6.6-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold johan+linaro@kernel.org
commit 8da86499d4cd125a9561f9cd1de7fba99b0aecbf upstream.
The SPMI GPIO driver assumes that the parent device is an SPMI device and accesses random data when backcasting the parent struct device pointer for non-SPMI devices.
Fortunately this does not seem to cause any issues currently when the parent device is an I2C client like the PM8008, but this could change if the structures are reorganised (e.g. using structure randomisation).
Notably the interrupt implementation is also broken for non-SPMI devices.
Also note that the two GPIO pins on PM8008 are used for interrupts and reset so their practical use should be limited.
Drop the broken GPIO support for PM8008 for now.
Fixes: ea119e5a482a ("pinctrl: qcom-pmic-gpio: Add support for pm8008") Cc: stable@vger.kernel.org # 5.13 Reviewed-by: Bryan O'Donoghue bryan.odonoghue@linaro.org Reviewed-by: Stephen Boyd swboyd@chromium.org Signed-off-by: Johan Hovold johan+linaro@kernel.org Link: https://lore.kernel.org/r/20240529162958.18081-9-johan+linaro@kernel.org Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -1207,7 +1207,6 @@ static const struct of_device_id pmic_gp { .compatible = "qcom,pm7325-gpio", .data = (void *) 10 }, { .compatible = "qcom,pm7550ba-gpio", .data = (void *) 8}, { .compatible = "qcom,pm8005-gpio", .data = (void *) 4 }, - { .compatible = "qcom,pm8008-gpio", .data = (void *) 2 }, { .compatible = "qcom,pm8019-gpio", .data = (void *) 6 }, /* pm8150 has 10 GPIOs with holes on 2, 5, 7 and 8 */ { .compatible = "qcom,pm8150-gpio", .data = (void *) 10 },