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authorBaolin Wang <baolin.wang@linaro.org>2019-04-10 10:47:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-02 10:58:53 +0300
commita19e4a1b4c63c3c3fd151ec443b395bcaeba59bd (patch)
tree03016f3c71d9d3076636acc81ec9a42efb806af7
parentcffeb9c84d20816a2173e3cfeca210c8bfa8e357 (diff)
downloadlinux-a19e4a1b4c63c3c3fd151ec443b395bcaeba59bd.tar.xz
gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC
commit 102bbe34b31c9159e714432afd64458f6f3876d7 upstream. When setting sync EIC as IRQ_TYPE_EDGE_BOTH type, we missed to set the SPRD_EIC_SYNC_INTMODE register to 0, which means detecting edge signals. Thus this patch fixes the issue. Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support") Cc: <stable@vger.kernel.org> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpio/gpio-eic-sprd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index e41223c05f6e..6cf2e2ce4093 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -414,6 +414,7 @@ static int sprd_eic_irq_set_type(struct irq_data *data, unsigned int flow_type)
irq_set_handler_locked(data, handle_edge_irq);
break;
case IRQ_TYPE_EDGE_BOTH:
+ sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTMODE, 0);
sprd_eic_update(chip, offset, SPRD_EIC_SYNC_INTBOTH, 1);
irq_set_handler_locked(data, handle_edge_irq);
break;