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From: <ricky_wu@realtek.com>
To: <arnd@arndb.de>, <gregkh@linuxfoundation.org>,
	<bhelgaas@google.com>, <ricky_wu@realtek.com>,
	<vaibhavgupta40@gmail.com>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] misc: rtsx: init value of aspm_enabled
Date: Thu, 21 Jan 2021 18:35:59 +0800	[thread overview]
Message-ID: <20210121103559.2574-1-ricky_wu@realtek.com> (raw)

From: Ricky Wu <ricky_wu@realtek.com>

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

Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
---
 drivers/misc/cardreader/rtsx_pcr.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index 2aa6648fa41f..5a491d2cd1ae 100644
--- 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);
-- 
2.17.1


             reply	other threads:[~2021-01-21 10:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21 10:35 ricky_wu [this message]
2021-01-21 10:45 ` [PATCH] misc: rtsx: init value of aspm_enabled Greg KH
  -- strict thread matches above, loose matches on Subject: below --
2021-01-21 10:16 ricky_wu
2021-01-21 10:19 ` 吳昊澄 Ricky

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