* [PATCH 1/3] ftdi_sio: Add more identifiers
@ 2012-01-26 17:41 Alan Cox
2012-01-26 17:44 ` [PATCH 2/3] serial: Kill off NO_IRQ Alan Cox
2012-01-26 17:45 ` [PATCH 3/3] serial: Kill off Moorestown code Alan Cox
0 siblings, 2 replies; 3+ messages in thread
From: Alan Cox @ 2012-01-26 17:41 UTC (permalink / raw)
To: greg, linux-serial
From: Alan Cox <alan@linux.intel.com>
0x04d8, 0x000a: Hornby Elite
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/usb/serial/ftdi_sio.c | 1 +
drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 104aff5..ad654f8 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -797,6 +797,7 @@ static struct usb_device_id id_table_combined [] = {
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(HORNBY_VID, HORNBY_ELITE_PID) },
{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 09237ff..f994503 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -532,6 +532,12 @@
#define ADI_GNICEPLUS_PID 0xF001
/*
+ * Hornby Elite
+ */
+#define HORNBY_VID 0x04D8
+#define HORNBY_ELITE_PID 0x000A
+
+/*
* RATOC REX-USB60F
*/
#define RATOC_VENDOR_ID 0x0584
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 2/3] serial: Kill off NO_IRQ
2012-01-26 17:41 [PATCH 1/3] ftdi_sio: Add more identifiers Alan Cox
@ 2012-01-26 17:44 ` Alan Cox
2012-01-26 17:45 ` [PATCH 3/3] serial: Kill off Moorestown code Alan Cox
1 sibling, 0 replies; 3+ messages in thread
From: Alan Cox @ 2012-01-26 17:44 UTC (permalink / raw)
To: greg, linux-serial
From: Alan Cox <alan@linux.intel.com>
We transform the offenders into a test of irq <= 0 which will be ok while
the ARM people get their platform sorted. Once that is done (or in a while
if they don't do it anyway) then we will change them all to !irq checks.
For arch specific drivers that are already using NO_IRQ = 0 we just test
against zero so we don't need to re-review them later.
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/tty/hvc/hvc_beat.c | 2 +-
drivers/tty/hvc/hvc_rtas.c | 2 +-
drivers/tty/hvc/hvc_udbg.c | 2 +-
drivers/tty/hvc/hvc_xen.c | 2 +-
drivers/tty/hvc/hvcs.c | 4 ++--
drivers/tty/hvc/hvsi.c | 2 +-
drivers/tty/serial/21285.c | 4 ++--
drivers/tty/serial/8250/8250.c | 21 +++++++--------------
drivers/tty/serial/8250/m32r_sio.c | 11 ++---------
drivers/tty/serial/mpc52xx_uart.c | 4 ++--
drivers/tty/serial/mux.c | 2 +-
drivers/tty/serial/pmac_zilog.c | 2 +-
drivers/tty/serial/sunzilog.c | 10 +++++-----
drivers/tty/serial/ucc_uart.c | 2 +-
drivers/tty/serial/vr41xx_siu.c | 4 ++--
15 files changed, 30 insertions(+), 44 deletions(-)
diff --git a/drivers/tty/hvc/hvc_beat.c b/drivers/tty/hvc/hvc_beat.c
index 5fe4631..1560d23 100644
--- a/drivers/tty/hvc/hvc_beat.c
+++ b/drivers/tty/hvc/hvc_beat.c
@@ -113,7 +113,7 @@ static int __init hvc_beat_init(void)
if (!firmware_has_feature(FW_FEATURE_BEAT))
return -ENODEV;
- hp = hvc_alloc(0, NO_IRQ, &hvc_beat_get_put_ops, 16);
+ hp = hvc_alloc(0, 0, &hvc_beat_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
hvc_beat_dev = hp;
diff --git a/drivers/tty/hvc/hvc_rtas.c b/drivers/tty/hvc/hvc_rtas.c
index 61c4a61..0069bb8 100644
--- a/drivers/tty/hvc/hvc_rtas.c
+++ b/drivers/tty/hvc/hvc_rtas.c
@@ -94,7 +94,7 @@ static int __init hvc_rtas_init(void)
/* Allocate an hvc_struct for the console device we instantiated
