* [PATCH] serial: 8250: add gpio support to exar
@ 2015-12-19 8:10 Sudip Mukherjee
2015-12-19 9:02 ` kbuild test robot
2015-12-19 9:09 ` kbuild test robot
0 siblings, 2 replies; 5+ messages in thread
From: Sudip Mukherjee @ 2015-12-19 8:10 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: linux-kernel, linux-serial, Sudip Mukherjee
Exar XR17V352/354/358 chips have 16 multi-purpose inputs/outputs which
can be controlled using gpio interface.
Add support to use these pins and select GPIO_SYSFS also so that these
pins can be used from the userspace through sysfs.
Tested-by: Rob Groner <rgroner@rtd.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
drivers/tty/serial/8250/8250.h | 14 ++
drivers/tty/serial/8250/8250_gpio.c | 276 ++++++++++++++++++++++++++++++++++++
drivers/tty/serial/8250/8250_pci.c | 26 +++-
drivers/tty/serial/8250/Kconfig | 8 ++
drivers/tty/serial/8250/Makefile | 1 +
5 files changed, 324 insertions(+), 1 deletion(-)
create mode 100644 drivers/tty/serial/8250/8250_gpio.c
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index d54dcd8..507447d 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -217,6 +217,20 @@ static inline int serial_index(struct uart_port *port)
return port->minor - 64;
}
+#ifdef CONFIG_GPIOLIB
+int xr17v35x_gpio_init(struct pci_dev *dev,
+ struct uart_8250_port *port);
+void xr17v35x_gpio_exit(struct uart_8250_port *port);
+#else
+static inline int xr17v35x_gpio_init(struct pci_dev *dev,
+ struct uart_8250_port *port)
+{
+ return 0;
+}
+
+static void xr17v35x_gpio_exit(struct uart_8250_port *port) { }
+#endif
+
#if 0
#define DEBUG_INTR(fmt...) printk(fmt)
#else
diff --git a/drivers/tty/serial/8250/8250_gpio.c b/drivers/tty/serial/8250/8250_gpio.c
new file mode 100644
index 0000000..1b14dd2
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_gpio.c
@@ -0,0 +1,276 @@
+/*
+ * GPIO driver for Exar XR17V35X chip
+ *
+ * Copyright (C) 2015 Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+ *
+ * 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.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/pci.h>
+#include <linux/gpio.h>
+#include "8250.h"
+
+#define EXAR_OFFSET_MPIOLVL_LO 0x90
+#define EXAR_OFFSET_MPIOSEL_LO 0x93
+#define EXAR_OFFSET_MPIOLVL_HI 0x96
+#define EXAR_OFFSET_MPIOSEL_HI 0x99
+
+static LIST_HEAD(exar_list);
+static DEFINE_MUTEX(exar_mtx); /* lock while manipulating the list */
+
+struct exar_gpio_chip {
+ struct gpio_chip gpio_chip;
+ struct mutex lock;
+ struct uart_8250_port *port;
+ struct list_head list;
+ int index;
+ void __iomem *regs;
+};
+
+#define to_exar_chip(n) container_of(n, struct exar_gpio_chip, gpio_chip)
+
+static inline unsigned int read_exar_reg(struct exar_gpio_chip *chip,
+ int offset)
+{
+ if (!chip) {
+ pr_err("%s exar_gpio is NULL\n", __func__);
+ return -ENOMEM;
+ }
+ pr_debug("%s regs=%p offset=%x\n", __func__, chip->regs, offset);
+
+ return readb(chip->regs + offset);
+}
+
+static inline void write_exar_reg(struct exar_gpio_chip *chip, int offset,
+ int value)
+{
+ if (!chip) {
+ pr_err("%s exar_gpio is NULL\n", __func__);
+ return;
+ }
+ pr_debug("%s regs=%p value=%x offset=%x\n", __func__, chip->regs,
+ value, offset);
+
+ writeb(value, chip->regs + offset);
+}
+
+void xr17v35x_gpio_exit(struct uart_8250_port *port)
+{
+ struct exar_gpio_chip *exar_gpio, *exar_temp1, *exar_temp2;
+
+ if (!port)
+ return;
+
