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Some Qualcomm boards feature reserved ranges of pins which are protected
by firmware. Attempting to read or write any registers associated with
these pins results the board resetting.
Add support for parsing these ranges from devicetree and ensure that the
pinctrl and GPIO drivers don't try to interact with these pins.
Signed-off-by: Neil Armstrong <[email protected]>
Reviewed-by: Sumit Garg <[email protected]>
Link: https://lore.kernel.org/r/20250410-topic-sm8x50-pinctrl-reserved-ranges-v2-1-654488392b9a@linaro.org
Signed-off-by: Caleb Connolly <[email protected]>
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Presently, get_function_mux returns an unsigned int and cannot
differentiate between failure and correct function value. Change its
return type to int and check for failure in the caller.
Additionally, updated drivers/pinctrl/qcom/pinctrl-*.c to accommodate the
above return type change. Only compile test done.
Signed-off-by: Varadarajan Narayanan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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Use the previously introduced msm_special_pin_data to setup the special
pins configuration if the SoC driver have them specified.
Signed-off-by: Neil Armstrong <[email protected]>
Reviewed-by: Sumit Garg <[email protected]>
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Add support for bias-pull-down as an alternate of bias-pull-up.
Signed-off-by: Neil Armstrong <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Peter Robinson <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Add support for driving the GPIO pins as output low or high.
Signed-off-by: Sumit Garg <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
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This patch is the preparation for SM8150 support. This new SoC
depending on the particular pin can have different numbers for the
same function. For example "rgmii" function for GPIO4 has id=2 while
for GPIO59 it has id=1. So, to support this type of SoCs,
get_function_mux() callback needs to know for which pin the function
is requested.
Signed-off-by: Volodymyr Babchuk <[email protected]>
Reviewed-by: Caleb Connolly <[email protected]>
Reviewed-by: Sumit Garg <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
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Most platforms have a handful of "special" GPIOs, like the MMC
clock/data lanes, UFS reset, etc. These don't follow the usual naming
scheme of "gpioX" and also have unique capabilities and registers. We
can get away without supporting them all for now, but DT compatibility
is still an issue.
Add support for allowing these to be specified after the other pins, and
make all pinmux/pinconf calls for them nop.
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Sumit Garg <[email protected]>
Tested-by: Sumit Garg <[email protected]> #qcs404
Signed-off-by: Caleb Connolly <[email protected]>
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The pinctrl and GPIO drivers are currently heavily incompatible with
upstream. Most Qualcomm pinctrl blocks feature "tiles" of pins, each at
it's own address. Introduce support for these by allowing the soc driver
to specify per-pin register offsets similarly to the Linux driver.
Adjust the GPIO driver to handle these too, and finally enable support
for all pins with the same numbering as used in Linux.
Reviewed-by: Sumit Garg <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
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Move the Qualcomm pinctrl drivers out of mach-snapdragon and over to the
rest of the pinctrl drivers, adjust the drivers so that support for each
platform can be enabled/disabled individually and introduce platform
specific configuration options.
Reviewed-by: Sumit Garg <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
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