kernel.git/drivers/pmdomain, branch linux-6.12.y

pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains

2026-02-11T12:40:16Z

commit 6bd8b4a92a901fae1a422e6f914801063c345e8d upstream. Fix out-of-range access of bc->domains in imx8m_blk_ctrl_remove(). Fixes: 2684ac05a8c4 ("soc: imx: add i.MX8M blk-ctrl driver") Cc: stable@kernel.org Signed-off-by: Xu Yang Reviewed-by: Daniel Baluta Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: imx8mp-blk-ctrl: Keep usb phy power domain on for system wakeup

2026-02-11T12:40:16Z

commit e2c4c5b2bbd4f688a0f9f6da26cdf6d723c53478 upstream. USB system wakeup need its PHY on, so add the GENPD_FLAG_ACTIVE_WAKEUP flags to USB PHY genpd configuration. Signed-off-by: Xu Yang Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: imx: gpcv2: Fix the imx8mm gpu hang due to wrong adb400 reset

2026-02-11T12:40:16Z

commit ae0a24c5a8dcea20bf8e344eadf6593e6d1959c3 upstream. On i.MX8MM, the GPUMIX, GPU2D, and GPU3D blocks share a common reset domain. Due to this hardware limitation, powering off/on GPU2D or GPU3D also triggers a reset of the GPUMIX domain, including its ADB400 port. However, the ADB400 interface must always be placed into power‑down mode before being reset. Currently the GPUMIX and GPU2D/3D power domains rely on runtime PM to handle dependency ordering. In some corner cases, the GPUMIX power off sequence is skipped, leaving the ADB400 port active when GPU2D/3D reset. This causes the GPUMIX ADB400 port to be reset while still active, leading to unpredictable bus behavior and GPU hangs. To avoid this, refine the power‑domain control logic so that the GPUMIX ADB400 port is explicitly powered down and powered up as part of the GPU power domain on/off sequence. This ensures proper ordering and prevents incorrect ADB400 reset. Suggested-by: Lucas Stach Signed-off-by: Jacky Bai Reviewed-by: Lucas Stach Tested-by: Philipp Zabel Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: imx8mp-blk-ctrl: Keep gpc power domain on for system wakeup

2026-02-11T12:40:16Z

commit e9ab2b83893dd03cf04d98faded81190e635233f upstream. Current design will power off all dependent GPC power domains in imx8mp_blk_ctrl_suspend(), even though the user device has enabled wakeup capability. The result is that wakeup function never works for such device. An example will be USB wakeup on i.MX8MP. PHY device '382f0040.usb-phy' is attached to power domain 'hsioblk-usb-phy2' which is spawned by hsio block control. A virtual power domain device 'genpd:3:32f10000.blk-ctrl' is created to build connection with 'hsioblk-usb-phy2' and it depends on GPC power domain 'usb-otg2'. If device '382f0040.usb-phy' enable wakeup, only power domain 'hsioblk-usb-phy2' keeps on during system suspend, power domain 'usb-otg2' is off all the time. So the wakeup event can't happen. In order to further establish a connection between the power domains related to GPC and block control during system suspend, register a genpd power on/off notifier for the power_dev. This allows us to prevent the GPC power domain from being powered off, in case the block control power domain is kept on to serve system wakeup. Suggested-by: Ulf Hansson Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl") Cc: stable@vger.kernel.org Signed-off-by: Xu Yang Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: qcom: rpmpd: fix off-by-one error in clamping to the highest state

2026-02-11T12:40:15Z

commit 8aa6f7697f5981d336cac7af6ddd182a03c6da01 upstream. As it is indicated by the comment, the rpmpd_aggregate_corner() function tries to clamp the state to the highest corner/level supported by the given power domain, however the calculation of the highest state contains an off-by-one error. The 'max_state' member of the 'rpmpd' structure indicates the highest corner/level, and as such it does not needs to be decremented. Change the code to use the 'max_state' value directly to avoid the error. Fixes: 98c8b3efacae ("soc: qcom: rpmpd: Add sync_state") Signed-off-by: Gabor Juhos Reviewed-by: Konrad Dybcio Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu

2026-01-30T09:28:46Z

commit 3de49966499634454fd59e0e6fecd50baab7febd upstream. For i.MX8MQ platform, the ADB in the VPUMIX domain has no separate reset and clock enable bits, but is ungated and reset together with the VPUs. So we can't reset G1 or G2 separately, it may led to the system hang. Remove rst_mask and clk_mask of imx8mq_vpu_blk_ctl_domain_data. Let imx8mq_vpu_power_notifier() do really vpu reset. Fixes: 608d7c325e85 ("soc: imx: imx8m-blk-ctrl: add i.MX8MQ VPU blk-ctrl") Signed-off-by: Ming Qian Reviewed-by: Benjamin Gaignard Reviewed-by: Peng Fan Reviewed-by: Frank Li Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: qcom: rpmhpd: Add MXC to SC8280XP

2026-01-30T09:28:37Z

[ Upstream commit 5bc3e720e725cd5fa34875fa1e5434d565858067 ] This was apparently accounted for in dt-bindings, but never made its way into the driver. Fix it for SC8280XP and its VDD_GFX-less cousin, SA8540P. Fixes: f68f1cb3437d ("soc: qcom: rpmhpd: add sc8280xp & sa8540p rpmh power-domains") Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio Reviewed-by: Ulf Hansson Link: https://lore.kernel.org/r/20251202-topic-8280_mxc-v2-2-46cdf47a829e@oss.qualcomm.com Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin

pmdomain: imx: Fix reference count leak in imx_gpc_probe()

2026-01-08T09:14:49Z

commit 73cb5f6eafb0ac7aea8cdeb8ff12981aa741d8fb upstream. of_get_child_by_name() returns a node pointer with refcount incremented. Use the __free() attribute to manage the pgc_node reference, ensuring automatic of_node_put() cleanup when pgc_node goes out of scope. This eliminates the need for explicit error handling paths and avoids reference count leaks. Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang Reviewed-by: Frank Li Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: samsung: plug potential memleak during probe

2025-11-24T09:36:04Z

commit 90c82941adf1986364e0f82c35cf59f2bf5f6a1d upstream. of_genpd_add_provider_simple() could fail, in which case this code leaks the domain name, pd->pd.name. Use devm_kstrdup_const() to plug this leak. As a side-effect, we can simplify existing error handling. Fixes: c09a3e6c97f0 ("soc: samsung: pm_domains: Convert to regular platform driver") Cc: stable@vger.kernel.org Reviewed-by: Peter Griffin Reviewed-by: Krzysztof Kozlowski Signed-off-by: André Draszik Tested-by: Marek Szyprowski Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

pmdomain: imx: Fix reference count leak in imx_gpc_remove

2025-11-24T09:36:04Z

commit bbde14682eba21d86f5f3d6fe2d371b1f97f1e61 upstream. of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not needed anymore. Add the missing of_node_put() to avoid refcount leak. Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman