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irqchip/stm32: Don't set rising configuration registers at init
The rising configuration status register (rtsr) is not banked.
As it is shared with the co-processor, it should not be written at probe
time, else the co-processor configuration will be lost.
Fixes: f9fc174550
("irqchip/stm32: Add host and driver data structures")
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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@ -716,7 +716,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data,
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const struct stm32_exti_bank *stm32_bank;
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struct stm32_exti_chip_data *chip_data;
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void __iomem *base = h_data->base;
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u32 irqs_mask;
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stm32_bank = h_data->drv_data->exti_banks[bank_idx];
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chip_data = &h_data->chips_data[bank_idx];
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@ -725,10 +724,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data,
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raw_spin_lock_init(&chip_data->rlock);
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/* Determine number of irqs supported */
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writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst);
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irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst);
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/*
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* This IP has no reset, so after hot reboot we should
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* clear registers to avoid residue
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