| Message ID | 20240529162958.18081-9-johan+linaro@kernel.org |
|---|---|
| State | Accepted |
| Commit | 8da86499d4cd125a9561f9cd1de7fba99b0aecbf |
| Headers | show |
| Series | [v2,01/14] dt-bindings: mfd: pm8008: add reset gpio | expand |
On Wed, May 29, 2024 at 6:30 PM Johan Hovold <johan+linaro@kernel.org> wrote: > 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> This patch applied to pinctrl fixes. Yours, Linus Walleij
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index f4e2c88a7c82..e61be7d05494 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -1206,7 +1206,6 @@ static const struct of_device_id pmic_gpio_of_match[] = { { .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 },
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> --- drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 1 - 1 file changed, 1 deletion(-)