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Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

Browse Source 
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  drivers:misc: ti-st: fix unexpected UART close
  drivers:misc: ti-st: free skb on firmware download
  drivers:misc: ti-st: wait for completion at fail
  drivers:misc: ti-st: reinit completion before send
  drivers:misc: ti-st: fail-safe on wrong pkt type
  drivers:misc: ti-st: reinit completion on ver read
  drivers:misc:ti-st: platform hooks for chip states
  drivers:misc: ti-st: avoid a misleading dbg msg
  base/devres.c: quiet sparse noise about context imbalance
  pti: add missing CONFIG_PCI dependency
  drivers/base/devtmpfs.c: correct annotation of `setup_done'
  driver core: fix kernel-doc warning in platform.c
  firmware: fix google/gsmi.c build warning
This commit is contained in:
Linus Torvalds 2011-08-26 13:05:09 -07:00
commit 3ab47029d9
9 changed files with 92 additions and 5 deletions
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1
drivers/base/devres.c
View File

@ -397,6 +397,7 @@ static int remove_nodes(struct device *dev,
static int release_nodes(struct device *dev, struct list_head *first,
struct list_head *end, unsigned long flags)
__releases(&dev->devres_lock)
{
LIST_HEAD(todo);
int cnt;

2
drivers/base/devtmpfs.c
View File

@ -376,7 +376,7 @@ int devtmpfs_mount(const char *mntdir)
return err;
}
static __initdata DECLARE_COMPLETION(setup_done);
static DECLARE_COMPLETION(setup_done);
static int handle(const char *name, mode_t mode, struct device *dev)
{

2
drivers/base/platform.c
View File

@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(platform_bus);
/**
* arch_setup_pdev_archdata - Allow manipulation of archdata before its used
* @dev: platform device
* @pdev: platform device
*
* This is called before platform_device_add() such that any pdev_archdata may
* be setup before the platform_notifier is called. So if a user needs to

2
drivers/firmware/google/gsmi.c
View File

@ -420,7 +420,7 @@ static efi_status_t gsmi_get_next_variable(unsigned long *name_size,
static efi_status_t gsmi_set_variable(efi_char16_t *name,
efi_guid_t *vendor,
unsigned long attr,
u32 attr,
unsigned long data_size,
void *data)
{

1
drivers/misc/Kconfig
View File

@ -146,6 +146,7 @@ config PHANTOM
config INTEL_MID_PTI
tristate "Parallel Trace Interface for MIPI P1149.7 cJTAG standard"
depends on PCI
default n
help
The PTI (Parallel Trace Interface) driver directs

10
drivers/misc/ti-st/st_core.c
View File

@ -338,6 +338,12 @@ void st_int_recv(void *disc_data,
/* Unknow packet? */
default:
type = *ptr;
if (st_gdata->list[type] == NULL) {
pr_err("chip/interface misbehavior dropping"
" frame starting with 0x%02x", type);
goto done;
}
st_gdata->rx_skb = alloc_skb(
st_gdata->list[type]->max_frame_size,
GFP_ATOMIC);
@ -354,6 +360,7 @@ void st_int_recv(void *disc_data,
ptr++;
count--;
}
done:
spin_unlock_irqrestore(&st_gdata->lock, flags);
pr_debug("done %s", __func__);
return;
@ -717,9 +724,10 @@ static void st_tty_close(struct tty_struct *tty)
*/
spin_lock_irqsave(&st_gdata->lock, flags);
for (i = ST_BT; i < ST_MAX_CHANNELS; i++) {
if (st_gdata->list[i] != NULL)
if (st_gdata->is_registered[i] == true)
pr_err("%d not un-registered", i);
st_gdata->list[i] = NULL;
st_gdata->is_registered[i] = false;
}
st_gdata->protos_registered = 0;
spin_unlock_irqrestore(&st_gdata->lock, flags);