+ exar_gpio = port->port.private_data;
+ if (!exar_gpio)
+ return;
+
+ mutex_lock(&exar_mtx);
+ list_for_each_entry_safe(exar_temp1, exar_temp2, &exar_list, list) {
+ if (exar_temp1->index == exar_gpio->index) {
+ list_del(&exar_temp1->list);
+ break;
+ }
+ }
+ mutex_unlock(&exar_mtx);
+
+ gpiochip_remove(&exar_gpio->gpio_chip);
+ mutex_destroy(&exar_gpio->lock);
+ iounmap(exar_gpio->regs);
+}
+EXPORT_SYMBOL(xr17v35x_gpio_exit);
+
+static void exar_set(struct gpio_chip *chip, unsigned int reg, int val,
+ unsigned int offset)
+{
+ struct exar_gpio_chip *exar_gpio = to_exar_chip(chip);
+ int temp;
+
+ mutex_lock(&exar_gpio->lock);
+ temp = read_exar_reg(exar_gpio, reg);
+ temp &= ~(1 << offset);
+ temp |= val << offset;
+ write_exar_reg(exar_gpio, reg, temp);
+ mutex_unlock(&exar_gpio->lock);
+}
+
+static int exar_direction_output(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ if (offset < 8)
+ exar_set(chip, EXAR_OFFSET_MPIOSEL_LO, 0, offset);
+ else
+ exar_set(chip, EXAR_OFFSET_MPIOSEL_HI, 0, offset - 8);
+ return 0;
+}
+
+static int exar_direction_input(struct gpio_chip *chip, unsigned int offset)
+{
+ if (offset < 8)
+ exar_set(chip, EXAR_OFFSET_MPIOSEL_LO, 1, offset);
+ else
+ exar_set(chip, EXAR_OFFSET_MPIOSEL_HI, 1, offset - 8);
+ return 0;
+}
+
+static int exar_get(struct gpio_chip *chip, unsigned int reg)
+{
+ int value;
+ struct exar_gpio_chip *exar_gpio = to_exar_chip(chip);
+
+ if (!exar_gpio) {
+ pr_err("%s exar_gpio is NULL\n", __func__);
+ return -ENOMEM;
+ }
+
+ mutex_lock(&exar_gpio->lock);
+ value = read_exar_reg(exar_gpio, reg);
+ mutex_unlock(&exar_gpio->lock);
+
+ return value;
+}
+
+static int exar_get_direction(struct gpio_chip *chip, unsigned int offset)
+{
+ int val;
+
+ if (offset < 8) {
+ val = exar_get(chip, EXAR_OFFSET_MPIOSEL_LO);
+ } else {
+ val = exar_get(chip, EXAR_OFFSET_MPIOSEL_HI);
+ offset -= 8;
+ }
+
+ if (val > 0) {
+ val >>= offset;
+ val &= 0x01;
+ }
+
+ return val;
+}
+
+static int exar_get_value(struct gpio_chip *chip, unsigned int offset)
+{
+ int val;
+
+ if (offset < 8) {
+ val = exar_get(chip, EXAR_OFFSET_MPIOLVL_LO);
+ } else {
+ val = exar_get(chip, EXAR_OFFSET_MPIOLVL_HI);
+ offset -= 8;
+ }
+ val >>= offset;
+ val &= 0x01;
+
+ return val;
+}
+
+static void exar_set_value(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ if (offset < 8)
+ exar_set(chip, EXAR_OFFSET_MPIOLVL_LO, value, offset);
+ else
+ exar_set(chip, EXAR_OFFSET_MPIOLVL_HI, value, offset - 8);
+}
+
+int xr17v35x_gpio_init(struct pci_dev *dev, struct uart_8250_port *port)
+{
+ struct exar_gpio_chip *exar_gpio, *exar_temp;
+ int ret;
+ void __iomem *p;
+ char *buf;
+ int index = 1;
+
+ p = pci_ioremap_bar(dev, 0);
+ if (!p)
+ return -ENOMEM;
+
+ exar_gpio = devm_kzalloc(&dev->dev, sizeof(*exar_gpio), GFP_KERNEL);
+ if (!exar_gpio) {
+ ret = -ENOMEM;
+ goto err_unmap;
+ }
+
+ /* assuming we will never have more than 99 boards */
+ buf = devm_kzalloc(&dev->dev, strlen("exar_gpio") + 3, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_unmap;
+ }
+
+ mutex_init(&exar_gpio->lock);
+ INIT_LIST_HEAD(&exar_gpio->list);
+
+ mutex_lock(&exar_mtx);
+ /* find the first unused index */
+ list_for_each_entry(exar_temp, &exar_list, list) {
+ if (exar_temp->index == index) {
+ index++;
+ continue;
+ }
+ }
+
+ if (index > 99) {
+ pr_err("We can support max. 99 boards\n");
+ ret = -ENODEV;
+ goto err_destroy;
+ }
+ sprintf(buf, "exar_gpio%d", index);