* earlier. Save off hp so that we can return it on exit */
- hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16);
+ hp = hvc_alloc(hvc_rtas_cookie, 0, &hvc_rtas_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
diff --git a/drivers/tty/hvc/hvc_udbg.c b/drivers/tty/hvc/hvc_udbg.c
index b0957e6..4c9b13e 100644
--- a/drivers/tty/hvc/hvc_udbg.c
+++ b/drivers/tty/hvc/hvc_udbg.c
@@ -69,7 +69,7 @@ static int __init hvc_udbg_init(void)
BUG_ON(hvc_udbg_dev);
- hp = hvc_alloc(0, NO_IRQ, &hvc_udbg_ops, 16);
+ hp = hvc_alloc(0, 0, &hvc_udbg_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 52fdf60..a1b0a75 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -176,7 +176,7 @@ static int __init xen_hvc_init(void)
xencons_irq = bind_evtchn_to_irq(xen_start_info->console.domU.evtchn);
}
if (xencons_irq < 0)
- xencons_irq = 0; /* NO_IRQ */
+ xencons_irq = 0;
else
irq_set_noprobe(xencons_irq);
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index b9040be..df7e7a0 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1203,7 +1203,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
{
struct hvcs_struct *hvcsd;
unsigned long flags;
- int irq = NO_IRQ;
+ int irq;
/*
* Is someone trying to close the file associated with this device after
@@ -1264,7 +1264,7 @@ static void hvcs_hangup(struct tty_struct * tty)
struct hvcs_struct *hvcsd = tty->driver_data;
unsigned long flags;
int temp_open_count;
- int irq = NO_IRQ;
+ int irq;
spin_lock_irqsave(&hvcsd->lock, flags);
/* Preserve this so that we know how many kref refs to put */
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index cdfa3e0..1b5f28b 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -1237,7 +1237,7 @@ static int __init hvsi_console_init(void)
hp->state = HVSI_CLOSED;
hp->vtermno = *vtermno;
hp->virq = irq_create_mapping(NULL, irq[0]);
- if (hp->virq == NO_IRQ) {
+ if (hp->virq == 0) {
printk(KERN_ERR "%s: couldn't create irq mapping for 0x%x\n",
__func__, irq[0]);
continue;
diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 1b37626..f899996 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -331,7 +331,7 @@ static int serial21285_verify_port(struct uart_port *port, struct serial_struct
int ret = 0;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_21285)
ret = -EINVAL;
- if (ser->irq != NO_IRQ)
+ if (ser->irq <= 0)
ret = -EINVAL;
if (ser->baud_base != port->uartclk / 16)
ret = -EINVAL;
@@ -360,7 +360,7 @@ static struct uart_ops serial21285_ops = {
static struct uart_port serial21285_port = {
.mapbase = 0x42000160,
.iotype = UPIO_MEM,
- .irq = NO_IRQ,
+ .irq = 0,
.fifosize = 16,
.ops = &serial21285_ops,
.flags = UPF_BOOT_AUTOCONF,
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index 9f50c4e..b0eb961 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -86,13 +86,6 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
-/*
- * We default to IRQ0 for the "no irq" hack. Some
- * machine types want others as well - they're free
- * to redefine this in their header file.
- */
-#define is_real_interrupt(irq) ((irq) != 0)
-
#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
#define CONFIG_SERIAL_DETECT_IRQ 1
#endif
@@ -1750,7 +1743,7 @@ static void serial8250_backup_timeout(unsigned long data)
* Must disable interrupts or else we risk racing with the interrupt
* based handler.
