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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 3/5] Bluetooth: hci_bcm: Use serdev_acpi_get_uart_resource() helper
Date: Wed, 4 Aug 2021 10:12:18 +0200	[thread overview]
Message-ID: <87778067-5b45-8e83-b624-545b39a0e00d@redhat.com> (raw)
In-Reply-To: <20210803192905.72246-3-andriy.shevchenko@linux.intel.com>

Hi,

On 8/3/21 9:29 PM, Andy Shevchenko wrote:
> serdev provides a generic helper to get UART Serial Bus resources.
> Use it instead of open coded variant.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/bluetooth/hci_bcm.c | 15 ++++++---------
>  1 file changed, 6 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
> index 3cd57fc56ade..16f854ac19b6 100644
> --- a/drivers/bluetooth/hci_bcm.c
> +++ b/drivers/bluetooth/hci_bcm.c
> @@ -899,9 +899,9 @@ static const struct acpi_gpio_mapping acpi_bcm_int_first_gpios[] = {
>  static int bcm_resource(struct acpi_resource *ares, void *data)
>  {
>  	struct bcm_device *dev = data;
> +	struct acpi_resource_uart_serialbus *uart;
>  	struct acpi_resource_extended_irq *irq;
>  	struct acpi_resource_gpio *gpio;
> -	struct acpi_resource_uart_serialbus *sb;
>  
>  	switch (ares->type) {
>  	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
> @@ -920,18 +920,15 @@ static int bcm_resource(struct acpi_resource *ares, void *data)
>  		dev->gpio_count++;
>  		break;
>  
> -	case ACPI_RESOURCE_TYPE_SERIAL_BUS:
> -		sb = &ares->data.uart_serial_bus;
> -		if (sb->type == ACPI_RESOURCE_SERIAL_TYPE_UART) {
> -			dev->init_speed = sb->default_baud_rate;
> -			dev->oper_speed = 4000000;
> -		}
> -		break;
> -
>  	default:
>  		break;
>  	}
>  
> +	if (serdev_acpi_get_uart_resource(ares, &uart)) {
> +		dev->init_speed = uart->default_baud_rate;
> +		dev->oper_speed = 4000000;
> +	}
> +

You are replacing a nice switch-case which handles all relevant resource
types with still having a switch-case + a separate if .. else if .. else if ...
(also taking patch 4/5 into account).

This does not help the readability of this code at all IMHO, so NACK
from me for this patch as well as for 4/5.

Regards,

Hans


  reply	other threads:[~2021-08-04  8:12 UTC|newest]

Thread overview: 12+ 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 [this message]
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
2021-08-04  8:08 ` [PATCH v1 1/5] serdev: Split and export serdev_acpi_get_uart_resource() Hans de Goede
2021-08-04 12:07   ` Andy Shevchenko

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