From: Rajendra Nayak <rnayak@ti.com> To: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: grant.likely@secretlab.ca, devicetree-discuss@lists.ozlabs.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tony@atomide.com, lrg@ti.com, b-cousson@ti.com, patches@linaro.org Subject: Re: [PATCH 2/9] regulator: helper routine to extract regulator_init_data Date: Tue, 27 Sep 2011 20:18:04 +0530 [thread overview] Message-ID: <4E81E224.2070408@ti.com> (raw) In-Reply-To: <20110927121003.GB4289@opensource.wolfsonmicro.com> On Tuesday 27 September 2011 05:40 PM, Mark Brown wrote: > On Tue, Sep 27, 2011 at 03:42:45PM +0530, Rajendra Nayak wrote: > >> + init_data = devm_kzalloc(dev, sizeof(struct regulator_init_data), >> + GFP_KERNEL); >> + if (!init_data) >> + return NULL; /* Out of memory? */ > > This means that the init data will be kept around for the entire > lifetime of the device rather than being discarded. Wasn't it the same while this was passed around as platform_data? > >> + init_data->supply_regulator = (char *)of_get_property(dev->of_node, >> + "regulator-supplies", NULL); > > I'd expect that in the device tree world the supply regulator would > reference the node for that regulator. You mean using phandles? Thats what Grant proposed too but I thought you instead had an inclination towards names? Or maybe I misunderstood. > >> /* voltage output range (inclusive) - for voltage control */ >> - int min_uV; >> - int max_uV; >> + u32 min_uV; >> + u32 max_uV; >> >> - int uV_offset; >> + u32 uV_offset; >> >> /* current output range (inclusive) - for current control */ >> - int min_uA; >> - int max_uA; >> + u32 min_uA; >> + u32 max_uA; > > Hrm, I think loosing the signs here is bad karma - negative voltages do > exist after all. Oops.. they do? didn't know about that.
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From: rnayak@ti.com (Rajendra Nayak) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/9] regulator: helper routine to extract regulator_init_data Date: Tue, 27 Sep 2011 20:18:04 +0530 [thread overview] Message-ID: <4E81E224.2070408@ti.com> (raw) In-Reply-To: <20110927121003.GB4289@opensource.wolfsonmicro.com> On Tuesday 27 September 2011 05:40 PM, Mark Brown wrote: > On Tue, Sep 27, 2011 at 03:42:45PM +0530, Rajendra Nayak wrote: > >> + init_data = devm_kzalloc(dev, sizeof(struct regulator_init_data), >> + GFP_KERNEL); >> + if (!init_data) >> + return NULL; /* Out of memory? */ > > This means that the init data will be kept around for the entire > lifetime of the device rather than being discarded. Wasn't it the same while this was passed around as platform_data? > >> + init_data->supply_regulator = (char *)of_get_property(dev->of_node, >> + "regulator-supplies", NULL); > > I'd expect that in the device tree world the supply regulator would > reference the node for that regulator. You mean using phandles? Thats what Grant proposed too but I thought you instead had an inclination towards names? Or maybe I misunderstood. > >> /* voltage output range (inclusive) - for voltage control */ >> - int min_uV; >> - int max_uV; >> + u32 min_uV; >> + u32 max_uV; >> >> - int uV_offset; >> + u32 uV_offset; >> >> /* current output range (inclusive) - for current control */ >> - int min_uA; >> - int max_uA; >> + u32 min_uA; >> + u32 max_uA; > > Hrm, I think loosing the signs here is bad karma - negative voltages do > exist after all. Oops.. they do? didn't know about that.
