amazon-austin: new device (MR 3251)

Based on hexdump0815 and GjergjiFloychi's work.

[ci:skip-build] Already built successfuly on CI in MR

device/testing/device-amazon-austin/APKBUILD

@@ -0,0 +1,30 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-amazon-austin
+pkgdesc="Amazon Fire 7 (2017)"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="
+	linux-amazon-austin
+	mesa-dri-gallium
+	mkbootimg
+	postmarketos-base
+	msm-fb-refresher
+"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+sha512sums="
+7996497bcd36f7c49ffc83392bc7528f9c8e911356e8eb890d537be2fd3bbef13a678b53b8f57a955503b128a0182db3ed5c95182c616a317d2e43ad6e603640  deviceinfo
+"

device/testing/device-amazon-austin/deviceinfo

@@ -0,0 +1,31 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Amazon Fire 7 (2017)"
+deviceinfo_manufacturer="Amazon"
+deviceinfo_codename="amazon-austin"
+deviceinfo_year="2017"
+deviceinfo_arch="armv7"
+
+# Device related
+deviceinfo_chassis="tablet"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="600"
+deviceinfo_screen_height="1024"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="bootopt=64S3,32N2,32N2 loglevel=4 rootwait ro fsck.repair=yes net.ifnames=0 ipv6.disable=1"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_mtk_mkimage="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x04000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"

device/testing/linux-amazon-austin/APKBUILD

@@ -0,0 +1,86 @@
+# Reference: <https://postmarketos.org/vendorkernel>
+# This port is heavily inspired by https://github.com/GjergjiFloychi/amazon-austin-pmaports
+# Kernel config based on: https://github.com/NixOS/mobile-nixos/blob/master/devices/amazon-austin/kernel/config.armv7
+
+pkgname=linux-amazon-austin
+pkgver=3.10.54
+pkgrel=0
+pkgdesc="Amazon Fire 7 (2017) kernel fork"
+arch="armv7"
+_carch="arm"
+_flavor="amazon-austin"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps pmb:cross-native"
+makedepends="bash bc bison devicepkg-dev flex openssl-dev perl gcc4 linux-headers xz"
+
+# Compiler: GCC 4 (doesn't compile with versions above GCC 4)
+if [ "${CC:0:5}" != "gcc4-" ]; then
+	CC="gcc4-$CC"
+	HOSTCC="gcc4-gcc"
+	CROSS_COMPILE="gcc4-$CROSS_COMPILE"
+fi
+
+# Source from amazon stock kernel
+_repository="linux-amazon-mediatek-mt8127-kernel-source"
+_commit="Fire_7_7th_Gen-5.3.7.3-20210714"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/hexdump0815/$_repository/archive/$_commit.tar.gz
+	$_config
+	gcc4-compile-fixes.patch
+	fix-host-card-inserted.patch
+	silence-hotplug-logspam.patch
+	silence-power-logspam.patch
+	silence-battery-logspam.patch
+	silence-mtkfb-logspam.patch
+	silence-usb-logspam.patch
+	silence-time-logspam.patch
+	silence-i2c-logspam.patch
+	silence-cmb-logspam.patch
+	silence-tz-logspam.patch
+	silence-thermal-logspam.patch
+	silence-uart-logspam.patch
+	silence-vsync-logspam.patch
+"
+builddir="$srcdir/$_repository-$_commit"
+
+prepare() {
+	default_prepare
+	. downstreamkernel_prepare
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor"
+
+	# in case there will be modules at any time, make sure they get installed as well
+	unset LDFLAGS
+	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
+		INSTALL_MOD_PATH="$pkgdir" INSTALL_MOD_STRIP=1 modules_install
+}
+
+sha512sums="
+2017b730bb7e9470084ff812dc3d35cd50040c4a69a9b443b2105393cdc6ce6bb03fc5c80ed8d2a04020103e89675162629fc81d2601ce40a291001bd4bfaea5  linux-amazon-austin-Fire_7_7th_Gen-5.3.7.3-20210714.tar.gz
+ce3842273ab183f8135d3128a4a53a3ea6677f6379c6243e5e33a266c6c05916b13e754d931166481bffe6841136f99aefaeebf931878fb38eb70e0fa3d402f5  config-amazon-austin.armv7
+0ae455bd3d91ef03644f742916340951617e438e09e6552438daf71e3d5eaf498b022c01535160de92ef2fa3b4100f5a2bdb475179ac9705352a0a337b26e8b8  gcc4-compile-fixes.patch
+bfd9134f02059fdc948890a0f923f9c681e209b9ada6025eaa61e04348f69c9e155a094c929e5d6842c09d5782cbb98de3d004fee0ce40767ff954f4499e60fa  fix-host-card-inserted.patch
+50760092b5125466b2280aead0baa12644f064cedc4821fbab6068c97900799922b3d67e6b75968639a1d5bc2cd6af94e90645c594f42c6ac28473c1ea20d9f4  silence-hotplug-logspam.patch
+fc3529031cda24670d668fc8ad0e1cbd745db6a65b28df506169e49b6918de0fa81b6921a1f51271eb826a58d4e2c6c3292d46908913b3c8e70f790f3a82da76  silence-power-logspam.patch
+ef9358ccf23b1a397d07ae0e26fa155aa421870e20c998452855ccec4b1cda1e22b5e95cdcbcd754d0217f1fcfe7bb505f5dda1853dee15548ff948c1b7338c9  silence-battery-logspam.patch
+fde906379c3ab5e7b1e9f6036c77877a07342e0b9f508d6dd2e084862b8fc95122180fac82f9dbd85f4e2a401ce4d440aae0f3b6743deff332926f0bd2898554  silence-mtkfb-logspam.patch
+35889da4c5bef7defd7dcab9497bcc98b0e5998de61a1f98e2d4ac5bd8aec47266fb6979e1cddcc9a94b20b43a6cc893dd14dfbc48d7212c2fc8425f16c376be  silence-usb-logspam.patch
+b3b037b2145c079c95c06781604fa2a874a2c547137f96704d861f5f591069afb6e02869b7fedaca73aff5e7fb6b2449b2a6434aedc80ff36670acd2bc51155d  silence-time-logspam.patch
+9eb4e60f988a289385a4ee0eb94573dd0cbd249c8236eb695b6637322a1a3826dc90728c5f939d51c3320ec3fb2b1eea252c28e34cdfd307db8807dc9f9080a3  silence-i2c-logspam.patch
+56f77c21867325e461d9d8db2400d3a521d682ee10f7d58bef1cc4d50e3648db68be7e40ff9ba67d75ef9832e8914867540381fb38e2108ac5906964536980f8  silence-cmb-logspam.patch
+bac2c215a7a5329e7e0cc6cddc901d7144050a66e1204b4de2bec732a33b2c18bb45732e7b41f62ef5dfc0a6db3518d3870c17e59c13edaf64a5b64b9cbda821  silence-tz-logspam.patch
+d67f2b902c8ce1797ccdce053c95a97adbdc20c49a88d8f257ab4bdd7a643242fffcbba31aad5d3cb91580c3c3351a4fe159041304fe531e857ebfb84aedc962  silence-thermal-logspam.patch
+8447d2509916babb105a91d1f5f04bef12498135de71141f2229ce83cd93c6875b8f6f8ae03ff11d34d7eca6d05464159aa661650fee605c9789125bb755a531  silence-uart-logspam.patch
+3868047c589f0c3efc2b94aece0c46a55d0798650ad1bf8bc4f2328c4a5daaf071d699048edf6a6e0735407d84eb48688c7ade18b439cff1f09ac33087e7170a  silence-vsync-logspam.patch
+"

