From 6306b3a58c91806a9d9b1bf60fa66804b29beecb Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Mon, 30 Jan 2017 17:39:48 +0100 Subject: [PATCH] video: ARM CLCD: use panel device node for getting backlight and mode Having obtained panel device node in clcdfb_of_init_display() it allows to generalize and simplify two more helper functions clcdfb_of_get_backlight() and clcdfb_of_get_mode(). Cc: Tomi Valkeinen Cc: Russell King Cc: Linus Walleij Cc: Arnd Bergmann Signed-off-by: Vladimir Zapolskiy Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/amba-clcd.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index f25b5fce9991..0fab92c62828 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -624,16 +624,11 @@ static int clcdfb_snprintf_mode(char *buf, int size, struct fb_videomode *mode) mode->refresh); } -static int clcdfb_of_get_backlight(struct device_node *endpoint, +static int clcdfb_of_get_backlight(struct device_node *panel, struct clcd_panel *clcd_panel) { - struct device_node *panel; struct device_node *backlight; - panel = of_graph_get_remote_port_parent(endpoint); - if (!panel) - return -ENODEV; - /* Look up the optional backlight phandle */ backlight = of_parse_phandle(panel, "backlight", 0); if (backlight) { @@ -646,19 +641,14 @@ static int clcdfb_of_get_backlight(struct device_node *endpoint, return 0; } -static int clcdfb_of_get_mode(struct device *dev, struct device_node *endpoint, - struct clcd_panel *clcd_panel) +static int clcdfb_of_get_mode(struct device *dev, struct device_node *panel, + struct clcd_panel *clcd_panel) { int err; - struct device_node *panel; struct fb_videomode *mode; char *name; int len; - panel = of_graph_get_remote_port_parent(endpoint); - if (!panel) - return -ENODEV; - /* Only directly connected DPI panels supported for now */ if (of_device_is_compatible(panel, "panel-dpi")) err = clcdfb_of_get_dpi_panel_mode(panel, clcd_panel); @@ -791,11 +781,11 @@ static int clcdfb_of_init_display(struct clcd_fb *fb) return err; } - err = clcdfb_of_get_backlight(endpoint, fb->panel); + err = clcdfb_of_get_backlight(panel, fb->panel); if (err) return err; - err = clcdfb_of_get_mode(&fb->dev->dev, endpoint, fb->panel); + err = clcdfb_of_get_mode(&fb->dev->dev, panel, fb->panel); if (err) return err; -- 2.30.2