tegra: 6.6: refresh config and patches

Simple refresh to get rid of any fuzz and drop serial patch. With few
bug fixes around tegra serial driver the spurious IRQ didn't appear any
more during test. Let's see how long that'll last.

Signed-off-by: Tomasz Maciej Nowak <[email protected]>

target/linux/tegra/config-6.6

@@ -9,11 +9,11 @@ CONFIG_ARCH_MULTIPLATFORM=y
 CONFIG_ARCH_MULTI_V6_V7=y
 CONFIG_ARCH_MULTI_V7=y
 CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y
-CONFIG_ARCH_NR_GPIO=1024
 CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
 CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_STACKWALK=y
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_ARCH_TEGRA=y
 # CONFIG_ARCH_TEGRA_114_SOC is not set
@@ -23,12 +23,11 @@ CONFIG_ARCH_TEGRA_2x_SOC=y
 CONFIG_ARM=y
 CONFIG_ARM_AMBA=y
 CONFIG_ARM_CPU_SUSPEND=y
-CONFIG_ARM_CRYPTO=y
 CONFIG_ARM_ERRATA_720789=y
 CONFIG_ARM_ERRATA_754327=y
 CONFIG_ARM_ERRATA_764369=y
 CONFIG_ARM_GIC=y
-CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_HAS_GROUP_RELOCS=y
 CONFIG_ARM_HEAVY_MB=y
 CONFIG_ARM_L1_CACHE_SHIFT=6
 CONFIG_ARM_L1_CACHE_SHIFT_6=y
@@ -54,7 +53,11 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_MQ_PCI=y
 CONFIG_BLK_PM=y
 CONFIG_BOUNCE=y
+CONFIG_BUFFER_HEAD=y
 CONFIG_CACHE_L2X0=y
+CONFIG_CC_HAVE_STACKPROTECTOR_TLS=y
+CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
+CONFIG_CC_NO_ARRAY_BOUNDS=y
 CONFIG_CLKSRC_MMIO=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_CLZ_TAB=y
@@ -70,7 +73,10 @@ CONFIG_CMA_SIZE_SEL_MBYTES=y
 # CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
 # CONFIG_CMA_SYSFS is not set
 CONFIG_COMMON_CLK=y
+CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
 CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CONTEXT_TRACKING=y
+CONFIG_CONTEXT_TRACKING_IDLE=y
 CONFIG_CONTIG_ALLOC=y
 CONFIG_CPUFREQ_DT=y
 CONFIG_CPUFREQ_DT_PLATDEV=y
@@ -97,6 +103,8 @@ CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_HAS_ASID=y
 CONFIG_CPU_IDLE=y
 CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CPU_MITIGATIONS=y
 CONFIG_CPU_PABRT_V7=y
 CONFIG_CPU_PM=y
 CONFIG_CPU_RMAP=y
@@ -117,10 +125,14 @@ CONFIG_CRYPTO_DRBG=y
 CONFIG_CRYPTO_DRBG_HMAC=y
 CONFIG_CRYPTO_DRBG_MENU=y
 CONFIG_CRYPTO_ECHAINIV=y
+CONFIG_CRYPTO_GENIV=y
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_JITTERENTROPY=y
 CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
+CONFIG_CRYPTO_LIB_GF128MUL=y
+CONFIG_CRYPTO_LIB_SHA1=y
 CONFIG_CRYPTO_LIB_SHA256=y
+CONFIG_CRYPTO_LIB_UTILS=y
 CONFIG_CRYPTO_LZ4=y
 CONFIG_CRYPTO_LZ4HC=y
 CONFIG_CRYPTO_LZO=y
@@ -133,12 +145,16 @@ CONFIG_CRYPTO_SHA1=y
 CONFIG_CRYPTO_SHA1_ARM=y
 CONFIG_CRYPTO_SHA256=y
 CONFIG_CRYPTO_SHA256_ARM=y
+CONFIG_CRYPTO_SHA3=y
 CONFIG_CRYPTO_SHA512=y
 CONFIG_CRYPTO_SHA512_ARM=y
 CONFIG_CRYPTO_TWOFISH=y
 CONFIG_CRYPTO_TWOFISH_COMMON=y
+CONFIG_CURRENT_POINTER_IN_TPIDRURO=y
 CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DDR=y
 CONFIG_DEBUG_ALIGN_RODATA=y
+CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