device/testing/linux-amazon-austin/fix-host-card-inserted.patch

@@ -0,0 +1,31 @@
+diff --git a/drivers/misc/mediatek/mmc-host/mt8127/sd.c b/drivers/misc/mediatek/mmc-host/mt8127/sd.c
+index b78d8f83..d6f0130d 100644
+--- a/drivers/misc/mediatek/mmc-host/mt8127/sd.c
++++ b/drivers/misc/mediatek/mmc-host/mt8127/sd.c
+@@ -216,7 +216,7 @@ MSDC_DEV_ATTR(cmdtimeout_count, "%d", host->cmdtimeout_count, u32);
+ MSDC_DEV_ATTR(reqtimeout_count, "%d", host->reqtimeout_count, u32);
+ MSDC_DEV_ATTR(pc_count, "%d", host->pc_count, u32);
+ MSDC_DEV_ATTR(pc_suspend, "%d", host->pc_suspend, u32);
+-MSDC_DEV_ATTR(inserted, "%d", host->inserted, u32);
++MSDC_DEV_ATTR(inserted, "%d", host->card_inserted, u32);
+ 
+ static struct device_attribute *msdc_attrs[] = {
+ 	&dev_attr_crc_count,
+@@ -271,7 +271,7 @@ static void msdc_metrics_work(struct work_struct *work)
+ 	MSDC_LOG_COUNTER_TO_VITALS(reqto, host->reqtimeout_count);
+ 	MSDC_LOG_COUNTER_TO_VITALS(pc_count, host->pc_count);
+ 	MSDC_LOG_COUNTER_TO_VITALS(pc_suspend, host->pc_suspend);
+-	MSDC_LOG_COUNTER_TO_VITALS(inserted, host->inserted);
++	MSDC_LOG_COUNTER_TO_VITALS(inserted, host->card_inserted);
+ }
+ #endif
+ 
+@@ -1908,7 +1908,7 @@ static void msdc_tasklet_card(unsigned long arg)
+     }
+ 
+ 	if ((host->hw->host_function == MSDC_SD) && inserted) {
+-		host->inserted++;
++		host->card_inserted++;
+ #ifdef CONFIG_AMAZON_METRICS_LOG
+ 		mod_delayed_work(system_wq, &host->metrics_work, METRICS_DELAY);
+ #endif

