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path: root/drivers/thermal/qcom/tsens-v2.c
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2018-10-22thermal: tsens: Pass register offsets as private dataAmit Kucheria
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 <amit.kucheria@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-10-22thermal: tsens: Rename map field in order to add a second address mapAmit Kucheria
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 <amit.kucheria@linaro.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-07-27thermal: tsens: Fix negative temperature reportingAmit Kucheria
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 <amit.kucheria@linaro.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-07-27thermal: tsens: Rename variableAmit Kucheria
We're actually reading the temperature from the status register. Fix the variable name to reflect that. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-07-27thermal: tsens: Add generic support for TSENS v2 IPAmit Kucheria
SDM845 uses v2 of the TSENS IP block but the get_temp() function appears to be identical across v2.x.y in code seen so far. We use the generic get_temp() function defined as part of ops_generic_v2. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-07-27thermal: tsens: Rename tsens-8996 to tsens-v2 for reuseAmit Kucheria
The TSENS block inside the 8996 is internally classified as version 2 of the IP. Several other SoC families use this block and can share this code. We rename get_temp() to reflect that it can be used across the v2 family. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>