From: Laxman Dewangan <ldewangan@nvidia.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: "broonie@kernel.org" <broonie@kernel.org>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
"rob@landley.net" <rob@landley.net>,
"lgirdwood@gmail.com" <lgirdwood@gmail.com>,
Stephen Warren <swarren@nvidia.com>,
"gg@slimlogic.co.uk" <gg@slimlogic.co.uk>,
"sameo@linux.intel.com" <sameo@linux.intel.com>,
"ian@slimlogic.co.uk" <ian@slimlogic.co.uk>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] regulator: palmas: model SMPS10 as two regulators
Date: Thu, 20 Jun 2013 16:22:27 +0530 [thread overview]
Message-ID: <51C2DEEB.9090600@nvidia.com> (raw)
In-Reply-To: <1371717458-10307-3-git-send-email-kishon@ti.com>
On Thursday 20 June 2013 02:07 PM, Kishon Vijay Abraham I wrote:
> SMPS10 has two outputs OUT1 and OUT2 and have one input IN1.
> SMPS10-OUT2 is connected to SMPS10-IN1 and can be configured either
> in BOOST mode or BYPASS mode. regulator_enable of SMPS10-OUT2 configures
> it in BOOST mode. For BYPASS mode regulator_allow_bypass() API can be
> used. SMPS10-OUT1 is connected to SMPS10-OUT2 and can be enabled using
> regulator_enable().
>
> Cc: Laxman Dewangan <ldewangan@nvidia.com>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> drivers/regulator/palmas-regulator.c | 39 ++++++++++++++++++++++++++++++----
> include/linux/mfd/palmas.h | 9 ++++----
> 2 files changed, 40 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
> index 3ae44ac..7004bab 100644
> --- a/drivers/regulator/palmas-regulator.c
> +++ b/drivers/regulator/palmas-regulator.c
> @@ -97,7 +97,12 @@ static const struct regs_info palmas_regs_info[] = {
> .ctrl_addr = PALMAS_SMPS9_CTRL,
> },
> {
> - .name = "SMPS10",
> + .name = "SMPS10_OUT1",
> + .sname = "smps10-out2",
> + .ctrl_addr = PALMAS_SMPS10_CTRL,
> + },
> + {
> + .name = "SMPS10_OUT2",
> .sname = "smps10-in",
>
This sequence can create regulator to be never register.
In probe, we register regulator from 0 to max_id.
Here smps10-out1 comes first and see the supply as smps10-out2 which is
not registered yet and so will fail with PROBE_DEFER
When again it tries, the same issue.
I think we need to reverse the sequence, SMPS10-OUT2 and then SMPS10-OUT1.
next prev parent reply other threads:[~2013-06-20 10:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 8:37 [PATCH 0/2] Model SMPS10 regulator Kishon Vijay Abraham I
2013-06-20 8:37 ` [PATCH 1/2] regulator: of: Added a property to indicate bypass mode support Kishon Vijay Abraham I
2013-06-20 11:20 ` Mark Brown
2013-06-20 8:37 ` [PATCH 2/2] regulator: palmas: model SMPS10 as two regulators Kishon Vijay Abraham I
2013-06-20 10:52 ` Laxman Dewangan [this message]
2013-06-20 13:50 ` Kishon Vijay Abraham I
2013-06-20 14:03 ` Laxman Dewangan
2013-06-20 14:19 ` Kishon Vijay Abraham I
2013-06-20 14:44 ` Laxman Dewangan
2013-06-20 15:26 ` Kishon Vijay Abraham I
2013-06-21 13:25 ` Laxman Dewangan
2013-06-21 14:00 ` Kishon Vijay Abraham I
2013-06-22 13:12 ` Laxman Dewangan
2013-06-24 5:23 ` Kishon Vijay Abraham I
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