e1000e: fix S0ix flow to allow S0i3.2 subset entry

[ Upstream commit a379b01cd4b2aa3f12786b281a714871574e5ccb ]

Changed a configuration in the flows to align with
architecture requirements to achieve S0i3.2 substate.

This helps both i219V and i219LM configurations.

Also fixed a typo in the previous commit 632fbd5eb5b0
("e1000e: fix S0ix flows for cable connected case").

Fixes: 632fbd5eb5b0 ("e1000e: fix S0ix flows for cable connected case").
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Link: https://lore.kernel.org/r/20201208185632.151052-1-mario.limonciello@dell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 664e8ccc88d22df6c891c819b6da9c6bc3a383c0..2147c5b055d5abe5b4364fa4f692c5d1212efc6f 100644 (file)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6449,13 +6449,13 @@ static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter)
 
        /* Ungate PGCB clock */
        mac_data = er32(FEXTNVM9);
-       mac_data |= BIT(28);
+       mac_data &= ~BIT(28);
        ew32(FEXTNVM9, mac_data);
 
        /* Enable K1 off to enable mPHY Power Gating */
        mac_data = er32(FEXTNVM6);
        mac_data |= BIT(31);
-       ew32(FEXTNVM12, mac_data);
+       ew32(FEXTNVM6, mac_data);
 
        /* Enable mPHY power gating for any link and speed */
        mac_data = er32(FEXTNVM8);
@@ -6499,11 +6499,11 @@ static void e1000e_s0ix_exit_flow(struct e1000_adapter *adapter)
        /* Disable K1 off */
        mac_data = er32(FEXTNVM6);
        mac_data &= ~BIT(31);
-       ew32(FEXTNVM12, mac_data);
+       ew32(FEXTNVM6, mac_data);
 
        /* Disable Ungate PGCB clock */
        mac_data = er32(FEXTNVM9);
-       mac_data &= ~BIT(28);
+       mac_data |= BIT(28);
        ew32(FEXTNVM9, mac_data);
 
        /* Cancel not waking from dynamic