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Keerthy ffcb2fc86e thermal: k3_j72xx_bandgap: Add the bandgap driver support 
Add VTM thermal support. In the Voltage Thermal Management
Module(VTM), K3 J72XX supplies a voltage reference and a temperature
sensor feature that are gathered in the band gap voltage and
temperature sensor (VBGAPTS) module. The band gap provides current and
voltage reference for its internal circuits and other analog IP
blocks. The analog-to-digital converter (ADC) produces an output value
that is proportional to the silicon temperature.

Currently reading temperatures only is supported.  There are no
active/passive cooling agent supported.

J721e SoCs have errata i2128: https://www.ti.com/lit/pdf/sprz455

The VTM Temperature Monitors (TEMPSENSORs) are trimmed during production,
with the resulting values stored in software-readable registers. Software
should use these  register values when translating the Temperature
Monitor output codes to temperature values.

It has an involved workaround. Software needs to read the error codes for
-40C, 30C, 125C from the efuse for each device & derive a new look up table
for adc to temperature conversion. Involved calculating slopes & constants
using 3 different straight line equations with adc refernce codes as the
y-axis & error codes in the x-axis.

-40C to 30C
30C to 125C
125C to 150C

With the above 2 line equations we derive the full look-up table to
workaround the errata i2128 for j721e SoC.

Tested temperature reading on J721e SoC & J7200 SoC.

