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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2020-04-10 10:47:05 +0800 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2020-05-07 12:53:06 +0200 |
| commit | cddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch) | |
| tree | 392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch | |
| parent | d1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff) | |
| download | upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.tar.gz upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.tar.bz2 upstream-cddd4591404fb4c53dc0b3c0b15b942cdbed4356.zip | |
layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/
For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.
The patches are sorted into the following categories:
301-arch-xxxx
302-dts-xxxx
303-core-xxxx
701-net-xxxx
801-audio-xxxx
802-can-xxxx
803-clock-xxxx
804-crypto-xxxx
805-display-xxxx
806-dma-xxxx
807-gpio-xxxx
808-i2c-xxxx
809-jailhouse-xxxx
810-keys-xxxx
811-kvm-xxxx
812-pcie-xxxx
813-pm-xxxx
814-qe-xxxx
815-sata-xxxx
816-sdhc-xxxx
817-spi-xxxx
818-thermal-xxxx
819-uart-xxxx
820-usb-xxxx
821-vfio-xxxx
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch b/target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch new file mode 100644 index 0000000000..58f44e86b0 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/819-uart-0007-MLK-15094-tty-serial-fsl_lpuart-check-dma_tx_in_prog.patch @@ -0,0 +1,29 @@ +From 31a4e41820cdaad9d4c151beefe5ab0698f4865a Mon Sep 17 00:00:00 2001 +From: Fugang Duan <fugang.duan@nxp.com> +Date: Thu, 15 Jun 2017 16:48:31 +0800 +Subject: [PATCH] MLK-15094 tty: serial: fsl_lpuart: check dma_tx_in_progress + in callback + +There have a corner case that tx DMA .callback() is coming after +.flush_buffer(), then .callback() should check dma_tx_in_progress +flag and return in directly. + +Signed-off-by: Fugang Duan <fugang.duan@nxp.com> +Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com> +--- + drivers/tty/serial/fsl_lpuart.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/tty/serial/fsl_lpuart.c ++++ b/drivers/tty/serial/fsl_lpuart.c +@@ -490,6 +490,10 @@ static void lpuart_dma_tx_complete(void + unsigned long flags; + + spin_lock_irqsave(&sport->port.lock, flags); ++ if (!sport->dma_tx_in_progress) { ++ spin_unlock_irqrestore(&sport->port.lock, flags); ++ return; ++ } + + dma_unmap_sg(sport->port.dev, sgl, sport->dma_tx_nents, DMA_TO_DEVICE); + |