 # CONFIG_DEVFREQ_GOV_PASSIVE is not set
 # CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
@@ -152,11 +168,13 @@ CONFIG_DMA_CMA=y
 CONFIG_DMA_ENGINE=y
 CONFIG_DMA_OF=y
 CONFIG_DMA_OPS=y
-CONFIG_DMA_REMAP=y
 CONFIG_DMA_SHARED_BUFFER=y
 CONFIG_DNOTIFY=y
 CONFIG_DRM=y
 CONFIG_DRM_BRIDGE=y
+CONFIG_DRM_DISPLAY_DP_HELPER=y
+CONFIG_DRM_DISPLAY_HDMI_HELPER=y
+CONFIG_DRM_DISPLAY_HELPER=y
 CONFIG_DRM_DP_AUX_BUS=y
 CONFIG_DRM_FBDEV_EMULATION=y
 CONFIG_DRM_FBDEV_OVERALLOC=100
@@ -171,15 +189,16 @@ CONFIG_DRM_TEGRA=y
 CONFIG_DTC=y
 CONFIG_EDAC_ATOMIC_SCRUB=y
 CONFIG_EDAC_SUPPORT=y
+CONFIG_EXCLUSIVE_SYSTEM_RAM=y
 CONFIG_EXT4_FS=y
 CONFIG_EXTCON=y
 CONFIG_F2FS_FS=y
 CONFIG_FB=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_IMAGEBLIT=y
-CONFIG_FB_CMDLINE=y
+CONFIG_FB_CORE=y
 CONFIG_FB_DEFERRED_IO=y
+CONFIG_FB_DMAMEM_HELPERS=y
+CONFIG_FB_SYSMEM_HELPERS=y
+CONFIG_FB_SYSMEM_HELPERS_DEFERRED=y
 CONFIG_FB_SYS_COPYAREA=y
 CONFIG_FB_SYS_FILLRECT=y
 CONFIG_FB_SYS_FOPS=y
@@ -189,6 +208,9 @@ CONFIG_FS_IOMAP=y
 CONFIG_FS_MBCACHE=y
 CONFIG_FUNCTION_ALIGNMENT=0
 CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_FW_LOADER_SYSFS=y
+CONFIG_GCC10_NO_ARRAY_BOUNDS=y
+CONFIG_GCC_ASM_GOTO_OUTPUT_WORKAROUND=y
 CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_GENERIC_ARCH_TOPOLOGY=y
 CONFIG_GENERIC_BUG=y
@@ -206,7 +228,6 @@ CONFIG_GENERIC_IRQ_SHOW=y
 CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
 CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y
 CONFIG_GENERIC_MSI_IRQ=y
-CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_GENERIC_PCI_IOMAP=y
 CONFIG_GENERIC_PHY=y
 CONFIG_GENERIC_PINCONF=y
@@ -222,19 +243,18 @@ CONFIG_GLOB=y
 CONFIG_GPIOLIB_IRQCHIP=y
 CONFIG_GPIO_CDEV=y
 CONFIG_GPIO_TEGRA=y
-CONFIG_HANDLE_DOMAIN_IRQ=y
 CONFIG_HARDEN_BRANCH_PREDICTOR=y
 CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_HAS_DMA=y
 CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
 CONFIG_HAS_IOPORT_MAP=y
 CONFIG_HAVE_SMP=y
 CONFIG_HDMI=y
-CONFIG_HID=y
-CONFIG_HIDRAW=y
-CONFIG_HID_GENERIC=y
 CONFIG_HIGHMEM=y
 CONFIG_HIGHPTE=y
+CONFIG_HOTPLUG_CORE_SYNC=y
+CONFIG_HOTPLUG_CORE_SYNC_DEAD=y
 CONFIG_HOTPLUG_CPU=y
 CONFIG_HWMON=y
 CONFIG_HZ_FIXED=0
@@ -247,15 +267,20 @@ CONFIG_I2C_TEGRA=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_INPUT=y
 CONFIG_INPUT_KEYBOARD=y
+CONFIG_INPUT_VIVALDIFMAP=y
 CONFIG_INTERCONNECT=y
+# CONFIG_IOMMUFD is not set
 CONFIG_IOMMU_API=y
 # CONFIG_IOMMU_DEBUGFS is not set
+# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
 CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
+# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
 CONFIG_IOMMU_IOVA=y
 # CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
 # CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
 CONFIG_IOMMU_SUPPORT=y
 CONFIG_IRQCHIP=y
+CONFIG_IRQSTACKS=y
 CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_DOMAIN_HIERARCHY=y
 CONFIG_IRQ_FORCED_THREADING=y
@@ -273,7 +298,6 @@ CONFIG_LZ4_COMPRESS=y
 CONFIG_LZ4_DECOMPRESS=y
