linux-kernel - [PATCH] mfd: rtsx: Modify rts5249_optimize

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Message-ID: <1378374338-11455-1-git-send-email-wei_wang@realsil.com.cn>
Date:	Thu, 5 Sep 2013 17:45:38 +0800
From:	<wei_wang@...lsil.com.cn>
To:	<sameo@...ux.intel.com>
CC:	<devel@...uxdriverproject.org>, <linux-kernel@...r.kernel.org>,
	<gregkh@...uxfoundation.org>, <rogerable@...ltek.com>,
	<micky_ching@...lsil.com.cn>, Wei WANG <wei_wang@...lsil.com.cn>
Subject: [PATCH] mfd: rtsx: Modify rts5249_optimize_phy

From: Wei WANG <wei_wang@...lsil.com.cn>

In some platforms, specially Thinkpad series, rts5249 won't be
initialized properly. So we need adjust some phy parameters to
improve the compatibility issue.

Signed-off-by: Wei WANG <wei_wang@...lsil.com.cn>
---
 drivers/mfd/rts5249.c |   25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
index 3b835f5..e3c6dc1 100644
--- a/drivers/mfd/rts5249.c
+++ b/drivers/mfd/rts5249.c
@@ -130,13 +130,34 @@ static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
 {
 	int err;
 
-	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46);
+	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFC6C);
 	if (err < 0)
 		return err;
 
 	msleep(1);
 
-	return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+	err = rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_PCR, 0xBA42);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RCR2, 0xC56A);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_FLD4, 0x78EB);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RDR, 0x4000);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RCR1, 0x011F);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_FLD3, 0x78E4);
+	if (err < 0)
+		return err;
+	return rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4FE4);
 }
 
 static int rts5249_turn_on_led(struct rtsx_pcr *pcr)
-- 
1.7.9.5

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