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Merge tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

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Pull pwm updates from Thierry Reding:
 "Quite a large number of conversions this time around, courtesy of Uwe
  who has been working tirelessly on these. No drivers of the legacy API
  are left at this point, so as a next step the old API can be removed.

  Support is added for a few new devices such as the Xilinx AXI timer-
  based PWMs and the PWM IP found on Sunplus SoCs.

  Other than that, there's a number of fixes, cleanups and optimizations"

* tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (43 commits)
  pwm: pwm-cros-ec: Add channel type support
  dt-bindings: google,cros-ec-pwm: Add the new -type compatible
  dt-bindings: Add mfd/cros_ec definitions
  pwm: Document that the pinstate of a disabled PWM isn't reliable
  pwm: twl-led: Implement .apply() callback
  pwm: lpc18xx: Implement .apply() callback
  pwm: mediatek: Implement .apply() callback
  pwm: lpc32xx: Implement .apply() callback
  pwm: tegra: Implement .apply() callback
  pwm: stmpe: Implement .apply() callback
  pwm: sti: Implement .apply() callback
  pwm: pwm-mediatek: Add support for MediaTek Helio X10 MT6795
  dt-bindings: pwm: pwm-mediatek: Add documentation for MT6795 SoC
  pwm: tegra: Optimize period calculation
  pwm: renesas-tpu: Improve precision of period and duty_cycle calculation
  pwm: renesas-tpu: Improve maths to compute register settings
  pwm: renesas-tpu: Rename variables to match the usual naming
  pwm: renesas-tpu: Implement .apply() callback
  pwm: renesas-tpu: Make use of devm functions
  pwm: renesas-tpu: Make use of dev_err_probe()
  ...
This commit is contained in:
Linus Torvalds
2022-06-01 10:49:11 -07:00
parent 68e6134bb7 3d593b6e80
commit 8eca6b0a64
33 changed files with 1562 additions and 371 deletions
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73
include/clocksource/timer-xilinx.h Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2021 Sean Anderson <sean.anderson@seco.com>
*/
#ifndef XILINX_TIMER_H
#define XILINX_TIMER_H
#include <linux/compiler.h>
#define TCSR0 0x00
#define TLR0 0x04
#define TCR0 0x08
#define TCSR1 0x10
#define TLR1 0x14
#define TCR1 0x18
#define TCSR_MDT BIT(0)
#define TCSR_UDT BIT(1)
#define TCSR_GENT BIT(2)
#define TCSR_CAPT BIT(3)
#define TCSR_ARHT BIT(4)
#define TCSR_LOAD BIT(5)
#define TCSR_ENIT BIT(6)
#define TCSR_ENT BIT(7)
#define TCSR_TINT BIT(8)
#define TCSR_PWMA BIT(9)
#define TCSR_ENALL BIT(10)
#define TCSR_CASC BIT(11)
struct clk;
struct device_node;
struct regmap;
/**
* struct xilinx_timer_priv - Private data for Xilinx AXI timer drivers
* @map: Regmap of the device, possibly with an offset
* @clk: Parent clock
* @max: Maximum value of the counters
*/
struct xilinx_timer_priv {
struct regmap *map;
struct clk *clk;
u32 max;
};
/**
* xilinx_timer_tlr_cycles() - Calculate the TLR for a period specified
* in clock cycles
* @priv: The timer's private data
* @tcsr: The value of the TCSR register for this counter
* @cycles: The number of cycles in this period
*
* Callers of this function MUST ensure that @cycles is representable as
* a TLR.
*
* Return: The calculated value for TLR
*/
u32 xilinx_timer_tlr_cycles(struct xilinx_timer_priv *priv, u32 tcsr,
u64 cycles);
/**
* xilinx_timer_get_period() - Get the current period of a counter
* @priv: The timer's private data
* @tlr: The value of TLR for this counter
* @tcsr: The value of TCSR for this counter
*
* Return: The period, in ns
*/
unsigned int xilinx_timer_get_period(struct xilinx_timer_priv *priv,
u32 tlr, u32 tcsr);
#endif /* XILINX_TIMER_H */