+ exar_gpio->gpio_chip.label = buf;
+ exar_gpio->gpio_chip.dev = &dev->dev;
+ exar_gpio->gpio_chip.direction_output = exar_direction_output;
+ exar_gpio->gpio_chip.direction_input = exar_direction_input;
+ exar_gpio->gpio_chip.get_direction = exar_get_direction;
+ exar_gpio->gpio_chip.get = exar_get_value;
+ exar_gpio->gpio_chip.set = exar_set_value;
+ exar_gpio->gpio_chip.base = -1;
+ exar_gpio->gpio_chip.ngpio = 16;
+ exar_gpio->gpio_chip.owner = THIS_MODULE;
+ exar_gpio->regs = p;
+ exar_gpio->index = index;
+
+ ret = gpiochip_add(&exar_gpio->gpio_chip);
+ if (ret)
+ goto err_destroy;
+
+ exar_gpio->port = port;
+ port->port.private_data = exar_gpio;
+
+ list_add_tail(&exar_gpio->list, &exar_list);
+ mutex_unlock(&exar_mtx);
+
+ return 0;
+
+err_destroy:
+ mutex_unlock(&exar_mtx);
+ mutex_destroy(&exar_gpio->lock);
+err_unmap:
+ iounmap(p);
+ return ret;
+}
+EXPORT_SYMBOL(xr17v35x_gpio_init);
+
+static void __exit exar_gpio_exit(void)
+{
+}
+
+module_exit(exar_gpio_exit);
+
+static int __init exar_gpio_init(void)
+{
+ return 0;
+}
+
+module_init(exar_gpio_init);
+
+MODULE_DESCRIPTION("Exar GPIO driver");
+MODULE_AUTHOR("Sudip Mukherjee <sudipm.mukherjee@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4097f3f..d3e3489 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1764,12 +1764,24 @@ xr17v35x_has_slave(struct serial_private *priv)
(dev_id == PCI_DEVICE_ID_EXAR_XR17V8358));
}
+static void pci_xr17v35x_exit(struct pci_dev *dev)
+{
+ struct serial_private *priv = pci_get_drvdata(dev);
+ struct uart_8250_port *port = NULL;
+
+ if (priv)
+ port = serial8250_get_port(priv->line[0]);
+
+ xr17v35x_gpio_exit(port);
+}
+
static int
pci_xr17v35x_setup(struct serial_private *priv,
const struct pciserial_board *board,
struct uart_8250_port *port, int idx)
{
u8 __iomem *p;
+ int ret;
p = pci_ioremap_bar(priv->dev, 0);
if (p == NULL)
@@ -1807,7 +1819,14 @@ pci_xr17v35x_setup(struct serial_private *priv,
writeb(128, p + UART_EXAR_RXTRG);
iounmap(p);
- return pci_default_setup(priv, board, port, idx);
+ ret = pci_default_setup(priv, board, port, idx);
+ if (ret)
+ return ret;
+
+ if (idx == 0 && priv->dev->vendor == PCI_VENDOR_ID_EXAR)
+ ret = xr17v35x_gpio_init(priv->dev, port);
+
+ return ret;
}
#define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004
@@ -2407,6 +2426,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_xr17v35x_setup,
+ .exit = pci_xr17v35x_exit,
},
{
.vendor = PCI_VENDOR_ID_EXAR,
@@ -2414,6 +2434,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_xr17v35x_setup,
+ .exit = pci_xr17v35x_exit,
},
{
.vendor = PCI_VENDOR_ID_EXAR,
@@ -2421,6 +2442,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_xr17v35x_setup,
+ .exit = pci_xr17v35x_exit,
},
{
.vendor = PCI_VENDOR_ID_EXAR,
@@ -2428,6 +2450,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_xr17v35x_setup,
+ .exit = pci_xr17v35x_exit,
},
{
.vendor = PCI_VENDOR_ID_EXAR,
@@ -2435,6 +2458,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_xr17v35x_setup,
+ .exit = pci_xr17v35x_exit,
},
/*
* Xircom cards
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index b03cb517..852f1d2 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -386,3 +386,11 @@ config SERIAL_OF_PLATFORM
are probed through devicetree, including Open Firmware based
PowerPC systems and embedded systems on architectures using the
flattened device tree format.
