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[3/3] clocksource/drivers/sh_cmt: Document "cmt-48" as deprecated

Message ID 156076563276.6960.9613487456512544267.sendpatchset@octo (mailing list archive)
State Accepted
Delegated to: Geert Uytterhoeven
Headers show
Series clocksource/drivers/sh_cmt: Minor DT compat string update | expand

Commit Message

Magnus Damm June 17, 2019, 10 a.m. UTC 
From: Magnus Damm <damm+renesas@opensource.se>

Update the CMT driver to mark "renesas,cmt-48" as deprecated.

Instead of documenting a theoretical hardware device based on current software
support level, define DT bindings top-down based on available data sheet
information and make use of part numbers in the DT compat string.

In case of the only in-tree users r8a7740 and sh73a0 the compat strings
"renesas,r8a7740-cmt1" and "renesas,sh73a0-cmt1" may be used instead.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
---

The updated SoC-specific DT bindings are documented in:
[PATCH 2/8] dt-bindings: timer: renesas, cmt: Update CMT1 on sh73a0 and r8a7740

 drivers/clocksource/sh_cmt.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
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Patch

--- 0029/drivers/clocksource/sh_cmt.c
+++ work/drivers/clocksource/sh_cmt.c	2019-06-17 14:47:46.179233988 +0900
@@ -921,7 +921,11 @@  static const struct platform_device_id s
 MODULE_DEVICE_TABLE(platform, sh_cmt_id_table);
 
 static const struct of_device_id sh_cmt_of_table[] __maybe_unused = {
-	{ .compatible = "renesas,cmt-48", .data = &sh_cmt_info[SH_CMT_48BIT] },
+	{
+		/* deprecated, preserved for backward compatibility */
+		.compatible = "renesas,cmt-48",
+		.data = &sh_cmt_info[SH_CMT_48BIT]
+	},
 	{
 		.compatible = "renesas,r8a7740-cmt1",
 		.data = &sh_cmt_info[SH_CMT_48BIT]