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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	Alvaro Gamez Machado <alvaro.gamez@hazent.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.16 05/64] net: phy: dp83822: use BMCR_ANENABLE instead of BMSR_ANEGCAPABLE for DP83620
Date: Sun, 24 Jun 2018 23:21:46 +0800	[thread overview]
Message-ID: <20180624142743.941503248@linuxfoundation.org> (raw)
In-Reply-To: <20180624142743.613370789@linuxfoundation.org>

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alvaro Gamez Machado <alvaro.gamez@hazent.com>

[ Upstream commit b718e8c8f4f5920aaddc2e52d5e32f494c91129c ]

DP83620 register set is compatible with the DP83848, but it also supports
100base-FX. When the hardware is configured such as that fiber mode is
enabled, autonegotiation is not possible.

The chip, however, doesn't expose this information via BMSR_ANEGCAPABLE.
Instead, this bit is always set high, even if the particular hardware
configuration makes it so that auto negotiation is not possible [1]. Under
these circumstances, the phy subsystem keeps trying for autonegotiation to
happen, without success.

Hereby, we inspect BMCR_ANENABLE bit after genphy_config_init, which on
reset is set to 0 when auto negotiation is disabled, and so we use this
value instead of BMSR_ANEGCAPABLE.

[1] https://e2e.ti.com/support/interface/ethernet/f/903/p/697165/2571170

Signed-off-by: Alvaro Gamez Machado <alvaro.gamez@hazent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/dp83848.c |   35 +++++++++++++++++++++++++++++------
 1 file changed, 29 insertions(+), 6 deletions(-)

--- a/drivers/net/phy/dp83848.c
+++ b/drivers/net/phy/dp83848.c
@@ -74,6 +74,25 @@ static int dp83848_config_intr(struct ph
 	return phy_write(phydev, DP83848_MICR, control);
 }
 
+static int dp83848_config_init(struct phy_device *phydev)
+{
+	int err;
+	int val;
+
+	err = genphy_config_init(phydev);
+	if (err < 0)
+		return err;
+
+	/* DP83620 always reports Auto Negotiation Ability on BMSR. Instead,
+	 * we check initial value of BMCR Auto negotiation enable bit
+	 */
+	val = phy_read(phydev, MII_BMCR);
+	if (!(val & BMCR_ANENABLE))
+		phydev->autoneg = AUTONEG_DISABLE;
+
+	return 0;
+}
+
 static struct mdio_device_id __maybe_unused dp83848_tbl[] = {
 	{ TI_DP83848C_PHY_ID, 0xfffffff0 },
 	{ NS_DP83848C_PHY_ID, 0xfffffff0 },
@@ -83,7 +102,7 @@ static struct mdio_device_id __maybe_unu
 };
 MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
 
-#define DP83848_PHY_DRIVER(_id, _name)				\
+#define DP83848_PHY_DRIVER(_id, _name, _config_init)		\
 	{							\
 		.phy_id		= _id,				\
 		.phy_id_mask	= 0xfffffff0,			\
@@ -92,7 +111,7 @@ MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
 		.flags		= PHY_HAS_INTERRUPT,		\
 								\
 		.soft_reset	= genphy_soft_reset,		\
-		.config_init	= genphy_config_init,		\
+		.config_init	= _config_init,			\
 		.suspend	= genphy_suspend,		\
 		.resume		= genphy_resume,		\
 								\
@@ -102,10 +121,14 @@ MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
 	}
 
 static struct phy_driver dp83848_driver[] = {
-	DP83848_PHY_DRIVER(TI_DP83848C_PHY_ID, "TI DP83848C 10/100 Mbps PHY"),
-	DP83848_PHY_DRIVER(NS_DP83848C_PHY_ID, "NS DP83848C 10/100 Mbps PHY"),
-	DP83848_PHY_DRIVER(TI_DP83620_PHY_ID, "TI DP83620 10/100 Mbps PHY"),
-	DP83848_PHY_DRIVER(TLK10X_PHY_ID, "TI TLK10X 10/100 Mbps PHY"),
+	DP83848_PHY_DRIVER(TI_DP83848C_PHY_ID, "TI DP83848C 10/100 Mbps PHY",
+			   genphy_config_init),
+	DP83848_PHY_DRIVER(NS_DP83848C_PHY_ID, "NS DP83848C 10/100 Mbps PHY",
+			   genphy_config_init),
+	DP83848_PHY_DRIVER(TI_DP83620_PHY_ID, "TI DP83620 10/100 Mbps PHY",
+			   dp83848_config_init),
+	DP83848_PHY_DRIVER(TLK10X_PHY_ID, "TI TLK10X 10/100 Mbps PHY",
+			   genphy_config_init),
 };
 module_phy_driver(dp83848_driver);
 



