diff mbox series

[net-next,v2,2/2] net: phy: adin: add support for inverting the link status output signal

Message ID 4a3728d1-86ed-bf1b-81cd-bdd2f274609d@sord.co.jp (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: phy: adin: add support for inverting the link status output signal | 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 success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang success Errors and warnings before: 8 this patch: 8
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: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 24 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Atsushi Nemoto May 31, 2023, 1:58 p.m. UTC 
The ADIN1200/ADIN1300 supports inverting the link status output signal
on the LINK_ST pin.

Add support for selecting this feature via device-tree properties.

Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 drivers/net/phy/adin.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c
index 134637584a83..331f9574328f 100644
--- a/drivers/net/phy/adin.c
+++ b/drivers/net/phy/adin.c
@@ -140,6 +140,9 @@ 
 #define ADIN1300_RMII_20_BITS			0x0004
 #define ADIN1300_RMII_24_BITS			0x0005
 
+#define ADIN1300_GE_LNK_STAT_INV_REG		0xff3c
+#define   ADIN1300_GE_LNK_STAT_INV_EN		BIT(0)
+
 /**
  * struct adin_cfg_reg_map - map a config value to aregister value
  * @cfg:	value in device configuration
@@ -495,6 +498,15 @@  static int adin_config_init(struct phy_device *phydev)
 	if (rc < 0)
 		return rc;
 
+	if (device_property_read_bool(&phydev->mdio.dev,
+				      "adi,link-stat-inv")) {
+		rc = phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
+				      ADIN1300_GE_LNK_STAT_INV_REG,
+				      ADIN1300_GE_LNK_STAT_INV_EN);
+		if (rc < 0)
+			return rc;
+	}
+
 	phydev_dbg(phydev, "PHY is using mode '%s'\n",
 		   phy_modes(phydev->interface));