* [PATCH v3 net-next] net: dsa: b53: mmap: Add device tree support
@ 2021-03-17 9:23 Álvaro Fernández Rojas
2021-03-18 21:40 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 2+ messages in thread
From: Álvaro Fernández Rojas @ 2021-03-17 9:23 UTC (permalink / raw)
To: jonas.gorski, Florian Fainelli, Andrew Lunn, Vivien Didelot,
Vladimir Oltean, David S. Miller, Jakub Kicinski, netdev,
linux-kernel
Cc: Álvaro Fernández Rojas
Add device tree support to b53_mmap.c while keeping platform devices support.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
drivers/net/dsa/b53/b53_mmap.c | 55 ++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c
index c628d0980c0b..82680e083cc2 100644
--- a/drivers/net/dsa/b53/b53_mmap.c
+++ b/drivers/net/dsa/b53/b53_mmap.c
@@ -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_ops = {
.write64 = b53_mmap_write64,
};
+static int b53_mmap_probe_of(struct platform_device *pdev,
+ struct b53_platform_data **ppdata)
+{
+ 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;
+
+ mem = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(mem))
+ return PTR_ERR(mem);
+
+ pdata = devm_kzalloc(dev, sizeof(struct b53_platform_data),
+ GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ pdata->regs = mem;
+ pdata->chip_id = BCM63XX_DEVICE_ID;
+ pdata->big_endian = of_property_read_bool(np, "big-endian");
+
+ of_ports = of_get_child_by_name(np, "ports");
+ if (!of_ports) {
+ dev_err(dev, "no ports child node found\n");
+ return -EINVAL;
+ }
+
+ for_each_available_child_of_node(of_ports, of_port) {
+ u32 reg;
+
+ if (of_property_read_u32(of_port, "reg", ®))
+ continue;
+
+ if (reg < B53_CPU_PORT)
+ pdata->enabled_ports |= BIT(reg);
+ }
+
+ of_node_put(of_ports);
+ *ppdata = pdata;
+
+ return 0;
+}
+
static int b53_mmap_probe(struct platform_device *pdev)
{
+ struct device_node *np = pdev->dev.of_node;
struct b53_platform_data *pdata = pdev->dev.platform_data;
struct b53_mmap_priv *priv;
struct b53_device *dev;
+ 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;
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v3 net-next] net: dsa: b53: mmap: Add device tree support
2021-03-17 9:23 [PATCH v3 net-next] net: dsa: b53: mmap: Add device tree support Álvaro Fernández Rojas
@ 2021-03-18 21:40 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-03-18 21:40 UTC (permalink / raw)
To: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas_=3Cnoltari=40gmail=2Ecom=3E?=
Cc: jonas.gorski, f.fainelli, andrew, vivien.didelot, olteanv, davem,
kuba, netdev, linux-kernel
Hello:
This patch was applied to netdev/net-next.git (refs/heads/master):
On Wed, 17 Mar 2021 10:23:17 +0100 you wrote:
> Add device tree support to b53_mmap.c while keeping platform devices support.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
> drivers/net/dsa/b53/b53_mmap.c | 55 ++++++++++++++++++++++++++++++++++
> 1 file changed, 55 insertions(+)
Here is the summary with links:
- [v3,net-next] net: dsa: b53: mmap: Add device tree support
https://git.kernel.org/netdev/net-next/c/a5538a777b73
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-03-18 21:40 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-17 9:23 [PATCH v3 net-next] net: dsa: b53: mmap: Add device tree support Álvaro Fernández Rojas
2021-03-18 21:40 ` patchwork-bot+netdevbpf
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).