From: Hans de Goede <hdegoede@redhat.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Maximilian Luz <luzmaximilian@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
linux-serial@vger.kernel.org
Cc: Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
Mark Gross <mgross@linux.intel.com>,
Rob Herring <robh@kernel.org>, Jiri Slaby <jirislaby@kernel.org>
Subject: Re: [PATCH v1 1/5] serdev: Split and export serdev_acpi_get_uart_resource()
Date: Wed, 4 Aug 2021 10:08:01 +0200 [thread overview]
Message-ID: <035d2579-f64c-b5c2-45ff-4421ad7db6ca@redhat.com> (raw)
In-Reply-To: <20210803192905.72246-1-andriy.shevchenko@linux.intel.com>
Hi,
On 8/3/21 9:29 PM, Andy Shevchenko wrote:
> The same as for I²C Serial Bus resource split and export
> serdev_acpi_get_uart_resource(). We have already 3 users
> one of which is converted here.
>
> Rationale of this is to consolidate parsing UART Serial Bus
> resource in one place as it's done, e.g., for I²C Serial Bus.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
*for this patch*
We do need to talk about how to merge this series, I've
NACK-ed patches 3/5 and 4/5 (see my reply there) so that
leaves just 2/5 as depending on this one. I believe it
would be easiest to just merge 1/5 + 2/5 to the tree
which caries serdev patches, which I guess is Greg's
tty tree ?
Greg can you pick up 1/5 and 2/5 ?
Regards,
Hans
> ---
> drivers/tty/serdev/core.c | 36 +++++++++++++++++++++++++++++-------
> include/linux/serdev.h | 14 ++++++++++++++
> 2 files changed, 43 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
> index 92498961fd92..436e3d1ba92c 100644
> --- a/drivers/tty/serdev/core.c
> +++ b/drivers/tty/serdev/core.c
> @@ -562,23 +562,45 @@ struct acpi_serdev_lookup {
> int index;
> };
>
> +/**
> + * serdev_acpi_get_uart_resource - Gets UARTSerialBus resource if type matches
> + * @ares: ACPI resource
> + * @uart: Pointer to UARTSerialBus resource will be returned here
> + *
> + * Checks if the given ACPI resource is of type UARTSerialBus.
> + * In this case, returns a pointer to it to the caller.
> + *
> + * Returns true if resource type is of UARTSerialBus, otherwise false.
> + */
> +bool serdev_acpi_get_uart_resource(struct acpi_resource *ares,
> + struct acpi_resource_uart_serialbus **uart)
> +{
> + struct acpi_resource_uart_serialbus *sb;
> +
> + if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
> + return false;
> +
> + sb = &ares->data.uart_serial_bus;
> + if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_UART)
> + return false;
> +
> + *uart = sb;
> + return true;
> +}
> +EXPORT_SYMBOL_GPL(serdev_acpi_get_uart_resource);
> +
> static int acpi_serdev_parse_resource(struct acpi_resource *ares, void *data)
> {
> struct acpi_serdev_lookup *lookup = data;
> struct acpi_resource_uart_serialbus *sb;
> acpi_status status;
>
> - if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
> - return 1;
> -
> - if (ares->data.common_serial_bus.type != ACPI_RESOURCE_SERIAL_TYPE_UART)
> + if (!serdev_acpi_get_uart_resource(ares, &sb))
> return 1;
>
> if (lookup->index != -1 && lookup->n++ != lookup->index)
> return 1;
>
> - sb = &ares->data.uart_serial_bus;
> -
> status = acpi_get_handle(lookup->device_handle,
> sb->resource_source.string_ptr,
> &lookup->controller_handle);
> @@ -586,7 +608,7 @@ static int acpi_serdev_parse_resource(struct acpi_resource *ares, void *data)
> return 1;
>
> /*
> - * NOTE: Ideally, we would also want to retreive other properties here,
> + * NOTE: Ideally, we would also want to retrieve other properties here,
> * once setting them before opening the device is supported by serdev.
> */
>
> diff --git a/include/linux/serdev.h b/include/linux/serdev.h
> index 9f14f9c12ec4..3368c261ab62 100644
> --- a/include/linux/serdev.h
> +++ b/include/linux/serdev.h
> @@ -327,4 +327,18 @@ static inline int serdev_tty_port_unregister(struct tty_port *port)
> }
> #endif /* CONFIG_SERIAL_DEV_CTRL_TTYPORT */
>
> +struct acpi_resource;
> +struct acpi_resource_uart_serialbus;
> +
> +#ifdef CONFIG_ACPI
> +bool serdev_acpi_get_uart_resource(struct acpi_resource *ares,
> + struct acpi_resource_uart_serialbus **uart);
> +#else
> +static inline bool serdev_acpi_get_uart_resource(struct acpi_resource *ares,
> + struct acpi_resource_uart_serialbus **uart)
> +{
> + return false;
> +}
> +#endif /* CONFIG_ACPI */
> +
> #endif /*_LINUX_SERDEV_H */
>
next prev parent reply other threads:[~2021-08-04 8:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-03 19:29 [PATCH v1 1/5] serdev: Split and export serdev_acpi_get_uart_resource() Andy Shevchenko
2021-08-03 19:29 ` [PATCH v1 2/5] platform/surface: aggregator: Use serdev_acpi_get_uart_resource() helper Andy Shevchenko
2021-08-03 19:47 ` Maximilian Luz
2021-08-03 19:29 ` [PATCH v1 3/5] Bluetooth: hci_bcm: " Andy Shevchenko
2021-08-04 8:12 ` Hans de Goede
2021-08-04 8:42 ` Andy Shevchenko
2021-08-04 9:35 ` Hans de Goede
2021-08-03 19:29 ` [PATCH v1 4/5] Bluetooth: hci_bcm: Use acpi_gpio_get_*_resource() helpers Andy Shevchenko
2021-08-04 8:04 ` Hans de Goede
2021-08-03 19:29 ` [PATCH v1 5/5] Bluetooth: hci_bcm: Fix kernel doc comments Andy Shevchenko
2021-08-03 20:04 ` [v1,1/5] serdev: Split and export serdev_acpi_get_uart_resource() bluez.test.bot
2021-08-03 20:32 ` Andy Shevchenko
2021-08-04 8:08 ` Hans de Goede [this message]
2021-08-04 12:07 ` [PATCH v1 1/5] " Andy Shevchenko
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