Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ae7413ce authored by Ram Chandrasekar's avatar Ram Chandrasekar
Browse files

drivers: thermal: bcl: Add BCL peripheral driver 



Add snapshot of BCL driver from kernel 4.9 as of 'commit
<a6431e8beca> ("drivers: thermal: bcl: Update vbat vlow and clow trip
threshold logic")'.

Change-Id: I903fdec14b1657e3da762e254de6a391ef8e630a
Signed-off-by: default avatarRam Chandrasekar <rkumbako@codeaurora.org>
parent 0b90b1e7

Documentation/devicetree/bindings/thermal/qcom-bcl.txt

0 → 100644
+44 −0
Original line number Diff line number Diff line 
===============================================================================

BCL PMIC Peripheral driver:

===============================================================================

Qualcomm Technologies, Inc's PMIC has battery current limiting peripheral, which can monitor for

high battery current and low battery voltage in the hardware. The BCL

peripheral driver interacts with the PMIC peripheral using the SPMI driver

interface. The hardware can take threshold for notifying for high battery

current or low battery voltage events.



Required Parameters:

- compatible: must be

	'qcom,msm-bcl-lmh' for bcl peripheral with LMH DCVSh interface.

- reg: <a b> where 'a' is the starting register address of the PMIC

	peripheral and 'b' is the size of the peripheral address space.

	If the BCL inhibit current derating feature is enabled, this must also

	have the PON spare registers as well. Example: <a b c d> where

	c is the first PON spare register that will be written and d is the

	size of the registers space needed to be written. Certain version

	of PMIC, can send interrupt to LMH hardware driver directly. In that

	case the shadow peripheral address space should be mentioned along

	with the bcl peripherals address.

- interrupts: <a b c> Where 'a' is the SLAVE ID of the PMIC, 'b' is

		the peripheral ID and 'c' is the interrupt number in PMIC.

- interrupt-names: user defined names for the interrupts. These

		interrupt names will be used by the drivers to identify the

		interrupts, instead of specifying the ID's. bcl driver will

		accept these five standard interrupts.

		"bcl-low-vbat"

		"bcl-very-low-vbat"

		"bcl-crit-low-vbat"

		"bcl-high-ibat"

		"bcl-very-high-ibat"





Optional Parameters:



		bcl@4200 {

			compatible = "qcom,msm-bcl";

			reg = <0x4200 0xFF 0x88e 0x2>;

			interrupts = <0x2 0x42 0x0>,

					<0x2 0x42 0x1>;

			interrupt-names = "bcl-high-ibat-int",

						"bcl-low-vbat-int";

		};

drivers/thermal/qcom/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -50,3 +50,14 @@ config REGULATOR_COOLING_DEVICE 
	  voltage.



	  If you want this support, you should say Y here.



config MSM_BCL_PERIPHERAL_CTL

	bool "BCL driver to control the PMIC BCL peripheral"

	depends on SPMI && THERMAL_OF

	help

	  Say Y here to enable this BCL PMIC peripheral driver. This driver

	  provides routines to configure and monitor the BCL

	  PMIC peripheral. This driver registers the battery current and

	  voltage sensors with the thermal core framework and can take

	  threshold input and notify the thermal core when the threshold is

	  reached.

drivers/thermal/qcom/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -4,3 +4,4 @@ obj-$(CONFIG_QTI_THERMAL_LIMITS_DCVS) += msm_lmh_dcvs.o lmh_dbg.o 
obj-$(CONFIG_QTI_VIRTUAL_SENSOR) += qti_virtual_sensor.o

obj-$(CONFIG_QTI_AOP_REG_COOLING_DEVICE) += regulator_aop_cdev.o

obj-$(CONFIG_REGULATOR_COOLING_DEVICE) += regulator_cdev.o

obj-$(CONFIG_MSM_BCL_PERIPHERAL_CTL) += bcl_peripheral.o

drivers/thermal/qcom/bcl_peripheral.c

0 → 100644
+787 −0

File added.

Preview size limit exceeded, changes collapsed.