diff options
| author | Patrick Delaunay <patrick.delaunay@foss.st.com> | 2025-05-27 15:27:46 +0200 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2025-06-11 09:42:55 +0200 |
| commit | 0846bad0d08b53f6abaa4c8afe812dba93057424 (patch) | |
| tree | ac1b211b41cf6c1173eb318e59547cc7150a3326 /include/linux/clk-provider.h | |
| parent | 49bc67b3fa0f245dacc7e88797d88343a72163a5 (diff) | |
clk: add CONFIG_CLK_AUTO_ID
Add a new config CONFIG_CLK_AUTO_ID to support a unique clk id
for all the clock providers, managed by clk uclass, when the clock
reference arg[0] is the same.
When the CONFIG is activated, the clock id is limited to the lower
CLK_ID_SZ = 24 bits in default clock xlate function
and the sequence number + 1 of the clk provider device is
added for the 8 higher bits.
We use sequence number + 1 to avoid the "dummy" clock id = 0,
used for invalid clock when CCF is activated.
When this config is activated, the new function clk_get_id()
should be used to get back the internal reference to clock
for the each clock provider.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Diffstat (limited to 'include/linux/clk-provider.h')
| -rw-r--r-- | include/linux/clk-provider.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 267757939e0..2d754fa4287 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -15,10 +15,17 @@ struct udevice; +/* update clock ID for the dev = clock provider, compatible with CLK_AUTO_ID */ +static inline void dev_clk_dm(const struct udevice *dev, ulong id, struct clk *clk) +{ + if (!IS_ERR(clk)) + clk->id = CLK_ID(dev, id); +} + static inline void clk_dm(ulong id, struct clk *clk) { if (!IS_ERR(clk)) - clk->id = id; + clk->id = CLK_ID(clk->dev, id); } /* |