Re: [PATCH 3/6] drm: bridge: samsung-dsim: Fetch pll-clock-frequency automatically

[Marek Vasut]

On 4/15/23 12:41, Adam Ford wrote:
> Fetch the clock rate of "sclk_mipi" (or "pll_clk") instead of
> having an entry in the device tree for samsung,pll-clock-frequency.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> ---
>   drivers/gpu/drm/bridge/samsung-dsim.c | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
> index 9fec32b44e05..73f0c3fbbdf5 100644
> --- a/drivers/gpu/drm/bridge/samsung-dsim.c
> +++ b/drivers/gpu/drm/bridge/samsung-dsim.c
> @@ -1744,11 +1744,6 @@ static int samsung_dsim_parse_dt(struct samsung_dsim *dsi)
>   	struct device_node *node = dev->of_node;
>   	int ret;
>   
> -	ret = samsung_dsim_of_read_u32(node, "samsung,pll-clock-frequency",
> -				       &dsi->pll_clk_rate);
> -	if (ret < 0)
> -		return ret;
> -
>   	ret = samsung_dsim_of_read_u32(node, "samsung,burst-clock-frequency",
>   				       &dsi->burst_clk_rate);
>   	if (ret < 0)

Does this break compatibility with old samsung DTs ?