kernel/linux.git/drivers/firmware/imx, branch v6.18.21

firmware: imx: scu-irq: Set mu_resource_id before get handle

2026-01-23T10:21:12+00:00

commit ff3f9913bc0749364fbfd86ea62ba2d31c6136c8 upstream. mu_resource_id is referenced in imx_scu_irq_get_status() and imx_scu_irq_group_enable() which could be used by other modules, so need to set correct value before using imx_sc_irq_ipc_handle in SCU API call. Reviewed-by: Frank Li Signed-off-by: Peng Fan Signed-off-by: Shawn Guo Fixes: 81fb53feb66a ("firmware: imx: scu-irq: Init workqueue before request mbox channel") Cc: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

firmware: imx: scu-irq: Init workqueue before request mbox channel

2026-01-02T11:56:59+00:00

[ Upstream commit 81fb53feb66a3aefbf6fcab73bb8d06f5b0c54ad ] With mailbox channel requested, there is possibility that interrupts may come in, so need to make sure the workqueue is initialized before the queue is scheduled by mailbox rx callback. Reviewed-by: Frank Li Signed-off-by: Peng Fan Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin

firmware: imx: scu-irq: fix OF node leak in

2025-12-18T13:02:38+00:00

[ Upstream commit ee67247843a2b62d1473cfa4df300e69b5190ccf ] imx_scu_enable_general_irq_channel() calls of_parse_phandle_with_args(), but does not release the OF node reference. Add a of_node_put() call to release the reference. Fixes: 851826c7566e ("firmware: imx: enable imx scu general irq function") Reviewed-by: Frank Li Signed-off-by: Peng Fan Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin

firmware: imx: Add i.MX95 SCMI CPU driver

2025-04-14T12:55:04+00:00

The i.MX95 System manager exports SCMI CPU protocol for linux to manage cpu cores. The driver is to use the cpu Protocol interface to start, stop a cpu cores (eg, M7). Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Message-Id: <20250408-imx-lmm-cpu-v4-6-4c5f4a456e49@nxp.com> Signed-off-by: Sudeep Holla

firmware: imx: Add i.MX95 SCMI LMM driver

2025-04-14T12:55:04+00:00

The i.MX95 System manager exports SCMI LMM protocol for linux to manage Logical Machines. The driver is to use the LMM Protocol interface to boot, shutdown a LM. Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Message-Id: <20250408-imx-lmm-cpu-v4-5-4c5f4a456e49@nxp.com> Signed-off-by: Sudeep Holla

Merge tag 'imx-fixes-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

2025-03-06T15:32:48+00:00

i.MX fixes for 6.14: - A tqma8mpql board fix from Alexander Stein to correct vqmmc-supply for usdhc3 - A change from Joe Hattori to fix OF node leak in imx-scu driver probe - A soc-imx8m driver fix from Peng Fan unregister cpufreq and soc device in cleanup path - A couple of changes from Stefan Eichenberger to fix iMX6 Apalis poweroff and iMX8M verdin-dahlia sound-card descriptions * tag 'imx-fixes-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: freescale: imx8mm-verdin-dahlia: add Microphone Jack to sound card arm64: dts: freescale: imx8mp-verdin-dahlia: add Microphone Jack to sound card soc: imx8m: Unregister cpufreq and soc dev in cleanup path ARM: dts: imx6qdl-apalis: Fix poweroff on Apalis iMX6 arm64: dts: freescale: tqma8mpql: Fix vqmmc-supply firmware: imx-scu: fix OF node leak in .probe() Link: https://lore.kernel.org/r/Z8A+rihFV4K3l8QR@dragon Signed-off-by: Arnd Bergmann

firmware: imx-scu: fix OF node leak in .probe()

2025-02-18T03:22:50+00:00

imx_scu_probe() calls of_parse_phandle_with_args(), but does not release the OF node reference obtained by it. Add a of_node_put() call after done with the node. Fixes: f25a066d1a07 ("firmware: imx-scu: Support one TX and one RX") Signed-off-by: Joe Hattori Signed-off-by: Shawn Guo

firmware: imx: IMX_SCMI_MISC_DRV should depend on ARCH_MXC

2025-02-14T14:09:42+00:00

The i.MX System Controller Management Interface firmware is only present on Freescale i.MX SoCs. Hence add a dependency on ARCH_MXC, to prevent asking the user about this driver when configuring a kernel without Freescale i.MX platform support. Fixes: 514b2262ade48a05 ("firmware: arm_scmi: Fix i.MX build dependency") Signed-off-by: Geert Uytterhoeven Reviewed-by: Fabio Estevam Signed-off-by: Arnd Bergmann

firmware: arm_scmi: Fix i.MX build dependency

2024-12-03T15:47:11+00:00

The newly added SCMI vendor driver references functions in the protocol driver but needs a Kconfig dependency to ensure it can link, essentially the Kconfig dependency needs to be reversed to match the link time dependency: | arm-linux-gnueabi-ld: sound/soc/fsl/fsl_mqs.o: in function `fsl_mqs_sm_write': | fsl_mqs.c:(.text+0x1aa): undefined reference to `scmi_imx_misc_ctrl_set' | arm-linux-gnueabi-ld: sound/soc/fsl/fsl_mqs.o: in function `fsl_mqs_sm_read': | fsl_mqs.c:(.text+0x1ee): undefined reference to `scmi_imx_misc_ctrl_get' This however only works after changing the dependency in the SND_SOC_FSL_MQS driver as well, which uses 'select IMX_SCMI_MISC_DRV' to turn on a driver it depends on. This is generally a bad idea, so the best solution is to change that into a dependency. To allow the ASoC driver to keep building with the SCMI support, this needs to be an optional dependency that enforces the link-time dependency if IMX_SCMI_MISC_DRV is a loadable module but not depend on it if that is disabled. Fixes: 61c9f03e22fc ("firmware: arm_scmi: Add initial support for i.MX MISC protocol") Fixes: 101c9023594a ("ASoC: fsl_mqs: Support accessing registers by scmi interface") Signed-off-by: Arnd Bergmann Acked-by: Mark Brown Acked-by: Shengjiu Wang Message-Id: <20241115230555.2435004-1-arnd@kernel.org> Signed-off-by: Sudeep Holla

firmware: Switch back to struct platform_driver::remove()

2024-11-12T11:55:56+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/firmware to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/36974feb6035201d53384557259ec72fe311053b.1731397962.git.u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman