Driver improvements (#535)

- New drivers:
  - SD SPI
  - spi_peripheral
  - touch_placeholder
  - display_placeholder
- Devicetree compiler:
  - Implement phandle-arrays
  - Implement device addresses
- Add placeholder drivers to all devices with a SPI display
- SPI driver: add `cs-pins` and set them to high on driver start
- FileSystem: add `file_system_set_owner()` and `file_system_get_owner()`
- File locking is now checking if the related `FileSystem` is part of a shared SPI bus
- Add `device_get_child_count()`
- SDMMC driver: Remove default of `slot` value
- Fix for Crowpanel Basic 3.5" display (add delay to booting)
- Fix for LilyGO T-HMI SD card mounting (delayed mounting by disabling it initially in the dts)

Devices/m5stack-cardputer/Source/Configuration.cpp

@@ -1,9 +1,7 @@
 #include "devices/Display.h"
-#include "devices/SdCard.h"
 #include "devices/CardputerEncoder.h"
 #include "devices/CardputerKeyboard.h"
 #include "devices/CardputerPower.h"
-#include <driver/gpio.h>
 
 #include <PwmBacklight.h>
 #include <Tactility/hal/Configuration.h>
@@ -16,7 +14,6 @@ static bool initBoot() {
 
 static DeviceVector createDevices() {
     return {
-        createSdCard(),
         createDisplay(),
         std::make_shared<CardputerKeyboard>(),
         std::make_shared<CardputerEncoder>(),

Devices/m5stack-cardputer/Source/devices/SdCard.cpp

@@ -1,29 +0,0 @@
-#include "SdCard.h"
-
-#include <tactility/device.h>
-#include <Tactility/hal/sdcard/SpiSdCardDevice.h>
-
-constexpr auto SDCARD_PIN_CS = GPIO_NUM_12;
-
-using tt::hal::sdcard::SpiSdCardDevice;
-
-std::shared_ptr<SdCardDevice> createSdCard() {
-    auto configuration = std::make_unique<SpiSdCardDevice::Config>(
-        SDCARD_PIN_CS,
-        GPIO_NUM_NC,
-        GPIO_NUM_NC,
-        GPIO_NUM_NC,
-        SdCardDevice::MountBehaviour::AtBoot,
-        nullptr,
-        std::vector<gpio_num_t>(),
-        SPI3_HOST
-    );
-
-    auto* spi_controller = device_find_by_name("spi1");
-    check(spi_controller, "spi1 not found");
-
-    return std::make_shared<SpiSdCardDevice>(
-        std::move(configuration),
-        spi_controller
-    );
-}

Devices/m5stack-cardputer/Source/devices/SdCard.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include <Tactility/hal/sdcard/SdCardDevice.h>
-#include <memory>
-
-using tt::hal::sdcard::SdCardDevice;
-
-std::shared_ptr<SdCardDevice> createSdCard();

Devices/m5stack-cardputer/m5stack,cardputer.dts

@@ -8,6 +8,8 @@
 #include <tactility/bindings/esp32_i2s.h>
 #include <tactility/bindings/esp32_spi.h>
 #include <tactility/bindings/esp32_uart.h>
+#include <tactility/bindings/esp32_sdspi.h>
+#include <tactility/bindings/display_placeholder.h>
 
 // Reference: https://docs.m5stack.com/en/core/Cardputer
 / {
@@ -33,19 +35,30 @@
 		i2cClockFrequency = <400000>;
 	};
 
-	display_spi: spi0 {
+	spi0 {
 		compatible = "espressif,esp32-spi";
 		host = <SPI2_HOST>;
+		cs-gpios = <&gpio0 37 GPIO_FLAG_NONE>;
 		pin-mosi = <&gpio0 35 GPIO_FLAG_NONE>;
 		pin-sclk = <&gpio0 36 GPIO_FLAG_NONE>;
+	
+		display {
+			compatible = "display-placeholder";
+		};
 	};
 
-	sdcard_spi: spi1 {
+	spi1 {
 		compatible = "espressif,esp32-spi";
 		host = <SPI3_HOST>;
+		cs-gpios = <&gpio0 12 GPIO_FLAG_NONE>;
 		pin-mosi = <&gpio0 14 GPIO_FLAG_NONE>;
 		pin-miso = <&gpio0 39 GPIO_FLAG_NONE>;
 		pin-sclk = <&gpio0 40 GPIO_FLAG_NONE>;
+	
+		sdcard@0 {
+			compatible = "espressif,esp32-sdspi";
+			frequency-khz = <20000>;
+		};
 	};
 
 	// Speaker and microphone