libdrm: add etnaviv (i.MX6/Vivante GCxxx) option

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libdrm/Config.in

@@ -62,6 +62,14 @@ config BR2_PACKAGE_LIBDRM_OMAP
 	help
 	  Install the TI OMAP driver using an experimental API.
 
+config BR2_PACKAGE_LIBDRM_ETNAVIV
+	bool "etnaviv (experimental)"
+	depends on BR2_arm
+	depends on BR2_PACKAGE_LIBDRM_HAS_ATOMIC
+	select BR2_PACKAGE_LIBDRM_ENABLE_ATOMIC
+	help
+	  Install the Etnaviv/Vivante driver using an experimental API.
+
 config BR2_PACKAGE_LIBDRM_EXYNOS
 	bool "exynos (experimental)"
 	depends on BR2_arm

package/libdrm/libdrm.mk

@@ -65,6 +65,12 @@ else
 LIBDRM_CONF_OPTS += --disable-omap-experimental-api
 endif
 
+ifeq ($(BR2_PACKAGE_LIBDRM_ETNAVIV),y)
+LIBDRM_CONF_OPTS += --enable-etnaviv-experimental-api
+else
+LIBDRM_CONF_OPTS += --disable-etnaviv-experimental-api
+endif
+
 ifeq ($(BR2_PACKAGE_LIBDRM_EXYNOS),y)
 LIBDRM_CONF_OPTS += --enable-exynos-experimental-api
 else