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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-11 14:06:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-11 14:06:55 -0700
commit7f33e7241d3dbad3c0563fd1fc79fc9380b5c351 (patch)
tree4f0f72e0954e9a5a60679780a4cdf0bf243d47e1 /include
parent2dc24b0d0636349d403ae803bbad0c84f6c2ea57 (diff)
parent39fd3f99aba3f7683fc9b62e916e4c886a1cb6b0 (diff)
downloadlinux-7f33e7241d3dbad3c0563fd1fc79fc9380b5c351.tar.bz2
Merge tag 'pwm/for-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm changes from Thierry Reding: "The majority of these changes are cleanups and fixes across all drivers. Redundant error messages are removed and more PWM controllers set the .can_sleep flag to signal that they can't be used in atomic context. Support is added for the Broadcom Kona family of SoCs and the Intel LPSS driver can now probe PCI devices in addition to ACPI devices. Upon shutdown, the pwm-backlight driver will now power off the backlight. It also uses the new descriptor-based GPIO API for more concise GPIO handling. A large chunk of these changes also converts platforms to use the lookup mechanism rather than relying on the global number space to reference PWM devices. This is largely in preparation for more unification and cleanups in future patches. Eventually it will allow the legacy PWM API to be removed" * tag 'pwm/for-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (38 commits) pwm: fsl-ftm: set pwm_chip can_sleep flag pwm: ab8500: Fix wrong value shift for disable/enable PWM pwm: samsung: do not set manual update bit in pwm_samsung_config pwm: lp3943: Set pwm_chip can_sleep flag pwm: atmel: set pwm_chip can_sleep flag pwm: mxs: set pwm_chip can_sleep flag pwm: tiehrpwm: inline accessor functions pwm: tiehrpwm: don't build PM related functions when not needed pwm-backlight: retrieve configured PWM period leds: leds-pwm: retrieve configured PWM period ARM: pxa: hx4700: use PWM_LOOKUP to initialize struct pwm_lookup ARM: shmobile: armadillo: use PWM_LOOKUP to initialize struct pwm_lookup ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize struct pwm_lookup pwm: modify PWM_LOOKUP to initialize all struct pwm_lookup members ARM: pxa: hx4700: initialize all the struct pwm_lookup members ARM: OMAP3: Beagle: initialize all the struct pwm_lookup members pwm: renesas-tpu: remove unused struct tpu_pwm_platform_data ARM: shmobile: armadillo: initialize all struct pwm_lookup members pwm: add period and polarity to struct pwm_lookup pwm: twl: Really disable twl6030 PWMs ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_data/pwm-renesas-tpu.h16
-rw-r--r--include/linux/pwm.h6
-rw-r--r--include/linux/pwm_backlight.h5
3 files changed, 6 insertions, 21 deletions
diff --git a/include/linux/platform_data/pwm-renesas-tpu.h b/include/linux/platform_data/pwm-renesas-tpu.h
deleted file mode 100644
index a7220b10ddab..000000000000
--- a/include/linux/platform_data/pwm-renesas-tpu.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __PWM_RENESAS_TPU_H__
-#define __PWM_RENESAS_TPU_H__
-
-#include <linux/pwm.h>
-
-#define TPU_CHANNEL_MAX 4
-
-struct tpu_pwm_channel_data {
- enum pwm_polarity polarity;
-};
-
-struct tpu_pwm_platform_data {
- struct tpu_pwm_channel_data channels[TPU_CHANNEL_MAX];
-};
-
-#endif /* __PWM_RENESAS_TPU_H__ */
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 4717f54051cb..e90628cac8fa 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -274,14 +274,18 @@ struct pwm_lookup {
unsigned int index;
const char *dev_id;
const char *con_id;
+ unsigned int period;
+ enum pwm_polarity polarity;
};
-#define PWM_LOOKUP(_provider, _index, _dev_id, _con_id) \
+#define PWM_LOOKUP(_provider, _index, _dev_id, _con_id, _period, _polarity) \
{ \
.provider = _provider, \
.index = _index, \
.dev_id = _dev_id, \
.con_id = _con_id, \
+ .period = _period, \
+ .polarity = _polarity \
}
#if IS_ENABLED(CONFIG_PWM)
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index 2de2e275b2cb..efdd9227a49c 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -6,9 +6,6 @@
#include <linux/backlight.h>
-/* TODO: convert to gpiod_*() API once it has been merged */
-#define PWM_BACKLIGHT_GPIO_ACTIVE_LOW (1 << 0)
-
struct platform_pwm_backlight_data {
int pwm_id;
unsigned int max_brightness;
@@ -16,8 +13,8 @@ struct platform_pwm_backlight_data {
unsigned int lth_brightness;
unsigned int pwm_period_ns;
unsigned int *levels;
+ /* TODO remove once all users are switched to gpiod_* API */
int enable_gpio;
- unsigned long enable_gpio_flags;
int (*init)(struct device *dev);
int (*notify)(struct device *dev, int brightness);
void (*notify_after)(struct device *dev, int brightness);