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-rw-r--r--include/linux/atmel_pwm.h70
1 files changed, 0 insertions, 70 deletions
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 */