drm/ast: open key before detect chips

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / ast / ast_main.c

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index a2cc6be97983fe327cd4f67a4c3204cd4985691c..b027e332caa5ed5cc62c4c0d7439897f7b8e9273 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -67,6 +67,7 @@ static int ast_detect_chip(struct drm_device *dev)
 {
        struct ast_private *ast = dev->dev_private;
        uint32_t data, jreg;
+       ast_open_key(ast);
 
        if (dev->pdev->device == PCI_CHIP_AST1180) {
                ast->chip = AST1100;