[PATCH V4 2/3] arm64: dts: qcom: monaco-evk: Enable SDHCI for SD Card via overlay

[Monish Chunara]

The monaco EVK board supports either eMMC or SD-card, but only one can
be active at a time.

Make the base monaco-evk.dtsi storage-agnostic by removing eMMC-specific
configuration from it. This allows storage media selection to be handled
through device tree overlays.

Introduce an SD card overlay that enables the SD Host Controller
Interface (SDHCI) for SD-based storage on the monaco EVK board.

Signed-off-by: Monish Chunara <monish.chunara@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/Makefile             |  4 ++
 .../boot/dts/qcom/monaco-evk-sd-card.dtso     | 72 +++++++++++++++++++
 arch/arm64/boot/dts/qcom/monaco-evk.dts       | 11 ---
 3 files changed, 76 insertions(+), 11 deletions(-)
 create mode 100644 arch/arm64/boot/dts/qcom/monaco-evk-sd-card.dtso

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index e05414290d8e..20e5a0fe7dbe 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -70,6 +70,10 @@ monaco-evk-el2-dtbs := monaco-evk.dtb monaco-el2.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-evk-el2.dtb
 monaco-evk-ifp-mezzanine-dtbs	:= monaco-evk.dtb monaco-evk-ifp-mezzanine.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-evk-ifp-mezzanine.dtb
+
+monaco-evk-sd-card-dtbs := monaco-evk.dtb monaco-evk-sd-card.dtbo
+dtb-$(CONFIG_ARCH_QCOM) += monaco-evk-sd-card.dtb
+
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8216-samsung-fortuna3g.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-acer-a1-724.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-alcatel-idol347.dtb
diff --git a/arch/arm64/boot/dts/qcom/monaco-evk-sd-card.dtso b/arch/arm64/boot/dts/qcom/monaco-evk-sd-card.dtso
new file mode 100644
index 000000000000..bc4ea12587a2
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/monaco-evk-sd-card.dtso
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+        vmmc_sdc: regulator-mmc-sdc {
+                compatible = "regulator-fixed";
+
+                regulator-name = "vmmc_sdc";
+                regulator-min-microvolt = <2950000>;
+                regulator-max-microvolt = <2950000>;
+        };
+
+        vreg_sdc: regulator-sdc {
+		compatible = "regulator-gpio";
+
+		regulator-name = "vreg_sdc";
+		regulator-type = "voltage";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2950000>;
+
+		gpios = <&expander1 7 GPIO_ACTIVE_HIGH>;
+		states = <1800000 1>, <2950000 0>;
+
+		startup-delay-us = <100>;
+        };
+};
+
+&sdhc_1 {
+	vmmc-supply = <&vmmc_sdc>;
+	vqmmc-supply = <&vreg_sdc>;
+
+	pinctrl-0 = <&sdc1_state_on>, <&sd_cd>;
+	pinctrl-1 = <&sdc1_state_off>, <&sd_cd>;
+	pinctrl-names = "default", "sleep";
+
+	cap-sd-highspeed;
+	no-1-8-v;
+
+	bus-width = <4>;
+	cd-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
+	no-mmc;
+	no-sdio;
+
+	status = "okay";
+};
+
+&sdhc1_opp_table {
+	opp-100000000 {
+		opp-hz = /bits/ 64 <100000000>;
+		required-opps = <&rpmhpd_opp_low_svs>;
+	};
+
+	opp-202000000 {
+		opp-hz = /bits/ 64 <202000000>;
+		required-opps = <&rpmhpd_opp_svs_l1>;
+	};
+};
+
+&tlmm {
+        sd_cd: sd-cd-state {
+                pins = "gpio11";
+                function = "gpio";
+                bias-pull-up;
+        };
+};
diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 9d17ef7d2caf..436727350dd3 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -694,17 +694,6 @@ &remoteproc_gpdsp {
 	status = "okay";
 };
 
-&sdhc_1 {
-	vmmc-supply = <&vreg_l8a>;
-	vqmmc-supply = <&vreg_s2s>;
-
-	no-sd;
-	no-sdio;
-	non-removable;
-
-	status = "okay";
-};
-
 &serdes0 {
 	phy-supply = <&vreg_l4a>;
 
-- 
2.34.1