diff mbox series

[net-next,v4,8/9] net: dsa: microchip: Refactor switch shutdown routine for WoL preparation

Message ID 20231016141256.2011861-9-o.rempel@pengutronix.de (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: dsa: microchip: provide Wake on LAN support | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit fail Errors and warnings before: 1360 this patch: 1366
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang fail Errors and warnings before: 1385 this patch: 1391
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 1385 this patch: 1391
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 53 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Oleksij Rempel Oct. 16, 2023, 2:12 p.m. UTC
Centralize the switch shutdown routine in a dedicated function,
ksz_switch_shutdown(), to enhance code maintainability and reduce
redundancy. This change abstracts the common shutdown operations
previously duplicated in ksz9477_i2c_shutdown() and ksz_spi_shutdown().

This refactoring is a preparatory step for an upcoming patch to avoid
reset on shutdown if Wake-on-LAN (WoL) is enabled.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/net/dsa/microchip/ksz9477_i2c.c |  5 +----
 drivers/net/dsa/microchip/ksz_common.c  | 18 ++++++++++++++++++
 drivers/net/dsa/microchip/ksz_common.h  |  1 +
 drivers/net/dsa/microchip/ksz_spi.c     |  5 +----
 4 files changed, 21 insertions(+), 8 deletions(-)

Comments

Florian Fainelli Oct. 16, 2023, 3:39 p.m. UTC | #1
On 10/16/2023 7:12 AM, Oleksij Rempel wrote:
> Centralize the switch shutdown routine in a dedicated function,
> ksz_switch_shutdown(), to enhance code maintainability and reduce
> redundancy. This change abstracts the common shutdown operations
> previously duplicated in ksz9477_i2c_shutdown() and ksz_spi_shutdown().
> 
> This refactoring is a preparatory step for an upcoming patch to avoid
> reset on shutdown if Wake-on-LAN (WoL) is enabled.
> 
> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
diff mbox series

Patch

diff --git a/drivers/net/dsa/microchip/ksz9477_i2c.c b/drivers/net/dsa/microchip/ksz9477_i2c.c
index 2710afad4f3a..cac4a607e54a 100644
--- a/drivers/net/dsa/microchip/ksz9477_i2c.c
+++ b/drivers/net/dsa/microchip/ksz9477_i2c.c
@@ -66,10 +66,7 @@  static void ksz9477_i2c_shutdown(struct i2c_client *i2c)
 	if (!dev)
 		return;
 
-	if (dev->dev_ops->reset)
-		dev->dev_ops->reset(dev);
-
-	dsa_switch_shutdown(dev->ds);
+	ksz_switch_shutdown(dev);
 
 	i2c_set_clientdata(i2c, NULL);
 }
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 955434055f06..85513318d165 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -3810,6 +3810,24 @@  struct ksz_device *ksz_switch_alloc(struct device *base, void *priv)
 }
 EXPORT_SYMBOL(ksz_switch_alloc);
 
+/**
+ * ksz_switch_shutdown - Shutdown routine for the switch device.
+ * @dev: The switch device structure.
+ *
+ * This function is responsible for initiating a shutdown sequence for the
+ * switch device. It invokes the reset operation defined in the device
+ * operations, if available, to reset the switch. Subsequently, it calls the
+ * DSA framework's shutdown function to ensure a proper shutdown of the DSA
+ * switch.
+ */
+void ksz_switch_shutdown(struct ksz_device *dev)
+{
+	if (dev->dev_ops->reset)
+		dev->dev_ops->reset(dev);
+
+	dsa_switch_shutdown(dev->ds);
+}
+
 static void ksz_parse_rgmii_delay(struct ksz_device *dev, int port_num,
 				  struct device_node *port_dn)
 {
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 2ad49c5f1df4..81d2973ba7d6 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -398,6 +398,7 @@  phy_interface_t ksz_get_xmii(struct ksz_device *dev, int port, bool gbit);
 extern const struct ksz_chip_data ksz_switch_chips[];
 int ksz_switch_macaddr_get(struct dsa_switch *ds, int port,
 			   struct netlink_ext_ack *extack);
+void ksz_switch_shutdown(struct ksz_device *dev);
 
 /* Common register access functions */
 static inline struct regmap *ksz_regmap_8(struct ksz_device *dev)
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c
index 279338451621..6f6d878e742c 100644
--- a/drivers/net/dsa/microchip/ksz_spi.c
+++ b/drivers/net/dsa/microchip/ksz_spi.c
@@ -114,10 +114,7 @@  static void ksz_spi_shutdown(struct spi_device *spi)
 	if (!dev)
 		return;
 
-	if (dev->dev_ops->reset)
-		dev->dev_ops->reset(dev);
-
-	dsa_switch_shutdown(dev->ds);
+	ksz_switch_shutdown(dev);
 
 	spi_set_drvdata(spi, NULL);
 }