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1c16b574c4
Backport the phy/phylink/sfp patches currently queued in netdev or in mainline necessary to support GPON popular modules, specifically to support Huawei and Nokia GPON modules. Signed-off-by: Russell King <linux@armlinux.org.uk> [jonas.gorski: include kernel version in file names, refresh patches] Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
53 lines
1.7 KiB
Diff
53 lines
1.7 KiB
Diff
From df5c4d93c5a59cba0f7479a4cd4e22b50726ce88 Mon Sep 17 00:00:00 2001
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From: Russell King <rmk+kernel@armlinux.org.uk>
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Date: Thu, 17 Oct 2019 11:12:42 +0100
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Subject: [PATCH 625/660] net: sfp: control TX_DISABLE and phy only from main
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state machine
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We initialise TX_DISABLE when the sfp cage is probed, and then
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maintain its state in the main state machine. However, the module
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state machine:
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- negates it when detecting a newly inserted module when it's already
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guaranteed to be negated.
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- negates it when the module is removed, but the main state machine
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will do this anyway.
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Make TX_DISABLE entirely controlled by the main state machine.
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The main state machine also probes the module for a PHY, and removes
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the PHY when the the module is removed. Hence, removing the PHY in
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sfp_sm_module_remove() is also redundant, and is a left-over from
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when we tried to probe for the PHY from the module state machine.
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Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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---
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drivers/net/phy/sfp.c | 9 +--------
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1 file changed, 1 insertion(+), 8 deletions(-)
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--- a/drivers/net/phy/sfp.c
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+++ b/drivers/net/phy/sfp.c
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@@ -1492,11 +1492,6 @@ static void sfp_sm_mod_remove(struct sfp
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sfp_hwmon_remove(sfp);
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- if (sfp->mod_phy)
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- sfp_sm_phy_detach(sfp);
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-
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- sfp_module_tx_disable(sfp);
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-
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memset(&sfp->id, 0, sizeof(sfp->id));
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sfp->module_power_mW = 0;
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@@ -1534,10 +1529,8 @@ static void sfp_sm_module(struct sfp *sf
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switch (sfp->sm_mod_state) {
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default:
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- if (event == SFP_E_INSERT && sfp->attached) {
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- sfp_module_tx_disable(sfp);
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+ if (event == SFP_E_INSERT && sfp->attached)
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sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
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- }
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break;
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case SFP_MOD_PROBE:
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