Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v3.11.1 2013-07-01T10:17:06+00:00 2013-07-01T10:17:06+00:00 Mark Brown broonie@linaro.org 2013-07-01T10:17:06+00:00 urn:sha1:59aedb6df1f80cf9da7762a65450f616455898bb 2013-07-01T10:17:06+00:00 Mark Brown broonie@linaro.org 2013-07-01T10:17:06+00:00 urn:sha1:c84130e7006cacf05e8691ed4d6e5796910dac03 2013-06-25T10:31:29+00:00 Jonghwa Lee jonghwa3.lee@samsung.com 2013-06-25T01:08:38+00:00 urn:sha1:80b022e29bfdffb6c9ac0a283bcad3e1030c4c7e This patch adds new regulator driver to support max77693 chip's regulators. max77693 has two linear voltage regulators and one current regulator which can be controlled through I2C bus. This driver also supports device tree. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org> 2013-06-07T16:52:35+00:00 Lee Jones lee.jones@linaro.org 2013-06-07T16:11:24+00:00 urn:sha1:1e1bb58da2ae080002578c35f80495dadda50940 This patch changes the order in which the AB8500 regulator drivers are registered and subsequently probed. It saves a lot of -EPROBE_DEFEER nonsense and bootlog noise, as some AB8500 core regulators depend on the external ones for supply voltage. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org> 2013-05-12T14:31:36+00:00 Andrii.Tseglytskyi andrii.tseglytskyi@ti.com 2013-05-02T17:20:10+00:00 urn:sha1:40b1936efebdb9c31d9ed6fe59055f71ea366509 Adaptive Body Biasing (ABB) modulates transistor bias voltages dynamically in order to optimize switching speed versus leakage. Texas Instruments' SmartReflex 2 technology provides support for this power management technique with Forward Body Biasing (FBB) and Reverse Body Biasing (RBB). These modulate the body voltage of transistor cells or blocks dynamically to gain performance and reduce leakage. TI's SmartReflex white paper[1] has further information for usage in conjunction with other power management techniques. The application of FBB/RBB technique is determined for each unique device in some process nodes, whereas, they are mandated on other process nodes. In a nutshell, ABB technique is implemented on TI SoC as an on-chip LDO which has ABB module controlling the bias voltage. However, the voltage is unique per device. These vary per SoC family and the manner in which these techniques are used may vary depending on the Operating Performance Point (OPP) voltage targeted. For example: OMAP3630/OMAP4430: certain OPPs mandate usage of FBB independent of devices. OMAP4460/OMAP4470: certain OPPs mandate usage of FBB, while others may optionally use FBB or optimization with RBB. OMAP5: ALL OPPs may optionally use ABB, and ABB biasing voltage is influenced by vset fused in s/w and requiring s/w override of default values. Further, two generations of ABB module are used in various TI SoCs. They have remained mostly register field compatible, however the register offset had switched between versions. We introduce ABB LDO support in the form of a regulator which is controlled by voltages denoting the desired Operating Performance Point which is targeted. However, since ABB transition is part of OPP change sequence, the sequencing required to ensure sane operation w.r.t OPP change is left to the controlling driver (example: cpufreq SoC driver) using standard regulator operations. The driver supports all ABB modes and ability to override ABB LDO vset control efuse based ABB mode detection etc. Current implementation is heavily influenced by the original patch series [2][3] from Mike Turquette. However, the current implementation supports only device tree based information. [1] http://www.ti.com/pdfs/wtbu/smartreflex_whitepaper.pdf [2] http://marc.info/?l=linux-omap&m=134931341818379&w=2 [3] http://marc.info/?l=linux-arm-kernel&m=134931402406853&w=2 [nm@ti.com: co-developer] Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Andrii.Tseglytskyi <andrii.tseglytskyi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 2013-03-29T17:49:07+00:00 Lee Jones lee.jones@linaro.org 2013-03-28T16:11:01+00:00 urn:sha1:d1a820011b2fbc11d5af80d1a961fe66c613fa4b The ABx500 is capable of controlling three external regulator supplies. Most commonly on and off are supported, but if an external regulator chipset or power supply supports high-power and low-power mode settings, we can control those too. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 2012-12-24T16:32:34+00:00 Daniel Jeong gshark.jeong@gmail.com 2012-12-17T01:24:06+00:00 urn:sha1:b59320cc5a5e6ceaa17f0895ffbe0711ebad7adf This patch is for new lp8755 regulator dirver and several unsed variables were deleted and then test was done. LP8755 : The LP8755 is a high performance power management unit.It contains six step-down DC-DC converters which can can be filexibly bundled together in multiphase converters as required by application. www.ti.com Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> 2012-12-10T03:42:59+00:00 Mark Brown broonie@opensource.wolfsonmicro.com 2012-12-10T03:42:59+00:00 urn:sha1:f675649e70a494aa13ae695480a3d51bf15dd3e2 2012-12-10T03:42:55+00:00 Mark Brown broonie@opensource.wolfsonmicro.com 2012-12-10T03:42:55+00:00 urn:sha1:1f9cc5f7716d664bfe32289ca61327be01a0a8e3 2012-12-10T03:42:53+00:00 Mark Brown broonie@opensource.wolfsonmicro.com 2012-12-10T03:42:53+00:00 urn:sha1:db58e0270ce36fbcee22147405e1917ce01880ae