jh71x0: refresh patches and configs once again

[openwrt/staging/wigyori.git] / target / linux / jh71x0 / patches-6.1 / 0113-dmaengine-dw-axi-dmac-Increase-polling-time-to-DMA-t.patch

diff --git a/target/linux/jh71x0/patches-6.1/0113-dmaengine-dw-axi-dmac-Increase-polling-time-to-DMA-t.patch b/target/linux/jh71x0/patches-6.1/0113-dmaengine-dw-axi-dmac-Increase-polling-time-to-DMA-t.patch
new file mode 100644 (file)
index 0000000..dc663c9
--- /dev/null
+++ b/target/linux/jh71x0/patches-6.1/0113-dmaengine-dw-axi-dmac-Increase-polling-time-to-DMA-t.patch
@@ -0,0 +1,34 @@
+From 92c2dc96af79b2f181cc97157ce3ef2be5b48f4c Mon Sep 17 00:00:00 2001
+From: Walker Chen <walker.chen@starfivetech.com>
+Date: Wed, 22 Mar 2023 17:48:19 +0800
+Subject: [PATCH 113/122] dmaengine: dw-axi-dmac: Increase polling time to DMA
+ transmission completion status
+
+The bit DMAC_CHEN[0] is automatically cleared by hardware to disable the
+channel after the last AMBA transfer of the DMA transfer to the
+destination has completed. Software can therefore poll this bit to
+determine when this channel is free for a new DMA transfer.
+This time requires at least 40 milliseconds on JH7110 SoC, otherwise an
+error message 'failed to stop' will be reported.
+
+Signed-off-by: Walker Chen <walker.chen@starfivetech.com>
+---
+ drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+index d74a9541c970..16db0e4637e7 100644
+--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
++++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+@@ -1147,7 +1147,7 @@ static int dma_chan_terminate_all(struct dma_chan *dchan)
+       axi_chan_disable(chan);
+ 
+       ret = readl_poll_timeout_atomic(chan->chip->regs + DMAC_CHEN, val,
+-                                      !(val & chan_active), 1000, 10000);
++                                      !(val & chan_active), 1000, 50000);
+       if (ret == -ETIMEDOUT)
+               dev_warn(dchan2dev(dchan),
+                        "%s failed to stop\n", axi_chan_name(chan));
+-- 
+2.20.1
+