From: Peter Mamonov <pmamonov@gmail.com>
To: barebox@lists.infradead.org
Cc: Peter Mamonov <pmamonov@gmail.com>
Subject: [PATCH] ata: intf_platform_ide: add OF bindings
Date: Thu, 3 Sep 2015 16:38:46 +0300 [thread overview]
Message-ID: <1441287526-2077-1-git-send-email-pmamonov@gmail.com> (raw)
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;
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) {
+ 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
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next reply other threads:[~2015-09-03 13:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 13:38 Peter Mamonov [this message]
2015-09-03 14:24 ` Antony Pavlov
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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