brcm2708: remove linux 4.4 support

[openwrt/staging/yousong.git] / target / linux / brcm2708 / patches-4.4 / 0400-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch

diff --git a/target/linux/brcm2708/patches-4.4/0400-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch b/target/linux/brcm2708/patches-4.4/0400-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
deleted file mode 100644 (file)
index 577e937..0000000
--- a/target/linux/brcm2708/patches-4.4/0400-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
+++ /dev/null
@@ -1,89 +0,0 @@
-From 2de569f13c66b1cfd467f52cce1f01b78422a20b 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
-(but only using the dedicated dma channel 0).
-
-Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
-Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
----
- drivers/dma/Kconfig       |  2 +-
- drivers/dma/bcm2835-dma.c | 27 ++++++++++++++++++++++++++-
- 2 files changed, 27 insertions(+), 2 deletions(-)
-
---- a/drivers/dma/Kconfig
-+++ b/drivers/dma/Kconfig
-@@ -108,7 +108,7 @@ 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>
-@@ -1021,6 +1022,14 @@ static int bcm2835_dma_probe(struct plat
- 
-       dev_dbg(&pdev->dev, "Load BCM2835 DMA engine driver\n");
- 
-+      /* load the legacy api if bit 0 in the mask is cleared */
-+      if ((chans_available & BIT(0)) == 0) {
-+              rc = bcm_dmaman_probe(pdev, base, BIT(0));
-+              if (rc)
-+                      dev_err(&pdev->dev,
-+                              "Failed to initialize the legacy API\n");
-+      }
-+
-       return 0;
- 
- err_no_dma:
-@@ -1032,6 +1041,7 @@ 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);
- 
-@@ -1047,7 +1057,22 @@ 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");