MLK-10169 GPU: fix kernel booting issue on iMX6sx SOC without GPU

Add checking GPU module logic in qos init. This prevents kernel
booting issue in the iMX6sx SOC where there is no GPU module.

Signed-off-by: Shawn Xiao <b49994@freescale.com>

diff --git a/arch/arm/mach-imx/mach-imx6sx.c b/arch/arm/mach-imx/mach-imx6sx.c
index 3b3da5242c70af9d0b4d2a9c0d9c43087cf424ad..7f5188f51b19e17a7a40eaf626ab89e82a351f04 100755 (executable)
--- a/arch/arm/mach-imx/mach-imx6sx.c
+++ b/arch/arm/mach-imx/mach-imx6sx.c
@@ -239,6 +239,10 @@ static inline void imx6sx_qos_init(void)
        struct device_node *np;
        void   __iomem *src_base;
 
+       np = of_find_compatible_node(NULL, NULL, "fsl,imx6sx-gpu");
+       if (!np || !of_device_is_available(np))
+               return;
+
        np = of_find_compatible_node(NULL, NULL, "fsl,imx6sx-qosc");
        if (!np)
                return;