[daniel.lezcano@linaro.org: Generate look-up tables run-time]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Link: https://lore.kernel.org/r/20220517172920.10857-3-j-keerthy@ti.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 		2022-05-19 12:11:53 +02:00
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accessibility
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acpi Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40" 2022-04-21 19:58:14 +02:00
amba
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android binder: Gracefully handle BINDER_TYPE_FDA objects with num_fds=0 2022-04-22 17:22:51 +02:00
ata ata: pata_marvell: Check the 'bmdma_addr' beforing reading 2022-04-22 08:45:06 +09:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-17 13:56:58 -07:00
auxdisplay auxdisplay: lcd2s: Use array size explicitly in lcd2s_gotoxy() 2022-03-18 20:31:14 +01:00
base Driver core fixes for 5.18-rc5 2022-04-30 10:24:21 -07:00
bcma Core MTD changes: 2022-03-25 13:35:34 -07:00
block ataflop: use a statically allocated error counters 2022-05-08 10:01:48 -07:00
bluetooth Bluetooth: ath3k: remove superfluous header files 2022-03-18 17:12:09 +01:00
bus - Fix locking when accessing device MSI descriptors 2022-05-01 09:30:47 -07:00
cdrom cdrom: remove unused variable 2022-04-06 08:47:52 -06:00
char Fix some issues that were reported 2022-05-04 11:01:31 -07:00
clk Add missing sentinel, check return value and mark rtc-32k as critical 2022-04-25 16:47:24 -07:00
clocksource asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
comedi
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connector
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counter Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
cpufreq cpufreq: qcom-cpufreq-hw: Clear dcvs interrupts 2022-04-26 12:08:31 +05:30
cpuidle cpuidle: riscv: support non-SMP config 2022-04-19 17:42:08 -07:00
crypto virtio: features, fixes 2022-03-31 13:57:15 -07:00
cxl cxl/pci: Drop shadowed variable 2022-04-08 12:59:43 -07:00
dax dax for 5.18 2022-03-24 18:12:09 -07:00
dca
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devfreq
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dio
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dma dmaengine: idxd: skip clearing device context when device is read-only 2022-04-20 17:24:43 +05:30
dma-buf dma-buf: handle empty dma_fence_arrays gracefully 2022-03-29 09:14:30 +02:00
edac EDAC/synopsys: Read the error count from the correct register 2022-04-14 14:44:49 +02:00
eisa
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extcon
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firewire firewire: core: extend card->lock in fw_core_handle_bus_reset 2022-04-25 08:01:09 +02:00
firmware sound fixes for 5.18-rc4 2022-04-22 13:11:38 -07:00
fpga
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fsi
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gnss
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gpio gpio: pca953x: fix irq_stat not updated when irq is disabled (irq_mask not set) 2022-05-06 16:59:29 +02:00
gpu Merge tag 'drm-msm-fixes-2022-04-30' of https://gitlab.freedesktop.org/drm/msm into drm-fixes 2022-05-06 11:22:03 +10:00
greybus
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hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2022-04-01 10:14:32 -07:00
hsi
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hv hyperv-fixes for 5.18-rc2 2022-04-07 06:35:34 -10:00
hwmon hwmon: (pmbus) delta-ahe50dc-fan: work around hardware quirk 2022-04-27 04:52:18 -07:00
hwspinlock hwspinlock: sprd: Use struct_size() helper in devm_kzalloc() 2022-03-11 14:56:57 -06:00
hwtracing Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
i2c i2c: ismt: Fix undefined behavior due to shift overflowing the constant 2022-04-15 23:49:02 +02:00
i3c i3c: fix uninitialized variable use in i2c setup 2022-03-08 22:33:52 +01:00
idle intel_idle: Fix SPR C6 optimization 2022-04-27 20:36:47 +02:00
iio iio: adc: qcom-vadc-common: add reverse scaling for PMIC5 Gen2 ADC_TM 2022-05-19 12:11:51 +02:00
infiniband RDMA/rxe: Change mcg_lock to a _bh lock 2022-05-04 21:29:25 -03:00
input Input updates for v5.18-rc3 2022-04-23 09:52:07 -07:00
interconnect interconnect: qcom: sdx55: Drop IP0 interconnects 2022-04-14 09:47:16 +03:00
iommu iommu: Make sysfs robust for non-API groups 2022-05-04 15:13:39 +02:00
ipack
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irqchip irqchip/gic, gic-v3: Prevent GSI to SGI translations 2022-04-05 16:33:47 +01:00
isdn mISDN: fix typo "frame to short" -> "frame too short" 2022-03-21 13:26:38 +00:00
leds LED updates for 5.18-rc1. Nothing major here, there are two drivers 2022-03-27 14:09:48 -07:00
macintosh
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mailbox mailbox: ti-msgmgr: Operate mailbox in polled mode during system suspend 2022-03-12 19:33:30 -06:00
mcb
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md block-5.18-2022-04-22 2022-04-23 09:46:44 -07:00
media media: si2157: unknown chip version Si2147-A30 ROM 0x50 2022-04-09 17:45:49 +02:00
memory memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode 2022-04-21 17:00:24 +02:00
memstick
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message scsi: message: fusion: Remove redundant variable dmp 2022-04-06 22:28:07 -04:00
