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video: mxsfb: fix clk_get_by_name() return value check

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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>
This commit is contained in:
Giulio Benetti
2021-10-24 00:34:42 +02:00
committed by Anatolij Gustschin
parent 578b479aff
commit f36b3f8f17
1 changed files with 2 additions and 2 deletions
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4
drivers/video/mxsfb.c
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@@ -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);