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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0295-drm-vc4-Let-gpiolib-know-that-we-re-OK-with-sleeping.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0295-drm-vc4-Let-gpiolib-know-that-we-re-OK-with-sleeping.patch27
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0295-drm-vc4-Let-gpiolib-know-that-we-re-OK-with-sleeping.patch b/target/linux/brcm2708/patches-4.4/0295-drm-vc4-Let-gpiolib-know-that-we-re-OK-with-sleeping.patch
new file mode 100644
index 0000000000..4f74d0ab29
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0295-drm-vc4-Let-gpiolib-know-that-we-re-OK-with-sleeping.patch
@@ -0,0 +1,27 @@
+From 10f0d3fb0d155b0a6837f56a5e6a663a33d003ba Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 29 Feb 2016 17:53:00 -0800
+Subject: [PATCH 295/304] drm/vc4: Let gpiolib know that we're OK with sleeping
+ for HPD.
+
+Fixes an error thrown every few seconds when we poll HPD when it's on
+a I2C to GPIO expander.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+Tested-by: Daniel Stone <daniels@collabora.com>
+(cherry picked from commit 0e60eab57557bc06bb3a5ef8d5d6dcd9ddd47aff)
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -168,7 +168,7 @@ vc4_hdmi_connector_detect(struct drm_con
+ return connector_status_connected;
+
+ if (vc4->hdmi->hpd_gpio) {
+- if (gpio_get_value(vc4->hdmi->hpd_gpio))
++ if (gpio_get_value_cansleep(vc4->hdmi->hpd_gpio))
+ return connector_status_connected;
+ else
+ return connector_status_disconnected;