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generic: update nvmem cell mac-address-ascii support

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Instead of use mac-address-ascii in nvmem_get_mac_address
function, move it into of_get_mac_addr_nvmem function to
support more devices.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
This commit is contained in:
Chukun Pan 2023-04-06 20:21:03 +08:00 committed by Christian Marangi
parent 31c15813f9
commit 28ce677fa7
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GPG Key ID: AC001D09ADBFEAD7
2 changed files with 52 additions and 42 deletions
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47
target/linux/generic/hack-5.10/601-of_net-add-mac-address-ascii-support.patch
View File

@ -1,19 +1,19 @@
From: Yousong Zhou <yszhou4tech@gmail.com> From: Yousong Zhou <yszhou4tech@gmail.com>
Subject: [PATCH] ath79: add nvmem cell mac-address-ascii support Subject: [PATCH] of: net: add nvmem cell mac-address-ascii support
This is needed for devices with mac address stored in ascii format, e.g. This is needed for devices with mac address stored in ascii format,
HiWiFi HC6361 to be ported in the following patch. e.g. HiWiFi HC6361 to be ported in the following patch.
Submitted-by: Yousong Zhou <yszhou4tech@gmail.com> Submitted-by: Yousong Zhou <yszhou4tech@gmail.com>
--- ---
net/ethernet/eth.c | 83 ++++++++++++------ net/core/of_net.c | 83 ++++++++++++------
1 files changed, 72 insertions(+), 11 deletions(-) 1 files changed, 72 insertions(+), 11 deletions(-)
--- a/net/ethernet/eth.c --- a/drivers/of/of_net.c
+++ b/net/ethernet/eth.c +++ b/drivers/of/of_net.c
@@ -539,6 +539,63 @@ int eth_platform_get_mac_address(struct @@ -57,13 +57,70 @@ static int of_get_mac_addr(struct device
return -ENODEV;
} }
EXPORT_SYMBOL(eth_platform_get_mac_address);
+static void *nvmem_cell_get_mac_address(struct nvmem_cell *cell) +static void *nvmem_cell_get_mac_address(struct nvmem_cell *cell)
+{ +{
@ -72,35 +72,40 @@ Submitted-by: Yousong Zhou <yszhou4tech@gmail.com>
+ }, + },
+}; +};
+ +
/** static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr)
* Obtain the MAC address from an nvmem cell named 'mac-address' associated
* with given device.
@@ -550,21 +607,28 @@ EXPORT_SYMBOL(eth_platform_get_mac_addre
*/
int nvmem_get_mac_address(struct device *dev, void *addrbuf)
{ {
struct platform_device *pdev = of_find_device_by_node(np);
+ struct nvmem_cell_mac_address_property *property; + struct nvmem_cell_mac_address_property *property;
struct nvmem_cell *cell; struct nvmem_cell *cell;
const void *mac; const void *mac;
- size_t len; - size_t len;
+ int i; - int ret;
+ + int ret, i;
/* Try lookup by device first, there might be a nvmem_cell_lookup
* associated with a given device.
@@ -74,17 +131,26 @@ static int of_get_mac_addr_nvmem(struct
return ret;
}
- cell = of_nvmem_cell_get(np, "mac-address");
+ for (i = 0; i < ARRAY_SIZE(nvmem_cell_mac_address_properties); i++) { + for (i = 0; i < ARRAY_SIZE(nvmem_cell_mac_address_properties); i++) {
+ property = &nvmem_cell_mac_address_properties[i]; + property = &nvmem_cell_mac_address_properties[i];
+ cell = nvmem_cell_get(dev, property->name); + cell = of_nvmem_cell_get(np, property->name);
+ /* For -EPROBE_DEFER don't try other properties. We'll get back to this one. */ + /* For -EPROBE_DEFER don't try other properties.
+ * We'll get back to this one.
+ */
+ if (!IS_ERR(cell) || PTR_ERR(cell) == -EPROBE_DEFER) + if (!IS_ERR(cell) || PTR_ERR(cell) == -EPROBE_DEFER)
+ break; + break;
+ } + }
+
- cell = nvmem_cell_get(dev, "mac-address");
if (IS_ERR(cell)) if (IS_ERR(cell))
return PTR_ERR(cell); return PTR_ERR(cell);
- mac = nvmem_cell_read(cell, &len); - mac = nvmem_cell_read(cell, &len);
+ mac = property->read(cell); + mac = property->read(cell);
nvmem_cell_put(cell); nvmem_cell_put(cell);
-
if (IS_ERR(mac)) if (IS_ERR(mac))
return PTR_ERR(mac); return PTR_ERR(mac);

