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Fix the below kernel-doc warning by adding the description for return
value.
"warning: No description found for return value of
'zynqmp_pmux_get_function_groups'".
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1655462819-28801-5-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add support to handle 'output-enable' and 'bias-high-impedance'
configurations. As part of the output-enable configuration, ZynqMP pinctrl
driver takes care of removing the pins from tri-state.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1655462819-28801-4-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This reverts commit 54784ff24971ed5bd3f1056edce998148709d0a7.
This patch changes the pin names from "MIO%d" to "MIO-%d", but all dts
in arch/arm64/boot/dts/xilinx still use the old name. As a result my
ZCU104 has no output on serial terminal and is not reachable over
network.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Since we have devm_kasprintf_strarray() helper, which is used in
the rest of pin control drivers, it makes sense to switch this
driver to it. The pin names are not part of any ABI and hence
there will be no regression based on that. Otherwise all generated
pin names will follow the same schema in the pin control subsystem.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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It's not necessary to unregister pin controller device registered
with devm_pinctrl_register() and using pinctrl_unregister() leads
to a double free.
Fixes: fa99e7013827 ("pinctrl: zynqmp: some code cleanups")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/20210729071905.3235953-1-yangyingliang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Some minor code cleanups and updates which includes
- Mention module name under help in Kconfig.
- Remove extra lines and duplicate Pin range checks.
- Replace 'return ret' with 'return 0' in success path.
- Copyright year update.
- use devm_pinctrl_register() instead pinctrl_register() in probe.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1624273214-66849-1-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Adding pinctrl driver for Xilinx ZynqMP platform.
This driver queries pin information from firmware and registers
pin control accordingly.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1619080202-31924-4-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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