clk: convert API to match reset/mailbox style
The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
provider now implements a single set of clocks. This provides a simpler
conceptual interface to clients, and better aligns with device tree
clock bindings.
* Clocks are now identified with a single "struct clk", rather than
requiring clients to store the clock provider device and clock identity
values separately. For simple clock consumers, this isolates clients
from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
clk-uclass.h contains the provider API. This aligns with the recently
added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
can customize these operations if needed. This also aligns with the
recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.
Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.
test/py passes for sandbox (which invokes the dm clk test amongst
others).
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-snapdragon/clock-apq8016.c b/arch/arm/mach-snapdragon/clock-apq8016.c
index d548d75..c2cf924 100644
--- a/arch/arm/mach-snapdragon/clock-apq8016.c
+++ b/arch/arm/mach-snapdragon/clock-apq8016.c
@@ -9,7 +9,7 @@
*/
#include <common.h>
-#include <clk.h>
+#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <asm/io.h>
@@ -212,11 +212,11 @@
return 0;
}
-ulong msm_set_periph_rate(struct udevice *dev, int periph, ulong rate)
+ulong msm_set_rate(struct clk *clk, ulong rate)
{
- struct msm_clk_priv *priv = dev_get_priv(dev);
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
- switch (periph) {
+ switch (clk->id) {
case 0: /* SDC1 */
return clk_init_sdc(priv, 0, rate);
break;
@@ -243,7 +243,7 @@
}
static struct clk_ops msm_clk_ops = {
- .set_periph_rate = msm_set_periph_rate,
+ .set_rate = msm_set_rate,
};
static const struct udevice_id msm_clk_ids[] = {