1 files changed, 0 insertions, 68 deletions
diff --git a/target/linux/pistachio/patches-5.15/101-dmaengine-img-mdc-Handle-early-status-read.patch b/target/linux/pistachio/patches-5.15/101-dmaengine-img-mdc-Handle-early-status-read.patch
deleted file mode 100644
index 031a4e3e5e..0000000000
--- a/target/linux/pistachio/patches-5.15/101-dmaengine-img-mdc-Handle-early-status-read.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-From a2dd154377c9aa6ddda00d39b8c7c334e4fa16ff Mon Sep 17 00:00:00 2001
-From: Damien Horsley <damien.horsley@imgtec.com>
-Date: Tue, 22 Mar 2016 12:46:09 +0000
-Subject: dmaengine: img-mdc: Handle early status read
-
-It is possible that mdc_tx_status may be called before the first
-node has been read from memory.
-
-In this case, the residue value stored in the register is undefined.
-Return the transfer size instead.
-
-Signed-off-by: Damien Horsley <damien.horsley@imgtec.com>
----
- drivers/dma/img-mdc-dma.c | 40 ++++++++++++++++++++++++----------------
- 1 file changed, 24 insertions(+), 16 deletions(-)
-
---- a/drivers/dma/img-mdc-dma.c
-+++ b/drivers/dma/img-mdc-dma.c
-@@ -618,25 +618,33 @@ static enum dma_status mdc_tx_status(str
- 			(MDC_CMDS_PROCESSED_CMDS_DONE_MASK + 1);
- 
- 		/*
--		 * If the command loaded event hasn't been processed yet, then
--		 * the difference above includes an extra command.
-+		 * If the first node has not yet been read from memory,
-+		 * the residue register value is undefined
- 		 */
--		if (!mdesc->cmd_loaded)
--			cmds--;
--		else
--			cmds += mdesc->list_cmds_done;
--
--		bytes = mdesc->list_xfer_size;
--		ldesc = mdesc->list;
--		for (i = 0; i < cmds; i++) {
--			bytes -= ldesc->xfer_size + 1;
--			ldesc = ldesc->next_desc;
--		}
--		if (ldesc) {
--			if (residue != MDC_TRANSFER_SIZE_MASK)
--				bytes -= ldesc->xfer_size - residue;
-+		if (!mdesc->cmd_loaded && !cmds) {
-+			bytes = mdesc->list_xfer_size;
-+		} else {
-+			/*
-+			 * If the command loaded event hasn't been processed yet, then
-+			 * the difference above includes an extra command.
-+			 */
-+			if (!mdesc->cmd_loaded)
-+				cmds--;
- 			else
-+				cmds += mdesc->list_cmds_done;
-+
-+			bytes = mdesc->list_xfer_size;
-+			ldesc = mdesc->list;
-+			for (i = 0; i < cmds; i++) {
- 				bytes -= ldesc->xfer_size + 1;
-+				ldesc = ldesc->next_desc;
-+			}
-+			if (ldesc) {
-+				if (residue != MDC_TRANSFER_SIZE_MASK)
-+					bytes -= ldesc->xfer_size - residue;
-+				else
-+					bytes -= ldesc->xfer_size + 1;
-+			}
- 		}
- 	}
- 	spin_unlock_irqrestore(&mchan->vc.lock, flags);