+
+config SERIAL_8250_EXAR_GPIO
+ tristate "Support for GPIO pins on XR17V352/354/358"
+ depends on SERIAL_8250_PCI && GPIOLIB
+ select GPIO_SYSFS
+ help
+ Selecting this option will enable handling of GPIO pins present
+ on Exar XR17V352/354/358 chips.
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index 4ecb80d..bcf5f14 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -29,5 +29,6 @@ obj-$(CONFIG_SERIAL_8250_UNIPHIER) += 8250_uniphier.o
obj-$(CONFIG_SERIAL_8250_INGENIC) += 8250_ingenic.o
obj-$(CONFIG_SERIAL_8250_MID) += 8250_mid.o
obj-$(CONFIG_SERIAL_8250_OF) += 8250_of.o
+obj-$(CONFIG_SERIAL_8250_EXAR_GPIO) += 8250_gpio.o
CFLAGS_8250_ingenic.o += -I$(srctree)/scripts/dtc/libfdt
--
1.9.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] serial: 8250: add gpio support to exar
2015-12-19 8:10 [PATCH] serial: 8250: add gpio support to exar Sudip Mukherjee
@ 2015-12-19 9:02 ` kbuild test robot
2015-12-19 9:09 ` kbuild test robot
1 sibling, 0 replies; 5+ messages in thread
From: kbuild test robot @ 2015-12-19 9:02 UTC (permalink / raw)
To: Sudip Mukherjee
Cc: kbuild-all, Greg Kroah-Hartman, Jiri Slaby, linux-kernel,
linux-serial, Sudip Mukherjee
[-- Attachment #1: Type: text/plain, Size: 2107 bytes --]
Hi Sudip,
[auto build test WARNING on tty/tty-testing]
[also build test WARNING on next-20151218]
[cannot apply to v4.4-rc5]
url: https://github.com/0day-ci/linux/commits/Sudip-Mukherjee/serial-8250-add-gpio-support-to-exar/20151219-161216
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: m32r-m32104ut_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=m32r
All warnings (new ones prefixed by >>):
In file included from drivers/tty/serial/8250/8250_core.c:46:0:
>> drivers/tty/serial/8250/8250.h:226:17: warning: 'struct pci_dev' declared inside parameter list
struct uart_8250_port *port)
^
>> drivers/tty/serial/8250/8250.h:226:17: warning: its scope is only this definition or declaration, which is probably not what you want
drivers/tty/serial/8250/8250.h:231:13: warning: 'xr17v35x_gpio_exit' defined but not used [-Wunused-function]
static void xr17v35x_gpio_exit(struct uart_8250_port *port) { }
^
vim +226 drivers/tty/serial/8250/8250.h
210 serial_out(up, 0x04, status);
211 }
212 return 1;
213 }
214
215 static inline int serial_index(struct uart_port *port)
216 {
217 return port->minor - 64;
218 }
219
220 #ifdef CONFIG_GPIOLIB
221 int xr17v35x_gpio_init(struct pci_dev *dev,
222 struct uart_8250_port *port);
223 void xr17v35x_gpio_exit(struct uart_8250_port *port);
224 #else
225 static inline int xr17v35x_gpio_init(struct pci_dev *dev,
> 226 struct uart_8250_port *port)
227 {
228 return 0;
229 }
230
231 static void xr17v35x_gpio_exit(struct uart_8250_port *port) { }
232 #endif
233
234 #if 0
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/octet-stream, Size: 10138 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial: 8250: add gpio support to exar
@ 2015-12-19 9:02 ` kbuild test robot
0 siblings, 0 replies; 5+ messages in thread
From: kbuild test robot @ 2015-12-19 9:02 UTC (permalink / raw)
Cc: kbuild-all, Greg Kroah-Hartman, Jiri Slaby, linux-kernel,
linux-serial, Sudip Mukherjee
[-- Attachment #1: Type: text/plain, Size: 2107 bytes --]
Hi Sudip,
[auto build test WARNING on tty/tty-testing]
[also build test WARNING on next-20151218]
[cannot apply to v4.4-rc5]
url: https://github.com/0day-ci/linux/commits/Sudip-Mukherjee/serial-8250-add-gpio-support-to-exar/20151219-161216
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: m32r-m32104ut_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=m32r
All warnings (new ones prefixed by >>):
In file included from drivers/tty/serial/8250/8250_core.c:46:0:
>> drivers/tty/serial/8250/8250.h:226:17: warning: 'struct pci_dev' declared inside parameter list
