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authorChi Zhang <chizhang@asrmicro.com>2025-08-07 14:20:38 +0800
committerLinus Walleij <linus.walleij@linaro.org>2025-08-18 17:25:05 +0200
commit236152dd9b1675a35eee912e79e6c57ca6b6732f (patch)
tree2089e74b5210b2d1c9113dd20f8d0940e80d36b7 /rust/helpers/build_bug.c
parent694a97ee25581630f70773d160fcc2364afe98c8 (diff)
pinctrl: single: fix bias pull up/down handling in pin_config_set
In the pin_config_set function, when handling PIN_CONFIG_BIAS_PULL_DOWN or PIN_CONFIG_BIAS_PULL_UP, the function calls pcs_pinconf_clear_bias() which writes the register. However, the subsequent operations continue using the stale 'data' value from before the register write, effectively causing the bias clear operation to be overwritten and not take effect. Fix this by reading the 'data' value from the register after calling pcs_pinconf_clear_bias(). This bug seems to have existed when this code was first merged in commit 9dddb4df90d1 ("pinctrl: single: support generic pinconf"). Signed-off-by: Chi Zhang <chizhang@asrmicro.com> Link: https://lore.kernel.org/20250807062038.13610-1-chizhang@asrmicro.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'rust/helpers/build_bug.c')
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