[PATCH v2 1/4] misc: rtsx: modify en/disable aspm function

[ricky_wu]

From: Ricky Wu <ricky...@realtek.com>

enable/disable device ASPM function:
changed write ASPM configuration directly to use write register

Signed-off-by: Ricky Wu <ricky...@realtek.com>
---
 drivers/misc/cardreader/rtsx_pcr.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/cardreader/rtsx_pcr.c 
b/drivers/misc/cardreader/rtsx_pcr.c
index 5d15607027e9..c87f791bdcb5 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -89,9 +89,15 @@ static void rtsx_comm_set_aspm(struct rtsx_pcr *pcr, bool 
enable)
        if (pcr->aspm_enabled == enable)
                return;
 
-       pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL,
-                                          PCI_EXP_LNKCTL_ASPMC,
-                                          enable ? pcr->aspm_en : 0);
+       if (pcr->aspm_en & 0x02)
+               rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, FORCE_ASPM_CTL0 |
+                       FORCE_ASPM_CTL1, enable ? 0 : FORCE_ASPM_CTL0 | 
FORCE_ASPM_CTL1);
+       else
+               rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, FORCE_ASPM_CTL0 |
+                       FORCE_ASPM_CTL1, FORCE_ASPM_CTL0 | FORCE_ASPM_CTL1);
+
+       if (!enable && (pcr->aspm_en & 0x02))
+               mdelay(10);
 
        pcr->aspm_enabled = enable;
 }
-- 
2.17.1