33
drivers/misc/ti-st/st_kim.c
View File

@ -68,6 +68,7 @@ void validate_firmware_response(struct kim_data_s *kim_gdata)
if (unlikely(skb->data[5] != 0)) {
pr_err("no proper response during fw download");
pr_err("data6 %x", skb->data[5]);
kfree_skb(skb);
return; /* keep waiting for the proper response */
}
/* becos of all the script being downloaded */
@ -210,6 +211,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
pr_err(" waiting for ver info- timed out ");
return -ETIMEDOUT;
}
INIT_COMPLETION(kim_gdata->kim_rcvd);
version =
MAKEWORD(kim_gdata->resp_buffer[13],
@ -298,6 +300,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
switch (((struct bts_action *)ptr)->type) {
case ACTION_SEND_COMMAND: /* action send */
pr_debug("S");
action_ptr = &(((struct bts_action *)ptr)->data[0]);
if (unlikely
(((struct hci_command *)action_ptr)->opcode ==
@ -335,6 +338,10 @@ static long download_firmware(struct kim_data_s *kim_gdata)
release_firmware(kim_gdata->fw_entry);
return -ETIMEDOUT;
}
/* reinit completion before sending for the
* relevant wait
*/
INIT_COMPLETION(kim_gdata->kim_rcvd);
/*
* Free space found in uart buffer, call st_int_write
@ -361,6 +368,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
}
break;
case ACTION_WAIT_EVENT: /* wait */
pr_debug("W");
if (!wait_for_completion_timeout
(&kim_gdata->kim_rcvd,
msecs_to_jiffies(CMD_RESP_TIME))) {
@ -434,11 +442,17 @@ long st_kim_start(void *kim_data)
{
long err = 0;
long retry = POR_RETRY_COUNT;
struct ti_st_plat_data *pdata;
struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data;
pr_info(" %s", __func__);
pdata = kim_gdata->kim_pdev->dev.platform_data;
do {
/* platform specific enabling code here */
if (pdata->chip_enable)
pdata->chip_enable(kim_gdata);
/* Configure BT nShutdown to HIGH state */
gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
mdelay(5); /* FIXME: a proper toggle */
@ -460,6 +474,12 @@ long st_kim_start(void *kim_data)
pr_info("ldisc_install = 0");
sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
NULL, "install");
/* the following wait is never going to be completed,
* since the ldisc was never installed, hence serving
* as a mdelay of LDISC_TIME msecs */
err = wait_for_completion_timeout
(&kim_gdata->ldisc_installed,
msecs_to_jiffies(LDISC_TIME));
err = -ETIMEDOUT;
continue;
} else {
@ -472,6 +492,13 @@ long st_kim_start(void *kim_data)
pr_info("ldisc_install = 0");
sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
NULL, "install");
/* this wait might be completed, though in the
* tty_close() since the ldisc is already
* installed */
err = wait_for_completion_timeout
(&kim_gdata->ldisc_installed,
msecs_to_jiffies(LDISC_TIME));
err = -EINVAL;
continue;
} else { /* on success don't retry */
break;
@ -489,6 +516,8 @@ long st_kim_stop(void *kim_data)
{
long err = 0;
struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data;
struct ti_st_plat_data *pdata =
kim_gdata->kim_pdev->dev.platform_data;
INIT_COMPLETION(kim_gdata->ldisc_installed);
@ -515,6 +544,10 @@ long st_kim_stop(void *kim_data)
gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
mdelay(1);
gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
/* platform specific disable */
if (pdata->chip_disable)
pdata->chip_disable(kim_gdata);
return err;
}

19
drivers/misc/ti-st/st_ll.c
View File

@ -22,6 +22,7 @@
#define pr_fmt(fmt) "(stll) :" fmt
#include <linux/skbuff.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/ti_wilink_st.h>
/**********************************************************************/
@ -37,6 +38,9 @@ static void send_ll_cmd(struct st_data_s *st_data,
static void ll_device_want_to_sleep(struct st_data_s *st_data)
{
struct kim_data_s *kim_data;
struct ti_st_plat_data *pdata;
pr_debug("%s", __func__);
/* sanity check */
if (st_data->ll_state != ST_LL_AWAKE)
@ -46,10 +50,19 @@ static void ll_device_want_to_sleep(struct st_data_s *st_data)
send_ll_cmd(st_data, LL_SLEEP_ACK);
/* update state */
st_data->ll_state = ST_LL_ASLEEP;
/* communicate to platform about chip asleep */
kim_data = st_data->kim_data;
pdata = kim_data->kim_pdev->dev.platform_data;
if (pdata->chip_asleep)
pdata->chip_asleep(NULL);
}
static void ll_device_want_to_wakeup(struct st_data_s *st_data)
{
struct kim_data_s *kim_data;
struct ti_st_plat_data *pdata;
/* diff actions in diff states */
switch (st_data->ll_state) {
case ST_LL_ASLEEP:
@ -70,6 +83,12 @@ static void ll_device_want_to_wakeup(struct st_data_s *st_data)
}
/* update state */
st_data->ll_state = ST_LL_AWAKE;
/* communicate to platform about chip wakeup */
kim_data = st_data->kim_data;
pdata = kim_data->kim_pdev->dev.platform_data;
if (pdata->chip_asleep)
pdata->chip_awake(NULL);
}
/**********************************************************************/

27
include/linux/ti_wilink_st.h
View File

@ -410,7 +410,28 @@ struct gps_event_hdr {
u16 plen;
} __attribute__ ((packed));
/* platform data */
/**
* struct ti_st_plat_data - platform data shared between ST driver and
* platform specific board file which adds the ST device.
* @nshutdown_gpio: Host's GPIO line to which chip's BT_EN is connected.
* @dev_name: The UART/TTY name to which chip is interfaced. (eg: /dev/ttyS1)
* @flow_cntrl: Should always be 1, since UART's CTS/RTS is used for PM
* purposes.
* @baud_rate: The baud rate supported by the Host UART controller, this will
* be shared across with the chip via a HCI VS command from User-Space Init
* Mgr application.
* @suspend:
* @resume: legacy PM routines hooked to platform specific board file, so as
* to take chip-host interface specific action.
* @chip_enable:
* @chip_disable: Platform/Interface specific mux mode setting, GPIO
* configuring, Host side PM disabling etc.. can be done here.
* @chip_asleep:
* @chip_awake: Chip specific deep sleep states is communicated to Host
* specific board-xx.c to take actions such as cut UART clocks when chip
* asleep or run host faster when chip awake etc..
*
*/
struct ti_st_plat_data {
long nshutdown_gpio;
unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
@ -418,6 +439,10 @@ struct ti_st_plat_data {
unsigned long baud_rate;
int (*suspend)(struct platform_device *, pm_message_t);
int (*resume)(struct platform_device *);
int (*chip_enable) (struct kim_data_s *);
int (*chip_disable) (struct kim_data_s *);
int (*chip_asleep) (struct kim_data_s *);
int (*chip_awake) (struct kim_data_s *);
};
#endif /* TI_WILINK_ST_H */