diff mbox series

[net-next,v4,13/13] net: phy: at803x: drop specific PHY ID check from cable test functions

Message ID 20231208145200.25162-14-ansuelsmth@gmail.com (mailing list archive)
State Accepted
Commit ef9df47b449e32e06501a11272809be49019bdb6
Delegated to: Netdev Maintainers
Headers show
Series net: phy: at803x: cleanup | expand

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Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
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: 1115 this patch: 1115
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
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: 1142 this patch: 1142
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 183 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Christian Marangi Dec. 8, 2023, 2:52 p.m. UTC 
Drop specific PHY ID check for cable test functions for at803x. This is
done to make functions more generic. While at it better describe what
the functions does by using more symbolic function names.

PHYs that requires to set additional reg are moved to specific function
calling the more generic one.

cdt_start and cdt_wait_for_completion are changed to take an additional
arg to pass specific values specific to the PHY.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 drivers/net/phy/at803x.c | 95 +++++++++++++++++++++-------------------
 1 file changed, 50 insertions(+), 45 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index da3506fd19c8..b9d3a26cf6dc 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -1222,31 +1222,16 @@  static int at803x_cdt_fault_length(u16 status)
 	return (dt * 824) / 10;
 }
 
-static int at803x_cdt_start(struct phy_device *phydev, int pair)
+static int at803x_cdt_start(struct phy_device *phydev,
+			    u32 cdt_start)
 {
-	u16 cdt;
-
-	/* qca8081 takes the different bit 15 to enable CDT test */
-	if (phydev->drv->phy_id == QCA8081_PHY_ID)
-		cdt = QCA808X_CDT_ENABLE_TEST |
-			QCA808X_CDT_LENGTH_UNIT |
-			QCA808X_CDT_INTER_CHECK_DIS;
-	else
-		cdt = FIELD_PREP(AT803X_CDT_MDI_PAIR_MASK, pair) |
-			AT803X_CDT_ENABLE_TEST;
-
-	return phy_write(phydev, AT803X_CDT, cdt);
+	return phy_write(phydev, AT803X_CDT, cdt_start);
 }
 
-static int at803x_cdt_wait_for_completion(struct phy_device *phydev)
+static int at803x_cdt_wait_for_completion(struct phy_device *phydev,
+					  u32 cdt_en)
 {
 	int val, ret;
-	u16 cdt_en;
-
-	if (phydev->drv->phy_id == QCA8081_PHY_ID)
-		cdt_en = QCA808X_CDT_ENABLE_TEST;
-	else
-		cdt_en = AT803X_CDT_ENABLE_TEST;
 
 	/* One test run takes about 25ms */
 	ret = phy_read_poll_timeout(phydev, AT803X_CDT, val,
@@ -1266,11 +1251,13 @@  static int at803x_cable_test_one_pair(struct phy_device *phydev, int pair)
 	};
 	int ret, val;
 
-	ret = at803x_cdt_start(phydev, pair);
+	val = FIELD_PREP(AT803X_CDT_MDI_PAIR_MASK, pair) |
+	      AT803X_CDT_ENABLE_TEST;
+	ret = at803x_cdt_start(phydev, val);
 	if (ret)
 		return ret;
 
-	ret = at803x_cdt_wait_for_completion(phydev);
+	ret = at803x_cdt_wait_for_completion(phydev, AT803X_CDT_ENABLE_TEST);
 	if (ret)
 		return ret;
 
@@ -1292,19 +1279,11 @@  static int at803x_cable_test_one_pair(struct phy_device *phydev, int pair)
 }
 
 static int at803x_cable_test_get_status(struct phy_device *phydev,
-					bool *finished)
+					bool *finished, unsigned long pair_mask)
 {
-	unsigned long pair_mask;
 	int retries = 20;
 	int pair, ret;
 
-	if (phydev->phy_id == ATH9331_PHY_ID ||
-	    phydev->phy_id == ATH8032_PHY_ID ||
-	    phydev->phy_id == QCA9561_PHY_ID)
-		pair_mask = 0x3;
-	else
-		pair_mask = 0xf;
-
 	*finished = false;
 
 	/* According to the datasheet the CDT can be performed when
@@ -1331,7 +1310,7 @@  static int at803x_cable_test_get_status(struct phy_device *phydev,
 	return 0;
 }
 
-static int at803x_cable_test_start(struct phy_device *phydev)
+static void at803x_cable_test_autoneg(struct phy_device *phydev)
 {
 	/* Enable auto-negotiation, but advertise no capabilities, no link
 	 * will be established. A restart of the auto-negotiation is not
@@ -1339,11 +1318,11 @@  static int at803x_cable_test_start(struct phy_device *phydev)
 	 */
 	phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
 	phy_write(phydev, MII_ADVERTISE, ADVERTISE_CSMA);
-	if (phydev->phy_id != ATH9331_PHY_ID &&
-	    phydev->phy_id != ATH8032_PHY_ID &&
-	    phydev->phy_id != QCA9561_PHY_ID)
-		phy_write(phydev, MII_CTRL1000, 0);
+}
 