device/testing/linux-amazon-austin/gcc4-compile-fixes.patch

@@ -0,0 +1,26 @@
+diff --git a/arch/arm/mach-mt8127/ford/touchpanel/tpd_debug.c b/arch/arm/mach-mt8127/ford/touchpanel/tpd_debug.c
+index aa1515d9..3df17b83 100644
+--- a/arch/arm/mach-mt8127/ford/touchpanel/tpd_debug.c
++++ b/arch/arm/mach-mt8127/ford/touchpanel/tpd_debug.c
+@@ -4,7 +4,7 @@
+ #include <linux/miscdevice.h>
+ #include <linux/i2c.h>
+ #include <linux/delay.h>
+-#include <tpd.h>
++#include "tpd.h"
+ 
+ #ifdef TPD_DEBUG_CODE
+ int tpd_fail_count = 0;
+diff --git a/drivers/thermal/virtual_sensor_cpufreq_cooling.c b/drivers/thermal/virtual_sensor_cpufreq_cooling.c
+index 99c4cae1..705993b1 100644
+--- a/drivers/thermal/virtual_sensor_cpufreq_cooling.c
++++ b/drivers/thermal/virtual_sensor_cpufreq_cooling.c
+@@ -29,7 +29,7 @@
+ #include <linux/thermal.h>
+ #include <linux/cpumask.h>
+ #include <linux/cpu_cooling.h>
+-#include <thermal_core.h>
++#include "thermal_core.h"
+ 
+ #define MAX_STATE	4 /* 0-4 total 5 */
+ 

device/testing/linux-amazon-austin/silence-battery-logspam.patch

@@ -0,0 +1,56 @@
+diff --git a/include/mach/charging.h b/include/mach/charging.h
+index a6c2a4cb..49379bba 100644
+--- a/include/mach/charging.h
++++ b/include/mach/charging.h
+@@ -43,12 +43,13 @@
+ #define BAT_LOG_CRTI 1
+ #define BAT_LOG_FULL 2
+ 
+-#define battery_xlog_printk(num, fmt, args...) \
+-  do { \
+-    if (Enable_BATDRV_LOG >= (int)num) { \
+-      pr_notice(fmt, ##args); \
+-    } \
+-  } while (0)
++//#define battery_xlog_printk(num, fmt, args...) \
++//  do { \
++//    if (Enable_BATDRV_LOG >= (int)num) { \
++//      pr_notice(fmt, ##args); \
++//    } \
++//  } while (0)
++#define battery_xlog_printk(num, fmt, args...) do {} while (0)
+ 
+ 
+ /* ============================================================ */
+diff --git a/drivers/power/mediatek/battery_common.c b/drivers/power/mediatek/battery_common.c
+index 92228b5d..6c3d42cd 100755
+--- a/drivers/power/mediatek/battery_common.c
++++ b/drivers/power/mediatek/battery_common.c
+@@ -2789,10 +2789,10 @@ void mt_battery_GetBatteryData(void)
+ 	if (g_battery_soc_ready == KAL_FALSE)
+ 		g_battery_soc_ready = KAL_TRUE;
+ 
+-	pr_notice("AvgVbat=(%d),bat_vol=(%d),AvgI=(%d),I=(%d),VChr=(%d),AvgT=(%d),T=(%d),pre_SOC=(%d),SOC=(%d),ZCV=(%d)\n",
+-			BMT_status.bat_vol, bat_vol, BMT_status.ICharging, ICharging,
+-			BMT_status.charger_vol, BMT_status.temperature, temperature,
+-			previous_SOC, BMT_status.SOC, BMT_status.ZCV);
++//	pr_notice("AvgVbat=(%d),bat_vol=(%d),AvgI=(%d),I=(%d),VChr=(%d),AvgT=(%d),T=(%d),pre_SOC=(%d),SOC=(%d),ZCV=(%d)\n",
++//			BMT_status.bat_vol, bat_vol, BMT_status.ICharging, ICharging,
++//			BMT_status.charger_vol, BMT_status.temperature, temperature,
++//			previous_SOC, BMT_status.SOC, BMT_status.ZCV);
+ 
+ 
+ }
+diff --git a/drivers/power/mediatek/linear_charging.c b/drivers/power/mediatek/linear_charging.c
+index c3bf6a0c..2dd6e5ba 100644
+--- a/drivers/power/mediatek/linear_charging.c
++++ b/drivers/power/mediatek/linear_charging.c
+@@ -310,7 +310,7 @@ static void mtk_ta_vchr_select(int i,int ta_v_chr_candidate[], int ta_charging_c
+ 
+ 	current_vchr = battery_meter_get_charger_voltage();
+ 	if(ta_current_level != 5000 && current_vchr >= 4900) {	/* pattern error before, so reset vchr to 5V */
+-		battery_xlog_printk(BAT_LOG_CRTI, "mtk_ta_vchr_select() : curr_VChr=%d, ta_current_level=%d\n",current_vchr,ta_current_level);
++//		battery_xlog_printk(BAT_LOG_CRTI, "mtk_ta_vchr_select() : curr_VChr=%d, ta_current_level=%d\n",current_vchr,ta_current_level);
+ 
+ 		mtk_ta_reset_vchr();
+ 	}