*/
- if (is_real_interrupt(up->port.irq)) {
+ if (up->port.irq) {
ier = serial_in(up, UART_IER);
serial_out(up, UART_IER, 0);
}
@@ -1775,7 +1768,7 @@ static void serial8250_backup_timeout(unsigned long data)
if (!(iir & UART_IIR_NO_INT))
serial8250_tx_chars(up);
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
serial_out(up, UART_IER, ier);
spin_unlock_irqrestore(&up->port.lock, flags);
@@ -2028,7 +2021,7 @@ static int serial8250_startup(struct uart_port *port)
serial_outp(up, UART_LCR, 0);
}
- if (is_real_interrupt(up->port.irq)) {
+ if (up->port.irq) {
unsigned char iir1;
/*
* Test for UARTs that do not reassert THRE when the
@@ -2083,7 +2076,7 @@ static int serial8250_startup(struct uart_port *port)
* hardware interrupt, we use a timer-based system. The original
* driver used to do this with IRQ0.
*/
- if (!is_real_interrupt(up->port.irq)) {
+ if (!up->port.irq) {
up->timer.data = (unsigned long)up;
mod_timer(&up->timer, jiffies + uart_poll_timeout(port));
} else {
@@ -2099,13 +2092,13 @@ static int serial8250_startup(struct uart_port *port)
spin_lock_irqsave(&up->port.lock, flags);
if (up->port.flags & UPF_FOURPORT) {
- if (!is_real_interrupt(up->port.irq))
+ if (!up->port.irq)
up->port.mctrl |= TIOCM_OUT1;
} else
/*
* Most PC uarts need OUT2 raised to enable interrupts.
*/
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
up->port.mctrl |= TIOCM_OUT2;
serial8250_set_mctrl(&up->port, up->port.mctrl);
@@ -2223,7 +2216,7 @@ static void serial8250_shutdown(struct uart_port *port)
del_timer_sync(&up->timer);
up->timer.function = serial8250_timeout;
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
serial_unlink_irq_chain(up);
}
diff --git a/drivers/tty/serial/8250/m32r_sio.c b/drivers/tty/serial/8250/m32r_sio.c
index 94a6792..e465dda 100644
--- a/drivers/tty/serial/8250/m32r_sio.c
+++ b/drivers/tty/serial/8250/m32r_sio.c
@@ -70,13 +70,6 @@
#define PASS_LIMIT 256
-/*
- * We default to IRQ0 for the "no irq" hack. Some
- * machine types want others as well - they're free
- * to redefine this in their header file.
- */
-#define is_real_interrupt(irq) ((irq) != 0)
-
#define BASE_BAUD 115200
/* Standard COM flags */
@@ -640,7 +633,7 @@ static int m32r_sio_startup(struct uart_port *port)
* hardware interrupt, we use a timer-based system. The original
* driver used to do this with IRQ0.
*/
- if (!is_real_interrupt(up->port.irq)) {
+ if (!up->port.irq) {
unsigned int timeout = up->port.timeout;
timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
@@ -687,7 +680,7 @@ static void m32r_sio_shutdown(struct uart_port *port)
sio_init();
- if (!is_real_interrupt(up->port.irq))
+ if (!up->port.irq)
del_timer_sync(&up->timer);
else
serial_unlink_irq_chain(up);
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 1093a88..e9a770d 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -507,7 +507,7 @@ static int __init mpc512x_psc_fifoc_init(void)
psc_fifoc_irq = irq_of_parse_and_map(np, 0);
of_node_put(np);
- if (psc_fifoc_irq == NO_IRQ) {
+ if (psc_fifoc_irq == 0) {
pr_err("%s: Can't get FIFOC irq\n", __func__);
iounmap(psc_fifoc);
return -ENODEV;
@@ -1354,7 +1354,7 @@ static int __devinit mpc52xx_uart_of_probe(struct platform_device *op)
}
psc_ops->get_irq(port, op->dev.of_node);
- if (port->irq == NO_IRQ) {
+ if (port->irq == 0) {
dev_dbg(&op->dev, "Could not get irq\n");
return -EINVAL;
}
diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 06f6aef..c61d950 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -499,7 +499,7 @@ static int __init mux_probe(struct parisc_device *dev)
port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
port->iotype = UPIO_MEM;
port->type = PORT_MUX;
- port->irq = NO_IRQ;
+ port->irq = 0;
port->uartclk = 0;
port->fifosize = MUX_FIFO_SIZE;
port->ops = &mux_pops;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index e9c2dfe4..08ebe90 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1506,7 +1506,7 @@ no_dma:
* fixed up interrupt info, but we use the device-tree directly
* here due to early probing so we need the fixup too.
