linux-kernel - Re: [PATCH v1 1/4] pps: generators: tio: split pps_gen

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Message-ID: <20afd83b-89d2-4bae-ac49-8c5dc9a9dc84@enneenne.com>
Date: Wed, 26 Feb 2025 08:50:06 +0100
From: Rodolfo Giometti <giometti@...eenne.com>
To: Raag Jadav <raag.jadav@...el.com>, lee@...nel.org,
 gregkh@...uxfoundation.org, andriy.shevchenko@...ux.intel.com,
 raymond.tan@...el.com
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/4] pps: generators: tio: split pps_gen_tio.h

On 26/02/25 07:15, Raag Jadav wrote:
> Split macros and structure definition to header file for better
> maintainability.
> 
> Signed-off-by: Raag Jadav <raag.jadav@...el.com>

Acked-by: Rodolfo Giometti <giometti@...eenne.com>

> ---
>   drivers/pps/generators/pps_gen_tio.c | 30 +------------------
>   drivers/pps/generators/pps_gen_tio.h | 45 ++++++++++++++++++++++++++++
>   2 files changed, 46 insertions(+), 29 deletions(-)
>   create mode 100644 drivers/pps/generators/pps_gen_tio.h
> 
> diff --git a/drivers/pps/generators/pps_gen_tio.c b/drivers/pps/generators/pps_gen_tio.c
> index 6c46b46c66cd..7f2aab1219af 100644
> --- a/drivers/pps/generators/pps_gen_tio.c
> +++ b/drivers/pps/generators/pps_gen_tio.c
> @@ -5,8 +5,6 @@
>    * Copyright (C) 2024 Intel Corporation
>    */
>   
> -#include <linux/bitfield.h>
> -#include <linux/bits.h>
>   #include <linux/cleanup.h>
>   #include <linux/container_of.h>
>   #include <linux/device.h>
> @@ -21,33 +19,7 @@
>   
>   #include <asm/cpu_device_id.h>
>   
> -#define TIOCTL			0x00
> -#define TIOCOMPV		0x10
> -#define TIOEC			0x30
> -
> -/* Control Register */
> -#define TIOCTL_EN			BIT(0)
> -#define TIOCTL_DIR			BIT(1)
> -#define TIOCTL_EP			GENMASK(3, 2)
> -#define TIOCTL_EP_RISING_EDGE		FIELD_PREP(TIOCTL_EP, 0)
> -#define TIOCTL_EP_FALLING_EDGE		FIELD_PREP(TIOCTL_EP, 1)
> -#define TIOCTL_EP_TOGGLE_EDGE		FIELD_PREP(TIOCTL_EP, 2)
> -
> -/* Safety time to set hrtimer early */
> -#define SAFE_TIME_NS			(10 * NSEC_PER_MSEC)
> -
> -#define MAGIC_CONST			(NSEC_PER_SEC - SAFE_TIME_NS)
> -#define ART_HW_DELAY_CYCLES		2
> -
> -struct pps_tio {
> -	struct pps_gen_source_info gen_info;
> -	struct pps_gen_device *pps_gen;
> -	struct hrtimer timer;
> -	void __iomem *base;
> -	u32 prev_count;
> -	spinlock_t lock;
> -	struct device *dev;
> -};
> +#include "pps_gen_tio.h"
>   
>   static inline u32 pps_tio_read(u32 offset, struct pps_tio *tio)
>   {
> diff --git a/drivers/pps/generators/pps_gen_tio.h b/drivers/pps/generators/pps_gen_tio.h
> new file mode 100644
> index 000000000000..78d4d7c25221
> --- /dev/null
> +++ b/drivers/pps/generators/pps_gen_tio.h
> @@ -0,0 +1,45 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Intel PPS signal Generator Driver
> + *
> + * Copyright (C) 2025 Intel Corporation
> + */
> +
> +#ifndef _PPS_GEN_TIO_H_
> +#define _PPS_GEN_TIO_H_
> +
> +#include <linux/bitfield.h>
> +#include <linux/bits.h>
> +#include <linux/hrtimer.h>
> +#include <linux/pps_gen_kernel.h>
> +#include <linux/spinlock_types.h>
> +
> +#define TIOCTL			0x00
> +#define TIOCOMPV		0x10
> +#define TIOEC			0x30
> +
> +/* Control Register */
> +#define TIOCTL_EN			BIT(0)
> +#define TIOCTL_DIR			BIT(1)
> +#define TIOCTL_EP			GENMASK(3, 2)
> +#define TIOCTL_EP_RISING_EDGE		FIELD_PREP(TIOCTL_EP, 0)
> +#define TIOCTL_EP_FALLING_EDGE		FIELD_PREP(TIOCTL_EP, 1)
> +#define TIOCTL_EP_TOGGLE_EDGE		FIELD_PREP(TIOCTL_EP, 2)
> +
> +/* Safety time to set hrtimer early */
> +#define SAFE_TIME_NS			(10 * NSEC_PER_MSEC)
> +
> +#define MAGIC_CONST			(NSEC_PER_SEC - SAFE_TIME_NS)
> +#define ART_HW_DELAY_CYCLES		2
> +
> +struct pps_tio {
> +	struct pps_gen_source_info gen_info;
> +	struct pps_gen_device *pps_gen;
> +	struct hrtimer timer;
> +	void __iomem *base;
> +	u32 prev_count;
> +	spinlock_t lock;
> +	struct device *dev;
> +};
> +
> +#endif /* _PPS_GEN_TIO_H_ */

-- 
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