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path: root/drivers/misc/ti-st
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Diffstat (limited to 'drivers/misc/ti-st')
-rw-r--r--drivers/misc/ti-st/st_kim.c105
-rw-r--r--drivers/misc/ti-st/st_ll.c17
2 files changed, 14 insertions, 108 deletions
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index de985ce28..c976d961b 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -36,8 +36,6 @@
#include <linux/skbuff.h>
#include <linux/ti_wilink_st.h>
#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
#define MAX_ST_DEVICES 3 /* Imagine 1 on each UART for now */
static struct platform_device *st_kim_devices[MAX_ST_DEVICES];
@@ -45,9 +43,6 @@ static struct platform_device *st_kim_devices[MAX_ST_DEVICES];
/**********************************************************************/
/* internal functions */
-struct ti_st_plat_data *dt_pdata;
-static struct ti_st_plat_data *get_platform_data(struct device *dev);
-
/**
* st_get_plat_device -
* function which returns the reference to the platform device
@@ -469,12 +464,7 @@ long st_kim_start(void *kim_data)
struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data;
pr_info(" %s", __func__);
- if (kim_gdata->kim_pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = kim_gdata->kim_pdev->dev.platform_data;
- }
+ pdata = kim_gdata->kim_pdev->dev.platform_data;
do {
/* platform specific enabling code here */
@@ -482,9 +472,9 @@ long st_kim_start(void *kim_data)
pdata->chip_enable(kim_gdata);
/* Configure BT nShutdown to HIGH state */
- gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
+ gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);
mdelay(5); /* FIXME: a proper toggle */
- gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
+ gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);
mdelay(100);
/* re-initialize the completion */
reinit_completion(&kim_gdata->ldisc_installed);
@@ -534,18 +524,12 @@ 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;
+ struct ti_st_plat_data *pdata =
+ kim_gdata->kim_pdev->dev.platform_data;
struct tty_struct *tty = kim_gdata->core_data->tty;
reinit_completion(&kim_gdata->ldisc_installed);
- if (kim_gdata->kim_pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else
- pdata = kim_gdata->kim_pdev->dev.platform_data;
-
-
if (tty) { /* can be called before ldisc is installed */
/* Flush any pending characters in the driver and discipline. */
tty_ldisc_flush(tty);
@@ -566,11 +550,11 @@ long st_kim_stop(void *kim_data)
}
/* By default configure BT nShutdown to LOW state */
- gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
+ gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);
mdelay(1);
- gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
+ gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);
mdelay(1);
- gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
+ gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);
/* platform specific disable */
if (pdata->chip_disable)
@@ -737,52 +721,13 @@ static const struct file_operations list_debugfs_fops = {
* board-*.c file
*/
-static const struct of_device_id kim_of_match[] = {
-{
- .compatible = "kim",
- },
- {}
-};
-MODULE_DEVICE_TABLE(of, kim_of_match);
-
-static struct ti_st_plat_data *get_platform_data(struct device *dev)
-{
- struct device_node *np = dev->of_node;
- const u32 *dt_property;
- int len;
-
- dt_pdata = kzalloc(sizeof(*dt_pdata), GFP_KERNEL);
- if (!dt_pdata)
- return NULL;
-
- dt_property = of_get_property(np, "dev_name", &len);
- if (dt_property)
- memcpy(&dt_pdata->dev_name, dt_property, len);
- of_property_read_u32(np, "nshutdown_gpio",
- &dt_pdata->nshutdown_gpio);
- of_property_read_u32(np, "flow_cntrl", &dt_pdata->flow_cntrl);
- of_property_read_u32(np, "baud_rate", &dt_pdata->baud_rate);
-
- return dt_pdata;
-}
-
static struct dentry *kim_debugfs_dir;
static int kim_probe(struct platform_device *pdev)
{
struct kim_data_s *kim_gdata;
- struct ti_st_plat_data *pdata;
+ struct ti_st_plat_data *pdata = pdev->dev.platform_data;
int err;
- if (pdev->dev.of_node)
- pdata = get_platform_data(&pdev->dev);
- else
- pdata = pdev->dev.platform_data;
-
- if (pdata == NULL) {
- dev_err(&pdev->dev, "Platform Data is missing\n");
- return -ENXIO;
- }
-
if ((pdev->id != -1) && (pdev->id < MAX_ST_DEVICES)) {
/* multiple devices could exist */
st_kim_devices[pdev->id] = pdev;
@@ -863,16 +808,9 @@ err_core_init:
static int kim_remove(struct platform_device *pdev)
{
/* free the GPIOs requested */
- struct ti_st_plat_data *pdata;
+ struct ti_st_plat_data *pdata = pdev->dev.platform_data;
struct kim_data_s *kim_gdata;
- if (pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = pdev->dev.platform_data;
- }
-
kim_gdata = platform_get_drvdata(pdev);
/* Free the Bluetooth/FM/GPIO
@@ -890,22 +828,12 @@ static int kim_remove(struct platform_device *pdev)
kfree(kim_gdata);
kim_gdata = NULL;
- kfree(dt_pdata);
- dt_pdata = NULL;
-
return 0;
}
static int kim_suspend(struct platform_device *pdev, pm_message_t state)
{
- struct ti_st_plat_data *pdata;
-
- if (pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = pdev->dev.platform_data;
- }
+ struct ti_st_plat_data *pdata = pdev->dev.platform_data;
if (pdata->suspend)
return pdata->suspend(pdev, state);
@@ -915,14 +843,7 @@ static int kim_suspend(struct platform_device *pdev, pm_message_t state)
static int kim_resume(struct platform_device *pdev)
{
- struct ti_st_plat_data *pdata;
-
- if (pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = pdev->dev.platform_data;
- }
+ struct ti_st_plat_data *pdata = pdev->dev.platform_data;
if (pdata->resume)
return pdata->resume(pdev);
@@ -939,8 +860,6 @@ static struct platform_driver kim_platform_driver = {
.resume = kim_resume,
.driver = {
.name = "kim",
- .owner = THIS_MODULE,
- .of_match_table = of_match_ptr(kim_of_match),
},
};
diff --git a/drivers/misc/ti-st/st_ll.c b/drivers/misc/ti-st/st_ll.c
index 518e1b7f2..93b4d67cc 100644
--- a/drivers/misc/ti-st/st_ll.c
+++ b/drivers/misc/ti-st/st_ll.c
@@ -26,7 +26,6 @@
#include <linux/ti_wilink_st.h>
/**********************************************************************/
-
/* internal functions */
static void send_ll_cmd(struct st_data_s *st_data,
unsigned char cmd)
@@ -54,13 +53,7 @@ static void ll_device_want_to_sleep(struct st_data_s *st_data)
/* communicate to platform about chip asleep */
kim_data = st_data->kim_data;
- if (kim_data->kim_pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = kim_data->kim_pdev->dev.platform_data;
- }
-
+ pdata = kim_data->kim_pdev->dev.platform_data;
if (pdata->chip_asleep)
pdata->chip_asleep(NULL);
}
@@ -93,13 +86,7 @@ static void ll_device_want_to_wakeup(struct st_data_s *st_data)
/* communicate to platform about chip wakeup */
kim_data = st_data->kim_data;
- if (kim_data->kim_pdev->dev.of_node) {
- pr_debug("use device tree data");
- pdata = dt_pdata;
- } else {
- pdata = kim_data->kim_pdev->dev.platform_data;
- }
-
+ pdata = kim_data->kim_pdev->dev.platform_data;
if (pdata->chip_awake)
pdata->chip_awake(NULL);
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-04 17:27:53 +0000