[PATCH 3/4] qfw: Spawn ramfb device if its file is present

Alexander Graf
2022-02-27T14:41:26Z

Now that we have a ramfb device driver, let's add the necessary glueing
magic to also spawn it when we find its qfw file node.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
---
drivers/misc/qfw.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/drivers/misc/qfw.c b/drivers/misc/qfw.c
index 7c6ed41f48..fefa0bce86 100644
--- a/drivers/misc/qfw.c
+++ b/drivers/misc/qfw.c
@@ -13,6 +13,7 @@
#include <malloc.h>
#include <qfw.h>
#include <dm.h>
+#include <dm/lists.h>
#include <misc.h>
#include <tables_csum.h>
#if defined(CONFIG_GENERATE_ACPI_TABLE) && !defined(CONFIG_ARM)
@@ -309,6 +310,26 @@ void qfw_read_entry(struct udevice *dev, u16 entry, u32 size, void *address)
qfw_read_entry_io(qdev, entry, size, address);
}

+static void qfw_bind_ramfb(struct udevice *dev)
+{
+#ifdef CONFIG_VIDEO_RAMFB
+ struct fw_file *file;
+ int ret;
+
+ ret = qfw_read_firmware_list(dev);
+ if (ret)
+ return;
+
+ file = qfw_find_file(dev, "etc/ramfb");
+ if (!file) {
+ /* No ramfb available. */
+ return;
+ }
+
+ device_bind_driver(dev, "ramfb", "qfw-ramfb", NULL);
+#endif
+}
+
int qfw_register(struct udevice *dev)
{
struct qfw_dev *qdev = dev_get_uclass_priv(dev);
@@ -325,6 +346,8 @@ int qfw_register(struct udevice *dev)
if (dma_enabled & FW_CFG_DMA_ENABLED)
qdev->dma_present = true;

+ qfw_bind_ramfb(dev);
+
return 0;
}

--
2.32.0