device/testing/linux-amazon-austin/silence-cmb-logspam.patch

@@ -0,0 +1,36 @@
+diff --git a/drivers/misc/mediatek/connectivity/combo/common/platform/alps/mtk_wcn_cmb_stub_alps.c b/drivers/misc/mediatek/connectivity/combo/common/platform/alps/mtk_wcn_cmb_stub_alps.c
+index 1bba50c6..85fea736 100644
+--- a/drivers/misc/mediatek/connectivity/combo/common/platform/alps/mtk_wcn_cmb_stub_alps.c
++++ b/drivers/misc/mediatek/connectivity/combo/common/platform/alps/mtk_wcn_cmb_stub_alps.c
+@@ -15,9 +15,9 @@
+ *                                 M A C R O S
+ ********************************************************************************
+ */
+-#define CMB_STUB_LOG_INFO(fmt, arg...) pr_warn(fmt, ##arg)
+-#define CMB_STUB_LOG_WARN(fmt, arg...) pr_err(fmt, ##arg)
+-#define CMB_STUB_LOG_DBG(fmt, arg...) pr_warn(fmt, ##arg)
++#define CMB_STUB_LOG_INFO(fmt, arg...) pr_info(fmt, ##arg)
++#define CMB_STUB_LOG_WARN(fmt, arg...) pr_warn(fmt, ##arg)
++#define CMB_STUB_LOG_DBG(fmt, arg...) pr_debug(fmt, ##arg)
+ 
+ 
+ /*******************************************************************************
+diff --git a/drivers/misc/mediatek/connectivity/common_detect/mtk_wcn_stub_alps.c b/drivers/misc/mediatek/connectivity/common_detect/mtk_wcn_stub_alps.c
+index c2d20e1a..dcf43e74 100644
+--- a/drivers/misc/mediatek/connectivity/common_detect/mtk_wcn_stub_alps.c
++++ b/drivers/misc/mediatek/connectivity/common_detect/mtk_wcn_stub_alps.c
+@@ -305,10 +305,10 @@ signed long mtk_wcn_cmb_stub_query_ctrl()
+ 	{
+ 		temp = (*cmb_stub_thermal_ctrl_cb)();
+ 	}
+-	else
+-	{
+-		CMB_STUB_LOG_DBG("[cmb_stub] thermal_ctrl_cb null\n");
+-	}
++//	else
++//	{
++//		CMB_STUB_LOG_DBG("[cmb_stub] thermal_ctrl_cb null\n");
++//	}
+ 
+ 	return temp;
+ }