struct uart_8250_port *port)
^
>> drivers/tty/serial/8250/8250.h:226:17: warning: its scope is only this definition or declaration, which is probably not what you want
drivers/tty/serial/8250/8250.h:231:13: warning: 'xr17v35x_gpio_exit' defined but not used [-Wunused-function]
static void xr17v35x_gpio_exit(struct uart_8250_port *port) { }
^
vim +226 drivers/tty/serial/8250/8250.h
210 serial_out(up, 0x04, status);
211 }
212 return 1;
213 }
214
215 static inline int serial_index(struct uart_port *port)
216 {
217 return port->minor - 64;
218 }
219
220 #ifdef CONFIG_GPIOLIB
221 int xr17v35x_gpio_init(struct pci_dev *dev,
222 struct uart_8250_port *port);
223 void xr17v35x_gpio_exit(struct uart_8250_port *port);
224 #else
225 static inline int xr17v35x_gpio_init(struct pci_dev *dev,
> 226 struct uart_8250_port *port)
227 {
228 return 0;
229 }
230
231 static void xr17v35x_gpio_exit(struct uart_8250_port *port) { }
232 #endif
233
234 #if 0
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/octet-stream, Size: 10138 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial: 8250: add gpio support to exar
2015-12-19 8:10 [PATCH] serial: 8250: add gpio support to exar Sudip Mukherjee
@ 2015-12-19 9:09 ` kbuild test robot
2015-12-19 9:09 ` kbuild test robot
1 sibling, 0 replies; 5+ messages in thread
From: kbuild test robot @ 2015-12-19 9:09 UTC (permalink / raw)
To: Sudip Mukherjee
Cc: kbuild-all, Greg Kroah-Hartman, Jiri Slaby, linux-kernel,
linux-serial, Sudip Mukherjee
[-- Attachment #1: Type: text/plain, Size: 937 bytes --]
Hi Sudip,
[auto build test ERROR on tty/tty-testing]
[also build test ERROR on next-20151218]
[cannot apply to v4.4-rc5]
url: https://github.com/0day-ci/linux/commits/Sudip-Mukherjee/serial-8250-add-gpio-support-to-exar/20151219-161216
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: i386-randconfig-s1-201550 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
drivers/built-in.o: In function `pci_xr17v35x_exit':
>> 8250_pci.c:(.text+0x182f19): undefined reference to `xr17v35x_gpio_exit'
drivers/built-in.o: In function `pci_xr17v35x_setup':
>> 8250_pci.c:(.text+0x183189): undefined reference to `xr17v35x_gpio_init'
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/octet-stream, Size: 26115 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial: 8250: add gpio support to exar
@ 2015-12-19 9:09 ` kbuild test robot
0 siblings, 0 replies; 5+ messages in thread
From: kbuild test robot @ 2015-12-19 9:09 UTC (permalink / raw)
Cc: kbuild-all, Greg Kroah-Hartman, Jiri Slaby, linux-kernel,
linux-serial, Sudip Mukherjee
[-- Attachment #1: Type: text/plain, Size: 937 bytes --]
Hi Sudip,
[auto build test ERROR on tty/tty-testing]
[also build test ERROR on next-20151218]
[cannot apply to v4.4-rc5]
url: https://github.com/0day-ci/linux/commits/Sudip-Mukherjee/serial-8250-add-gpio-support-to-exar/20151219-161216
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: i386-randconfig-s1-201550 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
drivers/built-in.o: In function `pci_xr17v35x_exit':
>> 8250_pci.c:(.text+0x182f19): undefined reference to `xr17v35x_gpio_exit'
drivers/built-in.o: In function `pci_xr17v35x_setup':
>> 8250_pci.c:(.text+0x183189): undefined reference to `xr17v35x_gpio_init'
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/octet-stream, Size: 26115 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-12-19 9:10 UTC | newest]
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-- links below jump to the message on this page --
2015-12-19 8:10 [PATCH] serial: 8250: add gpio support to exar Sudip Mukherjee
2015-12-19 9:02 ` kbuild test robot
2015-12-19 9:02 ` kbuild test robot
2015-12-19 9:09 ` kbuild test robot
2015-12-19 9:09 ` kbuild test robot
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