[PATCH v3 18/22] video: mxsfb: add enabling of "disp_axi" clock

Giulio Benetti
2021-05-13T10:19:32Z

Some SoC needs "disp_axi" clock to be enabled, so let's try to retrieve it
and enabling. If it fails it gives only a debug(), but this clock as well
as "axi" clock is not mandatory.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
---
drivers/video/mxsfb.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index 147bd668fe..523d8a8d98 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -98,6 +98,17 @@ static void mxs_lcd_init(struct udevice *dev, u32 fb_addr,
return;
}
}
+
+ ret = clk_get_by_name(dev, "disp_axi", &clk);
+ if (!ret) {
+ debug("%s: Failed to get mxs disp_axi clk: %d\n", __func__, ret);
+ } else {
+ ret = clk_enable(&clk);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable mxs disp_axi clk: %d\n", ret);
+ return;
+ }
+ }
#else
/* Kick in the LCDIF clock */
mxs_set_lcdclk(MXS_LCDIF_BASE, timings->pixelclock.typ / 1000);
--
2.25.1