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authorStijn Tintel <stijn@linux-ipv6.be>2018-11-10 13:03:18 +0200
committerStijn Tintel <stijn@linux-ipv6.be>2018-12-18 23:19:21 +0200
commitf5919b65d4c671fd5083838c7a445f319f9a13c8 (patch)
tree2c791d2a5dea5bbbb0b85f86f74afce2647c0726 /target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch
parent822b4c3b250a254e74407056ccfd5c6aa38da162 (diff)
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brcm2708: add kernel 4.14 support
Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch')
-rw-r--r--target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch b/target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch
new file mode 100644
index 0000000000..717c05b677
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0358-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch
@@ -0,0 +1,32 @@
+From 02554ec274e6b76eb827f384c38f9c67fe93cb8a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 3 Jul 2018 14:23:47 +0100
+Subject: [PATCH 358/454] spi: Make GPIO CSs honour the SPI_NO_CS flag
+
+The SPI configuration state includes an SPI_NO_CS flag that disables
+all CS line manipulation, for applications that want to manage their
+own chip selects. However, this flag is ignored by the GPIO CS code
+in the SPI framework.
+
+Correct this omission with a trivial patch.
+
+See: https://github.com/raspberrypi/linux/issues/2169
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/spi/spi.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -729,7 +729,9 @@ static void spi_set_cs(struct spi_device
+ enable = !enable;
+
+ if (gpio_is_valid(spi->cs_gpio)) {
+- gpio_set_value_cansleep(spi->cs_gpio, !enable);
++ /* Honour the SPI_NO_CS flag */
++ if (!(spi->mode & SPI_NO_CS))
++ gpio_set_value(spi->cs_gpio, !enable);
+ /* Some SPI masters need both GPIO CS & slave_select */
+ if ((spi->controller->flags & SPI_MASTER_GPIO_SS) &&
+ spi->controller->set_cs)