ts",
.dev = {
.parent = &spitzssp_device.dev,
.platform_data = &spitz_ts_machinfo,
},
.id = -1,
.num_resources = ARRAY_SIZE(spitzts_resources),
.resource = spitzts_resources,
};
/*
* 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 struct pxamci_platform_data spitz_mci_platform_data;
static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
{
int err;
/* setup GPIO for PXA27x MMC controller */
pxa_gpio_mode(GPIO32_MMCCLK_MD);
pxa_gpio_mode(GPIO112_MMCCMD_MD);
pxa_gpio_mode(GPIO92_MMCDAT0_MD);
pxa_gpio_mode(GPIO109_MMCDAT1_MD);
pxa_gpio_mode(GPIO110_MMCDAT2_MD);
pxa_gpio_mode(GPIO111_MMCDAT3_MD);
pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
"MMC card detect", data);
if (err) {
printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
return -1;
}
return 0;
}
static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if (( 1 << vdd) & p_d->ocr_mask)
spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
else
spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
}
static int spitz_mci_get_ro(struct device *dev)
{
return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
}
static void spitz_mci_exit(struct device *dev, void *data)
{
free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
}
static struct pxamci_platform_data spitz_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = spitz_mci_init,
.get_ro = spitz_mci_get_ro,
.setpower = spitz_mci_setpower,
.exit = spitz_mci_exit,
};
/*
* USB Host (OHCI)
*/
static int spitz_ohci_init(struct device *dev)
{
/* Only Port 2 is connected */
pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
/* Setup USB Port 2 Output Control Register */
UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
UHCHR = (UHCHR) &
~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
UHCRHDA |= UHCRHDA_NOCP;
return 0;
}
static struct pxaohci_platform_data spitz_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.init = spitz_ohci_init,
};
/*
* Irda
*/
static void spitz_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF)
set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
else
reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
}
#ifdef CONFIG_MACH_AKITA
static void akita_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF)
akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
else
akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
}
#endif
static struct pxaficp_platform_data spitz_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = spitz_irda_transceiver_mode,
};
/*
* Spitz PXA Framebuffer
*/
static struct pxafb_mach_info spitz_pxafb_info __initdata = {
.pixclock = 19231,
.xres = 480,
.yres = 640,
.bpp = 16,
.hsync_len = 40,
.left_margin = 46,
.right_margin = 125,
.vsync_len = 3,
.upper_margin = 1,
.lower_margin = 0,
.sync = 0,
.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
.lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH,
.pxafb_lcd_power = spitz_lcd_power,
};
static struct platform_device *devices[] __initdata = {
&spitzscoop_device,
&spitzssp_device,
&spitzkbd_device,
&spitzts_device,
&spitzbl_device,
&spitzled_device,
};
static void __init common_init(void)
{
PMCR = 0x00;
/* setup sleep mode values */
PWER = 0x00000002;
PFER = 0x00000000;
PRER = 0x00000002;
PGSR0 = 0x0158C000;
PGSR1 = 0x00FF0080;
PGSR2 = 0x0001C004;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
PCFR |= PCFR_OPDE;
corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_mci_info(&spitz_mci_platform_data);
pxa_set_ohci_info(&spitz_ohci_platform_data);
pxa_set_ficp_info(&spitz_ficp_platform_data);
set_pxa_fb_parent(&spitzssp_device.dev);
set_pxa_fb_info(&spitz_pxafb_info);
}
static void __init spitz_init(void)
{
platform_scoop_config = &spitz_pcmcia_config;
spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
common_init();
platform_device_register(&spitzscoop2_device);
}
#ifdef CONFIG_MACH_AKITA
/*
* Akita IO Expander
*/
struct platform_device akitaioexp_device = {
.name = "akita-ioexp",
.id = -1,
};
EXPORT_SYMBOL_GPL(akitaioexp_device);
static void __init akita_init(void)
{
spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
/* We just pretend the second element of the array doesn't exist */
spitz_pcmcia_config.num_devs = 1;
platform_scoop_config = &spitz_pcmcia_config;
spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
platform_device_register(&akitaioexp_device);
spitzscoop_device.dev.parent = &akitaioexp_device.dev;
common_init();
}
#endif
static void __init fixup_spitz(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
sharpsl_save_param();
mi->nr_banks = 1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
mi->bank[0].size = (64*1024*1024);
}
#ifdef CONFIG_MACH_SPITZ
MACHINE_START(SPITZ, "SHARP Spitz")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa_init_irq,
.init_machine = spitz_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_BORZOI
MACHINE_START(BORZOI, "SHARP Borzoi")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa_init_irq,
.init_machine = spitz_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_AKITA
MACHINE_START(AKITA, "SHARP Akita")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_spitz,
.map_io = pxa_map_io,
.init_irq = pxa_init_irq,
.init_machine = akita_init,
.timer = &pxa_timer,
MACHINE_END
#endif
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