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
-CONFIG_MEMFD_CREATE=y
 CONFIG_MEMORY=y
 CONFIG_MEMORY_ISOLATION=y
 # CONFIG_MFD_ACER_A500_EC is not set
@@ -288,14 +312,19 @@ CONFIG_MMC_SDHCI_IO_ACCESSORS=y
 # CONFIG_MMC_SDHCI_PCI is not set
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_TEGRA=y
+CONFIG_MMU_LAZY_TLB_REFCOUNT=y
 CONFIG_MODULES_USE_ELF_REL=y
 CONFIG_MPILIB=y
 CONFIG_MTD_SPI_NOR=y
 CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
 CONFIG_MUTEX_SPIN_ON_OWNER=y
 CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_SRCU_NMI_SAFE=y
 # CONFIG_NEON is not set
+CONFIG_NET_EGRESS=y
 CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NET_INGRESS=y
+CONFIG_NET_XGRESS=y
 CONFIG_NLS=y
 CONFIG_NR_CPUS=4
 CONFIG_NVMEM=y
@@ -314,6 +343,10 @@ CONFIG_OUTER_CACHE=y
 CONFIG_OUTER_CACHE_SYNC=y
 CONFIG_PADATA=y
 CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PAGE_POOL=y
+CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
+CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
+CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
 CONFIG_PCI=y
 CONFIG_PCIEAER=y
 CONFIG_PCIEASPM=y
@@ -326,7 +359,6 @@ CONFIG_PCIE_PME=y
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_DOMAINS_GENERIC=y
 CONFIG_PCI_MSI=y
-CONFIG_PCI_MSI_IRQ_DOMAIN=y
 CONFIG_PCI_TEGRA=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PGTABLE_LEVELS=2
@@ -348,11 +380,13 @@ CONFIG_PM_OPP=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_GPIO=y
 CONFIG_POWER_SUPPLY=y
+CONFIG_PREEMPT_NONE_BUILD=y
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTP_1588_CLOCK_OPTIONAL=y
 CONFIG_PWM=y
 CONFIG_PWM_SYSFS=y
 CONFIG_PWM_TEGRA=y
+CONFIG_RANDSTRUCT_NONE=y
 CONFIG_RAS=y
 CONFIG_RATIONAL=y
 CONFIG_REGMAP=y
@@ -387,6 +421,7 @@ CONFIG_SG_POOL=y
 CONFIG_SMP=y
 CONFIG_SMP_ON_UP=y
 CONFIG_SND=y
+CONFIG_SND_AUDIO_GRAPH_CARD=y
 # CONFIG_SND_COMPRESS_OFFLOAD is not set
 CONFIG_SND_DMAENGINE_PCM=y
 # CONFIG_SND_DRIVERS is not set
@@ -395,28 +430,41 @@ CONFIG_SND_JACK=y
 CONFIG_SND_JACK_INPUT_DEV=y
 # CONFIG_SND_PCI is not set
 CONFIG_SND_PCM=y
+CONFIG_SND_PCM_ELD=y
+CONFIG_SND_PCM_IEC958=y
 # CONFIG_SND_PROC_FS is not set
 CONFIG_SND_SIMPLE_CARD=y
 CONFIG_SND_SIMPLE_CARD_UTILS=y
 CONFIG_SND_SOC=y
 CONFIG_SND_SOC_AC97_BUS=y
 CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
+CONFIG_SND_SOC_HDMI_CODEC=y
 CONFIG_SND_SOC_I2C_AND_SPI=y
 CONFIG_SND_SOC_TEGRA=y
+# CONFIG_SND_SOC_TEGRA186_ASRC is not set
 # CONFIG_SND_SOC_TEGRA186_DSPK is not set
 CONFIG_SND_SOC_TEGRA20_AC97=y
 CONFIG_SND_SOC_TEGRA20_DAS=y
 CONFIG_SND_SOC_TEGRA20_I2S=y
 CONFIG_SND_SOC_TEGRA20_SPDIF=y
 # CONFIG_SND_SOC_TEGRA210_ADMAIF is not set
+# CONFIG_SND_SOC_TEGRA210_ADX is not set
 # CONFIG_SND_SOC_TEGRA210_AHUB is not set
+# CONFIG_SND_SOC_TEGRA210_AMX is not set
 # CONFIG_SND_SOC_TEGRA210_DMIC is not set
 # CONFIG_SND_SOC_TEGRA210_I2S is not set
+# CONFIG_SND_SOC_TEGRA210_MIXER is not set
+# CONFIG_SND_SOC_TEGRA210_MVC is not set
+# CONFIG_SND_SOC_TEGRA210_OPE is not set
