From: Mark Brown <broonie@kernel.org> To: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Lee Jones <lee.jones@linaro.org>, Samuel Ortiz <sameo@linux.intel.com>, Mike Turquette <mturquette@linaro.org>, Liam Girdwood <lgirdwood@gmail.com>, Alessandro Zummo <a.zummo@towertech.it>, Kukjin Kim <kgene.kim@samsung.com>, Doug Anderson <dianders@chromium.org>, Olof Johansson <olof@lixom.net>, Sjoerd Simons <sjoerd.simons@collabora.co.uk>, Daniel Stone <daniels@collabora.com>, Tomeu Vizoso <tomeu.vizoso@collabora.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 07/10] regulator: Add driver for Maxim 77802 PMIC regulators Date: Tue, 17 Jun 2014 15:12:54 +0100 [thread overview] Message-ID: <20140617141254.GP5099@sirena.org.uk> (raw) In-Reply-To: <53A01D54.10506@collabora.co.uk> [-- Attachment #1: Type: text/plain, Size: 962 bytes --] On Tue, Jun 17, 2014 at 12:49:56PM +0200, Javier Martinez Canillas wrote: > On 06/16/2014 09:25 PM, Mark Brown wrote: > >> + config.dev = &pdev->dev; > > Are you sure this shouldn't be the MFD? > I just looked at regulator_register() and saw that it does rdev->dev.parent = > dev, so yes this has to be the MFD. Do the regulators manage to get their supplies? > So, for now I thought it made sense to set the operating mode to normal on > probe() but I'll change it to read from the hardware if that is better. Yes, otherwise if the device is configured otherwise then when we change the configuration we may break something. > I guess I should check in the datasheet if a sane default operating mode for > LDOs is expected when the chip is reseted or if this is left undefined and also > if the bootloader already set this. You can't do anything based on the particular bootloader you're using in your current system, this has to work in other systems. [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 819 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: broonie@kernel.org (Mark Brown) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 07/10] regulator: Add driver for Maxim 77802 PMIC regulators Date: Tue, 17 Jun 2014 15:12:54 +0100 [thread overview] Message-ID: <20140617141254.GP5099@sirena.org.uk> (raw) In-Reply-To: <53A01D54.10506@collabora.co.uk> On Tue, Jun 17, 2014 at 12:49:56PM +0200, Javier Martinez Canillas wrote: > On 06/16/2014 09:25 PM, Mark Brown wrote: > >> + config.dev = &pdev->dev; > > Are you sure this shouldn't be the MFD? > I just looked at regulator_register() and saw that it does rdev->dev.parent = > dev, so yes this has to be the MFD. Do the regulators manage to get their supplies? > So, for now I thought it made sense to set the operating mode to normal on > probe() but I'll change it to read from the hardware if that is better. Yes, otherwise if the device is configured otherwise then when we change the configuration we may break something. > I guess I should check in the datasheet if a sane default operating mode for > LDOs is expected when the chip is reseted or if this is left undefined and also > if the bootloader already set this. You can't do anything based on the particular bootloader you're using in your current system, this has to work in other systems. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20140617/62f9e425/attachment-0001.sig>
next prev parent reply other threads:[~2014-06-17 14:13 UTC|newest] Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-06-16 18:02 [PATCH v2 00/10] Add Maxim 77802 PMIC support Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 01/10] mfd: max77686: Convert to use regmap_irq Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-17 20:32 ` Lee Jones 2014-06-17 20:32 ` Lee Jones 2014-06-17 20:57 ` Doug Anderson 2014-06-17 20:57 ` Doug Anderson 2014-06-17 20:57 ` Doug Anderson 2014-06-18 9:21 ` Javier Martinez Canillas 2014-06-18 9:21 ` Javier Martinez Canillas 2014-06-18 9:21 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 02/10] clk: max77686: add DT include for MAX77686 PMIC clock Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 03/10] Documentation: dt: improve Maxim 77686 PMIC clocks binding Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 04/10] clk: Add generic driver for Maxim PMIC clocks Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 05/10] clk: max77686: convert to the generic max clock driver Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 06/10] mfd: Add driver for Maxim 77802 Power Management IC Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 19:27 ` Mark Brown 2014-06-16 19:27 ` Mark Brown 2014-06-17 10:57 ` Javier Martinez Canillas 2014-06-17 10:57 ` Javier Martinez Canillas 2014-06-18 8:32 ` Lee Jones 2014-06-18 8:32 ` Lee Jones 2014-06-18 9:50 ` Javier Martinez Canillas 2014-06-18 9:50 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 07/10] regulator: Add driver for Maxim 77802 PMIC regulators Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 19:25 ` Mark Brown 2014-06-16 19:25 ` Mark Brown 2014-06-17 10:49 ` Javier Martinez Canillas 2014-06-17 10:49 ` Javier Martinez Canillas 2014-06-17 10:49 ` Javier Martinez Canillas 2014-06-17 14:12 ` Mark Brown [this message] 2014-06-17 14:12 ` Mark Brown 2014-06-17 16:05 ` Javier Martinez Canillas 2014-06-17 16:05 ` Javier Martinez Canillas 2014-06-21 20:40 ` Mark Brown 2014-06-21 20:40 ` Mark Brown 2014-06-23 9:28 ` Javier Martinez Canillas 2014-06-23 9:28 ` Javier Martinez Canillas 2014-06-23 9:47 ` Mark Brown 2014-06-23 9:47 ` Mark Brown 2014-06-23 9:47 ` Mark Brown 2014-06-24 16:43 ` Javier Martinez Canillas 2014-06-24 16:43 ` Javier Martinez Canillas 2014-06-17 21:17 ` Lee Jones 2014-06-17 21:17 ` Lee Jones 2014-06-17 21:17 ` Lee Jones 2014-06-18 9:47 ` Javier Martinez Canillas 2014-06-18 9:47 ` Javier Martinez Canillas 2014-06-18 14:10 ` Lee Jones 2014-06-18 14:10 ` Lee Jones 2014-06-19 13:32 ` Alessandro Zummo 2014-06-19 13:32 ` Alessandro Zummo 2014-06-16 18:02 ` [PATCH v2 08/10] clk: Add driver for Maxim 77802 PMIC clocks Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 09/10] rtc: Add driver for Maxim 77802 PMIC Real-Time-Clock Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas 2014-06-16 18:02 ` [PATCH v2 10/10] ARM: dts: Add max77802 device node for exynos5420-peach-pit Javier Martinez Canillas 2014-06-16 18:02 ` Javier Martinez Canillas
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