[PATCH v1 3/3] arm64: dts: qcom: sdm845: Add SD nodes for sdm845-mtp

[Evan Green]

Enable support for the micro SD slot on the MTP.

Signed-off-by: Evan Green <evgr...@chromium.org>
---

 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