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authorFabien Dessenne <fabien.dessenne@st.com>2019-03-07 21:40:35 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2019-03-21 14:08:25 +0300
commit0dda09666f50eae9c5b794dd89b1fd8a8d89d714 (patch)
tree51946dd0f12366c5a99cb04fcbec387134990b09 /drivers/irqchip
parent24105bf4d10485143f8e26337cda8bcb7f6e6da5 (diff)
downloadlinux-0dda09666f50eae9c5b794dd89b1fd8a8d89d714.tar.xz
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 <loic.pallardy@st.com> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-stm32-exti.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index 6edfd4bfa169..dab37fbfab82 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);