RZ/G2UL SMARC EVK has sci pins exposed through PMOD1 interface. On testing, found that irq handler, tx and rx is broken. This series fixes these issues. v2->v3: * Cced stable@xxxxxxxxxxxxxxx * Added Rx, Tx and Tx end interrupt handler patch. v1->v2: * Replaced the wrong fixes tag * Added a simpler check in sci_init_single() and added a check in probe to catch invalid interrupt count. Tested the SCI0 interface on RZ/G2UL by connecting to PMOD USBUART. 39: 0 GICv3 437 Level 1004d000.serial:rx err 40: 12 GICv3 438 Edge 1004d000.serial:rx full 41: 70 GICv3 439 Edge 1004d000.serial:tx empty 42: 18 GICv3 440 Level 1004d000.serial:tx end Overlay compilation: -------------------- Enable CONFIG_OF_OVERLAY in defconfig cpp -nostdinc -I include -I arch -undef -x assembler-with-cpp \ arch/arm64/boot//dts/renesas/r9a07g043u11-smarc.dts \ r9a07g043u11-smarc.dts.tmp dtc -@ -i include/ -I dts -O dtb -o arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dtb r9a07g043u11-smarc.dts.tmp cpp -nostdinc -I include -I arch -undef -x assembler-with-cpp \ arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtso \ r9a07g043-smarc.dtso.tmp dtc -@ -i include/ -I dts -O dtb -o arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtbo r9a07g043-smarc.dtso.tmp Applying overlay: ----------------- apply_overlay=tftp 0x48000000 RZ-G2UL/r9a07g043u11-smarc.dtb;fdt addr 0x48000000;fdt resize 8192;tftp 0x4A000000 RZ-G2UL/r9a07g043-smarc.dtbo;fdt apply 0x4A000000 bootcmd-overlay=run apply_overlay;tftp 0x48080000 RZ-G2UL/Image;booti 0x48080000 - 0x48000000 Biju Das (5): tty: serial: sh-sci: Fix transmit end interrupt handler tty: serial: sh-sci: Fix Rx on RZ/G2L SCI tty: serial: sh-sci: Fix Tx on SCI IP tty: serial: sh-sci: Add support for tx end interrupt handling arm64: dts: renesas: r9a07g044: Enable sci0 nodes using dt overlay arch/arm64/boot/dts/renesas/Makefile | 1 + .../boot/dts/renesas/r9a07g043-smarc.dtso | 45 ++++++++++++ drivers/tty/serial/sh-sci.c | 72 +++++++++++++++++-- drivers/tty/serial/sh-sci.h | 3 + 4 files changed, 115 insertions(+), 6 deletions(-) create mode 100644 arch/arm64/boot/dts/renesas/r9a07g043-smarc.dtso -- 2.25.1
