* [PATCH v2 1/2] mfd: twl: Replace twl_has_*() macros by IS_ENABLED()
2012-09-18 8:29 [PATCH v2 0/2] mfd: twl: Move PWM driver to PWM framework Thierry Reding
@ 2012-09-18 8:29 ` Thierry Reding
2012-09-18 8:29 ` [PATCH v2 2/2] pwm: Move TWL6030 PWM driver to PWM framework Thierry Reding
2012-09-19 11:23 ` [PATCH v2 0/2] mfd: twl: Move " Samuel Ortiz
2 siblings, 0 replies; 9+ messages in thread
From: Thierry Reding @ 2012-09-18 8:29 UTC (permalink / raw)
To: Samuel Ortiz
Cc: NeilBrown, Peter Ujfalusi, Benoit Cousson, Felipe Balbi,
linux-kernel
Instead of reinventing macros for the same purpose, use the standard
macros.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
drivers/mfd/twl-core.c | 117 +++++++++++--------------------------------------
1 file changed, 25 insertions(+), 92 deletions(-)
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 1c32afe..5fbb2a6 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -63,70 +63,6 @@
#define DRIVER_NAME "twl"
-#if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
-#define twl_has_keypad() true
-#else
-#define twl_has_keypad() false
-#endif
-
-#if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
-#define twl_has_gpio() true
-#else
-#define twl_has_gpio() false
-#endif
-
-#if defined(CONFIG_REGULATOR_TWL4030) \
- || defined(CONFIG_REGULATOR_TWL4030_MODULE)
-#define twl_has_regulator() true
-#else
-#define twl_has_regulator() false
-#endif
-
-#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
-#define twl_has_madc() true
-#else
-#define twl_has_madc() false
-#endif
-
-#ifdef CONFIG_TWL4030_POWER
-#define twl_has_power() true
-#else
-#define twl_has_power() false
-#endif
-
-#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
-#define twl_has_rtc() true
-#else
-#define twl_has_rtc() false
-#endif
-
-#if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
- defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
-#define twl_has_usb() true
-#else
-#define twl_has_usb() false
-#endif
-
-#if defined(CONFIG_TWL4030_WATCHDOG) || \
- defined(CONFIG_TWL4030_WATCHDOG_MODULE)
-#define twl_has_watchdog() true
-#else
-#define twl_has_watchdog() false
-#endif
-
-#if defined(CONFIG_MFD_TWL4030_AUDIO) || \
- defined(CONFIG_MFD_TWL4030_AUDIO_MODULE)
-#define twl_has_codec() true
-#else
-#define twl_has_codec() false
-#endif
-
-#if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
-#define twl_has_bci() true
-#else
-#define twl_has_bci() false
-#endif
-
/* Triton Core internal information (BEGIN) */
/* Last - for index max*/
@@ -134,13 +70,6 @@
#define TWL_NUM_SLAVES 4
-#if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
- || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
-#define twl_has_pwrbutton() true
-#else
-#define twl_has_pwrbutton() false
-#endif
-
#define SUB_CHIP_ID0 0
#define SUB_CHIP_ID1 1
#define SUB_CHIP_ID2 2
@@ -669,7 +598,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
struct device *child;
unsigned sub_chip_id;
- if (twl_has_gpio() && pdata->gpio) {
+ if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) {
child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
pdata->gpio, sizeof(*pdata->gpio),
false, irq_base + GPIO_INTR_OFFSET, 0);
@@ -677,7 +606,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
- if (twl_has_keypad() && pdata->keypad) {
+ if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) {
child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
pdata->keypad, sizeof(*pdata->keypad),
true, irq_base + KEYPAD_INTR_OFFSET, 0);
@@ -685,7 +614,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
- if (twl_has_madc() && pdata->madc) {
+ if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc) {
child = add_child(2, "twl4030_madc",
pdata->madc, sizeof(*pdata->madc),
true, irq_base + MADC_INTR_OFFSET, 0);
@@ -693,7 +622,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
- if (twl_has_rtc()) {
+ if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) {
/*
* REVISIT platform_data here currently might expose the
* "msecure" line ... but for now we just expect board
@@ -709,7 +638,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
- if (twl_has_usb() && pdata->usb && twl_class_is_4030()) {
+ if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb &&
+ twl_class_is_4030()) {
static struct regulator_consumer_supply usb1v5 = {
.supply = "usb1v5",
@@ -723,7 +653,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
};
/* First add the regulators so that they can be used by transceiver */
- if (twl_has_regulator()) {
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) {
/* this is a template that gets copied */
struct regulator_init_data usb_fixed = {
.constraints.valid_modes_mask =
@@ -765,18 +695,19 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
/* we need to connect regulators to this transceiver */
- if (twl_has_regulator() && child) {
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) {
usb1v5.dev_name = dev_name(child);
usb1v8.dev_name = dev_name(child);
usb3v1[0].dev_name = dev_name(child);
}
}
- if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
+ if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb &&
+ twl_class_is_6030()) {
static struct regulator_consumer_supply usb3v3;
int regulator;
- if (twl_has_regulator()) {