*/
- if (uap->port.irq == NO_IRQ &&
+ if (uap->port.irq == 0 &&
np->parent && np->parent->parent &&
of_device_is_compatible(np->parent->parent, "gatwick")) {
/* IRQs on gatwick are offset by 64 */
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 8e916e7..5a47d1b 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1397,7 +1397,7 @@ static void __devinit sunzilog_init_hw(struct uart_sunzilog_port *up)
#endif
}
-static int zilog_irq = -1;
+static int zilog_irq;
static int __devinit zs_probe(struct platform_device *op)
{
@@ -1425,7 +1425,7 @@ static int __devinit zs_probe(struct platform_device *op)
rp = sunzilog_chip_regs[inst];
- if (zilog_irq == -1)
+ if (!zilog_irq)
zilog_irq = op->archdata.irqs[0];
up = &sunzilog_port_table[inst * 2];
@@ -1580,7 +1580,7 @@ static int __init sunzilog_init(void)
if (err)
goto out_unregister_uart;
- if (zilog_irq != -1) {
+ if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
err = request_irq(zilog_irq, sunzilog_interrupt, IRQF_SHARED,
"zs", sunzilog_irq_chain);
@@ -1621,7 +1621,7 @@ static void __exit sunzilog_exit(void)
{
platform_driver_unregister(&zs_driver);
- if (zilog_irq != -1) {
+ if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
/* Disable Interrupts */
@@ -1637,7 +1637,7 @@ static void __exit sunzilog_exit(void)
}
free_irq(zilog_irq, sunzilog_irq_chain);
- zilog_irq = -1;
+ zilog_irq = 0;
}
if (sunzilog_reg.nr) {
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 2ebe606..f99b0c9 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -1360,7 +1360,7 @@ static int ucc_uart_probe(struct platform_device *ofdev)
}
qe_port->port.irq = irq_of_parse_and_map(np, 0);
- if (qe_port->port.irq == NO_IRQ) {
+ if (qe_port->port.irq == 0) {
dev_err(&ofdev->dev, "could not map IRQ for UCC%u\n",
qe_port->ucc_num + 1);
ret = -EINVAL;
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 83148e7..cf0d948 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -61,7 +61,7 @@
static struct uart_port siu_uart_ports[SIU_PORTS_MAX] = {
[0 ... SIU_PORTS_MAX-1] = {
.lock = __SPIN_LOCK_UNLOCKED(siu_uart_ports->lock),
- .irq = -1,
+ .irq = 0,
},
};
@@ -171,7 +171,7 @@ static inline unsigned int siu_check_type(struct uart_port *port)
{
if (port->line == 0)
return PORT_VR41XX_SIU;
- if (port->line == 1 && port->irq != -1)
+ if (port->line == 1 && port->irq)
return PORT_VR41XX_DSIU;
return PORT_UNKNOWN;
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 3/3] serial: Kill off Moorestown code
2012-01-26 17:41 [PATCH 1/3] ftdi_sio: Add more identifiers Alan Cox
2012-01-26 17:44 ` [PATCH 2/3] serial: Kill off NO_IRQ Alan Cox
@ 2012-01-26 17:45 ` Alan Cox
1 sibling, 0 replies; 3+ messages in thread
From: Alan Cox @ 2012-01-26 17:45 UTC (permalink / raw)
To: greg, linux-serial
From: Alan Cox <alan@linux.intel.com>
All production devices operate in the Oaktrail configuration with legacy PC
elements present and an ACPI BIOS. Continue stripping out the Moorestown
elements from the tree leaving Medfield.
