[tip: timers/core] clocksource/drivers/sh_cmt: Document "cmt-48" as deprecated

[tip-bot2 for Magnus Damm]

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     19d608458f4f3bb3a1f89bd7e4814c3fd30dbec7
Gitweb:        https://git.kernel.org/tip/19d608458f4f3bb3a1f89bd7e4814c3fd30dbec7
Author:        Magnus Damm <damm+renesas@xxxxxxxxxxxxx>
AuthorDate:    Tue, 20 Aug 2019 21:36:07 +09:00
Committer:     Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitterDate: Tue, 27 Aug 2019 00:31:39 +02:00

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

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@xxxxxxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
 drivers/clocksource/sh_cmt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index abf5e78..ef773db 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -918,7 +918,11 @@ static const struct platform_device_id sh_cmt_id_table[] = {
 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]
+	},
 	{
 		/* deprecated, preserved for backward compatibility */
 		.compatible = "renesas,cmt-48-gen2",