linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2018-06-28	dt-bindings: pinctrl: qcom: add gpio-ranges, gpio-reserved-ranges	Christian Lamparter	1	-0/+6
	This patch adds the gpio-ranges and gpio-reserved-ranges property definitions to the binding text files supported by the pinctrl-msm driver framework. gpio-ranges: For DT-based platforms the pinctrl-msm framework currently relies on the deprecated-for-DT gpiochip_add_pin_range() function to add the range of GPIOs to be handled by the pin controller. Due to interactions within gpiolib code, this causes the pinctrl-msm driver to bail out (-517) during boot when a gpio-hog is declared. This can be fatal and cause the system to not boot or reset (for a detailed explanation and call-trace, refer to patch: "pinctrl: msm: fix gpio-hog related boot issues" in this series). gpio-reserved-ranges: The binding has been added as a precaution since the TrustZone firmware (aka QSEE), which is running as the hypervisor, might have reserved certain, but undisclosed pins. Hence reading or writing to the registers for those pins will cause an XPU violation and this subsequently crashes the kernel. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29	pinctrl: qcom: msm8974: Add hsic_ctl pinmux	Stephen Boyd	1	-1/+4
	The msm8974 pinctrl variant has a couple USB HSIC "glue" registers that let us mux between the pinctrl register settings or the HSIC core settings for the HSIC pins (gpio 144 and gpio 145). Support this method of operation by adding hsic_data and hsic_strobe pins that can select between hsic_ctl and gpio functions. This allows us to toggle the hsic pin configuration over to the HSIC core at runtime. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-11-18	documentation: pinctrl bindings: Fix trivial typo 'abitrary'	Soren Brinkmann	1	-1/+1
	A misspelled 'arbitrary' propagated to quite a few locations in the DT binding documentation for pin-controllers. Fixing by: git grep abitrary \| cut -f1 -d: \| xargs sed -i 's/abitrary/arbitrary/' Reported-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Rob Herring <robh@kernel.org>
2014-07-22	pinctrl: qcom: Make muxing of gpio function explicit	Bjorn Andersson	1	-1/+1
	Instead of relying on pinmux->disable(), make the gpio function an explicit function for all pins that supports it. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-29	pinctrl: msm: Add more MSM8X74 pin definitions	Andy Gross	1	-1/+21
	This patch adds pin definitiones for the MSM8x74 TLMM. New definitions include: BLSP devices (I2C, UART, SPI, and UIM), mi2s, gp clk, pdm, gcc clk, cci_timer, cci_i2c, cam_clk, hsic, tsif, sdc3, sdc4, and other assorted pins. Signed-off-by: Andy Gross <agross@codeaurora.org> Acked-By: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-07	devicetree: bindings: Make msm8974-pinctrl documentation match code	Stephen Boyd	1	-7/+7
	The compatible string doesn't have an x in it. Fix it. Also remove the "qcom" prefix from pins and functions as this binding uses the generic pinctrl bindings for the pins and functions. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-16	pinctrl-msm: Rename compatible to be more specific	Bjorn Andersson	1	-0/+92
	Use the more specific form 8974 for the compatible to reduce the risk of future mishaps. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>