From mboxrd@z Thu Jan 1 00:00:00 1970 From: linus.walleij@linaro.org (Linus Walleij) Date: Mon, 1 Sep 2014 10:27:22 +0200 Subject: [PATCH v2 1/3] pinctrl: at91: add drive strength configuration In-Reply-To: <1408849926-9603-1-git-send-email-mark.roszko@gmail.com> References: <1408849926-9603-1-git-send-email-mark.roszko@gmail.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, Aug 24, 2014 at 5:12 AM, Marek Roszko wrote: > The SAMA5 and SAM9x5 series both have drive strength options for the PIOs. This > patch adds the ability to set one of three hardware options for drive strengths of low, > medium or high for the each pin. The actual current output of the chip based on the setting > is defined in the datasheets and varies per pins separate from banks and with supply voltage. > > This patch adds three new dt-bindings that allow setting the strength when configuring > pins. By default, no change will be made to the drive strength of a pin from its reset value. > Due to the difference between the register addresses of the SAMA5 and SAM9x5 series, a new > sama5d3-pinctrl id was added. > > Signed-off-by: Marek Roszko Waiting for feedback from AT91 maintainers... Yours, Linus Walleij