drm: xilinx: osd: Enable the global alpha correctly

Fix a bug and write a correct value to enable global alpha.

Reported-by: Rob Armstrong JR <ra@xilinx.com>
Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/gpu/drm/xilinx/xilinx_osd.c b/drivers/gpu/drm/xilinx/xilinx_osd.c
index 0b82c760b987b3bbd0a2be91671dda0144cc0d14..b777fbbed5b874654ed38082df8e84f41ed5fae3 100644 (file)
--- a/drivers/gpu/drm/xilinx/xilinx_osd.c
+++ b/drivers/gpu/drm/xilinx/xilinx_osd.c
@@ -147,7 +147,7 @@ void xilinx_osd_layer_enable_alpha(struct xilinx_osd_layer *layer, bool enable)
        value = xilinx_drm_readl(layer->base, OSD_LXC);
        value = enable ? (value | OSD_LXC_GALPHAEN) :
                (value & ~OSD_LXC_GALPHAEN);
-       xilinx_drm_writel(layer->base, OSD_LXC, enable);
+       xilinx_drm_writel(layer->base, OSD_LXC, value);
 }
 
 /* set layer priority */