device/testing/linux-amazon-austin/silence-hotplug-logspam.patch

@@ -0,0 +1,177 @@
+diff --git a/arch/arm/mach-mt8127/include/mach/hotplug.h b/arch/arm/mach-mt8127/include/mach/hotplug.h
+index fa139f2a..413b7dbc 100644
+--- a/arch/arm/mach-mt8127/include/mach/hotplug.h
++++ b/arch/arm/mach-mt8127/include/mach/hotplug.h
+@@ -11,7 +11,8 @@
+ #define HOTPLUG_LOG_WITH_XLOG                           1
+ #define HOTPLUG_LOG_WITH_PRINTK                         2
+ 
+-#define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_WITH_PRINTK
++// #define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_WITH_PRINTK
++#define HOTPLUG_LOG_PRINT                               HOTPLUG_LOG_NONE
+ 
+ #if (HOTPLUG_LOG_PRINT == HOTPLUG_LOG_NONE)
+ #define HOTPLUG_INFO(fmt, args...)                    
+diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
+index 5c5842d6..62de84f3 100644
+--- a/arch/arm/kernel/smp.c
++++ b/arch/arm/kernel/smp.c
+@@ -220,7 +220,7 @@ void __cpuinit __cpu_die(unsigned int cpu)
+ 		pr_err("CPU%u: cpu didn't die\n", cpu);
+ 		return;
+ 	}
+-	printk(KERN_NOTICE "CPU%u: shutdown\n", cpu);
++//	printk(KERN_NOTICE "CPU%u: shutdown\n", cpu);
+ 
+ 	/*
+ 	 * platform_cpu_kill() is generally expected to do the powering off
+@@ -356,7 +356,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
+ 	cpu_init();
+ 	aee_rr_rec_hoplug(cpu, 5, 0);
+ 
+-	printk("CPU%u: Booted secondary processor\n", cpu);
++//	printk("CPU%u: Booted secondary processor\n", cpu);
+ 
+ 	preempt_disable();
+ 	aee_rr_rec_hoplug(cpu, 6, 0);
+diff --git a/arch/arm/mach-mt8127/ca7_timer.c b/arch/arm/mach-mt8127/ca7_timer.c
+index c752bb1d..0ca334e4 100644
+--- a/arch/arm/mach-mt8127/ca7_timer.c
++++ b/arch/arm/mach-mt8127/ca7_timer.c
+@@ -289,7 +289,7 @@ static int __cpuinit generic_timer_setup(struct clock_event_device *clk)
+ {
+     struct clock_event_device **this_cpu_clk;
+ 
+-    pr_info("[ca7_timer]%s entry\n", __func__);
++//    pr_info("[ca7_timer]%s entry\n", __func__);
+     generic_timer_calibrate_rate();
+ 
+     write_cntp_ctl(0x0);
+diff --git a/arch/arm/mach-mt8127/mt-smp.c b/arch/arm/mach-mt8127/mt-smp.c
+index 4df773d2..1fbd14c9 100644
+--- a/arch/arm/mach-mt8127/mt-smp.c
++++ b/arch/arm/mach-mt8127/mt-smp.c
+@@ -127,7 +127,7 @@ void __cpuinit mt_platform_secondary_init(unsigned int cpu)
+ {
+     struct wd_api *wd_api = NULL;
+ 
+-    printk(KERN_INFO "Slave cpu init\n");
++//    printk(KERN_INFO "Slave cpu init\n");
+     HOTPLUG_INFO("platform_secondary_init, cpu: %d\n", cpu);
+ 
+     mt_gic_secondary_init();
+@@ -170,7 +170,7 @@ static void __cpuinit mt_wakeup_cpu(int cpu)
+     }
+     else
+     {
+-    	printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
++//    	printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
+         mt65xx_reg_sync_writel(virt_to_phys(mt_secondary_startup), BOOT_ADDR);        
+ 
+ #if defined(CONFIG_TRUSTONIC_TEE_SUPPORT) || defined(CONFIG_MTK_IN_HOUSE_TEE_SUPPORT)
+@@ -189,7 +189,7 @@ int __cpuinit mt_boot_secondary(unsigned int cpu, struct task_struct *idle)
+ {
+     unsigned long timeout;
+ 
+-    printk(KERN_CRIT "Boot slave CPU\n");
++//    printk(KERN_INFO "Boot slave CPU\n");
+ 
+     atomic_inc(&hotplug_cpu_count);
+ 
+@@ -224,7 +224,7 @@ int __cpuinit mt_boot_secondary(unsigned int cpu, struct task_struct *idle)
+ #if !defined (CONFIG_TRUSTONIC_TEE_SUPPORT)
+             mt_wakeup_cpu(cpu);
+ #else //#if !defined (CONFIG_TRUSTONIC_TEE_SUPPORT)
+-            printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
++//            printk("mt_wakeup_cpu: not first boot!(%d)\n", cpu);
+ 			//mt65xx_reg_sync_writel(virt_to_phys(mt_secondary_startup), BOOT_ADDR);
+ 			// fixme, to replace SMC with parameter of ns_slave_boot_addr
+             mt_secure_call(MC_FC_SET_RESET_VECTOR, virt_to_phys(mt_secondary_startup), cpu, 0);
+diff --git a/arch/arm/mach-mt8127/mt_dbg.c b/arch/arm/mach-mt8127/mt_dbg.c
+index 3391891a..14ad42e1 100644
+--- a/arch/arm/mach-mt8127/mt_dbg.c
++++ b/arch/arm/mach-mt8127/mt_dbg.c
+@@ -71,7 +71,7 @@ regs_hotplug_callback(struct notifier_block *nfb, unsigned long action, void *hc
+ //        printk(KERN_ALERT "In hotplug callback\n");
+ 	int i;
+         unsigned int cpu = (unsigned int) hcpu;
+-        printk("regs_hotplug_callback cpu = %d\n", cpu);
++//        printk("regs_hotplug_callback cpu = %d\n", cpu);
+         switch (action) {
+         case CPU_ONLINE:
+ 	case CPU_ONLINE_FROZEN:
+diff --git a/drivers/misc/mediatek/wdk/wd_api.c b/drivers/misc/mediatek/wdk/wd_api.c
+index c382f7a7..b94fcf7a 100644
+--- a/drivers/misc/mediatek/wdk/wd_api.c
++++ b/drivers/misc/mediatek/wdk/wd_api.c
+@@ -88,7 +88,7 @@ static int wd_cpu_hot_plug_on_notify(int cpu)
+ 	int res = 0;
+ 	wk_cpu_update_bit_flag(cpu, 1);
+ 	mtk_wdt_restart(WD_TYPE_NOLOCK);	/* for KICK external wdt */
+-	printk("WD wd_cpu_hot_plug_on_notify kick ext wd\n");
++//	printk("WD wd_cpu_hot_plug_on_notify kick ext wd\n");
+ 
+ 	return res;
+ }
+diff --git a/drivers/misc/mediatek/wdk/wd_common_drv.c b/drivers/misc/mediatek/wdk/wd_common_drv.c
+index aecc3081..36ba4773 100644
+--- a/drivers/misc/mediatek/wdk/wd_common_drv.c
++++ b/drivers/misc/mediatek/wdk/wd_common_drv.c
+@@ -230,7 +230,7 @@ void kicker_cpu_bind(int cpu)
+ 		//kthread_bind(wk_tsk[cpu], cpu);
+ 		WARN_ON_ONCE(set_cpus_allowed_ptr(wk_tsk[cpu], cpumask_of(cpu)) < 0);
+ 		
+-		printk("[wdk]bind kicker thread[%d] to cpu[%d]\n",wk_tsk[cpu]->pid,cpu);
++//		printk("[wdk]bind kicker thread[%d] to cpu[%d]\n",wk_tsk[cpu]->pid,cpu);
+ 		wake_up_process(wk_tsk[cpu]);
+ 	}
+ }
+@@ -570,7 +570,7 @@ static int __cpuinit wk_cpu_callback(struct notifier_block *nfb, unsigned long a
+ 		mpcore_wdt_restart(WD_TYPE_NORMAL);
+ #endif
+ 
+-		printk("[WDK]cpu %d plug on kick wdt\n", hotcpu);
++//		printk("[WDK]cpu %d plug on kick wdt\n", hotcpu);
+ 		break;
+ #ifdef CONFIG_HOTPLUG_CPU
+ #ifdef CONFIG_LOCAL_WDT
+@@ -584,14 +584,14 @@ static int __cpuinit wk_cpu_callback(struct notifier_block *nfb, unsigned long a
+ 
+ 		mtk_wdt_restart(WD_TYPE_NORMAL);	/* for KICK external wdt */
+ #ifdef CONFIG_LOCAL_WDT
+-		printk("[WDK]cpu %d plug off kick local wdt\n", hotcpu);
++//		printk("[WDK]cpu %d plug off kick local wdt\n", hotcpu);
+ 		/* kick local wdt */
+ 		/* mpcore_wdt_restart(WD_TYPE_NORMAL); */
+ 		/* disable local watchdog */
+ 		mpcore_wk_wdt_stop();
+ #endif
+ 		wk_cpu_update_bit_flag(hotcpu, 0);
+-		printk("[WDK]cpu %d plug off, kick wdt\n", hotcpu);
++//		printk("[WDK]cpu %d plug off, kick wdt\n", hotcpu);
+ 		break;
+ #endif				/* CONFIG_HOTPLUG_CPU */
+ 	}
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index fb958294..43e3e69d 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -4197,12 +4197,12 @@ recheck:
+ 			return -EINVAL;
+ 	}
+ 
+-	if(rt_policy(policy)){                                                                                
+-		if (!check_mt_allow_rt((struct sched_param *)param)){
+-			printk("[RT_MONITOR]WARNNING [%d:%s] SET NOT ALLOW RT Prio [%d] for proc [%d:%s]\n", current->pid, current->comm, param->sched_priority, p->pid, p->comm);
+-			//dump_stack();
+-		}
+-	}
++//	if(rt_policy(policy)){                                                                                
++//		if (!check_mt_allow_rt((struct sched_param *)param)){
++//			printk("[RT_MONITOR]WARNNING [%d:%s] SET NOT ALLOW RT Prio [%d] for proc [%d:%s]\n", current->pid, current->comm, param->sched_priority, p->pid, p->comm);
++//			//dump_stack();
++//		}
++//	}
+ 
+ 	/*
+ 	 * Valid priorities for SCHED_FIFO and SCHED_RR are

