arm64: dts: qcom: add correct drive strenght on cs pins

2mA drive strenght is not enough to drive chipselect low on hardware
configurations with level shifters, 16mA should give good range to
allow such configurations to work.

This issue was noticed while testing spi on db410c with sensor board.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
index 3bd917e48a8ae572f19e29126e2970d42c21c688..c17cd8bd7c9f0499ce33ff47f3796c3f295f68b1 100644 (file)
--- a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
@@ -82,7 +82,7 @@
                };
                pinconf_cs {
                        pins = "gpio2";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };
@@ -116,7 +116,7 @@
                };
                pinconf_cs {
                        pins = "gpio6";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };
@@ -150,7 +150,7 @@
                };
                pinconf_cs {
                        pins = "gpio10";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };
@@ -184,7 +184,7 @@
                };
                pinconf_cs {
                        pins = "gpio14";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };
@@ -218,7 +218,7 @@
                };
                pinconf_cs {
                        pins = "gpio18";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };
@@ -252,7 +252,7 @@
                };
                pinconf_cs {
                        pins = "gpio22";
-                       drive-strength = <2>;
+                       drive-strength = <16>;
                        bias-disable;
                        output-high;
                };