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846f5fd2d1
Add support for the on-die Thermal Monitoring Unit (TMU) of the new QorIQ/Layerscape SoCs (LX2160A, LS1028A, LS1088A, ...): examples on a lx2160: => temperature list | Device | Driver | Parent | tmu@1f80000 | imx_tmu | root_driver | cluster67-thermal | imx_tmu | tmu@1f80000 | ddr1-cluster5-thermal | imx_tmu | tmu@1f80000 | wriop-thermal | imx_tmu | tmu@1f80000 | dce-qbman-hsio2-thermal | imx_tmu | tmu@1f80000 | ccn-dpaa-tbu-thermal | imx_tmu | tmu@1f80000 | cluster4-hsio3-thermal | imx_tmu | tmu@1f80000 | cluster23-thermal | imx_tmu | tmu@1f80000 => temperature get tmu@1f80000 tmu@1f80000: 82000 mC => temperature get wriop-thermal wriop-thermal: 81000 mC The parent tmu@... node owns the MMIO and calibration; one UCLASS_THERMAL device is bound per/thermal-zones site so each shows up by its zone name: => dm tree ... thermal 2 [ + ] imx_tmu |-- tmu@1f80000 thermal 3 [ + ] imx_tmu | |-- cluster67-thermal thermal 4 [ + ] imx_tmu | |-- ddr1-cluster5-thermal thermal 5 [ + ] imx_tmu | |-- wriop-thermal thermal 6 [ + ] imx_tmu | |-- dce-qbman-hsio2-thermal thermal 7 [ + ] imx_tmu | |-- ccn-dpaa-tbu-thermal thermal 8 [ + ] imx_tmu | |-- cluster4-hsio3-thermal thermal 9 [ + ] imx_tmu | `-- cluster23-thermal ... The dtsi additions mirror the existing fsl-ls1028a.dtsi: the LX2160A SoC dtsi gains the tmu@1f80000 node plus a thermal-zones hierarchy with 7 sites: cluster67-thermal site 0 A72 clusters 6 + 7 ddr1-cluster5-thermal site 1 DDR1 + A72 cluster 5 wriop-thermal site 2 WRIOP dce-qbman-hsio2-thermal site 3 DCE + QBMAN + HSIO2 ccn-dpaa-tbu-thermal site 4 CCN508 + DPAA + TBU cluster4-hsio3-thermal site 5 A72 cluster 4 + HSIO3 cluster23-thermal site 6 A72 clusters 2 + 3 Signed-off-by: Vincent Jardin <vjardin@free.fr> Suggested-by: Tom Rini <trini@konsulko.com> Inspired-by: Peng Fan <peng.fan@oss.nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>