device/testing/linux-amazon-austin/silence-i2c-logspam.patch

@@ -0,0 +1,26 @@
+diff --git a/drivers/misc/mediatek/i2c/mt8127/i2c.c b/drivers/misc/mediatek/i2c/mt8127/i2c.c
+index 328e6867..4934a19e 100644
+--- a/drivers/misc/mediatek/i2c/mt8127/i2c.c
++++ b/drivers/misc/mediatek/i2c/mt8127/i2c.c
+@@ -54,6 +54,7 @@ static mt_i2c  *g_i2c[2];
+ #endif
+ /***********************************i2c debug********************************************************/
+ //#define I2C_DEBUG_FS
++#undef I2C_DEBUG_FS
+ #ifdef I2C_DEBUG_FS
+   #define PORT_COUNT 7
+   #define MESSAGE_COUNT 16
+@@ -367,10 +368,12 @@ static S32 _i2c_deal_result(mt_i2c *i2c)
+       I2CERR("I2C_HS_NACKERR\n");
+     if (i2c->irq_stat & I2C_ACKERR)
+       I2CERR("I2C_ACKERR\n");
++    #ifdef I2C_DEBUG_FS
+     if (i2c->filter_msg==FALSE) //TEST
+     {
+       _i2c_dump_info(i2c);
+-   }
++    }
++    #endif
+ 
+     spin_lock(&i2c->lock);
+     /*Reset i2c port*/

device/testing/linux-amazon-austin/silence-mtkfb-logspam.patch

@@ -0,0 +1,13 @@
+diff --git a/drivers/misc/mediatek/video/mt8127/mtkfb.c b/drivers/misc/mediatek/video/mt8127/mtkfb.c
+index 50bfbcd0..238f09d2 100644
+--- a/drivers/misc/mediatek/video/mt8127/mtkfb.c
++++ b/drivers/misc/mediatek/video/mt8127/mtkfb.c
+@@ -63,6 +63,8 @@
+ 
+ //#undef pr_info
+ //#define pr_info printk
++#undef pr_info
++#define pr_info(fmt, args...) do {} while (0)
+ 
+ unsigned int EnableVSyncLog = 0;
+ 

