Re: [PATCH v2 0/5] PM: domains: Add helpers for multi PM domains to avoid open-coding
On Fri, Jan 26, 2024 at 05:12:12PM +0100, Ulf Hansson wrote: > On Fri, 5 Jan 2024 at 17:01, Ulf Hansson wrote: > > > > Updates in v2: > > - Ccing Daniel Baluta and Iuliana Prodan the NXP remoteproc patches > > to > > requests help with testing. > > - Fixed NULL pointer bug in patch1, pointed out by Nikunj. > > - Added some tested/reviewed-by tags. > > > > > > Attaching/detaching of a device to multiple PM domains has started to > > become a > > common operation for many drivers, typically during ->probe() and > > ->remove(). > > In most cases, this has lead to lots of boilerplate code in the drivers. > > > > This series adds a pair of helper functions to manage the attach/detach of a > > device to its multiple PM domains. Moreover, a couple of drivers have been > > converted to use the new helpers as a proof of concept. > > > > Note 1) > > The changes in the drivers have only been compile tested, while the helpers > > have been tested along with a couple of local dummy drivers that I have > > hacked > > up to model both genpd providers and genpd consumers. > > > > Note 2) > > I was struggling to make up mind if we should have a separate helper to > > attach > > all available power-domains described in DT, rather than providing "NULL" > > to the > > dev_pm_domain_attach_list(). I decided not to, but please let me know if you > > prefer the other option. > > > > Note 3) > > For OPP integration, as a follow up I am striving to make the > > dev_pm_opp_attach_genpd() redundant. Instead I think we should move towards > > using dev_pm_opp_set_config()->_opp_set_required_devs(), which would allow > > us to > > use the helpers that $subject series is adding. > > > > Kind regards > > Ulf Hansson > > Rafael, Greg, do have any objections to this series or would you be > okay that I queue this up via my pmdomain tree? I'll defer to Rafael here.
Re: [PATCH v2 0/5] PM: domains: Add helpers for multi PM domains to avoid open-coding
On Fri, 5 Jan 2024 at 17:01, Ulf Hansson wrote: > > Updates in v2: > - Ccing Daniel Baluta and Iuliana Prodan the NXP remoteproc patches to > requests help with testing. > - Fixed NULL pointer bug in patch1, pointed out by Nikunj. > - Added some tested/reviewed-by tags. > > > Attaching/detaching of a device to multiple PM domains has started to become a > common operation for many drivers, typically during ->probe() and ->remove(). > In most cases, this has lead to lots of boilerplate code in the drivers. > > This series adds a pair of helper functions to manage the attach/detach of a > device to its multiple PM domains. Moreover, a couple of drivers have been > converted to use the new helpers as a proof of concept. > > Note 1) > The changes in the drivers have only been compile tested, while the helpers > have been tested along with a couple of local dummy drivers that I have hacked > up to model both genpd providers and genpd consumers. > > Note 2) > I was struggling to make up mind if we should have a separate helper to attach > all available power-domains described in DT, rather than providing "NULL" to > the > dev_pm_domain_attach_list(). I decided not to, but please let me know if you > prefer the other option. > > Note 3) > For OPP integration, as a follow up I am striving to make the > dev_pm_opp_attach_genpd() redundant. Instead I think we should move towards > using dev_pm_opp_set_config()->_opp_set_required_devs(), which would allow us > to > use the helpers that $subject series is adding. > > Kind regards > Ulf Hansson Rafael, Greg, do have any objections to this series or would you be okay that I queue this up via my pmdomain tree? Kind regards Uffe > > > Ulf Hansson (5): > PM: domains: Add helper functions to attach/detach multiple PM domains > remoteproc: imx_dsp_rproc: Convert to > dev_pm_domain_attach|detach_list() > remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list() > remoteproc: qcom_q6v5_adsp: Convert to > dev_pm_domain_attach|detach_list() > media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec > > drivers/base/power/common.c | 134 +++ > drivers/media/platform/qcom/venus/core.c | 12 +- > drivers/media/platform/qcom/venus/core.h | 7 +- > .../media/platform/qcom/venus/pm_helpers.c| 48 ++ > drivers/remoteproc/imx_dsp_rproc.c| 82 + > drivers/remoteproc/imx_rproc.c| 73 +--- > drivers/remoteproc/qcom_q6v5_adsp.c | 160 -- > include/linux/pm_domain.h | 38 + > 8 files changed, 289 insertions(+), 265 deletions(-) > > -- > 2.34.1
