android_kernel_xiaomi_sm8350/drivers/pcmcia/pxa2xx_lubbock.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

269 lines
5.9 KiB
C

/*
* linux/drivers/pcmcia/pxa2xx_lubbock.c
*
* Author: George Davis
* Created: Jan 10, 2002
* Copyright: MontaVista Software Inc.
*
* 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.
*
* Originally based upon linux/drivers/pcmcia/sa1100_neponset.c
*
* Lubbock PCMCIA specific routines.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <asm/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/mach-types.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
#include "sa1111_generic.h"
static int
lubbock_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
/*
* 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(GPIO52_nPCE_1) |
GPIO_bit(GPIO53_nPCE_2);
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(GPIO52_nPCE_1_MD);
pxa_gpio_mode(GPIO53_nPCE_2_MD);
pxa_gpio_mode(GPIO54_pSKTSEL_MD);
pxa_gpio_mode(GPIO55_nPREG_MD);
pxa_gpio_mode(GPIO56_nPWAIT_MD);
pxa_gpio_mode(GPIO57_nIOIS16_MD);
return sa1111_pcmcia_hw_init(skt);
}
static int
lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned int pa_dwr_mask, pa_dwr_set, misc_mask, misc_set;
int ret = 0;
pa_dwr_mask = pa_dwr_set = misc_mask = misc_set = 0;
/* Lubbock uses the Maxim MAX1602, with the following connections:
*
* Socket 0 (PCMCIA):
* MAX1602 Lubbock Register
* Pin Signal
* ----- ------- ----------------------
* A0VPP S0_PWR0 SA-1111 GPIO A<0>
* A1VPP S0_PWR1 SA-1111 GPIO A<1>
* A0VCC S0_PWR2 SA-1111 GPIO A<2>
* A1VCC S0_PWR3 SA-1111 GPIO A<3>
* VX VCC
* VY +3.3V
* 12IN +12V
* CODE +3.3V Cirrus Code, CODE = High (VY)
*
* Socket 1 (CF):
* MAX1602 Lubbock Register
* Pin Signal
* ----- ------- ----------------------
* A0VPP GND VPP is not connected
* A1VPP GND VPP is not connected
* A0VCC S1_PWR0 MISC_WR<14>
* A1VCC S1_PWR1 MISC_WR<15>
* VX VCC
* VY +3.3V
* 12IN GND VPP is not connected
* CODE +3.3V Cirrus Code, CODE = High (VY)
*
*/
again:
switch (skt->nr) {
case 0:
pa_dwr_mask = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
switch (state->Vcc) {
case 0: /* Hi-Z */
break;
case 33: /* VY */
pa_dwr_set |= GPIO_A3;
break;
case 50: /* VX */
pa_dwr_set |= GPIO_A2;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__FUNCTION__, state->Vcc);
ret = -1;
}
switch (state->Vpp) {
case 0: /* Hi-Z */
break;
case 120: /* 12IN */
pa_dwr_set |= GPIO_A1;
break;
default: /* VCC */
if (state->Vpp == state->Vcc)
pa_dwr_set |= GPIO_A0;
else {
printk(KERN_ERR "%s(): unrecognized Vpp %u\n",
__FUNCTION__, state->Vpp);
ret = -1;
break;
}
}
break;
case 1:
misc_mask = (1 << 15) | (1 << 14);
switch (state->Vcc) {
case 0: /* Hi-Z */
break;
case 33: /* VY */
misc_set |= 1 << 15;
break;
case 50: /* VX */
misc_set |= 1 << 14;
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__FUNCTION__, state->Vcc);
ret = -1;
break;
}
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): CF slot cannot support Vpp %u\n",
__FUNCTION__, state->Vpp);
ret = -1;
break;
}
break;
default:
ret = -1;
}
if (ret == 0)
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
lubbock_set_misc_wr(misc_mask, misc_set);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
}
#if 1
if (ret == 0 && state->Vcc == 33) {
struct pcmcia_state new_state;
/*
* HACK ALERT:
* We can't sense the voltage properly on Lubbock before
* actually applying some power to the socket (catch 22).
* Resense the socket Voltage Sense pins after applying
* socket power.
*
* Note: It takes about 2.5ms for the MAX1602 VCC output
* to rise.
*/
mdelay(3);
sa1111_pcmcia_socket_state(skt, &new_state);
if (!new_state.vs_3v && !new_state.vs_Xv) {
/*
* Switch to 5V, Configure socket with 5V voltage
*/
lubbock_set_misc_wr(misc_mask, 0);
sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, 0);
/*
* It takes about 100ms to turn off Vcc.
*/
mdelay(100);
/*
* We need to hack around the const qualifier as
* well to keep this ugly workaround localized and
* not force it to the rest of the code. Barf bags
* avaliable in the seat pocket in front of you!
*/
((socket_state_t *)state)->Vcc = 50;
((socket_state_t *)state)->Vpp = 50;
goto again;
}
}
#endif
return ret;
}
static struct pcmcia_low_level lubbock_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = lubbock_pcmcia_hw_init,
.hw_shutdown = sa1111_pcmcia_hw_shutdown,
.socket_state = sa1111_pcmcia_socket_state,
.configure_socket = lubbock_pcmcia_configure_socket,
.socket_init = sa1111_pcmcia_socket_init,
.socket_suspend = sa1111_pcmcia_socket_suspend,
.first = 0,
.nr = 2,
};
#include "pxa2xx_base.h"
int __init pcmcia_lubbock_init(struct sa1111_dev *sadev)
{
int ret = -ENODEV;
if (machine_is_lubbock()) {
/*
* Set GPIO_A<3:0> to be outputs for the MAX1600,
* and switch to standby mode.
*/
sa1111_set_io_dir(sadev, GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0, 0);
sa1111_set_io(sadev, GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
sa1111_set_sleep_io(sadev, GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
/* Set CF Socket 1 power to standby mode. */
lubbock_set_misc_wr((1 << 15) | (1 << 14), 0);
sadev->dev.platform_data = &lubbock_pcmcia_ops;
ret = __pxa2xx_drv_pcmcia_probe(&sadev->dev);
}
return ret;
}
MODULE_LICENSE("GPL");