bcm27xx: remove linux 4.19 support

[openwrt/staging/luka.git] / target / linux / bcm27xx / patches-4.19 / 950-0013-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch

diff --git a/target/linux/bcm27xx/patches-4.19/950-0013-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch b/target/linux/bcm27xx/patches-4.19/950-0013-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
deleted file mode 100644 (file)
index 05bc4a0..0000000
--- a/target/linux/bcm27xx/patches-4.19/950-0013-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
+++ /dev/null
@@ -1,101 +0,0 @@
-From 10d11b6b5410b9d31845efd23147fd08477a5151 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
-Date: Sat, 3 Oct 2015 22:22:55 +0200
-Subject: [PATCH] dmaengine: bcm2835: Load driver early and support
- legacy API
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Load driver early since at least bcm2708_fb doesn't support deferred
-probing and even if it did, we don't want the video driver deferred.
-Support the legacy DMA API which is needed by bcm2708_fb.
-Don't mask out channel 2.
-
-Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
----
- drivers/dma/Kconfig       |  2 +-
- drivers/dma/bcm2835-dma.c | 26 +++++++++++++++++++++++++-
- 2 files changed, 26 insertions(+), 2 deletions(-)
-
---- a/drivers/dma/Kconfig
-+++ b/drivers/dma/Kconfig
-@@ -131,7 +131,7 @@ config COH901318
- 
- config DMA_BCM2835
-       tristate "BCM2835 DMA engine support"
--      depends on ARCH_BCM2835
-+      depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709
-       select DMA_ENGINE
-       select DMA_VIRTUAL_CHANNELS
- 
---- a/drivers/dma/bcm2835-dma.c
-+++ b/drivers/dma/bcm2835-dma.c
-@@ -37,6 +37,7 @@
- #include <linux/interrupt.h>
- #include <linux/list.h>
- #include <linux/module.h>
-+#include <linux/platform_data/dma-bcm2708.h>
- #include <linux/platform_device.h>
- #include <linux/slab.h>
- #include <linux/io.h>
-@@ -48,6 +49,7 @@
- 
- #define BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED 14
- #define BCM2835_DMA_CHAN_NAME_SIZE 8
-+#define BCM2835_DMA_BULK_MASK  BIT(0)
- 
- struct bcm2835_dmadev {
-       struct dma_device ddev;
-@@ -914,6 +916,9 @@ static int bcm2835_dma_probe(struct plat
-       base = devm_ioremap_resource(&pdev->dev, res);
-       if (IS_ERR(base))
-               return PTR_ERR(base);
-+      rc = bcm_dmaman_probe(pdev, base, BCM2835_DMA_BULK_MASK);
-+      if (rc)
-+              dev_err(&pdev->dev, "Failed to initialize the legacy API\n");
- 
-       od->base = base;
- 
-@@ -952,6 +957,9 @@ static int bcm2835_dma_probe(struct plat
-               goto err_no_dma;
-       }
- 
-+      /* Channel 0 is used by the legacy API */
-+      chans_available &= ~BCM2835_DMA_BULK_MASK;
-+
-       /* get irqs for each channel that we support */
-       for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
-               /* skip masked out channels */
-@@ -1026,6 +1034,7 @@ static int bcm2835_dma_remove(struct pla
- {
-       struct bcm2835_dmadev *od = platform_get_drvdata(pdev);
- 
-+      bcm_dmaman_remove(pdev);
-       dma_async_device_unregister(&od->ddev);
-       bcm2835_dma_free(od);
- 
-@@ -1041,7 +1050,22 @@ static struct platform_driver bcm2835_dm
-       },
- };
- 
--module_platform_driver(bcm2835_dma_driver);
-+static int bcm2835_dma_init(void)
-+{
-+      return platform_driver_register(&bcm2835_dma_driver);
-+}
-+
-+static void bcm2835_dma_exit(void)
-+{
-+      platform_driver_unregister(&bcm2835_dma_driver);
-+}
-+
-+/*
-+ * Load after serial driver (arch_initcall) so we see the messages if it fails,
-+ * but before drivers (module_init) that need a DMA channel.
-+ */
-+subsys_initcall(bcm2835_dma_init);
-+module_exit(bcm2835_dma_exit);
- 
- MODULE_ALIAS("platform:bcm2835-dma");
- MODULE_DESCRIPTION("BCM2835 DMA engine driver");