cmd: clk: Add trivial implementation of clock dump for DM

Add trivial implementation of the clk dump in case DM is enabled.
This implementation just iterates over all the clock registered
with the CLK uclass and prints their rate.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>

diff --git a/cmd/clk.c b/cmd/clk.c
index 73fb25092b32fa8589e7daf319acf6bb9b691460..fd4231589c5cb4d70cc69a9d613a26d504777d8d 100644 (file)
--- a/cmd/clk.c
+++ b/cmd/clk.c
@@ -5,11 +5,48 @@
 #include <common.h>
 #include <command.h>
 #include <clk.h>
+#if defined(CONFIG_DM) && defined(CONFIG_CLK)
+#include <dm.h>
+#include <dm/device-internal.h>
+#endif
 
 int __weak soc_clk_dump(void)
 {
+#if defined(CONFIG_DM) && defined(CONFIG_CLK)
+       struct udevice *dev;
+       struct uclass *uc;
+       struct clk clk;
+       int ret;
+
+       /* Device addresses start at 1 */
+       ret = uclass_get(UCLASS_CLK, &uc);
+       if (ret)
+               return ret;
+
+       uclass_foreach_dev(dev, uc) {
+               memset(&clk, 0, sizeof(clk));
+               ret = device_probe(dev);
+               if (ret) {
+                       printf("%-30.30s : ? Hz\n", dev->name);
+                       continue;
+               }
+
+               ret = clk_request(dev, &clk);
+               if (ret) {
+                       printf("%-30.30s : ? Hz\n", dev->name);
+                       continue;
+               }
+
+               printf("%-30.30s : %lu Hz\n", dev->name, clk_get_rate(&clk));
+
+               clk_free(&clk);
+       }
+
+       return 0;
+#else
        puts("Not implemented\n");
        return 1;
+#endif
 }
 
 static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc,