* cpufreq-dt error: failed to init cpufreq table: -61 @ 2015-10-06 13:25 Belisko Marek 2015-10-06 14:00 ` Felipe Balbi 0 siblings, 1 reply; 7+ messages in thread From: Belisko Marek @ 2015-10-06 13:25 UTC (permalink / raw) To: Tony Lindgren Cc: Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list Hi Tony, I'm using custom am33xx board where mpu voltage can be changed through gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator node and also operating-points to DT. Gpio regulator seems to be working fine but during probing cpufreq-dt I get error: failed to init cpufreq table: -61 I did small investigation and seem that dev_pm_opp_init_cpufreq_table fails at first condition dev_pm_opp_get_opp_count <= 0 and this is because opp_list is empty. So it seems that any opp for am33xx aren't defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data but there is nothing am33xx specific. It is known problem or exist some patches around to fix that? Many thanks. BR, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 13:25 cpufreq-dt error: failed to init cpufreq table: -61 Belisko Marek @ 2015-10-06 14:00 ` Felipe Balbi 2015-10-06 14:03 ` Belisko Marek 0 siblings, 1 reply; 7+ messages in thread From: Felipe Balbi @ 2015-10-06 14:00 UTC (permalink / raw) To: Belisko Marek, Tony Lindgren Cc: Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list [-- Attachment #1: Type: text/plain, Size: 1107 bytes --] Hi, Belisko Marek <marek.belisko@gmail.com> writes: > Hi Tony, > > I'm using custom am33xx board where mpu voltage can be changed through > gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator > node and also operating-points to DT. Gpio regulator seems to be > working fine but during probing cpufreq-dt I get error: > failed to init cpufreq table: -61 > > I did small investigation and seem that dev_pm_opp_init_cpufreq_table > fails at first condition dev_pm_opp_get_opp_count <= 0 and this is > because opp_list is empty. So it seems that any opp for am33xx aren't > defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data > but there is nothing am33xx specific. It is known problem or exist > some patches around to fix that? Many thanks. OPP initialization is not in mainline yet, there are some out-of-tree patches which TI has been working on. If you want to use them, have a look at TI's vendor kernel at [1] [1] http://git.ti.com/ti-linux-kernel/ti-linux-kernel/blobs/ti-lsk-linux-4.1.y/arch/arm/mach-omap2/opp33xx_data.c -- balbi [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 818 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 14:00 ` Felipe Balbi @ 2015-10-06 14:03 ` Belisko Marek 2015-10-06 14:16 ` Belisko Marek 0 siblings, 1 reply; 7+ messages in thread From: Belisko Marek @ 2015-10-06 14:03 UTC (permalink / raw) To: Felipe Balbi Cc: Tony Lindgren, Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list Hi Felipe, On Tue, Oct 6, 2015 at 4:00 PM, Felipe Balbi <balbi@ti.com> wrote: > > Hi, > > Belisko Marek <marek.belisko@gmail.com> writes: >> Hi Tony, >> >> I'm using custom am33xx board where mpu voltage can be changed through >> gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator >> node and also operating-points to DT. Gpio regulator seems to be >> working fine but during probing cpufreq-dt I get error: >> failed to init cpufreq table: -61 >> >> I did small investigation and seem that dev_pm_opp_init_cpufreq_table >> fails at first condition dev_pm_opp_get_opp_count <= 0 and this is >> because opp_list is empty. So it seems that any opp for am33xx aren't >> defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data >> but there is nothing am33xx specific. It is known problem or exist >> some patches around to fix that? Many thanks. > > OPP initialization is not in mainline yet, there are some out-of-tree > patches which TI has been working on. If you want to use them, have a > look at TI's vendor kernel at [1] Thanks for link. One thing which is still not puzzled before I use 3.9 kernel and it was working fine it's stops working when bumped to 4.1. > > [1] http://git.ti.com/ti-linux-kernel/ti-linux-kernel/blobs/ti-lsk-linux-4.1.y/arch/arm/mach-omap2/opp33xx_data.c > > -- > balbi BR, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 14:03 ` Belisko Marek @ 2015-10-06 14:16 ` Belisko Marek 2015-10-06 15:07 ` Felipe Balbi 0 siblings, 1 reply; 7+ messages in thread From: Belisko Marek @ 2015-10-06 14:16 UTC (permalink / raw) To: Felipe Balbi Cc: Tony Lindgren, Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list Hi, On Tue, Oct 6, 2015 at 4:03 PM, Belisko Marek <marek.belisko@gmail.com> wrote: > Hi Felipe, > > On Tue, Oct 6, 2015 at 4:00 PM, Felipe Balbi <balbi@ti.com> wrote: >> >> Hi, >> >> Belisko Marek <marek.belisko@gmail.com> writes: >>> Hi Tony, >>> >>> I'm using custom am33xx board where mpu voltage can be changed through >>> gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator >>> node and also operating-points to DT. Gpio regulator seems to be >>> working fine but during probing cpufreq-dt I get error: >>> failed to init cpufreq table: -61 >>> >>> I did small investigation and seem that dev_pm_opp_init_cpufreq_table >>> fails at first condition dev_pm_opp_get_opp_count <= 0 and this is >>> because opp_list is empty. So it seems that any opp for am33xx aren't >>> defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data >>> but there is nothing am33xx specific. It is known problem or exist >>> some patches around to fix that? Many thanks. >> >> OPP initialization is not in mainline yet, there are some out-of-tree >> patches which TI has been working on. If you want to use them, have a >> look at TI's vendor kernel at [1] > Thanks for link. One thing which is still not puzzled before I use 3.9 > kernel and it was working fine > it's stops working when bumped to 4.1. Sorry information was incorrect. On 3.9 kernel we did use tps, pmic now we have only gpio regulator so this is the difference. >> >> [1] http://git.ti.com/ti-linux-kernel/ti-linux-kernel/blobs/ti-lsk-linux-4.1.y/arch/arm/mach-omap2/opp33xx_data.c >> >> -- >> balbi > BR, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 14:16 ` Belisko Marek @ 2015-10-06 15:07 ` Felipe Balbi 2015-10-06 16:10 ` Felipe Balbi 2015-10-06 18:57 ` Belisko Marek 0 siblings, 2 replies; 7+ messages in thread From: Felipe Balbi @ 2015-10-06 15:07 UTC (permalink / raw) To: Belisko Marek Cc: Tony Lindgren, Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list [-- Attachment #1: Type: text/plain, Size: 1741 bytes --] Belisko Marek <marek.belisko@gmail.com> writes: > Hi, > > On Tue, Oct 6, 2015 at 4:03 PM, Belisko Marek <marek.belisko@gmail.com> wrote: >> Hi Felipe, >> >> On Tue, Oct 6, 2015 at 4:00 PM, Felipe Balbi <balbi@ti.com> wrote: >>> >>> Hi, >>> >>> Belisko Marek <marek.belisko@gmail.com> writes: >>>> Hi Tony, >>>> >>>> I'm using custom am33xx board where mpu voltage can be changed through >>>> gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator >>>> node and also operating-points to DT. Gpio regulator seems to be >>>> working fine but during probing cpufreq-dt I get error: >>>> failed to init cpufreq table: -61 >>>> >>>> I did small investigation and seem that dev_pm_opp_init_cpufreq_table >>>> fails at first condition dev_pm_opp_get_opp_count <= 0 and this is >>>> because opp_list is empty. So it seems that any opp for am33xx aren't >>>> defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data >>>> but there is nothing am33xx specific. It is known problem or exist >>>> some patches around to fix that? Many thanks. >>> >>> OPP initialization is not in mainline yet, there are some out-of-tree >>> patches which TI has been working on. If you want to use them, have a >>> look at TI's vendor kernel at [1] >> Thanks for link. One thing which is still not puzzled before I use 3.9 >> kernel and it was working fine >> it's stops working when bumped to 4.1. > > Sorry information was incorrect. On 3.9 kernel we did use tps, pmic > now we have only gpio regulator so this is the difference. okay, if it's only a regulator how can you set different voltages ? Seems like you won't be able to do anything more than enable/disable a voltage rail. -- balbi [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 818 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 15:07 ` Felipe Balbi @ 2015-10-06 16:10 ` Felipe Balbi 2015-10-06 18:57 ` Belisko Marek 1 sibling, 0 replies; 7+ messages in thread From: Felipe Balbi @ 2015-10-06 16:10 UTC (permalink / raw) To: Belisko Marek Cc: Tony Lindgren, Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list [-- Attachment #1: Type: text/plain, Size: 1918 bytes --] Felipe Balbi <balbi@ti.com> writes: > Belisko Marek <marek.belisko@gmail.com> writes: > >> Hi, >> >> On Tue, Oct 6, 2015 at 4:03 PM, Belisko Marek <marek.belisko@gmail.com> wrote: >>> Hi