kernel: delete Linux 5.4 config and patches

[openwrt/staging/chunkeey.git] / target / linux / layerscape / patches-5.4 / 806-dma-0014-MLK-18248-dma-fsl-edma-v3-avoid-touch-unused-edma-ch.patch

diff --git a/target/linux/layerscape/patches-5.4/806-dma-0014-MLK-18248-dma-fsl-edma-v3-avoid-touch-unused-edma-ch.patch b/target/linux/layerscape/patches-5.4/806-dma-0014-MLK-18248-dma-fsl-edma-v3-avoid-touch-unused-edma-ch.patch
deleted file mode 100644 (file)
index 828d673..0000000
--- a/target/linux/layerscape/patches-5.4/806-dma-0014-MLK-18248-dma-fsl-edma-v3-avoid-touch-unused-edma-ch.patch
+++ /dev/null
@@ -1,77 +0,0 @@
-From 13d8031dd480b23620923c39400831f7edc68276 Mon Sep 17 00:00:00 2001
-From: Robin Gong <yibin.gong@nxp.com>
-Date: Thu, 10 May 2018 01:02:01 +0800
-Subject: [PATCH] MLK-18248: dma: fsl-edma-v3: avoid touch unused edma channel
-
-Avoid touch unused edma channel register in susped/resume, otherwise,
-kernel crash if XRDC enabled in scfw.
-
-Signed-off-by: Robin Gong <yibin.gong@nxp.com>
-Acked-by: Fugang Duan <fugang.duan@nxp.com>
-(cherry picked from commit aa221c4aba34c6ce1ce5f561fa073bb8297cc0ff)
----
- drivers/dma/fsl-edma-v3.c | 11 +++++++++++
- 1 file changed, 11 insertions(+)
-
---- a/drivers/dma/fsl-edma-v3.c
-+++ b/drivers/dma/fsl-edma-v3.c
-@@ -149,6 +149,7 @@ struct fsl_edma3_chan {
-       enum dma_status                 status;
-       enum fsl_edma3_pm_state         pm_state;
-       bool                            idle;
-+      bool                            used;
-       struct fsl_edma3_engine         *edma3;
-       struct fsl_edma3_desc           *edesc;
-       struct fsl_edma3_slave_config   fsc;
-@@ -226,6 +227,8 @@ static void fsl_edma3_enable_request(str
- 
-       val |= EDMA_CH_CSR_ERQ;
-       writel(val, addr + EDMA_CH_CSR);
-+
-+      fsl_chan->used = true;
- }
- 
- static void fsl_edma3_disable_request(struct fsl_edma3_chan *fsl_chan)
-@@ -281,6 +284,7 @@ static int fsl_edma3_terminate_all(struc
-       fsl_edma3_disable_request(fsl_chan);
-       fsl_chan->edesc = NULL;
-       fsl_chan->idle = true;
-+      fsl_chan->used = false;
-       vchan_get_all_descriptors(&fsl_chan->vchan, &head);
-       spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
-       vchan_dma_desc_free_list(&fsl_chan->vchan, &head);
-@@ -805,6 +809,7 @@ static void fsl_edma3_free_chan_resource
-       vchan_dma_desc_free_list(&fsl_chan->vchan, &head);
-       dma_pool_destroy(fsl_chan->tcd_pool);
-       fsl_chan->tcd_pool = NULL;
-+      fsl_chan->used = false;
- }
- 
- static int fsl_edma3_probe(struct platform_device *pdev)
-@@ -900,6 +905,7 @@ static int fsl_edma3_probe(struct platfo
- 
-               fsl_chan->vchan.desc_free = fsl_edma3_free_desc;
-               vchan_init(&fsl_chan->vchan, &fsl_edma3->dma_dev);
-+              fsl_chan->used = false;
-       }
- 
-       mutex_init(&fsl_edma3->fsl_edma3_mutex);
-@@ -969,6 +975,8 @@ static int fsl_edma3_suspend_late(struct
-               fsl_chan = &fsl_edma->chans[i];
-               addr = fsl_chan->membase;
- 
-+              if (!fsl_chan->used)
-+                      continue;
-               spin_lock_irqsave(&fsl_chan->vchan.lock, flags);
-               fsl_edma->edma_regs[i].csr = readl(addr + EDMA_CH_CSR);
-               fsl_edma->edma_regs[i].sbr = readl(addr + EDMA_CH_SBR);
-@@ -996,6 +1004,9 @@ static int fsl_edma3_resume_early(struct
-               fsl_chan = &fsl_edma->chans[i];
-               addr = fsl_chan->membase;
- 
-+              if (!fsl_chan->used)
-+                      continue;
-+
-               spin_lock_irqsave(&fsl_chan->vchan.lock, flags);
-               writel(fsl_edma->edma_regs[i].csr, addr + EDMA_CH_CSR);
-               writel(fsl_edma->edma_regs[i].sbr, addr + EDMA_CH_SBR);