arm64: dts: qcom: sc7280: Add nodes for eMMC and SD card

Add nodes for eMMC and SD card on sc7280.

---

This change is depends on the below patch series:
https://lore.kernel.org/patchwork/cover/1418814/

Changes since V5:
- Modified sdhci1_opp_table: sdhc1-opp-table and sdhc2_opp_table:
sdhc2-opp-table tag names as per Stephen Boyd suggestion.

Changes since V4:
- Included gpio header in proper order and moved default pins configs to soc file as suggested by Stephen Boyd.

Changes since V3:
- Changed pinconfig names as suggested by Konrad Dybcio.
- Removed extra lines and aligned some of lines as suggested by Bjorn Andersson.

Change since V2:
- Added leading zero's for register address and "qcom,sc7280-sdhci" string in compatible as suggested by Stephen Boyd and Doug.
- Removed max-frequency flag, no-mmc and no-sdio flags for Sd card as suggested by Doug and Stephen Boyd.
- Moved non-removable, no-sd, no-sdio and some pin config changes from soc to board dts file as suggested by Doug.
- Removed sleep state for CD line and drive-strength for input pins as suggested by Doug.
- Updated bus vote numbers for eMMC and SD card.

Changes since V1:
- Moved SDHC nodes as suggested by Bjorn Andersson.
- Dropped "pinconf-" prefix as suggested by Bjorn Andersson.
- Removed extra newlines as suggested by Konrad Dybcio.
- Changed sd-cd pin to bias-pull-up in sdc2_off as suggested by Veerabhadrarao Badiganti.
- Added bandwidth votes for eMMC and SD card.

---
 arch/arm64/boot/dts/qcom/sc7280-idp.dts |  71 ++++++++++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi    | 185 ++++++++++++++++++++++++++++++++
 2 files changed, 256 insertions(+)

index 3900cfc..1be822c 100644
@@ -7,6 +7,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/iio/qcom,spmi-adc7-pmr735a.h>
 #include <dt-bindings/iio/qcom,spmi-adc7-pmr735b.h>
 #include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>

@@ -272,6 +273,34 @@
 	status = "okay";
 };
 
+&sdhc_1 {
+	status = "okay";
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc1_on>;
+	pinctrl-1 = <&sdc1_off>;
+
+	non-removable;
+	no-sd;
+	no-sdio;
+
+	vmmc-supply = <&vreg_l7b_2p9>;
+	vqmmc-supply = <&vreg_l19b_1p8>;
+};
+
+&sdhc_2 {
+	status = "okay";
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc2_on>;
+	pinctrl-1 = <&sdc2_off>;
+
+	vmmc-supply = <&vreg_l9c_2p9>;
+	vqmmc-supply = <&vreg_l6c_2p9>;
+
+	cd-gpios = <&tlmm 91 GPIO_ACTIVE_LOW>;
+};
+
 &uart5 {
 	status = "okay";
 };

@@ -291,3 +320,45 @@
 		bias-pull-up;
 	};
 };
+
+&sdc1_on {
+	clk {
+		bias-disable;
+		drive-strength = <16>;
+	};
+
+	cmd {
+		bias-pull-up;
+		drive-strength = <10>;
+	};
+
+	data {
+		bias-pull-up;
+		drive-strength = <10>;
+	};
+
+	rclk {
+		bias-pull-down;
+	};
+};
+
+&sdc2_on {
+	clk {
+		bias-disable;
+		drive-strength = <16>;
+	};
+
+	cmd {
+		bias-pull-up;
+		drive-strength = <10>;
+	};
+
+	data {
+		bias-pull-up;
+		drive-strength = <10>;
+	};
+
+	sd-cd {
+		bias-pull-up;
+	};
+};

QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member 
of Code Aurora Forum, hosted by The Linux Foundation

Quoting Shaik Sajida Bhanu (2021-07-13 00:06:11)