47
target/linux/generic/hack-5.15/601-of_net-add-mac-address-ascii-support.patch
View File

@ -1,19 +1,19 @@
From: Yousong Zhou <yszhou4tech@gmail.com> From: Yousong Zhou <yszhou4tech@gmail.com>
Subject: [PATCH] ath79: add nvmem cell mac-address-ascii support Subject: [PATCH] of: net: add nvmem cell mac-address-ascii support
This is needed for devices with mac address stored in ascii format, e.g. This is needed for devices with mac address stored in ascii format,
HiWiFi HC6361 to be ported in the following patch. e.g. HiWiFi HC6361 to be ported in the following patch.
Submitted-by: Yousong Zhou <yszhou4tech@gmail.com> Submitted-by: Yousong Zhou <yszhou4tech@gmail.com>
--- ---
net/ethernet/eth.c | 83 ++++++++++++------ net/core/of_net.c | 83 ++++++++++++------
1 files changed, 72 insertions(+), 11 deletions(-) 1 files changed, 72 insertions(+), 11 deletions(-)
--- a/net/ethernet/eth.c --- a/net/core/of_net.c
+++ b/net/ethernet/eth.c +++ b/net/core/of_net.c
@@ -538,6 +538,63 @@ int eth_platform_get_mac_address(struct @@ -57,13 +57,70 @@ static int of_get_mac_addr(struct device
return -ENODEV;
} }
EXPORT_SYMBOL(eth_platform_get_mac_address);
+static void *nvmem_cell_get_mac_address(struct nvmem_cell *cell) +static void *nvmem_cell_get_mac_address(struct nvmem_cell *cell)
+{ +{
@ -72,35 +72,40 @@ Submitted-by: Yousong Zhou <yszhou4tech@gmail.com>
+ }, + },
+}; +};
+ +
/** static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr)
* nvmem_get_mac_address - Obtain the MAC address from an nvmem cell named
* 'mac-address' associated with given device.
@@ -549,21 +606,28 @@ EXPORT_SYMBOL(eth_platform_get_mac_addre
*/
int nvmem_get_mac_address(struct device *dev, void *addrbuf)
{ {
struct platform_device *pdev = of_find_device_by_node(np);
+ struct nvmem_cell_mac_address_property *property; + struct nvmem_cell_mac_address_property *property;
struct nvmem_cell *cell; struct nvmem_cell *cell;
const void *mac; const void *mac;
- size_t len; - size_t len;
+ int i; - int ret;
+ + int ret, i;
/* Try lookup by device first, there might be a nvmem_cell_lookup
* associated with a given device.
@@ -74,17 +131,26 @@ static int of_get_mac_addr_nvmem(struct
return ret;
}
- cell = of_nvmem_cell_get(np, "mac-address");
+ for (i = 0; i < ARRAY_SIZE(nvmem_cell_mac_address_properties); i++) { + for (i = 0; i < ARRAY_SIZE(nvmem_cell_mac_address_properties); i++) {
+ property = &nvmem_cell_mac_address_properties[i]; + property = &nvmem_cell_mac_address_properties[i];
+ cell = nvmem_cell_get(dev, property->name); + cell = of_nvmem_cell_get(np, property->name);
+ /* For -EPROBE_DEFER don't try other properties. We'll get back to this one. */ + /* For -EPROBE_DEFER don't try other properties.
+ * We'll get back to this one.
+ */
+ if (!IS_ERR(cell) || PTR_ERR(cell) == -EPROBE_DEFER) + if (!IS_ERR(cell) || PTR_ERR(cell) == -EPROBE_DEFER)
+ break; + break;
+ } + }
+
- cell = nvmem_cell_get(dev, "mac-address");
if (IS_ERR(cell)) if (IS_ERR(cell))
return PTR_ERR(cell); return PTR_ERR(cell);
- mac = nvmem_cell_read(cell, &len); - mac = nvmem_cell_read(cell, &len);
+ mac = property->read(cell); + mac = property->read(cell);
nvmem_cell_put(cell); nvmem_cell_put(cell);
-
if (IS_ERR(mac)) if (IS_ERR(mac))
return PTR_ERR(mac); return PTR_ERR(mac);