On Thu, 26 Jun 2025 at 15:59, Hiago De Franco <hiagofra...@gmail.com> wrote: > > From: Hiago De Franco <hiago.fra...@toradex.com> > > This patch series depends on Ulf's patches that are currently under > review, "pmdomain: Add generic ->sync_state() support to genpd" [1]. > Without them, this series is not going to work. >
I thought we agreed to repost when the feature referred to above and the work in drivers/pmdomain/core.c will be merge. I'm not sure what to do with this patchset. > For the i.MX8X and i.MX8 family SoCs, currently when the remotecore is > started by the bootloader and the M core and A core are in the same > partition, the driver is not capable to detect the remote core and > report the correct state of it. > > This patch series implement a new function, dev_pm_genpd_is_on(), which > returns the power status of a given power domain (M core power domains > IMX_SC_R_M4_0_PID0 and IMX_SC_R_M4_0_MU_1A in this case). If it is > already powered on, the driver will attach to it. > > Finally, the imx_rproc_clk_enable() function was also changed to make it > return before dev_clk_get() is called, as it currently generates an SCU > fault reset if the remote core is already running and the kernel tries > to enable the clock again. These changes are a follow up from a v1 sent > to imx_rproc [2] and from a reported regression [3]. > > [1] https://lore.kernel.org/all/20250523134025.75130-1-ulf.hans...@linaro.org/ > [2] > https://lore.kernel.org/lkml/20250423155131.101473-1-hiagofra...@gmail.com/ > [3] https://lore.kernel.org/lkml/20250404141713.ac2ntcsjsf7epdfa@hiago-nb/ > > v6: > - Added "reviewed by" from Ulf and Bjorn. > - Fixed and improved commit descriptions of patches 2 and 3. > - Improved the comment inside imx_rproc.c file. > v5: > - https://lore.kernel.org/all/20250617193450.183889-1-hiagofra...@gmail.com/ > v4: > - https://lore.kernel.org/lkml/20250602131906.25751-1-hiagofra...@gmail.com/ > v3: > - https://lore.kernel.org/all/20250519171514.61974-1-hiagofra...@gmail.com/ > v2: > - https://lore.kernel.org/lkml/20250507160056.11876-1-hiagofra...@gmail.com/ > v1: > - https://lore.kernel.org/lkml/20250505154849.64889-1-hiagofra...@gmail.com/ > > Hiago De Franco (3): > pmdomain: core: introduce dev_pm_genpd_is_on() > remoteproc: imx_rproc: skip clock enable when M-core is managed by the > SCU > remoteproc: imx_rproc: detect and attach to pre-booted remote cores > > drivers/pmdomain/core.c | 33 +++++++++++++++++++++++++++ > drivers/remoteproc/imx_rproc.c | 41 ++++++++++++++++++++++++++++------ > include/linux/pm_domain.h | 6 +++++ > 3 files changed, 73 insertions(+), 7 deletions(-) > > -- > 2.39.5 >