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/tty/serial/Kconfig | 9 -
drivers/tty/serial/Makefile | 1
drivers/tty/serial/max3107-aava.c | 344 -------------------------------------
3 files changed, 0 insertions(+), 354 deletions(-)
delete mode 100644 drivers/tty/serial/max3107-aava.c
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 0bff238..2de9924 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -264,15 +264,6 @@ config SERIAL_MAX3107
help
MAX3107 chip support
-config SERIAL_MAX3107_AAVA
- tristate "MAX3107 AAVA platform support"
- depends on X86_MRST && SERIAL_MAX3107 && GPIOLIB
- select SERIAL_CORE
- help
- Support for the MAX3107 chip configuration found on the AAVA
- platform. Includes the extra initialisation and GPIO support
- neded for this device.
-
config SERIAL_DZ
bool "DECstation DZ serial driver"
depends on MACH_DECSTATION && 32BIT
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index a6d1ac0..fef32e1 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_SERIAL_BFIN_SPORT) += bfin_sport_uart.o
obj-$(CONFIG_SERIAL_SAMSUNG) += samsung.o
obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
obj-$(CONFIG_SERIAL_MAX3107) += max3107.o
-obj-$(CONFIG_SERIAL_MAX3107_AAVA) += max3107-aava.o
obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
obj-$(CONFIG_SERIAL_MUX) += mux.o
obj-$(CONFIG_SERIAL_68328) += 68328serial.o
diff --git a/drivers/tty/serial/max3107-aava.c b/drivers/tty/serial/max3107-aava.c
deleted file mode 100644
index aae772a..0000000
--- a/drivers/tty/serial/max3107-aava.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * max3107.c - spi uart protocol driver for Maxim 3107
- * Based on max3100.c
- * by Christian Pellegrin <chripell@evolware.org>
- * and max3110.c
- * by Feng Tang <feng.tang@intel.com>
- *
- * Copyright (C) Aavamobile 2009
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-#include <linux/spi/spi.h>
-#include <linux/freezer.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/sfi.h>
-#include <linux/module.h>
-#include <asm/mrst.h>
-#include "max3107.h"
-
-/* GPIO direction to input function */
-static int max3107_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
-{
- struct max3107_port *s = container_of(chip, struct max3107_port, chip);
- u16 buf[1]; /* Buffer for SPI transfer */
-
- if (offset >= MAX3107_GPIO_COUNT) {
- dev_err(&s->spi->dev, "Invalid GPIO\n");
- return -EINVAL;
- }
-
- /* Read current GPIO configuration register */
- buf[0] = MAX3107_GPIOCFG_REG;
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
- dev_err(&s->spi->dev, "SPI transfer GPIO read failed\n");
- return -EIO;
- }
- buf[0] &= MAX3107_SPI_RX_DATA_MASK;
-
- /* Set GPIO to input */
- buf[0] &= ~(0x0001 << offset);
-
- /* Write new GPIO configuration register value */
- buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, NULL, 2)) {
- dev_err(&s->spi->dev, "SPI transfer GPIO write failed\n");
- return -EIO;
- }
- return 0;
-}
-
-/* GPIO direction to output function */
-static int max3107_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- struct max3107_port *s = container_of(chip, struct max3107_port, chip);
- u16 buf[2]; /* Buffer for SPI transfers */
-
