Am Montag, 9. Dezember 2024, 13:33:29 CET schrieb Andy Yan:
> From: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
>
> There is a version number hardcoded in the VOP VERSION_INFO
> register, and the version number increments sequentially based
> on the production order of the SOC.
>
> So using this version number to distinguish different VOP features
> will simplify the code.
>
> Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
> Tested-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxxx> # on RK3568
> Tested-by: Detlev Casanova <detlev.casanova@xxxxxxxxxxxxx>
> @@ -798,6 +798,7 @@ static void rk3588_vop2_power_domain_enable_all(struct vop2 *vop2)
> static void vop2_enable(struct vop2 *vop2)
> {
> int ret;
> + u32 version;
>
> ret = pm_runtime_resume_and_get(vop2->dev);
> if (ret < 0) {
> @@ -817,10 +818,19 @@ static void vop2_enable(struct vop2 *vop2)
> return;
> }
>
> + version = vop2_readl(vop2, RK3568_VERSION_INFO);
> + if (version != vop2->version) {
> + drm_err(vop2->drm, "Hardware version(0x%08x) mismatch\n", version);
> + return;
> + }
style-nit: please add a blank line here.
> + /*
> + * rk3566 share the same vop version with rk3568, so
> + * wen need to use soc_id for identification here.
> + */
> if (vop2->data->soc_id == 3566)
> vop2_writel(vop2, RK3568_OTP_WIN_EN, 1);
>
otherwise, looks good.
Thanks
Heiko
