From: Fabien Dessenne <fabien.dessenne@xxxxxx> [ Upstream commit 0dda09666f50eae9c5b794dd89b1fd8a8d89d714 ] Falling and rising configuration and status registers are not banked. As they are shared with M4 co-processor, they should not be cleared at probe time, else M4 co-processor configuration will be lost. Fixes: f9fc1745501e ("irqchip/stm32: Add host and driver data structures") Signed-off-by: Loic Pallardy <loic.pallardy@xxxxxx> Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/irqchip/irq-stm32-exti.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 0a2088e12d96..97b27f338c30 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -650,11 +650,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data, */ writel_relaxed(0, base + stm32_bank->imr_ofst); writel_relaxed(0, base + stm32_bank->emr_ofst); - writel_relaxed(0, base + stm32_bank->rtsr_ofst); - writel_relaxed(0, base + stm32_bank->ftsr_ofst); - writel_relaxed(~0UL, base + stm32_bank->rpr_ofst); - if (stm32_bank->fpr_ofst != UNDEF_REG) - writel_relaxed(~0UL, base + stm32_bank->fpr_ofst); pr_info("%s: bank%d, External IRQs available:%#x\n", node->full_name, bank_idx, irqs_mask); -- 2.19.1