From: Antony Pavlov <antonynpavlov@gmail.com>
To: Peter Mamonov <pmamonov@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] ata: intf_platform_ide: add OF bindings
Date: Thu, 3 Sep 2015 17:24:55 +0300 [thread overview]
Message-ID: <20150903172455.586b781f0bab0f50bbe58585@gmail.com> (raw)
In-Reply-To: <1441287526-2077-1-git-send-email-pmamonov@gmail.com>
On Thu, 3 Sep 2015 16:38:46 +0300
Peter Mamonov <pmamonov@gmail.com> wrote:
> Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
> ---
> drivers/ata/intf_platform_ide.c | 35 +++++++++++++++++++++++++++++++++--
> 1 file changed, 33 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/ata/intf_platform_ide.c b/drivers/ata/intf_platform_ide.c
> index 0d392d8..f20e0e0 100644
> --- a/drivers/ata/intf_platform_ide.c
> +++ b/drivers/ata/intf_platform_ide.c
> @@ -29,6 +29,7 @@
> #include <ata_drive.h>
> #include <platform_ide.h>
> #include <linux/err.h>
> +#include <of.h>
>
> /**
> * Setup the register specific addresses for an ATA like divice
> @@ -85,10 +86,31 @@ static int platform_ide_probe(struct device_d *dev)
> void *reg_base, *alt_base = NULL;
> struct resource *reg, *alt;
> int mmio = 0;
> + struct device_node *dn = dev->device_node;
> + u32 tmp32;
Can we move dn and tmp32 declarations under 'if (pdata == NULL) {' ?
>
> if (pdata == NULL) {
> - dev_err(dev, "No platform data. Cannot continue\n");
> - return -EINVAL;
> + /* try to get platform data from the device tree */
> + if (dn == NULL) {
> + dev_err(dev, "No platform data. Cannot continue\n");
> + return -EINVAL;
> + }
> +
> + pdata = xzalloc(sizeof(struct ide_port_info));
> +
> + if (!pdata) {
xzalloc() can't return NULL.
Please drop this 'if' operator.
> + dev_err(dev, "Platform data allocation failed\n");
> + return -ENOMEM;
> + }
> + device_add_data(dev, pdata, sizeof(struct ide_port_info));
> +
> + if (of_property_read_bool(dn, "dataif-be"))
> + pdata->dataif_be = 1;
> +
> + if (of_property_read_u32(dn, "reg-shift", &tmp32) == 0)
> + pdata->ioport_shift = (unsigned)tmp32;
> +
> + dev->platform_data = pdata;
> }
>
> reg_base = dev_request_mem_region(dev, 0);
> @@ -136,9 +158,18 @@ static int platform_ide_probe(struct device_d *dev)
> return rc;
> }
>
> +static __maybe_unused struct of_device_id platform_ide_dt_ids[] = {
> + {
> + .compatible = "ata-generic",
> + }, {
> + /* sentinel */
> + }
> +};
> +
> static struct driver_d platform_ide_driver = {
> .name = "ide_intf",
> .probe = platform_ide_probe,
> + .of_compatible = DRV_OF_COMPAT(platform_ide_dt_ids),
> };
> device_platform_driver(platform_ide_driver);
>
> --
> 2.1.4
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
--
--
Best regards,
Antony Pavlov
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next prev parent reply other threads:[~2015-09-03 14:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 13:38 Peter Mamonov
2015-09-03 14:24 ` Antony Pavlov [this message]
2015-09-03 15:33 ` Peter Mamonov
2015-09-03 16:04 ` Peter Mamonov
2015-09-03 18:13 ` Sascha Hauer
2015-09-07 15:44 ` [PATCHv2] " Peter Mamonov
2015-09-07 15:53 ` Lucas Stach
2015-09-07 16:43 ` [PATCHv3] " Peter Mamonov
2015-09-09 6:54 ` Sascha Hauer
2015-09-03 15:46 ` [PATCH] " Lucas Stach
2015-09-03 16:31 ` Antony Pavlov
2015-09-03 18:16 ` Sascha Hauer
2015-09-04 10:15 ` Peter Mamonov
2015-09-04 9:40 ` Peter Mamonov
2015-09-04 10:23 ` Lucas Stach
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