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bmips: backport b53 mmap device tree support

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This patch has been accepted upstream for linux v5.13.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas
2021-03-19 10:59:07 +01:00
parent a139ab1b82
commit df26c29629
1 changed files with 23 additions and 13 deletions
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36
target/linux/bmips/patches-5.10/501-net-dsa-b53-mmap-Add-device-tree-support.patch → target/linux/bmips/patches-5.10/051-v5.13-net-dsa-b53-mmap-Add-device-tree-support.patch
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@@ -1,7 +1,7 @@
From f5419e7f362ae1c462baf28a2da7360267f8e4f9 Mon Sep 17 00:00:00 2001
From a5538a777b73b35750ed1ffff8c1ef539e861624 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Mon, 1 Mar 2021 07:32:32 +0100
Subject: [PATCH 2/3] net: dsa: b53: mmap: Add device tree support
Date: Wed, 17 Mar 2021 10:23:17 +0100
Subject: [PATCH] net: dsa: b53: mmap: Add device tree support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
@@ -9,22 +9,31 @@ Content-Transfer-Encoding: 8bit
Add device tree support to b53_mmap.c while keeping platform devices support.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/b53/b53_mmap.c | 36 ++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
drivers/net/dsa/b53/b53_mmap.c | 55 ++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
--- a/drivers/net/dsa/b53/b53_mmap.c
+++ b/drivers/net/dsa/b53/b53_mmap.c
@@ -228,12 +228,64 @@ static const struct b53_io_ops b53_mmap_
@@ -16,6 +16,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#include <linux/bits.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
@@ -228,11 +229,65 @@ static const struct b53_io_ops b53_mmap_
.write64 = b53_mmap_write64,
};
+static int b53_mmap_probe_of(struct platform_device *pdev,
+ struct b53_platform_data **ppdata)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *of_ports, *of_port;
+ struct device *dev = &pdev->dev;
+ struct b53_platform_data *pdata;
+ void __iomem *mem;
+
@@ -57,6 +66,7 @@ Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+ pdata->enabled_ports |= BIT(reg);
+ }
+
+ of_node_put(of_ports);
+ *ppdata = pdata;
+
+ return 0;
@@ -68,15 +78,15 @@ Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
struct b53_platform_data *pdata = pdev->dev.platform_data;
struct b53_mmap_priv *priv;
struct b53_device *dev;
+ if (np) {
+ int ret = b53_mmap_probe_of(pdev, &pdata);
+ int ret;
+
+ if (!pdata && np) {
+ ret = b53_mmap_probe_of(pdev, &pdata);
+ if (ret) {
+ dev_err(&pdev->dev, "OF probe error\n");
+ return ret;
+ }
+ }
+
if (!pdata)
return -EINVAL;