  parent reply	other threads:[~2018-06-24 15:34 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-24 15:21 [PATCH 4.16 00/64] 4.16.18-stable review Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 01/64] bonding: re-evaluate force_primary when the primary slave name changes Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 03/64] ipv6: allow PMTU exceptions to local routes Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 04/64] net: dsa: add error handling for pskb_trim_rcsum Greg Kroah-Hartman
2018-06-24 15:21 ` Greg Kroah-Hartman [this message]
2018-06-24 15:21 ` [PATCH 4.16 06/64] net/sched: act_simple: fix parsing of TCA_DEF_DATA Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 07/64] tcp: verify the checksum of the first data segment in a new connection Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 08/64] socket: close race condition between sock_close() and sockfs_setattr() Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 09/64] udp: fix rx queue len reported by diag and proc interface Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 10/64] net: in virtio_net_hdr only add VLAN_HLEN to csum_start if payload holds vlan Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 11/64] hv_netvsc: Fix a network regression after ifdown/ifup Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 12/64] tls: fix use-after-free in tls_push_record Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 13/64] ext4: fix hole length detection in ext4_ind_map_blocks() Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 14/64] ext4: update mtime in ext4_punch_hole even if no blocks are released Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 15/64] ext4: do not allow external inodes for inline data Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 16/64] ext4: bubble errors from ext4_find_inline_data_nolock() up to ext4_iget() Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 17/64] ext4: correctly handle a zero-length xattr with a non-zero e_value_offs Greg Kroah-Hartman
2018-06-24 15:21 ` [PATCH 4.16 18/64] ext4: fix fencepost error in check for inode count overflow during resize Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 19/64] driver core: Dont ignore class_dir_create_and_add() failure Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 20/64] Btrfs: fix clone vs chattr NODATASUM race Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 21/64] Btrfs: fix memory and mount leak in btrfs_ioctl_rm_dev_v2() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 22/64] btrfs: return error value if create_io_em failed in cow_file_range Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 23/64] btrfs: scrub: Dont use inode pages for device replace Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 24/64] ALSA: usb-audio: Disable the quirk for Nura headset Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 25/64] ALSA: hda/realtek - Enable mic-mute hotkey for several Lenovo AIOs Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 26/64] ALSA: hda/conexant - Add fixup for HP Z2 G4 workstation Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 27/64] ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 28/64] ALSA: hda: add dock and led support for HP EliteBook 830 G5 Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 29/64] ALSA: hda: add dock and led support for HP ProBook 640 G4 Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 30/64] x86/MCE: Fix stack out-of-bounds write in mce-inject.c: Flags_read() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 31/64] smb3: fix various xid leaks Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 32/64] smb3: on reconnect set PreviousSessionId field Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 33/64] CIFS: 511c54a2f69195b28afb9dd119f03787b1625bb4 adds a check for session expiry Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 34/64] cifs: For SMB2 security informaion query, check for minimum sized security descriptor instead of sizeof FileAllInformation class Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 35/64] nbd: fix nbd device deletion Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 36/64] nbd: update size when connected Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 37/64] nbd: use bd_set_size when updating disk size Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 38/64] blk-mq: reinit q->tag_set_list entry only after grace period Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 39/64] bdi: Move cgroup bdi_writeback to a dedicated low concurrency workqueue Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 40/64] cpufreq: Fix new policy initialization during limits updates via sysfs Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 41/64] cpufreq: ti-cpufreq: Fix an incorrect error return value Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 42/64] cpufreq: governors: Fix long idle detection logic in load calculation Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 43/64] libata: zpodd: small read overflow in eject_tray() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 44/64] libata: Drop SanDisk SD7UB3Q*G1001 NOLPM quirk Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 45/64] nvme/pci: Sync controller reset for AER slot_reset Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 46/64] w1: mxc_w1: Enable clock before calling clk_get_rate() on it Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 47/64] x86/vector: Fix the args of vector_alloc tracepoint Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 48/64] x86/apic/vector: Prevent hlist corruption and leaks Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 49/64] x86/apic: Provide apic_ack_irq() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 50/64] x86/ioapic: Use apic_ack_irq() Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 51/64] x86/platform/uv: " Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 52/64] irq_remapping: " Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 53/64] genirq/generic_pending: Do not lose pending affinity update Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 54/64] genirq/affinity: Defer affinity setting if irq chip is busy Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 55/64] genirq/migration: Avoid out of line call if pending is not set Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 56/64] x86/intel_rdt: Enable CMT and MBM on new Skylake stepping Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 57/64] iwlwifi: fw: harden page loading code Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 58/64] orangefs: set i_size on new symlink Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 59/64] orangefs: report attributes_mask and attributes for statx Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 60/64] HID: intel_ish-hid: ipc: register more pm callbacks to support hibernation Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 61/64] HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 62/64] vhost: fix info leak due to uninitialized memory Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 63/64] fs/binfmt_misc.c: do not allow offset overflow Greg Kroah-Hartman
2018-06-24 15:22 ` [PATCH 4.16 64/64] mm, page_alloc: do not break __GFP_THISNODE by zonelist reset Greg Kroah-Hartman
2018-06-25  6:40 ` [PATCH 4.16 00/64] 4.16.18-stable review Naresh Kamboju
2018-06-25 17:20 ` Guenter Roeck

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