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Subject[patch v2 net-next 10/13] net: hns: dsaf adds support of acpi
Date
Dsaf needs to get configuration parameter by ACPI, so this patch add
support of ACPI.

Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
---
change log:
v2:
1. use dev_of_node() instead of IS_ENABLED() to check if it is in
DT case,
2. split a new patch to implement misc operation method,
3. use acpi_dev_found() instead of acpi_match_device_ids() to
check which hw version it is,
4. use is_acpi_node instead of ACPI_COMPANION to check if it is
work in ACPI case.

v1: first submit
link: https://lkml.org/lkml/2016/5/13/108
---
drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 80 ++++++++++----------
drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 85 +++++++++++++++-------
drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 32 ++++----
3 files changed, 114 insertions(+), 83 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index 2ebf14a..3ef0c9b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -689,9 +689,7 @@ static int hns_mac_get_info(struct hns_mac_cb *mac_cb)
return 0;
}

- if (!is_of_node(mac_cb->fw_port))
- return -EINVAL;
-
+ if (is_of_node(mac_cb->fw_port)) {
/* parse property from port subnode in dsaf */
np = of_parse_phandle(to_of_node(mac_cb->fw_port), "phy-handle", 0);
mac_cb->phy_dev = of_phy_find_device(np);
@@ -701,47 +699,49 @@ static int hns_mac_get_info(struct hns_mac_cb *mac_cb)
mac_cb->mac_id, np->name);
}

- syscon = syscon_node_to_regmap(
- of_parse_phandle(to_of_node(mac_cb->fw_port),
- "serdes-syscon", 0));
- if (IS_ERR_OR_NULL(syscon)) {
- dev_err(mac_cb->dev, "serdes-syscon is needed!\n");
- return -EINVAL;
- }
- mac_cb->serdes_ctrl = syscon;
-
- ret = fwnode_property_read_u32(mac_cb->fw_port,
- "port-rst-offset",
- &mac_cb->port_rst_off);
- if (ret) {
- dev_dbg(mac_cb->dev,
- "mac%d port-rst-offset not found, use default value.\n",
- mac_cb->mac_id);
- }
+ syscon = syscon_node_to_regmap(
+ of_parse_phandle(to_of_node(mac_cb->fw_port),
+ "serdes-syscon", 0));
+ if (IS_ERR_OR_NULL(syscon)) {
+ dev_err(mac_cb->dev, "serdes-syscon is needed!\n");
+ return -EINVAL;
+ }
+ mac_cb->serdes_ctrl = syscon;

- ret = fwnode_property_read_u32(mac_cb->fw_port,
- "port-mode-offset",
- &mac_cb->port_mode_off);
- if (ret) {
- dev_dbg(mac_cb->dev,
- "mac%d port-mode-offset not found, use default value.\n",
- mac_cb->mac_id);
- }
+ ret = fwnode_property_read_u32(mac_cb->fw_port,
+ "port-rst-offset",
+ &mac_cb->port_rst_off);
+ if (ret) {
+ dev_dbg(mac_cb->dev,
+ "mac%d port-rst-offset not found, use default value.\n",
+ mac_cb->mac_id);
+ }

- ret = of_parse_phandle_with_fixed_args(to_of_node(mac_cb->fw_port),
- "cpld-syscon", 1, 0, &cpld_args);
- if (ret) {
- dev_dbg(mac_cb->dev, "mac%d no cpld-syscon found.\n",
- mac_cb->mac_id);
- mac_cb->cpld_ctrl = NULL;
- } else {
- syscon = syscon_node_to_regmap(cpld_args.np);
- if (IS_ERR_OR_NULL(syscon)) {
- dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
+ ret = fwnode_property_read_u32(mac_cb->fw_port,
+ "port-mode-offset",
+ &mac_cb->port_mode_off);
+ if (ret) {
+ dev_dbg(mac_cb->dev,
+ "mac%d port-mode-offset not found, use default value.\n",
+ mac_cb->mac_id);
+ }
+
+ ret = of_parse_phandle_with_fixed_args(
+ to_of_node(mac_cb->fw_port), "cpld-syscon", 1, 0,
+ &cpld_args);
+ if (ret) {
+ dev_dbg(mac_cb->dev, "mac%d no cpld-syscon found.\n",
+ mac_cb->mac_id);
mac_cb->cpld_ctrl = NULL;
} else {
- mac_cb->cpld_ctrl = syscon;
- mac_cb->cpld_ctrl_reg = cpld_args.args[0];
+ syscon = syscon_node_to_regmap(cpld_args.np);
+ if (IS_ERR_OR_NULL(syscon)) {
+ dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
+ mac_cb->cpld_ctrl = NULL;
+ } else {
+ mac_cb->cpld_ctrl = syscon;
+ mac_cb->cpld_ctrl_reg = cpld_args.args[0];
+ }
}
}

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 28bde08..ac03c4a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -7,6 +7,7 @@
* (at your option) any later version.
*/

+#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -33,6 +34,13 @@ const char *g_dsaf_mode_match[DSAF_MODE_MAX] = {
[DSAF_MODE_DISABLE_SP] = "single-port",
};

+static const struct acpi_device_id hns_dsaf_acpi_match[] = {
+ { "HISI00B1", 0 },
+ { "HISI00B2", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, hns_dsaf_acpi_match);
+
int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
{
int ret, i;
@@ -46,10 +54,22 @@ int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
struct device_node *np = dsaf_dev->dev->of_node;
struct platform_device *pdev = to_platform_device(dsaf_dev->dev);

