drm/rockchip: inno_hdmi: Remove unnecessary platform_get_resource() error check

devm_ioremap_resource() already checks if the resource is NULL, so
remove the unnecessary platform_get_resource() error check.

Cc: Heiko Stübner <heiko@sntech.de>
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1513602150-7542-4-git-send-email-festevam@gmail.com

drivers/gpu/drm/rockchip/inno_hdmi.c

@@ -831,9 +831,6 @@ static int inno_hdmi_bind(struct device *dev, struct device *master,
 	hdmi->drm_dev = drm;
 
 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!iores)
-		return -ENXIO;
-
 	hdmi->regs = devm_ioremap_resource(dev, iores);
 	if (IS_ERR(hdmi->regs))
 		return PTR_ERR(hdmi->regs);