From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Raul E Rangel <rrangel@chromium.org>
Cc: ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
linux-input <linux-input@vger.kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Hans de Goede <hdegoede@redhat.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Tim Van Patten <timvp@google.com>,
Linus Walleij <linus.walleij@linaro.org>,
"jingle.wu" <jingle.wu@emc.com.tw>,
Dan Williams <dan.j.williams@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Len Brown <lenb@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Terry Bowman <terry.bowman@amd.com>, Tom Rix <trix@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
llvm@lists.linux.dev
Subject: Re: [PATCH v6 06/13] ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags
Date: Thu, 29 Sep 2022 21:17:50 +0200 [thread overview]
Message-ID: <CAJZ5v0izHjb8vE0ALyYo9yMOExdpCzG8f7-d5SpQnftqJfTEig@mail.gmail.com> (raw)
In-Reply-To: <20220929093200.v6.6.I8092e417a8152475d13d8d638eb4c5d8ea12ac7b@changeid>
On Thu, Sep 29, 2022 at 6:19 PM Raul E Rangel <rrangel@chromium.org> wrote:
>
> ACPI IRQ/Interrupt resources contain a bit that describes if the
> interrupt should wake the system. This change exposes that bit via
> a new IORESOURCE_IRQ_WAKECAPABLE flag. Drivers should check this flag
I would call this IORESOURCE_IRQ_WAKE which is (a) simpler and easier
to read and (b) it sort of matches the "wakeirq" naming convention.
This is not a big deal if you insist on this name and for a good
reason, but just something I would do differently.
The patch LGTM otherwise.
> before arming an IRQ to wake the system.
>
> Signed-off-by: Raul E Rangel <rrangel@chromium.org>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>
> ---
>
> (no changes since v5)
>
> Changes in v5:
> - Removed clang-format white space changes
>
> Changes in v4:
> - Added Reviewed-by
> - Reformatted with 96 char limit
>
> Changes in v3:
> - Fixed bad indent
>
> Changes in v2:
> - Added ability to extract wake bit from Interrupt/IRQ resources
>
> drivers/acpi/irq.c | 8 +++++---
> drivers/acpi/resource.c | 16 +++++++++++-----
> drivers/pnp/pnpacpi/rsparser.c | 7 ++++---
> include/linux/acpi.h | 2 +-
> include/linux/ioport.h | 3 ++-
> 5 files changed, 23 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
> index dabe45eba055d1f..4bb5ab33a5ceb10 100644
> --- a/drivers/acpi/irq.c
> +++ b/drivers/acpi/irq.c
> @@ -147,6 +147,7 @@ struct acpi_irq_parse_one_ctx {
> * @polarity: polarity attributes of hwirq
> * @polarity: polarity attributes of hwirq
> * @shareable: shareable attributes of hwirq
> + * @wake_capable: wake capable attribute of hwirq
> * @ctx: acpi_irq_parse_one_ctx updated by this function
> *
> * Description:
> @@ -156,12 +157,13 @@ struct acpi_irq_parse_one_ctx {
> static inline void acpi_irq_parse_one_match(struct fwnode_handle *fwnode,
> u32 hwirq, u8 triggering,
> u8 polarity, u8 shareable,
> + u8 wake_capable,
> struct acpi_irq_parse_one_ctx *ctx)
> {
> if (!fwnode)
> return;
> ctx->rc = 0;
> - *ctx->res_flags = acpi_dev_irq_flags(triggering, polarity, shareable);
> + *ctx->res_flags = acpi_dev_irq_flags(triggering, polarity, shareable, wake_capable);
> ctx->fwspec->fwnode = fwnode;
> ctx->fwspec->param[0] = hwirq;
> ctx->fwspec->param[1] = acpi_dev_get_irq_type(triggering, polarity);
> @@ -204,7 +206,7 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
> fwnode = acpi_get_gsi_domain_id(irq->interrupts[ctx->index]);
> acpi_irq_parse_one_match(fwnode, irq->interrupts[ctx->index],
> irq->triggering, irq->polarity,
> - irq->shareable, ctx);
> + irq->shareable, irq->wake_capable, ctx);
> return AE_CTRL_TERMINATE;
> case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
> eirq = &ares->data.extended_irq;
> @@ -218,7 +220,7 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
> eirq->interrupts[ctx->index]);
> acpi_irq_parse_one_match(fwnode, eirq->interrupts[ctx->index],
> eirq->triggering, eirq->polarity,
> - eirq->shareable, ctx);
> + eirq->shareable, eirq->wake_capable, ctx);
> return AE_CTRL_TERMINATE;
> }
>
> diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
> index 510cdec375c4d88..81733369f4c1de0 100644
> --- a/drivers/acpi/resource.c
> +++ b/drivers/acpi/resource.c
> @@ -336,8 +336,9 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space);
> * @triggering: Triggering type as provided by ACPI.
> * @polarity: Interrupt polarity as provided by ACPI.
> * @shareable: Whether or not the interrupt is shareable.
> + * @wake_capable: Wake capability as provided by ACPI.
