pwm.h 1.2 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * (C) Copyright 2016 Hans de Goede <hdegoede@redhat.com>
  4. */
  5. #ifndef _SUNXI_PWM_H
  6. #define _SUNXI_PWM_H
  7. #ifndef __ASSEMBLY__
  8. #include <linux/bitops.h>
  9. #endif
  10. #define SUNXI_PWM_CTRL_REG (SUNXI_PWM_BASE + 0)
  11. #define SUNXI_PWM_CH0_PERIOD (SUNXI_PWM_BASE + 4)
  12. #define SUNXI_PWM_CTRL_PRESCALE0(x) ((x) & 0xf)
  13. #define SUNXI_PWM_CTRL_PRESCALE0_MASK 0xf
  14. #define SUNXI_PWM_CTRL_ENABLE0 (0x5 << 4)
  15. #define SUNXI_PWM_CTRL_POLARITY0(x) ((x) << 5)
  16. #define SUNXI_PWM_CTRL_CH0_ACT_STA BIT(5)
  17. #define SUNXI_PWM_CTRL_CLK_GATE BIT(6)
  18. #define SUNXI_PWM_CH0_PERIOD_MAX (0xffff)
  19. #define SUNXI_PWM_CH0_PERIOD_PRD(x) ((x & 0xffff) << 16)
  20. #define SUNXI_PWM_CH0_PERIOD_DUTY(x) ((x) & 0xffff)
  21. #define SUNXI_PWM_PERIOD_80PCT 0x04af03c0
  22. #if defined CONFIG_MACH_SUN4I || defined CONFIG_MACH_SUN5I
  23. #define SUNXI_PWM_PIN0 SUNXI_GPB(2)
  24. #define SUNXI_PWM_MUX SUN4I_GPB_PWM
  25. #endif
  26. #if defined CONFIG_MACH_SUN6I
  27. #define SUNXI_PWM_PIN0 SUNXI_GPH(13)
  28. #define SUNXI_PWM_MUX SUN6I_GPH_PWM
  29. #endif
  30. #if defined CONFIG_MACH_SUN8I_A23 || defined CONFIG_MACH_SUN8I_A33
  31. #define SUNXI_PWM_PIN0 SUNXI_GPH(0)
  32. #define SUNXI_PWM_MUX SUN8I_GPH_PWM
  33. #endif
  34. struct sunxi_pwm {
  35. u32 ctrl;
  36. u32 ch0_period;
  37. };
  38. #endif