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Subject: media: s5p-mfc: Load firmware for each run in MFCv12.
Author: Aakarsh Jain <aakarsh.j...@samsung.com>
Date: Wed Dec 13 13:41:04 2023 +0530
In MFCv12, some section of firmware gets updated at each MFC run.
Hence we need to reload original firmware for each run at the start.
Cc: linux-...@tesla.com
Signed-off-by: Smitha T Murthy <smithatmur...@gmail.com>
Signed-off-by: Aakarsh Jain <aakarsh.j...@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
index b49159142c53..503487f34a80 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
@@ -51,8 +51,14 @@ int s5p_mfc_load_firmware(struct s5p_mfc_dev *dev)
* into kernel. */
mfc_debug_enter();
- if (dev->fw_get_done)
- return 0;
+ /* In case of MFC v12, RET_SYS_INIT response from hardware fails due to
+ * incorrect firmware transfer and therefore it is not able to
initialize
+ * the hardware. This causes failed response for SYS_INIT command when
+ * MFC runs for second time. So, load the MFC v12 firmware for each run.
+ */
+ if (!IS_MFCV12(dev))
+ if (dev->fw_get_done)
+ return 0;
for (i = MFC_FW_MAX_VERSIONS - 1; i >= 0; i--) {
if (!dev->variant->fw_name[i])
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