brcm2708: remove linux 4.4 support

[openwrt/staging/yousong.git] / target / linux / brcm2708 / patches-4.4 / 0292-drm-vc4-Respect-GPIO_ACTIVE_LOW-on-HDMI-HPD-if-set-i.patch

diff --git a/target/linux/brcm2708/patches-4.4/0292-drm-vc4-Respect-GPIO_ACTIVE_LOW-on-HDMI-HPD-if-set-i.patch b/target/linux/brcm2708/patches-4.4/0292-drm-vc4-Respect-GPIO_ACTIVE_LOW-on-HDMI-HPD-if-set-i.patch
deleted file mode 100644 (file)
index 1922777..0000000
--- a/target/linux/brcm2708/patches-4.4/0292-drm-vc4-Respect-GPIO_ACTIVE_LOW-on-HDMI-HPD-if-set-i.patch
+++ /dev/null
@@ -1,57 +0,0 @@
-From 79c0037706c4e589f1743679e21a0aee51b9b609 Mon Sep 17 00:00:00 2001
-From: Eric Anholt <eric@anholt.net>
-Date: Mon, 29 Feb 2016 17:53:01 -0800
-Subject: [PATCH] drm/vc4: Respect GPIO_ACTIVE_LOW on HDMI HPD if set in the
- devicetree.
-
-The original Raspberry Pi had the GPIO active high, but the later
-models are active low.  The DT GPIO bindings allow specifying the
-active flag, except that it doesn't get propagated to the gpiodesc, so
-you have to handle it yourself.
-
-Signed-off-by: Eric Anholt <eric@anholt.net>
-Tested-by: Daniel Stone <daniels@collabora.com>
-(cherry picked from commit 0b06e0a7945130e6a187f7959529cba7725f573a)
----
- drivers/gpu/drm/vc4/vc4_hdmi.c | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_hdmi.c
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
-@@ -47,6 +47,7 @@ struct vc4_hdmi {
-       void __iomem *hdmicore_regs;
-       void __iomem *hd_regs;
-       int hpd_gpio;
-+      bool hpd_active_low;
- 
-       struct clk *pixel_clock;
-       struct clk *hsm_clock;
-@@ -168,7 +169,8 @@ vc4_hdmi_connector_detect(struct drm_con
-       return connector_status_connected;
- 
-       if (vc4->hdmi->hpd_gpio) {
--              if (gpio_get_value_cansleep(vc4->hdmi->hpd_gpio))
-+              if (gpio_get_value_cansleep(vc4->hdmi->hpd_gpio) ^
-+                  vc4->hdmi->hpd_active_low)
-                       return connector_status_connected;
-               else
-                       return connector_status_disconnected;
-@@ -519,11 +521,17 @@ static int vc4_hdmi_bind(struct device *
-        * we'll use the HDMI core's register.
-        */
-       if (of_find_property(dev->of_node, "hpd-gpios", &value)) {
--              hdmi->hpd_gpio = of_get_named_gpio(dev->of_node, "hpd-gpios", 0);
-+              enum of_gpio_flags hpd_gpio_flags;
-+
-+              hdmi->hpd_gpio = of_get_named_gpio_flags(dev->of_node,
-+                                                       "hpd-gpios", 0,
-+                                                       &hpd_gpio_flags);
-               if (hdmi->hpd_gpio < 0) {
-                       ret = hdmi->hpd_gpio;
-                       goto err_unprepare_hsm;
-               }
-+
-+              hdmi->hpd_active_low = hpd_gpio_flags & OF_GPIO_ACTIVE_LOW;
-       }
- 
-       vc4->hdmi = hdmi;