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)

TactilityKernel/include/tactility/drivers/display.h

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <tactility/device.h>
+
+extern const struct DeviceType DISPLAY_TYPE;
+
+#ifdef __cplusplus
+}
+#endif

TactilityKernel/include/tactility/drivers/display_placeholder.h

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct DisplayPlaceholderConfig {
+    uint8_t _unused;
+};
+
+#ifdef __cplusplus
+}
+#endif

TactilityKernel/include/tactility/drivers/sdcard.h

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <tactility/device.h>
+
+extern const struct DeviceType SDCARD_TYPE;
+
+#ifdef __cplusplus
+}
+#endif

TactilityKernel/include/tactility/drivers/spi_peripheral.h

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <stdint.h>
+#include <tactility/device.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct SpiPeripheralConfig {
+    uint8_t _unused;
+};
+
+extern const struct DeviceType SPI_PERIPHERAL_TYPE;
+
+#ifdef __cplusplus
+}
+#endif

TactilityKernel/include/tactility/drivers/touch.h

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <tactility/device.h>
+
+extern const struct DeviceType TOUCH_TYPE;
+
+#ifdef __cplusplus
+}
+#endif

TactilityKernel/include/tactility/drivers/touch_placeholder.h

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct TouchPlaceholderConfig {
+    uint8_t _unused;
+};
+
+#ifdef __cplusplus
+}
+#endif