- if (of_device_is_compatible(np, "hisilicon,hns-dsaf-v1"))
- dsaf_dev->dsaf_ver = AE_VERSION_1;
- else
- dsaf_dev->dsaf_ver = AE_VERSION_2;
+ if (dev_of_node(dsaf_dev->dev)) {
+ if (of_device_is_compatible(np, "hisilicon,hns-dsaf-v1"))
+ dsaf_dev->dsaf_ver = AE_VERSION_1;
+ else
+ dsaf_dev->dsaf_ver = AE_VERSION_2;
+ } else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
+ if (acpi_dev_found(hns_dsaf_acpi_match[0].id))
+ dsaf_dev->dsaf_ver = AE_VERSION_1;
+ else if (acpi_dev_found(hns_dsaf_acpi_match[1].id))
+ dsaf_dev->dsaf_ver = AE_VERSION_2;
+ else
+ return -ENXIO;
+ } else {
+ dev_err(dsaf_dev->dev, "cannot get cfg data from of or acpi\n");
+ return -ENXIO;
+ }

ret = device_property_read_string(dsaf_dev->dev, "mode", &mode_str);
if (ret) {
@@ -81,32 +101,40 @@ int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
else
dsaf_dev->dsaf_tc_mode = HRD_DSAF_4TC_MODE;

- syscon = syscon_node_to_regmap(
- of_parse_phandle(np, "subctrl-syscon", 0));
- if (IS_ERR_OR_NULL(syscon)) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, res_idx++);
- if (!res) {
- dev_err(dsaf_dev->dev, "subctrl info is needed!\n");
- return -ENOMEM;
- }
- dsaf_dev->sc_base = devm_ioremap_resource(&pdev->dev, res);
- if (!dsaf_dev->sc_base) {
- dev_err(dsaf_dev->dev, "subctrl can not map!\n");
- return -ENOMEM;
- }
+ if (dev_of_node(dsaf_dev->dev)) {
+ syscon = syscon_node_to_regmap(
+ of_parse_phandle(np, "subctrl-syscon", 0));
+ if (IS_ERR_OR_NULL(syscon)) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ res_idx++);
+ if (!res) {
+ dev_err(dsaf_dev->dev, "subctrl info is needed!\n");
+ return -ENOMEM;
+ }

- res = platform_get_resource(pdev, IORESOURCE_MEM, res_idx++);
- if (!res) {
- dev_err(dsaf_dev->dev, "serdes-ctrl info is needed!\n");
- return -ENOMEM;
- }
- dsaf_dev->sds_base = devm_ioremap_resource(&pdev->dev, res);
- if (!dsaf_dev->sds_base) {
- dev_err(dsaf_dev->dev, "serdes-ctrl can not map!\n");
- return -ENOMEM;
+ dsaf_dev->sc_base = devm_ioremap_resource(&pdev->dev,
+ res);
+ if (!dsaf_dev->sc_base) {
+ dev_err(dsaf_dev->dev, "subctrl can not map!\n");
+ return -ENOMEM;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM,
+ res_idx++);
+ if (!res) {
+ dev_err(dsaf_dev->dev, "serdes-ctrl info is needed!\n");
+ return -ENOMEM;
+ }
+
+ dsaf_dev->sds_base = devm_ioremap_resource(&pdev->dev,
+ res);
+ if (!dsaf_dev->sds_base) {
+ dev_err(dsaf_dev->dev, "serdes-ctrl can not map!\n");
+ return -ENOMEM;
+ }
+ } else {
+ dsaf_dev->sub_ctrl = syscon;
}
- } else {
- dsaf_dev->sub_ctrl = syscon;
}

res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ppe-base");
@@ -2686,6 +2714,7 @@ static struct platform_driver g_dsaf_driver = {
.driver = {
.name = DSAF_DRV_NAME,
.of_match_table = g_dsaf_match,
+ .acpi_match_table = hns_dsaf_acpi_match,
},
};

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index e1c3e0d..f21177b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -362,21 +362,23 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
if (!misc_op)
return NULL;

- misc_op->cpld_set_led = hns_cpld_set_led;
- misc_op->cpld_reset_led = cpld_led_reset;
- misc_op->cpld_set_led_id = cpld_set_led_id;
-
- misc_op->dsaf_reset = hns_dsaf_rst;
- misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
- misc_op->xge_core_srst = hns_dsaf_xge_core_srst_by_port;
- misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
- misc_op->ppe_srst = hns_ppe_srst_by_port;
- misc_op->ppe_comm_srst = hns_ppe_com_srst;
-
- misc_op->get_phy_if = hns_mac_get_phy_if;
- misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
-
- misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
+ if (dev_of_node(dsaf_dev->dev)) {
+ misc_op->cpld_set_led = hns_cpld_set_led;
+ misc_op->cpld_reset_led = cpld_led_reset;
+ misc_op->cpld_set_led_id = cpld_set_led_id;
+
+ misc_op->dsaf_reset = hns_dsaf_rst;
+ misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
+ misc_op->xge_core_srst = hns_dsaf_xge_core_srst_by_port;
+ misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
+ misc_op->ppe_srst = hns_ppe_srst_by_port;
+ misc_op->ppe_comm_srst = hns_ppe_com_srst;
+
+ misc_op->get_phy_if = hns_mac_get_phy_if;
+ misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
+
+ misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
+ }

return (void *)misc_op;
}
--
1.9.1
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