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) {
/* this is a template that gets copied */
struct regulator_init_data usb_fixed = {
.constraints.valid_modes_mask =
@@ -813,9 +744,10 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
if (IS_ERR(child))
return PTR_ERR(child);
/* we need to connect regulators to this transceiver */
- if (twl_has_regulator() && child)
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child)
usb3v3.dev_name = dev_name(child);
- } else if (twl_has_regulator() && twl_class_is_6030()) {
+ } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) &&
+ twl_class_is_6030()) {
if (features & TWL6025_SUBCLASS)
child = add_regulator(TWL6025_REG_LDOUSB,
pdata->ldousb, features);
@@ -827,20 +759,21 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
- if (twl_has_watchdog() && twl_class_is_4030()) {
+ if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) {
child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
- if (twl_has_pwrbutton() && twl_class_is_4030()) {
+ if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) {
child = add_child(1, "twl4030_pwrbutton",
NULL, 0, true, irq_base + 8 + 0, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
- if (twl_has_codec() && pdata->audio && twl_class_is_4030()) {
+ if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio &&
+ twl_class_is_4030()) {
sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
child = add_child(sub_chip_id, "twl4030-audio",
pdata->audio, sizeof(*pdata->audio),
@@ -850,7 +783,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
/* twl4030 regulators */
- if (twl_has_regulator() && twl_class_is_4030()) {
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) {
child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
features);
if (IS_ERR(child))
@@ -905,7 +838,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
/* maybe add LDOs that are omitted on cost-reduced parts */
- if (twl_has_regulator() && !(features & TPS_SUBSET)
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET)
&& twl_class_is_4030()) {
child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
features);
@@ -939,7 +872,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
/* twl6030 regulators */
- if (twl_has_regulator() && twl_class_is_6030() &&
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() &&
!(features & TWL6025_SUBCLASS)) {
child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1,
features);
@@ -1013,7 +946,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
/* 6030 and 6025 share this regulator */
- if (twl_has_regulator() && twl_class_is_6030()) {
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) {
child = add_regulator(TWL6030_REG_VANA, pdata->vana,
features);
if (IS_ERR(child))
@@ -1021,7 +954,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
/* twl6025 regulators */
- if (twl_has_regulator() && twl_class_is_6030() &&
+ if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() &&
(features & TWL6025_SUBCLASS)) {
child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
features);
@@ -1080,7 +1013,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
}
- if (twl_has_bci() && pdata->bci &&
+ if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci &&
!(features & (TPS_SUBSET | TWL5031))) {
child = add_child(3, "twl4030_bci",
pdata->bci, sizeof(*pdata->bci), false,
@@ -1292,7 +1225,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
/* load power event scripts */
- if (twl_has_power() && pdata->power)
+ if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power)
twl4030_power_init(pdata->power);
/* Maybe init the T2 Interrupt subsystem */
--
1.7.12
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH v2 2/2] pwm: Move TWL6030 PWM driver to PWM framework
2012-09-18 8:29 [PATCH v2 0/2] mfd: twl: Move PWM driver to PWM framework Thierry Reding
2012-09-18 8:29 ` [PATCH v2 1/2] mfd: twl: Replace twl_has_*() macros by IS_ENABLED() Thierry Reding
@ 2012-09-18 8:29 ` Thierry Reding
2012-09-19 11:23 ` [PATCH v2 0/2] mfd: twl: Move " Samuel Ortiz
2 siblings, 0 replies; 9+ messages in thread
From: Thierry Reding @ 2012-09-18 8:29 UTC (permalink / raw)
To: Samuel Ortiz
Cc: NeilBrown, Peter Ujfalusi, Benoit Cousson, Felipe Balbi,
linux-kernel
This commit moves the driver to drivers/pwm and converts it to the new
PWM framework. In order for this to work properly, register the PWM as
child of the multi-function TWL6030 device.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
Changes in v2:
- check that chip is a 6030 before adding PWM child
drivers/mfd/Kconfig | 10 --
drivers/mfd/Makefile | 1 -
drivers/mfd/twl-core.c | 7 ++
drivers/pwm/Kconfig | 9 ++
drivers/pwm/Makefile | 1 +
drivers/{mfd/twl6030-pwm.c => pwm/pwm-twl6030.c} | 119 +++++++++++++----------
6 files changed, 86 insertions(+), 61 deletions(-)
rename drivers/{mfd/twl6030-pwm.c => pwm/pwm-twl6030.c} (55%)
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d1facef..2f45891 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -298,16 +298,6 @@ config MFD_TWL4030_AUDIO
select MFD_CORE
default n
-config TWL6030_PWM
- tristate "TWL6030 PWM (Pulse Width Modulator) Support"
- depends on TWL4030_CORE
- select HAVE_PWM
- depends on !PWM
- default n
- help
- Say yes here if you want support for TWL6030 PWM.
