Commit d928061c authored by Ricky Wu's avatar Ricky Wu Committed by Greg Kroah-Hartman
Browse files

misc: rtsx: modify en/disable aspm function 



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

Signed-off-by: default avatarRicky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20201202063124.18262-1-ricky_wu@realtek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 31dcb6c3

drivers/misc/cardreader/rtsx_pcr.c

+9 −3
Original line number Diff line number Diff line
@@ -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;

}