diff mbox series

[net-next,RFC,07/14] net: phy: add support for driver specific PHY package probe/config

Message ID 20231120135041.15259-8-ansuelsmth@gmail.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: phy: Support DT PHY package | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/codegen success Generated files up to date
netdev/tree_selection success Clearly marked for net-next, async
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 success Errors and warnings before: 1577 this patch: 1577
netdev/cc_maintainers success CCed 11 of 11 maintainers
netdev/build_clang success Errors and warnings before: 1173 this patch: 1173
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 success Errors and warnings before: 1614 this patch: 1614
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 59 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 1 this patch: 1
netdev/source_inline success Was 0 now: 0

Commit Message

Christian Marangi Nov. 20, 2023, 1:50 p.m. UTC 
Add PHY driver specific function to probe and configure PHY package.
These function are run only once before the PHY probe and config_init.

They are used in conjunction with DT PHY package define for basic PHY
package implementation to setup and probe PHY package with simple
functions directly defined in the PHY driver struct.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 drivers/net/phy/phy_device.c | 14 ++++++++++++++
 include/linux/phy.h          | 21 +++++++++++++++++++++
 2 files changed, 35 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 91d17129b774..0b7ba6995929 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1246,6 +1246,13 @@  int phy_init_hw(struct phy_device *phydev)
 	if (ret < 0)
 		return ret;
 
+	if (phydev->drv->phy_package_config_init_once &&
+	    phy_package_init_once(phydev)) {
+		ret = phydev->drv->phy_package_config_init_once(phydev);
+		if (ret < 0)
+			return ret;
+	}
+
 	if (phydev->drv->config_init) {
 		ret = phydev->drv->config_init(phydev);
 		if (ret < 0)
@@ -3386,6 +3393,13 @@  static int phy_probe(struct device *dev)
 	/* Deassert the reset signal */
 	phy_device_reset(phydev, 0);
 
+	if (phydev->drv->phy_package_probe_once &&
+	    phy_package_probe_once(phydev)) {
+		err = phydev->drv->phy_package_probe_once(phydev);
+		if (err)
+			goto out;
+	}
+
 	if (phydev->drv->probe) {
 		err = phydev->drv->probe(phydev);
 		if (err)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 7c47c12cffa0..1849fc637196 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -924,12 +924,33 @@  struct phy_driver {
 	 */
 	int (*soft_reset)(struct phy_device *phydev);
 
+	/**
+	 * @phy_package_config_init_once: Driver specific PHY package
+	 *   config init call
+	 * @def: PHY device to use to probe PHY package
+	 *
+	 * Called to initialize the PHY package, including after
+	 * a reset.
+	 * Called BEFORE PHY config_init.
+	 */
+	int (*phy_package_config_init_once)(struct phy_device *dev);
+
 	/**
 	 * @config_init: Called to initialize the PHY,
 	 * including after a reset
 	 */
 	int (*config_init)(struct phy_device *phydev);
 
+	/**
+	 * @phy_package_probe_once: Driver specific PHY package probe
+	 * @def: PHY device to use to probe PHY package
+	 *
+	 * Called during discovery once per PHY package. Used to set
+	 * up device-specific PHY package structures, if any.
+	 * Called BEFORE PHY probe.
+	 */
+	int (*phy_package_probe_once)(struct phy_device *dev);
+
 	/**
 	 * @probe: Called during discovery.  Used to set
 	 * up device-specific structures, if any