From: Fabien Dessenne Date: Thu, 7 Mar 2019 18:40:35 +0000 (+0100) Subject: irqchip/stm32: Don't clear rising/falling config registers at init X-Git-Tag: v5.15~6715^2~3^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0dda09666f50eae9c5b794dd89b1fd8a8d89d714;p=platform%2Fkernel%2Flinux-starfive.git irqchip/stm32: Don't clear rising/falling config registers at init 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 Signed-off-by: Fabien Dessenne Signed-off-by: Marc Zyngier --- diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 6edfd4b..dab37fb 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -735,11 +735,6 @@ 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("%pOF: bank%d\n", h_data->node, bank_idx);