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

[Giulio Benetti]

Sorry for this patch sent twice. My e-mail provider doesn't let me send 
more than 18 e-mail at a time, so I need to send it in 2 times and I've 
left this.

Best regards
--
Giulio Benetti
Benetti Engineering sas
On 5/13/21 12:19 PM, Giulio Benetti wrote:
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.bene...@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);