- This is used to control charging LED brightness.
-
config TWL6040_CORE
bool "Support for TWL6040 audio codec"
depends on I2C=y && GENERIC_HARDIRQS
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 79dd22d..53063a8 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -63,7 +63,6 @@ obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o
obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o
obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o
-obj-$(CONFIG_TWL6030_PWM) += twl6030-pwm.o
obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o twl6040-irq.o
obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 5fbb2a6..05b052a 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -638,6 +638,13 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
+ if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) {
+ child = add_child(TWL6030_MODULE_ID1, "twl6030-pwm", NULL, 0,
+ false, 0, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
+
if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb &&
twl_class_is_4030()) {
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index e678005..ed81720 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -142,6 +142,15 @@ config PWM_TIEHRPWM
To compile this driver as a module, choose M here: the module
will be called pwm-tiehrpwm.
+config PWM_TWL6030
+ tristate "TWL6030 PWM support"
+ depends on TWL4030_CORE
+ help
+ Generic PWM framework driver for TWL6030.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-twl6030.
+
config PWM_VT8500
tristate "vt8500 pwm support"
depends on ARCH_VT8500
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index 29cf57e..acfe482 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -11,4 +11,5 @@ obj-$(CONFIG_PWM_SAMSUNG) += pwm-samsung.o
obj-$(CONFIG_PWM_TEGRA) += pwm-tegra.o
obj-$(CONFIG_PWM_TIECAP) += pwm-tiecap.o
obj-$(CONFIG_PWM_TIEHRPWM) += pwm-tiehrpwm.o
+obj-$(CONFIG_PWM_TWL6030) += pwm-twl6030.o
obj-$(CONFIG_PWM_VT8500) += pwm-vt8500.o
diff --git a/drivers/mfd/twl6030-pwm.c b/drivers/pwm/pwm-twl6030.c
similarity index 55%
rename from drivers/mfd/twl6030-pwm.c
rename to drivers/pwm/pwm-twl6030.c
index e8fee14..8e63878 100644
--- a/drivers/mfd/twl6030-pwm.c
+++ b/drivers/pwm/pwm-twl6030.c
@@ -20,6 +20,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pwm.h>
#include <linux/i2c/twl.h>
#include <linux/slab.h>
@@ -45,40 +46,54 @@
#define PWM_CTRL2_MODE_MASK 0x3
-struct pwm_device {
- const char *label;
- unsigned int pwm_id;
+struct twl6030_pwm_chip {
+ struct pwm_chip chip;
};
-int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
+static int twl6030_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
{
- u8 duty_cycle;
int ret;
+ u8 val;
- if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
- return -EINVAL;
+ /* Configure PWM */
+ val = PWM_CTRL2_DIS_PD | PWM_CTRL2_CURR_02 | PWM_CTRL2_SRC_VAC |
+ PWM_CTRL2_MODE_HW;
- duty_cycle = (duty_ns * PWM_CTRL1_MAX) / period_ns;
+ ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, LED_PWM_CTRL2);
+ if (ret < 0) {
+ dev_err(chip->dev, "%s: Failed to configure PWM, Error %d\n",
+ pwm->label, ret);
+ return ret;
+ }
- ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, duty_cycle, LED_PWM_CTRL1);
+ return 0;
+}
+static int twl6030_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
+{
+ u8 duty_cycle = (duty_ns * PWM_CTRL1_MAX) / period_ns;
+ int ret;
+
+ ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, duty_cycle, LED_PWM_CTRL1);
if (ret < 0) {
pr_err("%s: Failed to configure PWM, Error %d\n",
