If clk_get_by_name() returns 0 it means it executed successfully while now we consider it as an error. So let's check if return value is negative to be an error. Otherwise this prevents "axi" and "disp_axi" to be enabled.
Signed-off-by: Giulio Benetti giulio.benetti@benettiengineering.com --- drivers/video/mxsfb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 98d2965711..5f85c0c3eb 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -89,7 +89,7 @@ static void mxs_lcd_init(struct udevice *dev, u32 fb_addr, }
ret = clk_get_by_name(dev, "axi", &clk); - if (!ret) { + if (ret < 0) { debug("%s: Failed to get mxs axi clk: %d\n", __func__, ret); } else { ret = clk_enable(&clk); @@ -100,7 +100,7 @@ static void mxs_lcd_init(struct udevice *dev, u32 fb_addr, }
ret = clk_get_by_name(dev, "disp_axi", &clk); - if (!ret) { + if (ret < 0) { debug("%s: Failed to get mxs disp_axi clk: %d\n", __func__, ret); } else { ret = clk_enable(&clk);