Felipe, >>> >>> On Tue, Oct 6, 2015 at 4:00 PM, Felipe Balbi <balbi@ti.com> wrote: >>>> >>>> Hi, >>>> >>>> Belisko Marek <marek.belisko@gmail.com> writes: >>>>> Hi Tony, >>>>> >>>>> I'm using custom am33xx board where mpu voltage can be changed through >>>>> gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator >>>>> node and also operating-points to DT. Gpio regulator seems to be >>>>> working fine but during probing cpufreq-dt I get error: >>>>> failed to init cpufreq table: -61 >>>>> >>>>> I did small investigation and seem that dev_pm_opp_init_cpufreq_table >>>>> fails at first condition dev_pm_opp_get_opp_count <= 0 and this is >>>>> because opp_list is empty. So it seems that any opp for am33xx aren't >>>>> defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data >>>>> but there is nothing am33xx specific. It is known problem or exist >>>>> some patches around to fix that? Many thanks. >>>> >>>> OPP initialization is not in mainline yet, there are some out-of-tree >>>> patches which TI has been working on. If you want to use them, have a >>>> look at TI's vendor kernel at [1] >>> Thanks for link. One thing which is still not puzzled before I use 3.9 >>> kernel and it was working fine >>> it's stops working when bumped to 4.1. >> >> Sorry information was incorrect. On 3.9 kernel we did use tps, pmic >> now we have only gpio regulator so this is the difference. > > okay, if it's only a regulator how can you set different voltages ? ^^^^^^^^^ GPIO, rather > Seems like you won't be able to do anything more than enable/disable a > voltage rail. > > -- > balbi -- balbi [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 818 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: cpufreq-dt error: failed to init cpufreq table: -61 2015-10-06 15:07 ` Felipe Balbi 2015-10-06 16:10 ` Felipe Balbi @ 2015-10-06 18:57 ` Belisko Marek 1 sibling, 0 replies; 7+ messages in thread From: Belisko Marek @ 2015-10-06 18:57 UTC (permalink / raw) To: Felipe Balbi Cc: Tony Lindgren, Viresh Kumar, linux-omap@vger.kernel.org, Linux PM mailing list On Tue, Oct 6, 2015 at 5:07 PM, Felipe Balbi <balbi@ti.com> wrote: > Belisko Marek <marek.belisko@gmail.com> writes: > >> Hi, >> >> On Tue, Oct 6, 2015 at 4:03 PM, Belisko Marek <marek.belisko@gmail.com> wrote: >>> Hi Felipe, >>> >>> On Tue, Oct 6, 2015 at 4:00 PM, Felipe Balbi <balbi@ti.com> wrote: >>>> >>>> Hi, >>>> >>>> Belisko Marek <marek.belisko@gmail.com> writes: >>>>> Hi Tony, >>>>> >>>>> I'm using custom am33xx board where mpu voltage can be changed through >>>>> gpio regulator on 4.1 (latest stable) kernel. I defined gpio-regulator >>>>> node and also operating-points to DT. Gpio regulator seems to be >>>>> working fine but during probing cpufreq-dt I get error: >>>>> failed to init cpufreq table: -61 >>>>> >>>>> I did small investigation and seem that dev_pm_opp_init_cpufreq_table >>>>> fails at first condition dev_pm_opp_get_opp_count <= 0 and this is >>>>> because opp_list is empty. So it seems that any opp for am33xx aren't >>>>> defined if I'm getting it right. I did look to mach-omap2/opp3xxx_data >>>>> but there is nothing am33xx specific. It is known problem or exist >>>>> some patches around to fix that? Many thanks. >>>> >>>> OPP initialization is not in mainline yet, there are some out-of-tree >>>> patches which TI has been working on. If you want to use them, have a >>>> look at TI's vendor kernel at [1] >>> Thanks for link. One thing which is still not puzzled before I use 3.9 >>> kernel and it was working fine >>> it's stops working when bumped to 4.1. >> >> Sorry information was incorrect. On 3.9 kernel we did use tps, pmic >> now we have only gpio regulator so this is the difference. > > okay, if it's only a regulator how can you set different voltages ? > Seems like you won't be able to do anything more than enable/disable a > voltage rail. Sorry I wasn't precise. There are 2 gpios's with some small logic so we have 4 voltage states. > > -- > balbi BR, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-10-06 18:57 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2015-10-06 13:25 cpufreq-dt error: failed to init cpufreq table: -61 Belisko Marek 2015-10-06 14:00 ` Felipe Balbi 2015-10-06 14:03 ` Belisko Marek 2015-10-06 14:16 ` Belisko Marek 2015-10-06 15:07 ` Felipe Balbi 2015-10-06 16:10 ` Felipe Balbi 2015-10-06 18:57 ` Belisko Marek
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