kernel/git/next/linux-next.git/drivers/pmdomain, branch fs-next

pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check

2026-07-13T10:42:17+00:00

Should probe fail for HW_VOTER type power domains, this driver was unconditionally trying to perform cleanup for DIRECT_CTL domains, but only after checking if the target domain is powered on... with the DIRECT_CTL scpsys_domain_is_on() code again. And there's more: the scpsys_domain_is_on() function is also being unconditionally used in the probe path, for any power domain that has flag MTK_SCPD_KEEP_DEFAULT_OFF! This bug was never experienced by anyone because the HWV domains never failed probe, and because none of those is declared with the aforementioned flag - but it's still something critical. In order to fix this, add a check for MTCMOS Type and, based on that, call the correct functions for an "is on" check, and also do the same for the cleanup path, calling the correct functions for the "power off" action. For the latter, since there's a call to pm_genpd_remove() right before calling power_off, be cautious and add a variation of the power off functions (with a _internal suffix) for those to get a pointer to scpsys_domain instead of one to generic_pm_domain as, even if that's still working, this is way too much fragile and would break at some point. Fixes: 88914db077b6 ("pmdomain: mediatek: Add support for Hardware Voter power domains") Signed-off-by: AngeloGioacchino Del Regno Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson

pmdomain: imx: Fix i.MX8MP VC8000E power up sequence

2026-07-08T15:11:50+00:00

Per errata[1]: ERR050531: VPU_NOC power down handshake may hang during VC8000E/VPUMIX power up/down cycling. Description: VC8000E reset de-assertion edge and AXI clock may have a timing issue. Workaround: Set bit2 (vc8000e_clk_en) of BLK_CLK_EN_CSR to 0 to gate off both AXI clock and VC8000E clock sent to VC8000E and AXI clock sent to VPU_NOC m_v_2 interface during VC8000E power up(VC8000E reset is de-asserted by HW) Add a bool variable is_errata_err050531 in 'struct imx8m_blk_ctrl_domain_data' to represent whether the workaround is needed. If is_errata_err050531 is true, first clear the clk before powering up gpc, then enable the clk after powering up gpc. [1] https://www.nxp.com/webapp/Download?colCode=IMX8MP_1P33A Fixes: a1a5f15f7f6cb ("soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl") Cc: stable@vger.kernel.org Signed-off-by: Peng Fan Reviewed-by: Frank Li Signed-off-by: Ulf Hansson

pmdomain: imx: Fix i.MX8MP power notifier

2026-07-08T15:11:50+00:00

Using imx8mm_vpu_power_notifier() for i.MX8MP is wrong, as it ungates the VPU clocks to provide the ADB clock, which is necessary on i.MX8MM, but on i.MX8MP there is a separate gate (bit 3) for the NoC. So add imx8mp_vpu_power_notifier() for i.MX8MP. Fixes: a1a5f15f7f6cb ("soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl") Cc: stable@vger.kernel.org Reviewed-by: Frank Li Signed-off-by: Peng Fan Signed-off-by: Ulf Hansson

pmdomain: imx93-blk-ctrl: Extract PHY as shared domain for DSI/CSI

2026-07-08T15:09:25+00:00

The MIPI DSI and CSI domains share control bits for clock and reset, which can lead to incorrect behavior if one domain disables the shared resource while the other is still active. To fix the issue, introduce a shared MIPI PHY power domain to own the common resources and make DSI and CSI its subdomains. This ensures the shared bits are properly managed and not disabled while still in use. Fixes: e9aa77d413c9 ("soc: imx: add i.MX93 media blk ctrl driver") Cc: stable@vger.kernel.org Signed-off-by: Guoniu Zhou Reviewed-by: Frank Li Reviewed-by: Peng Fan Signed-off-by: Ulf Hansson

Replace by more specific (c files)

2026-07-03T05:38:17+00:00

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

pmdomain: core: fix unused variable warning with !PM_GENERIC_DOMAINS_OF

2026-06-15T19:12:35+00:00

The genpd provider bus is really only used when CONFIG_PM_GENERIC_DOMAINS_OF is enabled, and since the recent deferred initialisation of domain parent devices, the root device pointer is otherwise unused. Fix the unused variable warning by moving the definition of the root device pointer inside the corresponding ifdef. Fixes: 92b69eff8012 ("pmdomain: core: fix early domain registration") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202606111746.kAxaAbwg-lkp@intel.com/ Signed-off-by: Johan Hovold Signed-off-by: Ulf Hansson

pmdomain: core: fix early domain registration

2026-06-11T14:05:45+00:00

A recent change switching to a dynamically allocated root device broke platforms like rcar-sysc that registers PM domains before the PM domain bus itself has been registered (cf. commit c5ae5a0c6112 ("pmdomain: renesas: rcar-sysc: Add genpd OF provider at postcore_initcall")). Defer the assignment of the parent root device until the domain is registered with driver core to avoid it being left unset. Fixes: a96e40f4afdc ("pmdomain: core: switch to dynamic root device") Reported-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/CAMuHMdUHabMGJyJ7e7yp7DLC+JJc9k6NK9p4anj2wRKNuwZUng@mail.gmail.com Signed-off-by: Johan Hovold Tested-by: Geert Uytterhoeven Signed-off-by: Ulf Hansson

pmdomain: Merge branch fixes into next

2026-06-03T10:10:40+00:00

Merge the pmdomain fixes for v7.1-rc[n] into the next branch, to allow them to get tested together with the pmdomain changes that are targeted for the next release. Signed-off-by: Ulf Hansson

pmdomain: mediatek: mfg: move __packed after struct name to fix kernel-doc

2026-06-03T10:04:31+00:00

The kernel-doc parser cannot parse 'struct __packed mtk_mfg_opp_entry {'. Move __packed to the closing brace, which is the more common kernel style. Assisted-by: Opencode:Big-pickle Signed-off-by: Rosen Penev Signed-off-by: Ulf Hansson

pmdomain: qcom: rpmpd: Add Shikra RPM Power Domains

2026-06-03T09:59:12+00:00

Add RPM power domain support for Shikra, reusing SM6125 power domains with RPM_SMD_LEVEL_TURBO_NO_CPR as the max state. Reviewed-by: Konrad Dybcio Signed-off-by: Rakesh Kota Reviewed-by: Dmitry Baryshkov Signed-off-by: Ulf Hansson