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From: Manu Gautam <mgautam@codeaurora.org>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: linux-arm-msm@vger.kernel.org,
	Manu Gautam <mgautam@codeaurora.org>,
	Vivek Gautam <vivek.gautam@codeaurora.org>,
	Douglas Anderson <dianders@chromium.org>,
	Evan Green <evgreen@chromium.org>,
	"open list:GENERIC PHY FRAMEWORK" <linux-kernel@vger.kernel.org>
Subject: [PATCH v1] phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845
Date: Fri,  5 Oct 2018 14:39:19 +0530	[thread overview]
Message-ID: <20181005090920.26108-1-mgautam@codeaurora.org> (raw)

Tune1 register on sdm845 is used to update HSTX_TRIM with fused
setting. Enable same by specifying update_tune1_with_efuse flag
for sdm845, otherwise driver ends up programming tune2 register.
While at it, also fix HSTX_TRIM tuning logic which instead of
using fused value as HSTX_TRIM, incorrectly performs bitwise OR
operation with existing default value.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
---
 drivers/phy/qualcomm/phy-qcom-qusb2.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index e70e425f26f5..defeb0b7cfa0 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
@@ -231,6 +231,7 @@ static const struct qusb2_phy_cfg sdm845_phy_cfg = {
 	.mask_core_ready = CORE_READY_STATUS,
 	.has_pll_override = true,
 	.autoresume_en	  = BIT(0),
+	.update_tune1_with_efuse = true,
 };
 
 static const char * const qusb2_phy_vreg_names[] = {
@@ -415,12 +416,13 @@ static void qusb2_phy_set_tune2_param(struct qusb2_phy *qphy)
 
 	/* Fused TUNE1/2 value is the higher nibble only */
 	if (cfg->update_tune1_with_efuse)
-		qusb2_setbits(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE1],
-			      val[0] << 0x4);
+		qusb2_write_mask(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE1],
+				 val[0] << HSTX_TRIM_SHIFT,
+				 HSTX_TRIM_MASK);
 	else
-		qusb2_setbits(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE2],
-			      val[0] << 0x4);
-
+		qusb2_write_mask(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE2],
+				 val[0] << HSTX_TRIM_SHIFT,
+				 HSTX_TRIM_MASK);
 }
 
 static int qusb2_phy_set_mode(struct phy *phy, enum phy_mode mode)
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

             reply	other threads:[~2018-10-05  9:09 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-05  9:09 Manu Gautam [this message]
2018-10-10 22:36 ` [PATCH v1] phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845 Doug Anderson
2018-10-12  5:57   ` mgautam
2018-10-12 17:17     ` Doug Anderson

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