From: Tony Lindgren <tony@atomide.com>
To: Tero Kristo <t-kristo@ti.com>
Cc: Nishanth Menon <nm@ti.com>, Dave Gerlach <d-gerlach@ti.com>,
Keerthy <j-keerthy@ti.com>,
linux-kernel@vger.kernel.org,
Peter Ujfalusi <peter.ujfalusi@ti.com>,
Faiz Abbas <faiz_abbas@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Roger Quadros <rogerq@ti.com>
Subject: Re: [PATCH 5/8] ARM: dts: Drop bogus ahclkr clocks for dra7 mcasp 3 to 8
Date: Wed, 18 Sep 2019 08:51:08 -0700 [thread overview]
Message-ID: <20190918155108.GD5610@atomide.com> (raw)
In-Reply-To: <931eb0e1-8024-3003-1fb3-6f6ad8b74bf9@ti.com>
* Tero Kristo <t-kristo@ti.com> [190917 07:22]:
> On 24/07/2019 09:47, Tony Lindgren wrote:
> > * Suman Anna <s-anna@ti.com> [190723 21:02]:
> > > Hi Tony,
> > >
> > > On 7/23/19 6:28 AM, Tony Lindgren wrote:
> > > > The ahclkr clkctrl clock bit 28 only exists for mcasp 1 and 2 on dra7.
> > > > Otherwise we get the following warning on beagle-x15:
> > ...
> > > > @@ -2962,9 +2958,8 @@
> > > > <SYSC_IDLE_SMART>;
> > > > /* Domains (P, C): l4per_pwrdm, l4per2_clkdm */
> > > > clocks = <&l4per2_clkctrl DRA7_L4PER2_MCASP7_CLKCTRL 0>,
> > > > - <&l4per2_clkctrl DRA7_L4PER2_MCASP7_CLKCTRL 24>,
> > > > - <&l4per2_clkctrl DRA7_L4PER2_MCASP7_CLKCTRL 28>;
> > > > - clock-names = "fck", "ahclkx", "ahclkr";
> > > > + <&l4per2_clkctrl DRA7_L4PER2_MCASP7_CLKCTRL 24>;
> > > > + clock-names = "fck", "ahclkx";
> > >
> > > The equivalent change to MCASP8 is missing.
> >
> > Thanks for spotting it, probably should be set up the same way as
> > MCASP4 too looking at the TRM.
> >
> > Tero, care to check the dra7 mcasp clocks we have defined?
>
> Sorry, missed this earlier.
>
> >
> > $ grep MCASP drivers/clk/ti/clk-7xx.c
> > { DRA7_IPU_MCASP1_CLKCTRL, dra7_mcasp1_bit_data, CLKF_SW_SUP, "ipu-clkctrl:0000:22" },
> > { DRA7_L4PER2_MCASP2_CLKCTRL, dra7_mcasp2_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:0154:22" },
> > { DRA7_L4PER2_MCASP3_CLKCTRL, dra7_mcasp3_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:015c:22" },
> > { DRA7_L4PER2_MCASP5_CLKCTRL, dra7_mcasp5_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:016c:22" },
> > { DRA7_L4PER2_MCASP8_CLKCTRL, dra7_mcasp8_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:0184:24" },
> > { DRA7_L4PER2_MCASP4_CLKCTRL, dra7_mcasp4_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:018c:22" },
> > { DRA7_L4PER2_MCASP6_CLKCTRL, dra7_mcasp6_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:01f8:22" },
> > { DRA7_L4PER2_MCASP7_CLKCTRL, dra7_mcasp7_bit_data, CLKF_SW_SUP, "l4per2-clkctrl:01fc:22" },
> >
> > Is bit 24 above correct for MCASP8 or should it too be 22 like
> > adjacent MCASP4 in the TRM?
>
> So yeah, mcasp8 is wrong here, should be 22 as rest of them. I did fix
> mcasp8 clocks partially when doing the conversion but missed the parenting
> here; it was completely broken before.
OK thanks, I'll post a patch to fix that and an updated mcasp dts fix.
Regards,
Tony
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next prev parent reply other threads:[~2019-09-18 15:51 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-23 11:28 [PATCH 0/8] ti-sysc related warning fixes for v5.3-rc cycle Tony Lindgren
2019-07-23 11:28 ` [PATCH 1/8] ARM: OMAP2+: Fix missing SYSC_HAS_RESET_STATUS for dra7 epwmss Tony Lindgren
2019-07-23 18:16 ` Suman Anna
2019-07-23 11:28 ` [PATCH 2/8] ARM: OMAP2+: Remove unconfigured midlemode for am3 lcdc Tony Lindgren
2019-07-23 19:03 ` Suman Anna
2019-07-24 5:50 ` Keerthy
2019-07-24 6:31 ` Tony Lindgren
2019-07-24 18:28 ` Suman Anna
2019-08-13 10:47 ` Tony Lindgren
2019-08-13 11:04 ` Jyri Sarha
2019-08-13 11:29 ` Tony Lindgren
2019-07-23 11:28 ` [PATCH 3/8] bus: ti-sysc: Fix handling of forced idle Tony Lindgren
2019-07-23 18:31 ` Suman Anna
2019-07-23 11:28 ` [PATCH 4/8] bus: ti-sysc: Fix using configured sysc mask value Tony Lindgren
2019-07-23 11:28 ` [PATCH 5/8] ARM: dts: Drop bogus ahclkr clocks for dra7 mcasp 3 to 8 Tony Lindgren
2019-07-23 21:01 ` Suman Anna
2019-07-24 6:47 ` Tony Lindgren
2019-09-17 7:21 ` Tero Kristo
2019-09-18 15:51 ` Tony Lindgren [this message]
2019-07-23 11:28 ` [PATCH 6/8] ARM: dts: Fix flags for gpio7 Tony Lindgren
2019-07-23 21:58 ` Suman Anna
2019-07-23 11:28 ` [PATCH 7/8] ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7 Tony Lindgren
2019-07-23 11:28 ` [PATCH 8/8] ARM: dts: Fix lcdc sysc flags for am3 Tony Lindgren
2019-07-24 5:52 ` [PATCH 0/8] ti-sysc related warning fixes for v5.3-rc cycle Keerthy
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