device/testing/linux-amazon-austin/silence-thermal-logspam.patch

@@ -0,0 +1,27 @@
+diff --git a/drivers/thermal/virtual_sensor_thermal.c b/drivers/thermal/virtual_sensor_thermal.c
+index d3f7265a..1fb47593 100644
+--- a/drivers/thermal/virtual_sensor_thermal.c
++++ b/drivers/thermal/virtual_sensor_thermal.c
+@@ -186,14 +186,14 @@ static int virtual_sensor_thermal_get_temp(struct thermal_zone_device *thermal,
+                         log_to_metrics(ANDROID_LOG_INFO, "ThermalEvent", buf);
+                 }
+ 	#endif
+-		if (0 == sec_counter)
+-			pr_warning("%s %s t=%ld a=%d o=%d w=%d\n",
+-			       __func__,
+-			       tdev->name,
+-			       temp,
+-			       alpha,
+-			       offset,
+-			       weight);
++//		if (0 == sec_counter)
++//			pr_warning("%s %s t=%ld a=%d o=%d w=%d\n",
++//			       __func__,
++//			       tdev->name,
++//			       temp,
++//			       alpha,
++//			       offset,
++//			       weight);
+ 
+ 		if (!tdev->off_temp)
+ 			tdev->off_temp = temp - offset;

device/testing/linux-amazon-austin/silence-time-logspam.patch

@@ -0,0 +1,20 @@
+diff --git a/include/linux/time_log.h b/include/linux/time_log.h
+index 1770e9bc..471f4889 100644
+--- a/include/linux/time_log.h
++++ b/include/linux/time_log.h
+@@ -2,7 +2,7 @@
+ #include <linux/types.h>
+ 
+ extern bool printk_disable_uart;
+-#if 1
++#if 0
+ #define TIME_LOG_START() \
+     { \
+     	 unsigned long long _start_time = 0; \
+@@ -28,4 +28,4 @@ extern bool printk_disable_uart;
+ #else
+ #define TIME_LOG_START()  do{} while(0)
+ #define TIME_LOG_END(X...) do{} while(0)
+-#endif
+\ No newline at end of file
++#endif

device/testing/linux-amazon-austin/silence-tz-logspam.patch

@@ -0,0 +1,22 @@
+diff --git a/drivers/misc/mediatek/trustzone/tz_secure_clock.c b/drivers/misc/mediatek/trustzone/tz_secure_clock.c
+index 19311916..4094b26d 100644
+--- a/drivers/misc/mediatek/trustzone/tz_secure_clock.c
++++ b/drivers/misc/mediatek/trustzone/tz_secure_clock.c
+@@ -184,7 +184,7 @@ if (err) {
+ }
+ 
+ rtc_tm_to_time(&tm, &time_count);
+-#if 1
++#if 0
+ pr_notice("securetime increase result: %d %d %d %d %d %d %d\n", tm.tm_yday, tm.tm_year, tm.tm_mon
+ 	, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+ #endif	
+@@ -194,7 +194,7 @@ ret = KREE_TeeServiceCall(session, TZCMD_SECURETIME_INC_CURRENT_COUNTER, paramTy
+ if (ret != TZ_RESULT_SUCCESS)
+ 	pr_err("ServiceCall error %d\n", ret);
+ 
+-#if 1
++#if 0
+ pr_notice("securetime increase result: %d %d %d %d %d %d %d\n", ((struct TM_GB *) shm_p)->tm_yday
+ 	, ((struct TM_GB *) shm_p)->tm_year, ((struct TM_GB *) shm_p)->tm_mon, ((struct TM_GB *) shm_p)->tm_mday
+ 	, ((struct TM_GB *) shm_p)->tm_hour, ((struct TM_GB *) shm_p)->tm_min, ((struct TM_GB *) shm_p)->tm_sec);

device/testing/linux-amazon-austin/silence-uart-logspam.patch

@@ -0,0 +1,26 @@
+diff --git a/drivers/misc/mediatek/uart/mt8127/platform_uart.c b/drivers/misc/mediatek/uart/mt8127/platform_uart.c
+index 35f126d8..ba601f67 100644
+--- a/drivers/misc/mediatek/uart/mt8127/platform_uart.c
++++ b/drivers/misc/mediatek/uart/mt8127/platform_uart.c
+@@ -1749,7 +1749,7 @@ void mtk_uart_enable_sleep(struct mtk_uart *uart)
+ {
+     u32 base = uart->base;
+     reg_sync_writel(0x1, UART_SLEEP_EN);
+-    printk("SLEEP_EN = 0x%x\n",UART_READ32(UART_SLEEP_EN));
++//    printk("SLEEP_EN = 0x%x\n",UART_READ32(UART_SLEEP_EN));
+ }
+ /*---------------------------------------------------------------------------*/
+ void mtk_uart_init_debug_spinlock(void)
+diff --git a/drivers/misc/mediatek/uart/uart.c b/drivers/misc/mediatek/uart/uart.c
+index 8bcec9e1..b49df4d2 100644
+--- a/drivers/misc/mediatek/uart/uart.c
++++ b/drivers/misc/mediatek/uart/uart.c
+@@ -1837,7 +1837,7 @@ static void mtk_uart_set_termios(struct uart_port *port,
+         printk(KERN_NOTICE "MTK Software Flow Control\n");
+         mode = UART_FC_SW;
+     } else if (termios->c_iflag & (IXON | IXOFF | IXANY)) {
+-        printk(KERN_NOTICE "Linux default SW Flow Control\n");
++//        printk(KERN_NOTICE "Linux default SW Flow Control\n");
+         mode = UART_FC_NONE;    
+     } else {
+         printk(KERN_NOTICE "No Flow Control\n");