- if (offset >= MAX3107_GPIO_COUNT) {
- dev_err(&s->spi->dev, "Invalid GPIO\n");
- return -EINVAL;
- }
-
- /* Read current GPIO configuration and data registers */
- buf[0] = MAX3107_GPIOCFG_REG;
- buf[1] = MAX3107_GPIODATA_REG;
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
- dev_err(&s->spi->dev, "SPI transfer gpio failed\n");
- return -EIO;
- }
- buf[0] &= MAX3107_SPI_RX_DATA_MASK;
- buf[1] &= MAX3107_SPI_RX_DATA_MASK;
-
- /* Set GPIO to output */
- buf[0] |= (0x0001 << offset);
- /* Set value */
- if (value)
- buf[1] |= (0x0001 << offset);
- else
- buf[1] &= ~(0x0001 << offset);
-
- /* Write new GPIO configuration and data register values */
- buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
- buf[1] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, NULL, 4)) {
- dev_err(&s->spi->dev,
- "SPI transfer for GPIO conf data w failed\n");
- return -EIO;
- }
- return 0;
-}
-
-/* GPIO value query function */
-static int max3107_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
- struct max3107_port *s = container_of(chip, struct max3107_port, chip);
- u16 buf[1]; /* Buffer for SPI transfer */
-
- if (offset >= MAX3107_GPIO_COUNT) {
- dev_err(&s->spi->dev, "Invalid GPIO\n");
- return -EINVAL;
- }
-
- /* Read current GPIO data register */
- buf[0] = MAX3107_GPIODATA_REG;
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
- dev_err(&s->spi->dev, "SPI transfer GPIO data r failed\n");
- return -EIO;
- }
- buf[0] &= MAX3107_SPI_RX_DATA_MASK;
-
- /* Return value */
- return buf[0] & (0x0001 << offset);
-}
-
-/* GPIO value set function */
-static void max3107_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
- struct max3107_port *s = container_of(chip, struct max3107_port, chip);
- u16 buf[2]; /* Buffer for SPI transfers */
-
- if (offset >= MAX3107_GPIO_COUNT) {
- dev_err(&s->spi->dev, "Invalid GPIO\n");
- return;
- }
-
- /* Read current GPIO configuration registers*/
- buf[0] = MAX3107_GPIODATA_REG;
- buf[1] = MAX3107_GPIOCFG_REG;
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
- dev_err(&s->spi->dev,
- "SPI transfer for GPIO data and config read failed\n");
- return;
- }
- buf[0] &= MAX3107_SPI_RX_DATA_MASK;
- buf[1] &= MAX3107_SPI_RX_DATA_MASK;
-
- if (!(buf[1] & (0x0001 << offset))) {
- /* Configured as input, can't set value */
- dev_warn(&s->spi->dev,
- "Trying to set value for input GPIO\n");
- return;
- }
-
- /* Set value */
- if (value)
- buf[0] |= (0x0001 << offset);
- else
- buf[0] &= ~(0x0001 << offset);
-
- /* Write new GPIO data register value */
- buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
- /* Perform SPI transfer */
- if (max3107_rw(s, (u8 *)buf, NULL, 2))
- dev_err(&s->spi->dev, "SPI transfer GPIO data w failed\n");
-}
-
-/* GPIO chip data */
-static struct gpio_chip max3107_gpio_chip = {
- .owner = THIS_MODULE,
- .direction_input = max3107_gpio_direction_in,
- .direction_output = max3107_gpio_direction_out,
- .get = max3107_gpio_get,
- .set = max3107_gpio_set,
- .can_sleep = 1,
- .base = MAX3107_GPIO_BASE,
- .ngpio = MAX3107_GPIO_COUNT,
-};
-
-/**
- * max3107_aava_reset - reset on AAVA systems
- * @spi: The SPI device we are probing
- *
- * Reset the device ready for probing.
