As what Linux Kernel 5.3.0 provides when enable/disable clk, there is an enable_count in clk_core_disable/enable. Introduce enable_count to track the clk enable/disable count when clk_enable/disable for CCF. And Initialize enable_count to 0 when register the clk.
And clk tree dump with enable_count will be supported, it will be easy for us to check the clk status with enable_count Signed-off-by: Peng Fan <peng....@nxp.com> --- V3: None CI: https://travis-ci.org/MrVan/u-boot/builds/574753709 V2: Improve commit log Rename enable_cnt to enable_count following Linux Kernel drivers/clk/clk.c | 1 + drivers/clk/clk_fixed_rate.c | 1 + include/clk.h | 1 + 3 files changed, 3 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 39b3087067..1cf9987f6c 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -40,6 +40,7 @@ int clk_register(struct clk *clk, const char *drv_name, return ret; } + clk->enable_count = 0; /* Store back pointer to clk from udevice */ clk->dev->uclass_priv = clk; diff --git a/drivers/clk/clk_fixed_rate.c b/drivers/clk/clk_fixed_rate.c index 08cce0d79b..f51126793e 100644 --- a/drivers/clk/clk_fixed_rate.c +++ b/drivers/clk/clk_fixed_rate.c @@ -27,6 +27,7 @@ static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev) /* Make fixed rate clock accessible from higher level struct clk */ dev->uclass_priv = clk; clk->dev = dev; + clk->enable_count = 0; return 0; } diff --git a/include/clk.h b/include/clk.h index 3ca2796b57..18b2e3ca54 100644 --- a/include/clk.h +++ b/include/clk.h @@ -61,6 +61,7 @@ struct clk { struct udevice *dev; long long rate; /* in HZ */ u32 flags; + int enable_count; /* * Written by of_xlate. In the future, we might add more fields here. */ -- 2.16.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