+# CONFIG_SND_SOC_TEGRA210_SFC is not set
 # CONFIG_SND_SOC_TEGRA30_AHUB is not set
 # CONFIG_SND_SOC_TEGRA30_I2S is not set
 # CONFIG_SND_SOC_TEGRA_ALC5632 is not set
+# CONFIG_SND_SOC_TEGRA_AUDIO_GRAPH_CARD is not set
 CONFIG_SND_SOC_TEGRA_MACHINE_DRV=y
+# CONFIG_SND_SOC_TEGRA_MAX98088 is not set
 # CONFIG_SND_SOC_TEGRA_MAX98090 is not set
+# CONFIG_SND_SOC_TEGRA_RT5631 is not set
 # CONFIG_SND_SOC_TEGRA_RT5640 is not set
 # CONFIG_SND_SOC_TEGRA_RT5677 is not set
 # CONFIG_SND_SOC_TEGRA_SGTL5000 is not set
@@ -433,6 +481,7 @@ CONFIG_SOC_TEGRA20_VOLTAGE_COUPLER=y
 CONFIG_SOC_TEGRA_FLOWCTRL=y
 CONFIG_SOC_TEGRA_FUSE=y
 CONFIG_SOC_TEGRA_PMC=y
+CONFIG_SOFTIRQ_ON_OWN_STACK=y
 CONFIG_SOUND=y
 CONFIG_SOUND_OSS_CORE=y
 CONFIG_SOUND_OSS_CORE_PRECLAIM=y
@@ -444,29 +493,33 @@ CONFIG_SPI_MEM=y
 CONFIG_SPI_TEGRA20_SFLASH=y
 CONFIG_SPI_TEGRA20_SLINK=y
 # CONFIG_SPI_TEGRA210_QUAD is not set
-CONFIG_SRCU=y
+CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
 CONFIG_SWP_EMULATE=y
 CONFIG_SYNC_FILE=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TEGRA186_TIMER is not set
 CONFIG_TEGRA20_APB_DMA=y
 CONFIG_TEGRA20_EMC=y
+# CONFIG_TEGRA210_ADMA is not set
+# CONFIG_TEGRA_ACONNECT is not set
 CONFIG_TEGRA_AHB=y
 CONFIG_TEGRA_GMI=y
 CONFIG_TEGRA_HOST1X=y
+CONFIG_TEGRA_HOST1X_CONTEXT_BUS=y
 CONFIG_TEGRA_HOST1X_FIREWALL=y
 CONFIG_TEGRA_IOMMU_GART=y
 # CONFIG_TEGRA_IOMMU_SMMU is not set
 # CONFIG_TEGRA_IVC is not set
 CONFIG_TEGRA_MC=y
-# CONFIG_TEGRA_SOCTHERM is not set
+CONFIG_TEGRA_SOCTHERM=y
 CONFIG_TEGRA_TIMER=y
 CONFIG_TEGRA_WATCHDOG=y
+CONFIG_THREAD_INFO_IN_TASK=y
 CONFIG_TICK_CPU_ACCOUNTING=y
 CONFIG_TIMER_OF=y
 CONFIG_TIMER_PROBE=y
 CONFIG_TREE_RCU=y
 CONFIG_TREE_SRCU=y
-# CONFIG_UACCE is not set
 # CONFIG_UCLAMP_TASK is not set
 CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
 CONFIG_UNWINDER_ARM=y
@@ -481,8 +534,6 @@ CONFIG_USB_EHCI_HCD=y
 # CONFIG_USB_EHCI_HCD_PLATFORM is not set
 CONFIG_USB_EHCI_TEGRA=y
 CONFIG_USB_GADGET=y
-CONFIG_USB_HID=y
-CONFIG_USB_HIDDEV=y
 CONFIG_USB_PHY=y
 CONFIG_USB_ROLE_SWITCH=y
 CONFIG_USB_SUPPORT=y
@@ -495,6 +546,8 @@ CONFIG_USB_ULPI_VIEWPORT=y
 CONFIG_USE_OF=y
 CONFIG_VFP=y
 CONFIG_VFPv3=y
+CONFIG_VIDEO_CMDLINE=y
+CONFIG_VIDEO_NOMODESET=y
 CONFIG_WATCHDOG_CORE=y
 # CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
 CONFIG_XPS=y

target/linux/tegra/patches-6.6/100-serial8250-on-tegra-hsuart-recover-from-spurious-interrupts-due-to-tegra2-silicon-bug.patch

@@ -1,77 +0,0 @@
-From patchwork Fri Jul 13 11:32:42 2018
-Content-Type: text/plain; charset="utf-8"
-MIME-Version: 1.0
-Content-Transfer-Encoding: 7bit
-Subject: serial8250 on tegra hsuart: recover from spurious interrupts due to
- tegra2 silicon bug
-X-Patchwork-Submitter: "David R. Piegdon" <[email protected]>
-X-Patchwork-Id: 943440
-Message-Id: <[email protected]>
-To: [email protected]
-Date: Fri, 13 Jul 2018 11:32:42 +0000
-From: "David R. Piegdon" <[email protected]>
-List-Id: <linux-tegra.vger.kernel.org>
-
-Hi,
