[PATCH] dt-bindings: clock: agilex: mark mpu_l2ram_clk deprecated

[genevieve.chan@altera.com]

From: Genevieve Chan <genevieve.chan@altera.com>

Preliminary documentation referred to mpu_l2ram_clk, but that clock is
now mpu_ccu_clk and is already represented by AGILEX_MPU_CCU_CLK.
Keep AGILEX_MPU_L2RAM_CLK as a legacy ABI-preserved ID (do not use in
new DTs) and mark clock ID 42 as reserved/unused so it is not reused,
keeping all existing clock IDs stable for DT ABI compatibility.

Fixes: 6b3c59780ed3 ("dt-bindings: documentation: add clock bindings information for Agilex")
Cc: stable@vger.kernel.org # 5.8+
Signed-off-by: Genevieve Chan <genevieve.chan@altera.com>
---
 include/dt-bindings/clock/agilex-clock.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/dt-bindings/clock/agilex-clock.h b/include/dt-bindings/clock/agilex-clock.h
index 06feca07e08e..de7a58a06651 100644
--- a/include/dt-bindings/clock/agilex-clock.h
+++ b/include/dt-bindings/clock/agilex-clock.h
@@ -44,6 +44,7 @@
 
 /* Gate clocks */
 #define AGILEX_MPU_CLK			30
+/* Legacy ABI ID; do not use in new DTs, use AGILEX_MPU_CCU_CLK */
 #define AGILEX_MPU_L2RAM_CLK		31
 #define AGILEX_MPU_PERIPH_CLK		32
 #define AGILEX_L4_MAIN_CLK		33
@@ -55,6 +56,7 @@
 #define AGILEX_CS_TIMER_CLK		39
 #define AGILEX_S2F_USER0_CLK		40
 #define AGILEX_EMAC0_CLK		41
+/* 42 - reserved/unused */
 #define AGILEX_EMAC1_CLK		43
 #define AGILEX_EMAC2_CLK		44
 #define AGILEX_EMAC_PTP_CLK		45
-- 
2.43.7