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authorOlof Johansson <olof@lixom.net>2014-07-12 21:27:47 -0700
committerOlof Johansson <olof@lixom.net>2014-07-12 21:27:47 -0700
commitbde19a7e7492f97701f011e4297bec6b992b22f8 (patch)
tree9843c948af134783d871ffe7819167f0c28b6250 /include/linux
parent4c834452aad01531db949414f94f817a86348d59 (diff)
parentf2a70e1fc1ccc0fcdf4ad12db7382134228fb552 (diff)
Merge tag 'at91-drivers' of git://github.com/at91linux/linux-at91 into next/drivers
Merge "at91: drivers for 3.17 #1" from Nicolas Ferre: "This update delayed to 3.17, is about replacing the existing calls to the older, non-standard drivers by the use of the newer "pwm-atmel" which takes advantage of the PWM framework. All concerned maintainer gave their acknowledgement to the relevant patches. At the end, it removes three obsolete drivers and the diffstat looks pretty nice as well." Atmel PWM driver update for 3.17 - move to the new PWM driver which uses PWM framework - remove 3 obsolete drivers (atmel-pwm-bl.c, leds-atmel-pwm.c and atmel_pwm.c) * tag 'at91-drivers' of git://github.com/at91linux/linux-at91: misc: atmel_pwm: remove obsolete driver leds: atmel-pwm: remove obsolete driver backlight: atmel-pwm-bl: remove obsolete driver avr32: update defconfig to use the generic PWM framework avr32: favr-32: use generic pwm_bl driver avr32: merisc: use generic leds_pwm driver avr32: MRMT: use generic leds_pwm driver avr32/at32ap: switch to the generic PWM framework PWM: atmel: allow building for AVR32 ARM: at91: remove useless at91_pwm_leds() ARM: at91: at91sam9rl: switch to generic PWM framework ARM: at91: sam9263ek: use generic leds_pwm driver ARM: at91: at91sam9263: switch to generic PWM framework ARM: at91: sam9m10g45ek: use generic leds_pwm driver ARM: at91: at91sam9g45: switch to generic PWM framework Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/atmel-pwm-bl.h43
-rw-r--r--include/linux/atmel_pwm.h70
2 files changed, 0 insertions, 113 deletions
diff --git a/include/linux/atmel-pwm-bl.h b/include/linux/atmel-pwm-bl.h
deleted file mode 100644
index 0153a47806c2..000000000000
--- a/include/linux/atmel-pwm-bl.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2007 Atmel Corporation
- *
- * Driver for the AT32AP700X PS/2 controller (PSIF).
- *
- * 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.
- */
-
-#ifndef __INCLUDE_ATMEL_PWM_BL_H
-#define __INCLUDE_ATMEL_PWM_BL_H
-
-/**
- * struct atmel_pwm_bl_platform_data
- * @pwm_channel: which PWM channel in the PWM module to use.
- * @pwm_frequency: PWM frequency to generate, the driver will try to be as
- * close as the prescaler allows.
- * @pwm_compare_max: value to use in the PWM channel compare register.
- * @pwm_duty_max: maximum duty cycle value, must be less than or equal to
- * pwm_compare_max.
- * @pwm_duty_min: minimum duty cycle value, must be less than pwm_duty_max.
- * @pwm_active_low: set to one if the low part of the PWM signal increases the
- * brightness of the backlight.
- * @gpio_on: GPIO line to control the backlight on/off, set to -1 if not used.
- * @on_active_low: set to one if the on/off signal is on when GPIO is low.
- *
- * This struct must be added to the platform device in the board code. It is
- * used by the atmel-pwm-bl driver to setup the GPIO to control on/off and the
- * PWM device.
- */
-struct atmel_pwm_bl_platform_data {
- unsigned int pwm_channel;
- unsigned int pwm_frequency;
- unsigned int pwm_compare_max;
- unsigned int pwm_duty_max;
- unsigned int pwm_duty_min;
- unsigned int pwm_active_low;
- int gpio_on;
- unsigned int on_active_low;
-};
-
-#endif /* __INCLUDE_ATMEL_PWM_BL_H */
diff --git a/include/linux/atmel_pwm.h b/include/linux/atmel_pwm.h
deleted file mode 100644
index ea04abb3db8e..000000000000
--- a/include/linux/atmel_pwm.h
+++ /dev/null
@@ -1,70 +0,0 @@
-#ifndef __LINUX_ATMEL_PWM_H
-#define __LINUX_ATMEL_PWM_H
-
-/**
- * struct pwm_channel - driver handle to a PWM channel
- * @regs: base of this channel's registers
- * @index: number of this channel (0..31)
- * @mck: base clock rate, which can be prescaled and maybe subdivided
- *
- * Drivers initialize a pwm_channel structure using pwm_channel_alloc().
- * Then they configure its clock rate (derived from MCK), alignment,
- * polarity, and duty cycle by writing directly to the channel registers,
- * before enabling the channel by calling pwm_channel_enable().
- *
- * After emitting a PWM signal for the desired length of time, drivers
- * may then pwm_channel_disable() or pwm_channel_free(). Both of these
- * disable the channel, but when it's freed the IRQ is deconfigured and
- * the channel must later be re-allocated and reconfigured.
- *
- * Note that if the period or duty cycle need to be changed while the
- * PWM channel is operating, drivers must use the PWM_CUPD double buffer
- * mechanism, either polling until they change or getting implicitly
- * notified through a once-per-period interrupt handler.
- */
-struct pwm_channel {
- void __iomem *regs;
- unsigned index;
- unsigned long mck;
-};
-
-extern int pwm_channel_alloc(int index, struct pwm_channel *ch);
-extern int pwm_channel_free(struct pwm_channel *ch);
-
-extern int pwm_clk_alloc(unsigned prescale, unsigned div);
-extern void pwm_clk_free(unsigned clk);
-
-extern int __pwm_channel_onoff(struct pwm_channel *ch, int enabled);
-
-#define pwm_channel_enable(ch) __pwm_channel_onoff((ch), 1)
-#define pwm_channel_disable(ch) __pwm_channel_onoff((ch), 0)
-
-/* periodic interrupts, mostly for CUPD changes to period or cycle */
-extern int pwm_channel_handler(struct pwm_channel *ch,
- void (*handler)(struct pwm_channel *ch));
-
-/* per-channel registers (banked at pwm_channel->regs) */
-#define PWM_CMR 0x00 /* mode register */
-#define PWM_CPR_CPD (1 << 10) /* set: CUPD modifies period */
-#define PWM_CPR_CPOL (1 << 9) /* set: idle high */
-#define PWM_CPR_CALG (1 << 8) /* set: center align */
-#define PWM_CPR_CPRE (0xf << 0) /* mask: rate is mck/(2^pre) */
-#define PWM_CPR_CLKA (0xb << 0) /* rate CLKA */
-#define PWM_CPR_CLKB (0xc << 0) /* rate CLKB */
-#define PWM_CDTY 0x04 /* duty cycle (max of CPRD) */
-#define PWM_CPRD 0x08 /* period (count up from zero) */
-#define PWM_CCNT 0x0c /* counter (20 bits?) */
-#define PWM_CUPD 0x10 /* update CPRD (or CDTY) next period */
-
-static inline void
-pwm_channel_writel(struct pwm_channel *pwmc, unsigned offset, u32 val)
-{
- __raw_writel(val, pwmc->regs + offset);
-}
-
-static inline u32 pwm_channel_readl(struct pwm_channel *pwmc, unsigned offset)
-{
- return __raw_readl(pwmc->regs + offset);
-}
-
-#endif /* __LINUX_ATMEL_PWM_H */