Messages in this thread | | | From | "Philip, Avinash" <> | Subject | RE: [PATCH 2/3] ARM: davinci: da850: Enable EHRPWM TBCLK from CFG_CHIP1 | Date | Fri, 15 Mar 2013 05:21:07 +0000 |
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On Fri, Mar 15, 2013 at 10:38:58, Nori, Sekhar wrote: > On 3/15/2013 10:27 AM, Philip, Avinash wrote: > > On Thu, Mar 14, 2013 at 18:31:52, Nori, Sekhar wrote: > >> On 3/14/2013 4:07 PM, Philip Avinash wrote: > >>> da850 platforms require TBCLK synchronization in CFG_CHIP1 register for > >>> TBCLK enable in EHRPWM modules. Enabling of TBCLK is done only if EHRPWM > >>> DT node status is set to "okay" DT blob. > >>> Also adds macro definitions for DA8XX_EHRPWM_TBCLKSYNC and > >>> DA8XX_CFGCHIP1_REG. > >> > >> So there is actually a TBCLK in DA850 - it's just not modeled as a clock > >> similar to the way it is done on AM335x? If yes, then instead of adding > >> a dummy clock node and doing the TBCLK enable as part of init, why not > >> model TBCLK in clock tree even on DA850? > > > > > > TBCLK enabling should done from platform specific way. In DA850 it is done at > > CFGCHIP1 register. Unfortunately Davinci clock frame work will support only > > clock nodes inside PLLC and PSC modules. Handling of CFGCHP1 require > > That's true at the moment, but that can be fixed.
I will check.
> > > modifications in clock frame work. > > > > Hence handling it as part of initialization. > > I am curious as to how this clock is handled in am335x. I searched for > tbclk in arch/arm/ of linux-next but could not find any references. > Where should I be looking?
Patch is submitted. This patch is not in Paul's tree.
[PATCH v2] ARM: AM33XX: clk: Add clock node for EHRPWM TBCLK https://patchwork.kernel.org/patch/2127581/
Paul, Can you accept the above patch.
Thanks Avinash
> > Thanks, > Sekhar >
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