+static int at803x_cable_test_start(struct phy_device *phydev)
+{
+	at803x_cable_test_autoneg(phydev);
 	/* we do all the (time consuming) work later */
 	return 0;
 }
@@ -1618,6 +1597,29 @@  static int at8031_config_intr(struct phy_device *phydev)
 	return at803x_config_intr(phydev);
 }
 
+/* AR8031 and AR8035 share the same cable test get status reg */
+static int at8031_cable_test_get_status(struct phy_device *phydev,
+					bool *finished)
+{
+	return at803x_cable_test_get_status(phydev, finished, 0xf);
+}
+
+/* AR8031 and AR8035 share the same cable test start logic */
+static int at8031_cable_test_start(struct phy_device *phydev)
+{
+	at803x_cable_test_autoneg(phydev);
+	phy_write(phydev, MII_CTRL1000, 0);
+	/* we do all the (time consuming) work later */
+	return 0;
+}
+
+/* AR8032, AR9331 and QCA9561 share the same cable test get status reg */
+static int at8032_cable_test_get_status(struct phy_device *phydev,
+					bool *finished)
+{
+	return at803x_cable_test_get_status(phydev, finished, 0x3);
+}
+
 static int at8035_parse_dt(struct phy_device *phydev)
 {
 	struct at803x_priv *priv = phydev->priv;
@@ -2041,11 +2043,14 @@  static int qca808x_cable_test_get_status(struct phy_device *phydev, bool *finish
 
 	*finished = false;
 
-	ret = at803x_cdt_start(phydev, 0);
+	val = QCA808X_CDT_ENABLE_TEST |
+	      QCA808X_CDT_LENGTH_UNIT |
+	      QCA808X_CDT_INTER_CHECK_DIS;
+	ret = at803x_cdt_start(phydev, val);
 	if (ret)
 		return ret;
 
-	ret = at803x_cdt_wait_for_completion(phydev);
+	ret = at803x_cdt_wait_for_completion(phydev, QCA808X_CDT_ENABLE_TEST);
 	if (ret)
 		return ret;
 
@@ -2143,8 +2148,8 @@  static struct phy_driver at803x_driver[] = {
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,
 	.set_tunable		= at803x_set_tunable,
-	.cable_test_start	= at803x_cable_test_start,
-	.cable_test_get_status	= at803x_cable_test_get_status,
+	.cable_test_start	= at8031_cable_test_start,
+	.cable_test_get_status	= at8031_cable_test_get_status,
 }, {
 	/* Qualcomm Atheros AR8030 */
 	.phy_id			= ATH8030_PHY_ID,
@@ -2181,8 +2186,8 @@  static struct phy_driver at803x_driver[] = {
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,
 	.set_tunable		= at803x_set_tunable,
-	.cable_test_start	= at803x_cable_test_start,
-	.cable_test_get_status	= at803x_cable_test_get_status,
+	.cable_test_start	= at8031_cable_test_start,
+	.cable_test_get_status	= at8031_cable_test_get_status,
 }, {
 	/* Qualcomm Atheros AR8032 */
 	PHY_ID_MATCH_EXACT(ATH8032_PHY_ID),
@@ -2197,7 +2202,7 @@  static struct phy_driver at803x_driver[] = {
 	.config_intr		= at803x_config_intr,
 	.handle_interrupt	= at803x_handle_interrupt,
 	.cable_test_start	= at803x_cable_test_start,
-	.cable_test_get_status	= at803x_cable_test_get_status,
+	.cable_test_get_status	= at8032_cable_test_get_status,
 }, {
 	/* ATHEROS AR9331 */
 	PHY_ID_MATCH_EXACT(ATH9331_PHY_ID),
@@ -2210,7 +2215,7 @@  static struct phy_driver at803x_driver[] = {
 	.config_intr		= at803x_config_intr,
 	.handle_interrupt	= at803x_handle_interrupt,
 	.cable_test_start	= at803x_cable_test_start,
-	.cable_test_get_status	= at803x_cable_test_get_status,
+	.cable_test_get_status	= at8032_cable_test_get_status,
 	.read_status		= at803x_read_status,
 	.soft_reset		= genphy_soft_reset,
 	.config_aneg		= at803x_config_aneg,
@@ -2226,7 +2231,7 @@  static struct phy_driver at803x_driver[] = {
 	.config_intr		= at803x_config_intr,
 	.handle_interrupt	= at803x_handle_interrupt,
 	.cable_test_start	= at803x_cable_test_start,
-	.cable_test_get_status	= at803x_cable_test_get_status,
+	.cable_test_get_status	= at8032_cable_test_get_status,
 	.read_status		= at803x_read_status,
 	.soft_reset		= genphy_soft_reset,
 	.config_aneg		= at803x_config_aneg,