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

Giulio Benetti
2021-05-13T10:21:23Z

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.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);
>