-a while back I sent a few mails regarding spurious interrupts in the
-UARTA (hsuart) block of the Tegra2 SoC, when using the 8250 driver for
-it instead of the hsuart driver. After going down a pretty deep
-debugging/testing hole, I think I found a patch that fixes the issue. So
-far testing in a reboot-cycle suggests that the error frequency dropped
-from >3% of all reboots to at least <0.05% of all reboots. Tests
-continue to run over the weekend.
-
-The patch below already is a second iteration; the first did not reset
-the MCR or contain the lines below '// clear interrupts'. This resulted
-in no more spurious interrupts, but in a few % of spurious interrupts
-that were recovered the UART block did not receive any characters any
-more. So further resetting was required to fully reacquire operational
-state of the UART block.
-
-I'd love any comments/suggestions on this!
-
-Cheers,
-
-David
-
---- a/drivers/tty/serial/8250/8250_core.c
-+++ b/drivers/tty/serial/8250/8250_core.c
-@@ -134,6 +134,38 @@ static irqreturn_t serial8250_interrupt(
- 
- 		if (l == i->head && pass_counter++ > PASS_LIMIT)
- 			break;
-+
-+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
-+		if (!handled && (port->type == PORT_TEGRA)) {
-+			/*
-+			 * Fix Tegra 2 CPU silicon bug where sometimes
-+			 * "TX holding register empty" interrupts result in a
-+			 * bad (metastable?) state in Tegras HSUART IP core.
-+			 * Only way to recover seems to be to reset all
-+			 * interrupts as well as the TX queue and the MCR.
-+			 * But we don't want to loose any outgoing characters,
-+			 * so only do it if the RX and TX queues are empty.
-+			 */
-+			unsigned char lsr = port->serial_in(port, UART_LSR);
-+			const unsigned char fifo_empty_mask =
-+						(UART_LSR_TEMT | UART_LSR_THRE);
-+			if (((lsr & (UART_LSR_DR | fifo_empty_mask)) ==
-+							fifo_empty_mask)) {
-+				port->serial_out(port, UART_IER, 0);
-+				port->serial_out(port, UART_MCR, 0);
-+				serial8250_clear_and_reinit_fifos(up);
-+				port->serial_out(port, UART_MCR, up->mcr);
-+				port->serial_out(port, UART_IER, up->ier);
-+				// clear interrupts
-+				serial_port_in(port, UART_LSR);
-+				serial_port_in(port, UART_RX);
-+				serial_port_in(port, UART_IIR);
-+				serial_port_in(port, UART_MSR);
-+				up->lsr_saved_flags = 0;
-+				up->msr_saved_flags = 0;
-+			}
-+		}
-+#endif
- 	} while (l != end);
- 
- 	spin_unlock(&i->lock);

target/linux/tegra/patches-6.6/101-ARM-dtc-tegra-enable-front-panel-leds-in-TrimSlice.patch

@@ -1,5 +1,5 @@
---- a/arch/arm/boot/dts/tegra20-trimslice.dts
-+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
+--- a/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts
++++ b/arch/arm/boot/dts/nvidia/tegra20-trimslice.dts
 @@ -201,16 +201,17 @@
  			conf_ata {
  				nvidia,pins = "ata", "atc", "atd", "ate",
@@ -23,7 +23,7 @@
  				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
  				nvidia,tristate = <TEGRA_PIN_DISABLE>;
  			};
-@@ -396,6 +397,20 @@
+@@ -408,6 +409,20 @@
  		};
  	};