diff mbox series

arm64: dts: qcom: qrb5165-rb5: fix uSD pins drive strength

Message ID 20201217183341.3186402-1-dmitry.baryshkov@linaro.org (mailing list archive)
State Accepted
Commit abf2c58aaa776cf43daf0fc4fd20082c71583c6b
Headers show
Series arm64: dts: qcom: qrb5165-rb5: fix uSD pins drive strength | expand

Commit Message

Dmitry Baryshkov Dec. 17, 2020, 6:33 p.m. UTC
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")
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

patchwork-bot+linux-arm-msm@kernel.org Jan. 15, 2021, 3 p.m. UTC | #1
Hello:

This patch was applied to qcom/linux.git (refs/heads/for-next):

On Thu, 17 Dec 2020 21:33:41 +0300 you wrote:
> 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")
> 
> [...]

Here is the summary with links:
  - arm64: dts: qcom: qrb5165-rb5: fix uSD pins drive strength
    https://git.kernel.org/qcom/c/abf2c58aaa77

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index f3da4b0a63bc..3cb3914b8305 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -1081,8 +1081,6 @@  &sdhc_2 {
 	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;
 };
@@ -1382,13 +1380,13 @@  clk {
 		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>;
 		};
 	};