next prev parent reply other threads:[~2011-09-27 14:48 UTC|newest] Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-09-27 10:12 [PATCH 0/9] Device tree support for regulators Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 10:12 ` [PATCH 1/9] regulator: twl: Remove hardcoded board constraints from driver Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 11:37 ` Mark Brown 2011-09-27 11:37 ` Mark Brown 2011-09-27 14:47 ` Rajendra Nayak 2011-09-27 14:47 ` Rajendra Nayak 2011-09-27 10:12 ` [PATCH 2/9] regulator: helper routine to extract regulator_init_data Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 12:10 ` Mark Brown 2011-09-27 12:10 ` Mark Brown 2011-09-27 14:48 ` Rajendra Nayak [this message] 2011-09-27 14:48 ` Rajendra Nayak [not found] ` <4E81E224.2070408-l0cyMroinI0@public.gmane.org> 2011-09-27 15:05 ` Mark Brown 2011-09-27 15:05 ` Mark Brown 2011-09-28 8:06 ` Cousson, Benoit 2011-09-28 8:06 ` Cousson, Benoit 2011-09-30 4:27 ` Rajendra Nayak 2011-09-30 4:27 ` Rajendra Nayak 2011-09-30 7:58 ` Cousson, Benoit 2011-09-30 7:58 ` Cousson, Benoit 2011-09-30 10:49 ` Mark Brown 2011-09-30 10:49 ` Mark Brown 2011-09-30 10:28 ` Mark Brown 2011-09-30 10:28 ` Mark Brown 2011-09-30 10:48 ` Mark Brown 2011-09-30 10:48 ` Mark Brown 2011-09-30 11:09 ` Rajendra Nayak 2011-09-30 11:09 ` Rajendra Nayak 2011-09-30 11:35 ` Cousson, Benoit 2011-09-30 11:35 ` Cousson, Benoit 2011-09-30 12:18 ` Mark Brown 2011-09-30 12:18 ` Mark Brown 2011-10-04 5:28 ` Rajendra Nayak 2011-10-04 5:28 ` Rajendra Nayak 2011-10-04 10:18 ` Mark Brown 2011-10-04 10:18 ` Mark Brown 2011-10-04 11:40 ` Rajendra Nayak 2011-10-04 11:40 ` Rajendra Nayak 2011-10-04 11:51 ` Mark Brown 2011-10-04 11:51 ` Mark Brown 2011-10-04 12:02 ` Rajendra Nayak 2011-10-04 12:02 ` Rajendra Nayak 2011-10-04 12:11 ` Mark Brown 2011-10-04 12:11 ` Mark Brown 2011-10-04 12:40 ` Nayak, Rajendra 2011-10-04 12:40 ` Nayak, Rajendra [not found] ` <20110927121003.GB4289-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org> 2011-09-30 1:24 ` Grant Likely 2011-09-30 1:24 ` Grant Likely 2011-10-04 23:01 ` Russell King - ARM Linux 2011-10-04 23:01 ` Russell King - ARM Linux 2011-10-04 23:48 ` Grant Likely 2011-10-04 23:48 ` Grant Likely 2011-09-27 10:12 ` [PATCH 3/9] omap4: sdp: Pass regulator data from dt Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 10:12 ` [PATCH 4/9] regulator: twl: Make twl-regulator driver extract data from DT Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 12:14 ` Mark Brown 2011-09-27 12:14 ` Mark Brown 2011-09-27 14:48 ` Rajendra Nayak 2011-09-27 14:48 ` Rajendra Nayak 2011-09-27 10:12 ` [PATCH 5/9] regulator: helper routine to extract fixed_voltage_config Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 12:16 ` Mark Brown 2011-09-27 12:16 ` Mark Brown 2011-09-27 14:49 ` Rajendra Nayak 2011-09-27 14:49 ` Rajendra Nayak 2011-09-27 16:13 ` Mark Brown 2011-09-27 16:13 ` Mark Brown [not found] ` <1317118372-17052-6-git-send-email-rnayak-l0cyMroinI0@public.gmane.org> 2011-09-30 1:26 ` Grant Likely 2011-09-30 1:26 ` Grant Likely 2011-09-27 10:12 ` [PATCH 6/9] regulator: make fixed regulator driver extract data from dt Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-30 1:34 ` Grant Likely 2011-09-30 1:34 ` Grant Likely 2011-09-27 10:12 ` [PATCH 7/9] omap4: panda: Pass regulator data from DT Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 10:12 ` [PATCH 8/9] regulator: helper to extract regulator node based on supply name Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 12:21 ` Mark Brown 2011-09-27 12:21 ` Mark Brown 2011-09-27 14:49 ` Rajendra Nayak 2011-09-27 14:49 ` Rajendra Nayak 2011-09-27 18:59 ` Mark Brown 2011-09-27 18:59 ` Mark Brown 2011-09-28 8:09 ` Cousson, Benoit 2011-09-28 8:09 ` Cousson, Benoit 2011-09-28 8:18 ` Rajendra Nayak 2011-09-28 8:18 ` Rajendra Nayak 2011-09-28 12:26 ` Mark Brown 2011-09-28 12:26 ` Mark Brown 2011-09-30 9:34 ` Rajendra Nayak 2011-09-30 9:34 ` Rajendra Nayak 2011-09-30 10:35 ` Mark Brown 2011-09-30 10:35 ` Mark Brown 2011-10-04 17:00 ` Grant Likely 2011-10-04 17:00 ` Grant Likely 2011-09-28 10:56 ` Rajendra Nayak 2011-09-28 10:56 ` Rajendra Nayak 2011-09-30 1:36 ` Grant Likely 2011-09-30 1:36 ` Grant Likely 2011-09-27 10:12 ` [PATCH 9/9] regulator: map consumer regulator based on device tree Rajendra Nayak 2011-09-27 10:12 ` Rajendra Nayak 2011-09-27 12:23 ` Mark Brown 2011-09-27 12:23 ` Mark Brown 2011-09-27 14:49 ` Rajendra Nayak 2011-09-27 14:49 ` Rajendra Nayak [not found] ` <1317118372-17052-10-git-send-email-rnayak-l0cyMroinI0@public.gmane.org> 2011-09-30 1:38 ` Grant Likely 2011-09-30 1:38 ` Grant Likely 2011-09-30 9:29 ` Rajendra Nayak 2011-09-30 9:29 ` Rajendra Nayak 2011-09-30 1:39 ` [PATCH 0/9] Device tree support for regulators Grant Likely 2011-09-30 1:39 ` Grant Likely
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