Re: [PATCH v2 0/5] PM: domains: Add helpers for multi PM domains to avoid open-coding
On Mon, 8 Jan 2024 at 09:44, Daniel Baluta wrote: > > On Fri, Jan 5, 2024 at 6:02 PM Ulf Hansson wrote: > > > > Updates in v2: > > - Ccing Daniel Baluta and Iuliana Prodan the NXP remoteproc patches > > to > > requests help with testing. > > - Fixed NULL pointer bug in patch1, pointed out by Nikunj. > > - Added some tested/reviewed-by tags. > > Thanks for doing this Ulf. I remember that I've tried introducing the > helpers some time ago > but got side tracked by other tasks. > > https://lore.kernel.org/linux-pm/20200624103247.7115-1-daniel.bal...@oss.nxp.com/t/ Thanks for the pointer, yes I recall that too! I should have added your suggested-by tag to patch1 in this series, let me update that if/when I submit a new version! > > Will review the series and test the remoteproc part this week. Thanks a lot, looking forward to your feedback! Kind regards Uffe
Re: [PATCH v2 0/5] PM: domains: Add helpers for multi PM domains to avoid open-coding
On Fri, Jan 5, 2024 at 6:02 PM Ulf Hansson wrote: > > Updates in v2: > - Ccing Daniel Baluta and Iuliana Prodan the NXP remoteproc patches to > requests help with testing. > - Fixed NULL pointer bug in patch1, pointed out by Nikunj. > - Added some tested/reviewed-by tags. Thanks for doing this Ulf. I remember that I've tried introducing the helpers some time ago but got side tracked by other tasks. https://lore.kernel.org/linux-pm/20200624103247.7115-1-daniel.bal...@oss.nxp.com/t/ Will review the series and test the remoteproc part this week. Daniel.
[PATCH v2 0/5] PM: domains: Add helpers for multi PM domains to avoid open-coding
Updates in v2: - Ccing Daniel Baluta and Iuliana Prodan the NXP remoteproc patches to requests help with testing. - Fixed NULL pointer bug in patch1, pointed out by Nikunj. - Added some tested/reviewed-by tags. Attaching/detaching of a device to multiple PM domains has started to become a common operation for many drivers, typically during ->probe() and ->remove(). In most cases, this has lead to lots of boilerplate code in the drivers. This series adds a pair of helper functions to manage the attach/detach of a device to its multiple PM domains. Moreover, a couple of drivers have been converted to use the new helpers as a proof of concept. Note 1) The changes in the drivers have only been compile tested, while the helpers have been tested along with a couple of local dummy drivers that I have hacked up to model both genpd providers and genpd consumers. Note 2) I was struggling to make up mind if we should have a separate helper to attach all available power-domains described in DT, rather than providing "NULL" to the dev_pm_domain_attach_list(). I decided not to, but please let me know if you prefer the other option. Note 3) For OPP integration, as a follow up I am striving to make the dev_pm_opp_attach_genpd() redundant. Instead I think we should move towards using dev_pm_opp_set_config()->_opp_set_required_devs(), which would allow us to use the helpers that $subject series is adding. Kind regards Ulf Hansson Ulf Hansson (5): PM: domains: Add helper functions to attach/detach multiple PM domains remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list() remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list() remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list() media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec drivers/base/power/common.c | 134 +++ drivers/media/platform/qcom/venus/core.c | 12 +- drivers/media/platform/qcom/venus/core.h | 7 +- .../media/platform/qcom/venus/pm_helpers.c| 48 ++ drivers/remoteproc/imx_dsp_rproc.c| 82 + drivers/remoteproc/imx_rproc.c| 73 +--- drivers/remoteproc/qcom_q6v5_adsp.c | 160 -- include/linux/pm_domain.h | 38 + 8 files changed, 289 insertions(+), 265 deletions(-) -- 2.34.1