mfd - New Drivers 2022-03-25 13:56:18 -07:00
misc eeprom: at25: Use DMA safe buffers 2022-04-24 17:25:10 +02:00
mmc mmc: sdhci-msm: Reset GCC_SDCC_BCR register for SDHC 2022-05-04 12:31:55 +02:00
most
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mtd mtd: rawnand: qcom: fix memory corruption that causes panic 2022-04-21 09:29:07 +02:00
mux
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net net/mlx5: Fix matching on inner TTC 2022-05-04 00:00:07 -07:00
nfc nfc: nfcmrvl: main: reorder destructive operations in nfcmrvl_nci_unregister_dev to avoid bugs 2022-05-01 13:26:05 +01:00
ntb
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nubus
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nvdimm libnvdimm for 5.18 2022-03-30 10:04:11 -07:00
nvme nvme-pci: disable namespace identifiers for Qemu controllers 2022-04-15 06:56:17 +02:00
nvmem nvmem: brcm_nvram: parse NVRAM content into NVMEM cells 2022-03-18 14:08:36 +01:00
of Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
opp
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parisc parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
parport parport_pc: Also enable driver for PCI systems 2022-03-18 14:01:41 +01:00
pci hyperv-fixes for 5.18-rc2 2022-04-07 06:35:34 -10:00
pcmcia
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peci
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perf arm_pmu: Validate single/group leader events 2022-04-13 11:48:45 +01:00
phy phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe() 2022-04-20 14:42:44 +05:30
pinctrl pinctrl: pistachio: fix use of irq_of_parse_and_map() 2022-04-24 16:24:09 +02:00
platform platform/x86/intel: pmc/core: change pmc_lpm_modes to static 2022-04-27 16:55:54 +02:00
pnp PNP update for 5.18-rc1 2022-03-21 14:46:01 -07:00
power power: supply: Reset err after not finding static battery 2022-04-13 12:05:22 +02:00
powercap
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pps pps: generators: pps_gen_parport: Switch to use module_parport_driver() 2022-03-18 14:01:19 +01:00
ps3
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ptp ptp: ocp: handle error from nvmem_device_find 2022-03-30 12:08:11 -07:00
pwm
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rapidio
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ras
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regulator regulator: atc260x: Fix missing active_discharge_on setting 2022-04-04 08:59:43 +01:00
remoteproc remoteproc updates for v5.18 2022-03-30 10:50:48 -07:00
reset reset: tegra-bpmp: Restore Handle errors in BPMP response 2022-04-04 11:14:13 +02:00
rpmsg rpmsg: ctrl: Introduce new RPMSG_CREATE/RELEASE_DEV_IOCTL controls 2022-03-13 11:49:53 -05:00
rtc RTC for 5.18 2022-04-01 09:37:18 -07:00
s390 s390/dasd: Use kzalloc instead of kmalloc/memset 2022-05-05 20:08:27 -06:00
sbus
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scsi scsi: sr: Do not leak information in ioctl 2022-04-18 22:48:31 -04:00
sh
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siox
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slimbus
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soc soc: imx: imx8m-blk-ctrl: Fix IMX8MN_DISPBLK_PD_ISI hang 2022-04-10 09:32:08 +08:00
soundwire Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
spi spi: Fixes for v5.18 2022-04-19 10:30:43 -07:00
spmi
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ssb
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staging staging: r8188eu: Fix PPPoE tag insertion on little endian systems 2022-04-04 16:35:20 +02:00
target scsi: target: pscsi: Set SCF_TREAT_READ_AS_NORMAL flag only if there is valid data 2022-04-27 22:40:09 -04:00
tc
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tee tee: optee: add missing mutext_destroy in optee_ffa_probe 2022-04-05 08:56:26 +02:00
thermal thermal: k3_j72xx_bandgap: Add the bandgap driver support 2022-05-19 12:11:53 +02:00
thunderbolt Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
tty tty: n_gsm: fix sometimes uninitialized warning in gsm_dlci_modem_output() 2022-04-26 08:09:46 +02:00
uio
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usb usb: phy: generic: Get the vbus supply 2022-04-26 14:10:54 +02:00
vdpa virtio: fixes, cleanups 2022-04-05 10:40:52 -07:00
vfio vfio/pci: Fix vf_token mechanism when device-specific VF drivers are used 2022-04-13 11:37:44 -06:00
vhost virtio: features, fixes 2022-03-31 13:57:15 -07:00
video drm-misc-fixes for v5.18-rc6: 2022-05-06 10:56:38 +10:00
virt Random number generator fixes for Linux 5.18-rc1. 2022-03-31 14:51:34 -07:00
virtio virtio: fixes, cleanups 2022-04-05 10:40:52 -07:00
visorbus
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vlynq
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vme
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w1 w1: w1_therm: Add support for Maxim MAX31850 thermoelement IF. 2022-03-18 14:07:09 +01:00
watchdog linux-watchdog 5.18-rc1 tag 2022-03-31 14:14:03 -07:00
xen xen: Convert kmap() to kmap_local_page() 2022-04-20 15:22:18 -05:00
zorro
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Kconfig
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Makefile
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