Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Tue, 13 Jun 2023 22:11:36 +0300
From:   Serge Semin <fancer.lancer@gmail.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-acpi@vger.kernel.org, Hans de Goede <hdegoede@redhat.com>,
        Jens Axboe <axboe@kernel.dk>,
        Damien Le Moal <dlemoal@kernel.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Daniel Scally <djrscally@gmail.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>
Subject: Re: [PATCH v3 3/3] ata: ahci_platform: Make code agnostic to OF/ACPI
Message-ID: <20230613191136.2yol2kwyqtge3o4u@mobilestation>
References: <20230612161011.86871-1-andriy.shevchenko@linux.intel.com>
 <20230612161011.86871-4-andriy.shevchenko@linux.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230612161011.86871-4-andriy.shevchenko@linux.intel.com>
Precedence: bulk

On Mon, Jun 12, 2023 at 07:10:11PM +0300, Andy Shevchenko wrote:
> With the help of a new device_is_compatible() make the driver code
> agnostic to the OF/ACPI. This makes it neater. As a side effect
> the header inclusions is corrected (seems mod_devicetable.h was
> implicitly included).
> 
> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

C/P v2:
I don't think the driver will get to be fully agnostic after this
patch because for instance the ahci_platform_get_resources() method
directly uses the OF-available functions, walks over the OF subnodes,
touches the OF-properties, etc. So AFAICS in order to be fully OF/ACPI
agnostic the entire libahci_platform.o driver needs to be converted
too, but it's not trivial at all.

Anyway as a start this patch looks good.
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>

-Serge(y)

> ---
>  drivers/ata/ahci_platform.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
> index ab30c7138d73..81fc63f6b008 100644
> --- a/drivers/ata/ahci_platform.c
> +++ b/drivers/ata/ahci_platform.c
> @@ -9,14 +9,14 @@
>   */
>  
>  #include <linux/kernel.h>
> +#include <linux/mod_devicetable.h>
>  #include <linux/module.h>
>  #include <linux/pm.h>
>  #include <linux/device.h>
> -#include <linux/of_device.h>
>  #include <linux/platform_device.h>
> +#include <linux/property.h>
>  #include <linux/libata.h>
>  #include <linux/ahci_platform.h>
> -#include <linux/acpi.h>
>  #include <linux/pci_ids.h>
>  #include "ahci.h"
>  
> @@ -56,10 +56,10 @@ static int ahci_probe(struct platform_device *pdev)
>  	if (rc)
>  		return rc;
>  
> -	if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
> +	if (device_is_compatible(dev, "hisilicon,hisi-ahci"))
>  		hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
>  
> -	port = acpi_device_get_match_data(dev);
> +	port = device_get_match_data(dev);
>  	if (!port)
>  		port = &ahci_port_info;
>  
> -- 
> 2.40.0.1.gaa8946217a0b
> 
>