- */
-
-static int max3107_aava_reset(struct spi_device *spi)
-{
- /* Reset the chip */
- if (gpio_request(MAX3107_RESET_GPIO, "max3107")) {
- pr_err("Requesting RESET GPIO failed\n");
- return -EIO;
- }
- if (gpio_direction_output(MAX3107_RESET_GPIO, 0)) {
- pr_err("Setting RESET GPIO to 0 failed\n");
- gpio_free(MAX3107_RESET_GPIO);
- return -EIO;
- }
- msleep(MAX3107_RESET_DELAY);
- if (gpio_direction_output(MAX3107_RESET_GPIO, 1)) {
- pr_err("Setting RESET GPIO to 1 failed\n");
- gpio_free(MAX3107_RESET_GPIO);
- return -EIO;
- }
- gpio_free(MAX3107_RESET_GPIO);
- msleep(MAX3107_WAKEUP_DELAY);
- return 0;
-}
-
-static int max3107_aava_configure(struct max3107_port *s)
-{
- int retval;
-
- /* Initialize GPIO chip data */
- s->chip = max3107_gpio_chip;
- s->chip.label = s->spi->modalias;
- s->chip.dev = &s->spi->dev;
-
- /* Add GPIO chip */
- retval = gpiochip_add(&s->chip);
- if (retval) {
- dev_err(&s->spi->dev, "Adding GPIO chip failed\n");
- return retval;
- }
-
- /* Temporary fix for EV2 boot problems, set modem reset to 0 */
- max3107_gpio_direction_out(&s->chip, 3, 0);
- return 0;
-}
-
-#if 0
-/* This will get enabled once we have the board stuff merged for this
- specific case */
-
-static const struct baud_table brg13_ext[] = {
- { 300, MAX3107_BRG13_B300 },
- { 600, MAX3107_BRG13_B600 },
- { 1200, MAX3107_BRG13_B1200 },
- { 2400, MAX3107_BRG13_B2400 },
- { 4800, MAX3107_BRG13_B4800 },
- { 9600, MAX3107_BRG13_B9600 },
- { 19200, MAX3107_BRG13_B19200 },
- { 57600, MAX3107_BRG13_B57600 },
- { 115200, MAX3107_BRG13_B115200 },
- { 230400, MAX3107_BRG13_B230400 },
- { 460800, MAX3107_BRG13_B460800 },
- { 921600, MAX3107_BRG13_B921600 },
- { 0, 0 }
-};
-
-static void max3107_aava_init(struct max3107_port *s)
-{
- /*override for AAVA SC specific*/
- if (mrst_platform_id() == MRST_PLATFORM_AAVA_SC) {
- if (get_koski_build_id() <= KOSKI_EV2)
- if (s->ext_clk) {
- s->brg_cfg = MAX3107_BRG13_B9600;
- s->baud_tbl = (struct baud_table *)brg13_ext;
- }
- }
-}
-#endif
-
-static int __devexit max3107_aava_remove(struct spi_device *spi)
-{
- struct max3107_port *s = dev_get_drvdata(&spi->dev);
-
- /* Remove GPIO chip */
- if (gpiochip_remove(&s->chip))
- dev_warn(&spi->dev, "Removing GPIO chip failed\n");
-
- /* Then do the default remove */
- return max3107_remove(spi);
-}
-
-/* Platform data */
-static struct max3107_plat aava_plat_data = {
- .loopback = 0,
- .ext_clk = 1,
-/* .init = max3107_aava_init, */
- .configure = max3107_aava_configure,
- .hw_suspend = max3107_hw_susp,
- .polled_mode = 0,
- .poll_time = 0,
-};
-
-
-static int __devinit max3107_probe_aava(struct spi_device *spi)
-{
- int err = max3107_aava_reset(spi);
- if (err < 0)
- return err;
- return max3107_probe(spi, &aava_plat_data);
-}
-
-/* Spi driver data */
-static struct spi_driver max3107_driver = {
- .driver = {
- .name = "aava-max3107",
- .owner = THIS_MODULE,
- },
- .probe = max3107_probe_aava,
- .remove = __devexit_p(max3107_aava_remove),
- .suspend = max3107_suspend,
- .resume = max3107_resume,
-};
-
-/* Driver init function */
-static int __init max3107_init(void)
-{
- return spi_register_driver(&max3107_driver);
-}
-
-/* Driver exit function */
-static void __exit max3107_exit(void)
-{
- spi_unregister_driver(&max3107_driver);
-}
-
-module_init(max3107_init);
-module_exit(max3107_exit);
-
-MODULE_DESCRIPTION("MAX3107 driver");
-MODULE_AUTHOR("Aavamobile");
-MODULE_ALIAS("spi:aava-max3107");
-MODULE_LICENSE("GPL v2");
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-01-26 17:32 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2012-01-26 17:41 [PATCH 1/3] ftdi_sio: Add more identifiers Alan Cox
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2012-01-26 17:45 ` [PATCH 3/3] serial: Kill off Moorestown code Alan Cox
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