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[5.11,147/775] arm64: dts: qcom: qrb5165-rb5: fix uSD pins drive strength

Message ID 20210301161208.914506451@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman March 1, 2021, 4:05 p.m. UTC 
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>


[ Upstream commit abf2c58aaa776cf43daf0fc4fd20082c71583c6b ]

Lower drive strength for microSD data and CMD pins from 16 to 10. This
fixes spurious card removal issues observed on some boards. Also this
change allows us to re-enable 1.8V support, which seems to work with
lowered drive strength.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Cc: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Fixes: 53a8ccf1c7e5 ("arm64: dts: qcom: rb5: Add support for uSD card")
Link: https://lore.kernel.org/r/20201217183341.3186402-1-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

-- 
2.27.0
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Patch

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index ce22d4fa383e6..f86cc5140d3b9 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -491,8 +491,6 @@ 
 	vqmmc-supply = <&vreg_l6c_2p96>;
 	cd-gpios = <&tlmm 77 GPIO_ACTIVE_LOW>;
 	bus-width = <4>;
-	/* there seem to be issues with HS400-1.8V mode, so disable it */
-	no-1-8-v;
 	no-sdio;
 	no-emmc;
 };
@@ -706,13 +704,13 @@ 
 		cmd {
 			pins = "sdc2_cmd";
 			bias-pull-up;
-			drive-strength = <16>;
+			drive-strength = <10>;
 		};
 
 		data {
 			pins = "sdc2_data";
 			bias-pull-up;
-			drive-strength = <16>;
+			drive-strength = <10>;
 		};
 	};