device/testing/linux-amazon-austin/silence-usb-logspam.patch

@@ -0,0 +1,87 @@
+diff --git a/drivers/misc/mediatek/usb20/mt8127/usb20.c b/drivers/misc/mediatek/usb20/mt8127/usb20.c
+index 79ecf1df..71008702 100644
+--- a/drivers/misc/mediatek/usb20/mt8127/usb20.c
++++ b/drivers/misc/mediatek/usb20/mt8127/usb20.c
+@@ -40,6 +40,8 @@
+ #include <linux/metricslog.h>
+ #endif
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ extern struct musb *mtk_musb;
+ static DEFINE_SEMAPHORE(power_clock_lock);
+ //static bool platform_init_first = true;   //Mark by ALPS01262215
+@@ -283,7 +285,7 @@ void mt_usb_connect(void)
+ 
+ void mt_usb_disconnect(void)
+ {
+-	printk("[MUSB] USB is ready for disconnect\n");
++//	printk("[MUSB] USB is ready for disconnect\n");
+ 
+ 	if (!mtk_musb || !mtk_musb->is_ready || mtk_musb->is_host || !mtk_musb->power)
+ 		return;
+diff --git a/drivers/misc/mediatek/usb20/mt8127/usb20_host.c b/drivers/misc/mediatek/usb20/mt8127/usb20_host.c
+index 668b410a..a2e90005 100644
+--- a/drivers/misc/mediatek/usb20/mt8127/usb20_host.c
++++ b/drivers/misc/mediatek/usb20/mt8127/usb20_host.c
+@@ -38,6 +38,8 @@
+ #include <linux/metricslog.h>
+ #endif
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ extern struct musb *mtk_musb;
+ 
+ static struct musb_fifo_cfg fifo_cfg_host[] = {
+diff --git a/drivers/misc/mediatek/usb20/mt8127/usb20_otg_if.c b/drivers/misc/mediatek/usb20/mt8127/usb20_otg_if.c
+index e8d4c269..8d154d93 100644
+--- a/drivers/misc/mediatek/usb20/mt8127/usb20_otg_if.c
++++ b/drivers/misc/mediatek/usb20/mt8127/usb20_otg_if.c
+@@ -50,6 +50,8 @@
+ 
+ #include <linux/musb/musb_core.h>
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ #define DRIVER_AUTHOR "Mediatek"
+ #define DRIVER_DESC "driver for OTG USB-IF test"
+ #define MUSB_OTG_CSR0 0x102
+diff --git a/drivers/misc/mediatek/usb20/musb_core.c b/drivers/misc/mediatek/usb20/musb_core.c
+index 13b65ffe..a9a95dbd 100644
+--- a/drivers/misc/mediatek/usb20/musb_core.c
++++ b/drivers/misc/mediatek/usb20/musb_core.c
+@@ -111,6 +111,8 @@
+ #include <linux/musb/mtk_musb.h>
+ #endif
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ int musb_host_dynamic_fifo = 1;
+ int musb_host_dynamic_fifo_usage_msk;
+ module_param(musb_host_dynamic_fifo, int, 0644);
+diff --git a/drivers/misc/mediatek/usb20/musb_gadget.c b/drivers/misc/mediatek/usb20/musb_gadget.c
+index c4d0c594..62ccf3fe 100644
+--- a/drivers/misc/mediatek/usb20/musb_gadget.c
++++ b/drivers/misc/mediatek/usb20/musb_gadget.c
+@@ -50,6 +50,8 @@
+ 
+ #include <linux/musb/musb_core.h>
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ #define FIFO_START_ADDR 512
+ 
+ //#define RX_DMA_MODE1 1
+diff --git a/drivers/misc/mediatek/usb20/musb_host.c b/drivers/misc/mediatek/usb20/musb_host.c
+index 7c97b9a0..d121bb95 100644
+--- a/drivers/misc/mediatek/usb20/musb_host.c
++++ b/drivers/misc/mediatek/usb20/musb_host.c
+@@ -48,6 +48,8 @@
+ #include <linux/musb/musb_core.h>
+ #include <linux/musb/musb_host.h>
+ 
++#define DBG(fmt, args...) do {} while (0)
++
+ 
+ /* MUSB HOST status 22-mar-2006
+  *

device/testing/linux-amazon-austin/silence-vsync-logspam.patch

@@ -0,0 +1,13 @@
+diff --git a/drivers/misc/mediatek/video/mt8127/mt8127/dpi_drv.c b/drivers/misc/mediatek/video/mt8127/mt8127/dpi_drv.c
+index 2a663ddf..e77e6477 100644
+--- a/drivers/misc/mediatek/video/mt8127/mt8127/dpi_drv.c
++++ b/drivers/misc/mediatek/video/mt8127/mt8127/dpi_drv.c
+@@ -218,7 +218,7 @@ static irqreturn_t _DPI_InterruptHandler(int irq, void *dev_id)
+ 	dpi_vsync_irq_count++;
+ 	if(dpi_vsync_irq_count > 120)
+ 	{
+-		printk("dpi vsync\n");
++//		printk("dpi vsync\n");
+ 		dpi_vsync_irq_count = 0;
+ 	}
+         if(dpiIntCallback)