From 8fc66000d8a0207a94bc07fc6736dcfef3628ed3 Mon Sep 17 00:00:00 2001 From: Ansuel Smith Date: Sun, 16 Jan 2022 19:38:18 +0100 Subject: [PATCH] generic: 5.15: fix affinity warning for qcom target Backport a patch from 5.18 that fix affinity warning from qcom pinctrl driver. Signed-off-by: Ansuel Smith --- ...or-setting-affinity-if-no-IRQ-parent.patch | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 target/linux/generic/backport-5.15/300-v5.18-pinctrl-qcom-Return--EINVAL-for-setting-affinity-if-no-IRQ-parent.patch diff --git a/target/linux/generic/backport-5.15/300-v5.18-pinctrl-qcom-Return--EINVAL-for-setting-affinity-if-no-IRQ-parent.patch b/target/linux/generic/backport-5.15/300-v5.18-pinctrl-qcom-Return--EINVAL-for-setting-affinity-if-no-IRQ-parent.patch new file mode 100644 index 00000000000000..796ca74b4d6464 --- /dev/null +++ b/target/linux/generic/backport-5.15/300-v5.18-pinctrl-qcom-Return--EINVAL-for-setting-affinity-if-no-IRQ-parent.patch @@ -0,0 +1,50 @@ +From: Manivannan Sadhasivam +To: linus.walleij@linaro.org +Cc: bjorn.andersson@linaro.org, dianders@chromium.org, + linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org, + linux-kernel@vger.kernel.org, + Manivannan Sadhasivam +Subject: [PATCH] pinctrl: qcom: Return -EINVAL for setting affinity if no IRQ + parent +Date: Thu, 13 Jan 2022 21:56:17 +0530 +Message-Id: <20220113162617.131697-1-manivannan.sadhasivam@linaro.org> + +The MSM GPIO IRQ controller relies on the parent IRQ controller to set the +CPU affinity for the IRQ. And this is only valid if there is any wakeup +parent available and defined in DT. + +For the case of no parent IRQ controller defined in DT, +msm_gpio_irq_set_affinity() and msm_gpio_irq_set_vcpu_affinity() should +return -EINVAL instead of 0 as the affinity can't be set. + +Otherwise, below warning will be printed by genirq: + +genirq: irq_chip msmgpio did not update eff. affinity mask of irq 70 + +Signed-off-by: Manivannan Sadhasivam +--- + drivers/pinctrl/qcom/pinctrl-msm.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c +index 8476a8ac4451..a42ff4b22a04 100644 +--- a/drivers/pinctrl/qcom/pinctrl-msm.c ++++ b/drivers/pinctrl/qcom/pinctrl-msm.c +@@ -1157,7 +1157,7 @@ static int msm_gpio_irq_set_affinity(struct irq_data *d, + if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs)) + return irq_chip_set_affinity_parent(d, dest, force); + +- return 0; ++ return -EINVAL; + } + + static int msm_gpio_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) +@@ -1168,7 +1168,7 @@ static int msm_gpio_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) + if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs)) + return irq_chip_set_vcpu_affinity_parent(d, vcpu_info); + +- return 0; ++ return -EINVAL; + } + + static void msm_gpio_irq_handler(struct irq_desc *desc)