bcm53xx: backport upstream bcm53xx spi driver changes

One replaces our local patch and another is just for keeping driver in
sync (license change).

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 52 insertions, 0 deletions

diff --git a/target/linux/bcm53xx/patches-4.4/084-0001-spi-bcm53xx-set-of_node-to-let-DT-specify-device-s.patch b/target/linux/bcm53xx/patches-4.4/084-0001-spi-bcm53xx-set-of_node-to-let-DT-specify-device-s.patch
new file mode 100644
index 0000000000..39ebf7286b
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.4/084-0001-spi-bcm53xx-set-of_node-to-let-DT-specify-device-s.patch
@@ -0,0 +1,52 @@
+From 78d759daceaf0a7058f37c4142bdca9948b6d987 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 29 Dec 2016 17:27:55 +0100
+Subject: [PATCH] spi: bcm53xx: set of_node to let DT specify device(s)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Setting of_node of master's dev seems to be a common way of letting it
+work nicely with DT. This allows specifying device there instead of
+hardcoding one in the driver code.
+
+This was successfully tested with commit 1b47b98acce2 ("ARM: BCM5301X:
+Add DT entry for SPI controller and NOR flash")
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Mark Brown <broonie@kernel.org>
+---
+ drivers/spi/spi-bcm53xx.c | 8 +-------
+ 1 file changed, 1 insertion(+), 7 deletions(-)
+
+--- a/drivers/spi/spi-bcm53xx.c
++++ b/drivers/spi/spi-bcm53xx.c
+@@ -275,10 +275,6 @@ static int bcm53xxspi_flash_read(struct
+  * BCMA
+  **************************************************/
+ 
+-static struct spi_board_info bcm53xx_info = {
+-	.modalias	= "bcm53xxspiflash",
+-};
+-
+ static const struct bcma_device_id bcm53xxspi_bcma_tbl[] = {
+ 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_QSPI, BCMA_ANY_REV, BCMA_ANY_CLASS),
+ 	{},
+@@ -311,6 +307,7 @@ static int bcm53xxspi_bcma_probe(struct
+ 	b53spi->bspi = true;
+ 	bcm53xxspi_disable_bspi(b53spi);
+ 
++	master->dev.of_node = dev->of_node;
+ 	master->transfer_one = bcm53xxspi_transfer_one;
+ 	if (b53spi->mmio_base)
+ 		master->spi_flash_read = bcm53xxspi_flash_read;
+@@ -324,9 +321,6 @@ static int bcm53xxspi_bcma_probe(struct
+ 		return err;
+ 	}
+ 
+-	/* Broadcom SoCs (at least with the CC rev 42) use SPI for flash only */
+-	spi_new_device(master, &bcm53xx_info);
+-
+ 	return 0;
+ }
+