> */
> -unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
> +unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable)
> {
> unsigned long flags;
>
> @@ -351,6 +352,9 @@ unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
> if (shareable == ACPI_SHARED)
> flags |= IORESOURCE_IRQ_SHAREABLE;
>
> + if (wake_capable == ACPI_WAKE_CAPABLE)
> + flags |= IORESOURCE_IRQ_WAKECAPABLE;
> +
> return flags | IORESOURCE_IRQ;
> }
> EXPORT_SYMBOL_GPL(acpi_dev_irq_flags);
> @@ -442,7 +446,7 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
>
> static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
> u8 triggering, u8 polarity, u8 shareable,
> - bool check_override)
> + u8 wake_capable, bool check_override)
> {
> int irq, p, t;
>
> @@ -475,7 +479,7 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
> }
> }
>
> - res->flags = acpi_dev_irq_flags(triggering, polarity, shareable);
> + res->flags = acpi_dev_irq_flags(triggering, polarity, shareable, wake_capable);
> irq = acpi_register_gsi(NULL, gsi, triggering, polarity);
> if (irq >= 0) {
> res->start = irq;
> @@ -523,7 +527,8 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
> }
> acpi_dev_get_irqresource(res, irq->interrupts[index],
> irq->triggering, irq->polarity,
> - irq->shareable, true);
> + irq->shareable, irq->wake_capable,
> + true);
> break;
> case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
> ext_irq = &ares->data.extended_irq;
> @@ -534,7 +539,8 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
> if (is_gsi(ext_irq))
> acpi_dev_get_irqresource(res, ext_irq->interrupts[index],
> ext_irq->triggering, ext_irq->polarity,
> - ext_irq->shareable, false);
> + ext_irq->shareable, ext_irq->wake_capable,
> + false);
> else
> irqresource_disabled(res, 0);
> break;
> diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
> index da78dc77aed32e4..4f05f610391b006 100644
> --- a/drivers/pnp/pnpacpi/rsparser.c
> +++ b/drivers/pnp/pnpacpi/rsparser.c
> @@ -206,7 +206,8 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
> if (i >= 0) {
> flags = acpi_dev_irq_flags(gpio->triggering,
> gpio->polarity,
> - gpio->shareable);
> + gpio->shareable,
> + gpio->wake_capable);
> } else {
> flags = IORESOURCE_DISABLED;
> }
> @@ -315,7 +316,7 @@ static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
> if (p->interrupts[i])
> __set_bit(p->interrupts[i], map.bits);
>
> - flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable);
> + flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable, p->wake_capable);
> pnp_register_irq_resource(dev, option_flags, &map, flags);
> }
>
> @@ -339,7 +340,7 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
> }
> }
>
> - flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable);
> + flags = acpi_dev_irq_flags(p->triggering, p->polarity, p->shareable, p->wake_capable);
> pnp_register_irq_resource(dev, option_flags, &map, flags);
> }
>
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index cd7371a5f2839bd..ea2efbdbeee5116 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -495,7 +495,7 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares,
> struct resource_win *win);
> bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
> struct resource_win *win);
> -unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
> +unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
> unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
> bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
> struct resource *res);
> diff --git a/include/linux/ioport.h b/include/linux/ioport.h
> index 616b683563a9704..3baeea4d903bfd1 100644
> --- a/include/linux/ioport.h
> +++ b/include/linux/ioport.h
> @@ -79,7 +79,8 @@ struct resource {
> #define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
> #define IORESOURCE_IRQ_LOWLEVEL (1<<3)
> #define IORESOURCE_IRQ_SHAREABLE (1<<4)
> -#define IORESOURCE_IRQ_OPTIONAL (1<<5)
> +#define IORESOURCE_IRQ_OPTIONAL (1<<5)
> +#define IORESOURCE_IRQ_WAKECAPABLE (1<<6)
>
> /* PnP DMA specific bits (IORESOURCE_BITS) */
> #define IORESOURCE_DMA_TYPE_MASK (3<<0)
> --
> 2.37.3.998.g577e59143f-goog
>
next prev parent reply other threads:[~2022-09-29 19:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-29 16:19 [PATCH v6 00/13] acpi: i2c: Use SharedAndWake and ExclusiveAndWake to enable wake irq Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 01/13] HID: i2c-hid: Use PM subsystem to manage " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 02/13] Input: elan_i2c - " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 03/13] Input: elants_i2c " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 04/13] Input: raydium_ts_i2c " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 05/13] gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 06/13] ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags Raul E Rangel
2022-09-29 19:17 ` Rafael J. Wysocki [this message]
2022-09-29 19:27 ` Raul Rangel
2022-09-29 19:38 ` Rafael J. Wysocki
2022-09-29 21:20 ` Raul Rangel
2022-09-29 23:22 ` Dmitry Torokhov
2022-09-30 17:13 ` Rafael J. Wysocki
2022-09-30 17:42 ` Andy Shevchenko
2022-09-30 17:54 ` Rafael J. Wysocki
2022-09-30 17:55 ` Dmitry Torokhov
2022-10-15 16:56 ` Rafael J. Wysocki
2022-10-17 14:53 ` Raul Rangel
2022-11-07 18:36 ` Raul Rangel
2022-11-22 22:13 ` Dmitry Torokhov
2022-09-29 16:19 ` [PATCH v6 07/13] i2c: acpi: Use ACPI wake capability bit to set wake_irq Raul E Rangel
2022-10-01 22:51 ` Wolfram Sang
2022-09-29 16:19 ` [PATCH v6 08/13] ACPI: PM: Take wake IRQ into consideration when entering suspend-to-idle Raul E Rangel
2022-09-29 19:06 ` Rafael J. Wysocki
2022-09-29 16:19 ` [PATCH v6 09/13] HID: i2c-hid: acpi: Stop setting wakeup_capable Raul E Rangel
2022-11-21 14:49 ` Andy Shevchenko
2022-11-30 18:06 ` Raul Rangel
2023-01-12 19:57 ` Werner Sembach
2023-01-12 20:09 ` Limonciello, Mario
2022-09-29 16:19 ` [PATCH v6 10/13] HID: i2c-hid: Don't set wake_capable and wake_irq Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 11/13] Input: elan_i2c - " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 12/13] Input: elants_i2c " Raul E Rangel
2022-09-29 16:19 ` [PATCH v6 13/13] Input: raydium_ts_i2c " Raul E Rangel
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