pwm->label, ret);
return ret;
}
+
return 0;
}
-EXPORT_SYMBOL(pwm_config);
-int pwm_enable(struct pwm_device *pwm)
+static int twl6030_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
- u8 val;
int ret;
+ u8 val;
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, LED_PWM_CTRL2);
if (ret < 0) {
- pr_err("%s: Failed to enable PWM, Error %d\n", pwm->label, ret);
+ dev_err(chip->dev, "%s: Failed to enable PWM, Error %d\n",
+ pwm->label, ret);
return ret;
}
@@ -88,23 +103,23 @@ int pwm_enable(struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, LED_PWM_CTRL2);
if (ret < 0) {
- pr_err("%s: Failed to enable PWM, Error %d\n", pwm->label, ret);
+ dev_err(chip->dev, "%s: Failed to enable PWM, Error %d\n",
+ pwm->label, ret);
return ret;
}
twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, LED_PWM_CTRL2);
return 0;
}
-EXPORT_SYMBOL(pwm_enable);
-void pwm_disable(struct pwm_device *pwm)
+static void twl6030_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
{
- u8 val;
int ret;
+ u8 val;
ret = twl_i2c_read_u8(TWL6030_MODULE_ID1, &val, LED_PWM_CTRL2);
if (ret < 0) {
- pr_err("%s: Failed to disable PWM, Error %d\n",
+ dev_err(chip->dev, "%s: Failed to disable PWM, Error %d\n",
pwm->label, ret);
return;
}
@@ -114,52 +129,56 @@ void pwm_disable(struct pwm_device *pwm)
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, LED_PWM_CTRL2);
if (ret < 0) {
- pr_err("%s: Failed to disable PWM, Error %d\n",
+ dev_err(chip->dev, "%s: Failed to disable PWM, Error %d\n",
pwm->label, ret);
- return;
}
- return;
}
-EXPORT_SYMBOL(pwm_disable);
-struct pwm_device *pwm_request(int pwm_id, const char *label)
+static const struct pwm_ops twl6030_pwm_ops = {
+ .request = twl6030_pwm_request,
+ .config = twl6030_pwm_config,
+ .enable = twl6030_pwm_enable,
+ .disable = twl6030_pwm_disable,
+};
+
+static int twl6030_pwm_probe(struct platform_device *pdev)
{
- u8 val;
+ struct twl6030_pwm_chip *twl6030;
int ret;
- struct pwm_device *pwm;
-
- pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL);
- if (pwm == NULL) {
- pr_err("%s: failed to allocate memory\n", label);
- return NULL;
- }
- pwm->label = label;
- pwm->pwm_id = pwm_id;
-
- /* Configure PWM */
- val = PWM_CTRL2_DIS_PD | PWM_CTRL2_CURR_02 | PWM_CTRL2_SRC_VAC |
- PWM_CTRL2_MODE_HW;
+ twl6030 = devm_kzalloc(&pdev->dev, sizeof(*twl6030), GFP_KERNEL);
+ if (!twl6030)
+ return -ENOMEM;
- ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, LED_PWM_CTRL2);
+ twl6030->chip.dev = &pdev->dev;
+ twl6030->chip.ops = &twl6030_pwm_ops;
+ twl6030->chip.base = -1;
+ twl6030->chip.npwm = 1;
- if (ret < 0) {
- pr_err("%s: Failed to configure PWM, Error %d\n",
- pwm->label, ret);
+ ret = pwmchip_add(&twl6030->chip);
+ if (ret < 0)
+ return ret;
- kfree(pwm);
- return NULL;
- }
+ platform_set_drvdata(pdev, twl6030);
- return pwm;
+ return 0;
}
-EXPORT_SYMBOL(pwm_request);
-void pwm_free(struct pwm_device *pwm)
+static int twl6030_pwm_remove(struct platform_device *pdev)
{
- pwm_disable(pwm);
- kfree(pwm);
+ struct twl6030_pwm_chip *twl6030 = platform_get_drvdata(pdev);
+
+ return pwmchip_remove(&twl6030->chip);
}
-EXPORT_SYMBOL(pwm_free);
+static struct platform_driver twl6030_pwm_driver = {
+ .driver = {
+ .name = "twl6030-pwm",
+ },
+ .probe = twl6030_pwm_probe,
+ .remove = __devexit_p(twl6030_pwm_remove),
+};
+module_platform_driver(twl6030_pwm_driver);
+
+MODULE_ALIAS("platform:twl6030-pwm");
MODULE_LICENSE("GPL");
--
1.7.12
^ permalink raw reply related [flat|nested] 9+ messages in thread