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linux/drivers/pinctrl/qcom
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Praveen Talari a71677392c pinctrl: qcom: msm: Fix deadlock in pinmux configuration 
[ Upstream commit 1c2e70397b ]

Replace disable_irq() with disable_irq_nosync() in msm_pinmux_set_mux()
to prevent deadlock when wakeup IRQ is triggered on the same
GPIO being reconfigured.

The issue occurs when a wakeup IRQ is triggered on a GPIO and the IRQ
handler attempts to reconfigure the same GPIO's pinmux. In this scenario,
msm_pinmux_set_mux() calls disable_irq() which waits for the currently
running IRQ handler to complete, creating a circular dependency that
results in deadlock.

Using disable_irq_nosync() avoids waiting for the IRQ handler to
complete, preventing the deadlock condition while still properly
disabling the interrupt during pinmux reconfiguration.

Suggested-by: Prasad Sodagudi <prasad.sodagudi@oss.qualcomm.com>
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-12-12 18:37:20 +01:00
..
Kconfig pinctrl: qcom: Introduce SM4250 LPI pinctrl driver 2024-06-26 12:41:07 +02:00
Kconfig.msm pinctrl: qcom: sm4450: dd SM4450 pinctrl driver 2023-12-20 12:03:03 +01:00
Makefile pinctrl: qcom: Introduce SM4250 LPI pinctrl driver 2024-06-26 12:41:07 +02:00
pinctrl-apq8064.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-apq8084.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq4019.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq5018.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq5332.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq6018.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq8064.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq8074.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-ipq9574.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-lpass-lpi.c pinctrl: qcom: lpass-lpi: increase MAX_NR_GPIO to 32 2024-07-03 14:31:09 +02:00
pinctrl-lpass-lpi.h pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-mdm9607.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-mdm9615.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm.c pinctrl: qcom: msm: Fix deadlock in pinmux configuration 2025-12-12 18:37:20 +01:00
pinctrl-msm.h pinctrl: qcom: handle intr_target_reg wakeup_present/enable bits 2023-11-13 15:01:37 +01:00
pinctrl-msm8x74.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8226.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8660.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8909.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8916.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8953.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8960.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8976.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8994.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8996.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-msm8998.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-qcm2290.c pinctrl: qcom: pinctrl-qcm2290: Add missing pins 2025-06-19 15:32:27 +02:00
pinctrl-qcs404.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-qdf2xxx.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-qdu1000.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sa8775p.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sc7180.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sc7280-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sc7280.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sc8180x.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sc8280xp-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sc8280xp.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sdm660.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sdm670.c pinctrl: qcom: sdm670: add pdc wakeirq map 2024-06-17 09:25:45 +02:00
pinctrl-sdm845.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sdx55.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sdx65.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sdx75.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm4250-lpass-lpi.c pinctrl: qcom: Introduce SM4250 LPI pinctrl driver 2024-06-26 12:41:07 +02:00
pinctrl-sm4450.c pinctrl: qcom: sm4450: dd SM4450 pinctrl driver 2023-12-20 12:03:03 +01:00
pinctrl-sm6115-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm6115.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm6125.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm6350.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm6375.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm7150.c pinctrl: qcom: pinctrl-sm7150: Fix sdc1 and ufs special pins regs 2024-05-03 09:55:04 +02:00
pinctrl-sm8150.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm8250-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm8250.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm8350-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm8350.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm8450-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm8450.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm8550-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm8550.c pinctrl: qcom/msm: Convert to platform remove callback returning void 2023-10-10 15:47:49 +02:00
pinctrl-sm8650-lpass-lpi.c pinctrl: qcom: lpass-lpi: Remove unused member in struct lpi_pingroup 2023-12-01 14:59:53 +01:00
pinctrl-sm8650.c pinctrl: qcom: Introduce the SM8650 Top Level Mode Multiplexer driver 2023-11-13 15:05:13 +01:00
pinctrl-spmi-gpio.c pinctrl: qcom-pmic-gpio: add support for PM8937 2024-12-14 20:04:02 +01:00
pinctrl-spmi-mpp.c pinctrl: qcom: spmi-mpp: Add PM8937 compatible 2024-12-14 20:04:02 +01:00
pinctrl-ssbi-gpio.c pinctrl: qcom: ssbi-gpio: Convert to platform remove callback returning void 2023-10-10 15:43:31 +02:00
pinctrl-ssbi-mpp.c pinctrl: qcom: ssbi-mpp: Convert to platform remove callback returning void 2023-10-10 15:43:56 +02:00
pinctrl-x1e80100.c pinctrl: qcom: x1e80100: Bypass PDC wakeup parent for now 2024-09-02 11:07:48 +02:00