[PATCH v2 18/29] scripts: imx: add imx8m_get_offset_size helper

[Marco Felsch <m.felsch@pengutronix.de>]

No functional change, just move the offset and signed_size calculation
into a dedicated helper.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
Changelog:
v2:
- unchanged
- v1-link: https://lore.barebox.org/barebox/20231010143314.2031253-1-m.felsch@pengutronix.de/T/#t

 scripts/imx/imx.c | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/scripts/imx/imx.c b/scripts/imx/imx.c
index 3cfa046504e3..933019eba449 100644
--- a/scripts/imx/imx.c
+++ b/scripts/imx/imx.c
@@ -325,6 +325,22 @@ static int do_hab(struct config_data *data, int argc, char *argv[])
 	return 0;
 }
 
+static void
+imx8m_get_offset_size(struct config_data *data,
+		      uint32_t *offset, uint32_t *signed_length)
+{
+	unsigned int hdrlen = HEADER_LEN;
+
+	if (flexspi_image(data))
+		hdrlen += FLEXSPI_HEADER_LEN;
+
+	*signed_size = roundup(data->pbl_code_size + hdrlen, 0x1000);
+
+	*offset += data->header_gap;
+	if (data->signed_hdmi_firmware_file)
+		*offset += PLUGIN_HDMI_SIZE;
+}
+
 static int do_hab_blocks(struct config_data *data, int argc, char *argv[])
 {
 	char *str;
@@ -346,17 +362,8 @@ static int do_hab_blocks(struct config_data *data, int argc, char *argv[])
 	/*
 	 * Ensure we only sign the PBL for i.MX8MQ
 	 */
-	if (data->pbl_code_size && cpu_is_mx8m(data)) {
-		unsigned int hdrlen = HEADER_LEN;
-
-		if (flexspi_image(data))
-			hdrlen += FLEXSPI_HEADER_LEN;
-
-		offset += data->header_gap;
-		signed_size = roundup(data->pbl_code_size + hdrlen, 0x1000);
-		if (data->signed_hdmi_firmware_file)
-			offset += PLUGIN_HDMI_SIZE;
-	}
+	if (data->pbl_code_size && cpu_is_mx8m(data))
+		imx8m_get_offset_size(data, &offset, &signed_size)
 
 	if (signed_size > 0) {
 		ret = asprintf(&str, "Blocks = 0x%08x 0x%08x 0x%08x \"%s\"",
-- 
2.39.2