misc: rtsx: init value of aspm_enabled

make sure ASPM state sync with pcr->aspm_enabled
init value pcr->aspm_enabled

Cc: stable@vger.kernel.org
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20210122081906.19100-1-ricky_wu@realtek.com
Fixes: d928061c3143 ("misc: rtsx: modify en/disable aspm function")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index 2aa6648..5a491d2 100644 (file)
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -1512,6 +1512,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
        struct pcr_handle *handle;
        u32 base, len;
        int ret, i, bar = 0;
+       u8 val;
 
        dev_dbg(&(pcidev->dev),
                ": Realtek PCI-E Card Reader found at %s [%04x:%04x] (rev %x)\n",
@@ -1577,7 +1578,11 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
        pcr->host_cmds_addr = pcr->rtsx_resv_buf_addr;
        pcr->host_sg_tbl_ptr = pcr->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
        pcr->host_sg_tbl_addr = pcr->rtsx_resv_buf_addr + HOST_CMDS_BUF_LEN;
-
+       rtsx_pci_read_register(pcr, ASPM_FORCE_CTL, &val);
+       if (val & FORCE_ASPM_CTL0 && val & FORCE_ASPM_CTL1)
+               pcr->aspm_enabled = false;
+       else
+               pcr->aspm_enabled = true;
        pcr->card_inserted = 0;
        pcr->card_removed = 0;
        INIT_DELAYED_WORK(&pcr->carddet_work, rtsx_pci_card_detect);