Commit-ID: 0dda09666f50eae9c5b794dd89b1fd8a8d89d714
Gitweb: https://git.kernel.org/tip/0dda09666f50eae9c5b794dd89b1fd8a8d89d714
Author: Fabien Dessenne <fabien.dessenne@xxxxxx>
AuthorDate: Thu, 7 Mar 2019 19:40:35 +0100
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Thu, 21 Mar 2019 11:08:25 +0000
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@xxxxxx>
Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
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 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);
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