kernel/linux.git/drivers/thermal/qcom, branch linux-4.20.y

thermal: tsens: qcom: do not create duplicate regmap debugfs entries

2019-02-12T19:02:30+00:00

[ Upstream commit 4ab248b3b10a58e379e2d32333fff99ea5ca256c ] Regmap would use device name to create debugfs entries. If the device has multiple regmaps it is recommended to use name field in regmap_config. Fix this by providing name to the regmap configs correctly. Without this patch we would see below error on DB820c. qcom-tsens 4a9000.thermal-sensor: Failed to create 4a9000.thermal-sensor debugfs directory Signed-off-by: Srinivas Kandagatla Acked-by: Amit Kucheria Tested-by: Amit Kucheria Signed-off-by: Eduardo Valentin Signed-off-by: Sasha Levin

thermal: tsens: Check if the IP is correctly enabled by firmware

2018-10-23T00:35:30+00:00

The SROT registers are initialised by the secure firmware at boot. We don't have write access to the registers. Check if the block is enabled before continuing. Signed-off-by: Amit Kucheria Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Pass register offsets as private data

2018-10-23T00:34:33+00:00

Registers have moved around across TSENS generations. For example, the CTRL register was at offset 0x0 in the SROT region on msm8916 but is at offset 0x4 in newer v2 based TSENS HW blocks. Allow passing offsets of important registers so that we can continue to use common functions. Signed-off-by: Amit Kucheria Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Add the SROT address map

2018-10-23T00:33:48+00:00

On platforms whose device trees specify two address spaces for TSENS, the second one points to the SROT registers. Initialise the SROT map on those platforms. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Rename map field in order to add a second address map

2018-10-23T00:33:23+00:00

The TSENS driver currently only uses a limited set of registers from the TM address space. So it was ok to map just that set of registers and call it "map". We'd now like to map a second set: SROT registers to introduce new functionality. Rename the "map" field to a more appropriate "tm_map". The 8960 doesn't have a clear split between TM and SROT registers. To avoid complicating the data structure, it will switchover to using tm_map for its maps. There is no functional change with this patch. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Get rid of dead code

2018-10-23T00:32:38+00:00

hw_id is dynamically allocated but not used anywhere. Get rid of dead code. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Add SPDX license identifiers

2018-10-23T00:32:03+00:00

The TSENS drivers use a GPL-2.0 license. Replace with equivalent SPDX tags and delete the full license text. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: Prepare 8916 and 8974 tsens to use SROT and TM address space

2018-10-23T00:31:15+00:00

We've already converted over the devicetree of platforms using v2 version of the TSENS IP to use two address spaces. Now prepare to convert over the 8916 and 8974 platforms to use separate SROT and TM address spaces. This patch will work with device trees with one or two address spaces because we set the tm_offset in commit 5b1283984fa3 ("thermal: tsens: Add support to split up register address space into two"). Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Signed-off-by: Eduardo Valentin

thermal: tsens: Fix negative temperature reporting

2018-07-27T22:16:55+00:00

The current code will always return 0xffffffff in case of negative temperatures due to a bug in how the binary sign extension is being done. Use sign_extend32() instead. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin

thermal: tsens: switch from of_iomap() to devm_ioremap_resource()

2018-07-27T22:15:57+00:00

devm_ioremap_resources() automatically requests resources (so that the I/O region shows up in /proc/iomem) and devm_ wrappers do better error handling and unmapping of the I/O region when needed. Signed-off-by: Amit Kucheria Reviewed-by: Matthias Kaehlcke Reviewed-by: Bjorn Andersson Signed-off-by: Eduardo Valentin