From: Laxman Dewangan <ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> To: linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org, gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, Laxman Dewangan <ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Subject: [PATCH V3 0/2] pinctrl: tegra: Add support for IO pad control Date: Tue, 22 Nov 2016 15:50:11 +0530 [thread overview] Message-ID: <1479810013-29894-1-git-send-email-ldewangan@nvidia.com> (raw) NVIDIA Tegra124 and later SoCs support the multi-voltage level and low power state of some of its IO pads. The IO pads can work in the voltage of the 1.8V and 3.3V of IO power rail sources. When IO interface are not used then IO pads can be configure in low power state to reduce the power from that IO pads. This series add the support of configuration of IO pad via pinctrl framework. The io pad driver uses the tegra PMC interface. --- This driver was sent earlier for review along with soc/tegra pmc changes. During review, decided to first conclude in soc/tegra pmc patches and then review this. Thierry applied the pmc patches in the private tree https://github.com/thierryreding/linux/tree/tegra186 and he wanted to have the patches for user of the new APIs so that it can be pushed to mainline. Sending the pinctrl driver. This needs Ack/reviewed from pinctrl subsystem i.e. Linus Welleij to apply in the Thierry's T186 branch along with PMC patches. --- Changes from V1: - use the regulator framework to get the IO voltage instead of table from DT. The regulator handle is provided from DT. Changes from V2: - Nit fixes and variable/allocation optimisation as per review comment from V2. Laxman Dewangan (2): pinctrl: tegra: Add DT binding for io pads control pinctrl: tegra: Add driver to configure voltage and power of io pads .../bindings/pinctrl/nvidia,tegra-io-pad.txt | 126 +++++ drivers/pinctrl/tegra/Kconfig | 12 + drivers/pinctrl/tegra/Makefile | 1 + drivers/pinctrl/tegra/pinctrl-tegra-io-pad.c | 530 +++++++++++++++++++++ 4 files changed, 669 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/nvidia,tegra-io-pad.txt create mode 100644 drivers/pinctrl/tegra/pinctrl-tegra-io-pad.c -- 2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: Laxman Dewangan <ldewangan@nvidia.com> To: <linus.walleij@linaro.org>, <robh+dt@kernel.org>, <swarren@wwwdotorg.org>, <thierry.reding@gmail.com> Cc: <mark.rutland@arm.com>, <gnurou@gmail.com>, <linux-gpio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <joe@perches.com>, <jonathanh@nvidia.com>, Laxman Dewangan <ldewangan@nvidia.com> Subject: [PATCH V3 0/2] pinctrl: tegra: Add support for IO pad control Date: Tue, 22 Nov 2016 15:50:11 +0530 [thread overview] Message-ID: <1479810013-29894-1-git-send-email-ldewangan@nvidia.com> (raw) NVIDIA Tegra124 and later SoCs support the multi-voltage level and low power state of some of its IO pads. The IO pads can work in the voltage of the 1.8V and 3.3V of IO power rail sources. When IO interface are not used then IO pads can be configure in low power state to reduce the power from that IO pads. This series add the support of configuration of IO pad via pinctrl framework. The io pad driver uses the tegra PMC interface. --- This driver was sent earlier for review along with soc/tegra pmc changes. During review, decided to first conclude in soc/tegra pmc patches and then review this. Thierry applied the pmc patches in the private tree https://github.com/thierryreding/linux/tree/tegra186 and he wanted to have the patches for user of the new APIs so that it can be pushed to mainline. Sending the pinctrl driver. This needs Ack/reviewed from pinctrl subsystem i.e. Linus Welleij to apply in the Thierry's T186 branch along with PMC patches. --- Changes from V1: - use the regulator framework to get the IO voltage instead of table from DT. The regulator handle is provided from DT. Changes from V2: - Nit fixes and variable/allocation optimisation as per review comment from V2. Laxman Dewangan (2): pinctrl: tegra: Add DT binding for io pads control pinctrl: tegra: Add driver to configure voltage and power of io pads .../bindings/pinctrl/nvidia,tegra-io-pad.txt | 126 +++++ drivers/pinctrl/tegra/Kconfig | 12 + drivers/pinctrl/tegra/Makefile | 1 + drivers/pinctrl/tegra/pinctrl-tegra-io-pad.c | 530 +++++++++++++++++++++ 4 files changed, 669 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/nvidia,tegra-io-pad.txt create mode 100644 drivers/pinctrl/tegra/pinctrl-tegra-io-pad.c -- 2.1.4
next reply other threads:[~2016-11-22 10:20 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-22 10:20 Laxman Dewangan [this message] 2016-11-22 10:20 ` [PATCH V3 0/2] pinctrl: tegra: Add support for IO pad control Laxman Dewangan 2016-11-22 10:20 ` [PATCH V3 1/2] pinctrl: tegra: Add DT binding for io pads control Laxman Dewangan 2016-11-22 10:20 ` Laxman Dewangan [not found] ` <1479810013-29894-1-git-send-email-ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> 2016-11-22 10:20 ` [PATCH V3 2/2] pinctrl: tegra: Add driver to configure voltage and power of io pads Laxman Dewangan 2016-11-22 10:20 ` Laxman Dewangan 2016-11-22 12:58 ` Linus Walleij [not found] ` <CACRpkdZK34QfbSBJvshfZekk5TJBU5sZog-9uszLSmFPOGJgiw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2016-11-23 11:42 ` Laxman Dewangan 2016-11-23 11:42 ` Laxman Dewangan 2016-11-24 14:11 ` Linus Walleij 2016-11-24 14:19 ` Laxman Dewangan
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