Enable support for the micro SD slot on the MTP.
Signed-off-by: Evan Green <evgreen@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 53 +++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
index d667eee4e6d03..b85e9fed14845 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
@@ -7,6 +7,7 @@
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include "sdm845.dtsi"
@@ -348,6 +349,18 @@
clock-frequency = <400000>;
};
+&sdhc_2 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data &sd_cd_odl>;
+
+ vmmc-supply = <&vreg_l21a_2p95>;
+ vqmmc-supply = <&vddpx_2>;
+
+ cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
+};
+
&qupv3_id_1 {
status = "okay";
};
@@ -444,3 +457,43 @@
bias-pull-up;
};
};
+
+&tlmm {
+ /* It seems that mmc_test reports errors if drive strength is not 16. */
+ sdc2_clk: sdc2-clk {
+ pinconf {
+ pins = "sdc2_clk";
+ bias-disable;
+ drive-strength = <16>;
+ };
+ };
+
+ sdc2_cmd: sdc2-cmd {
+ pinconf {
+ pins = "sdc2_cmd";
+ bias-pull-up;
+ drive-strength = <16>;
+ };
+ };
+
+ sdc2_data: sdc2-data {
+ pinconf {
+ pins = "sdc2_data";
+ bias-pull-up;
+ drive-strength = <16>;
+ };
+ };
+
+ sd_cd_odl: sd-cd-odl {
+ pinmux {
+ pins = "gpio126";
+ function = "gpio";
+ };
+
+ pinconf {
+ pins = "gpio126";
+ bias-pull-up;
+ drive-strength = <2>;
+ };
+ };
+};
--
2.18.1
