| Message ID | 20240105160103.183092-1-ulf.hansson@linaro.org |
|---|---|
| Headers | show |
| Series | PM: domains: Add helpers for multi PM domains to avoid open-coding | expand |
On Fri, Jan 5, 2024 at 6:02 PM Ulf Hansson <ulf.hansson@linaro.org> 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.baluta@oss.nxp.com/t/ Will review the series and test the remoteproc part this week. Daniel.
On Fri, 5 Jan 2024 at 17:01, Ulf Hansson <ulf.hansson@linaro.org> 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
On Fri, Jan 26, 2024 at 05:12:12PM +0100, Ulf Hansson wrote: > On Fri, 5 Jan 2024 at 17:01, Ulf Hansson <ulf.hansson@linaro.org> 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.
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(-)