dt-bindings: devfreq: rk3399_dmc: Deprecate unused/redundant properties

These DRAM configuration properties are all handled in ARM Trusted
Firmware (and have been since the early days of this SoC), and there are
no in-tree users of the DMC binding yet. It's better to just defer to
firmware instead of maintaining this large list of properties.

There's also some confusion about units: many of these are specified in
MHz, but the downstream users and driver code are treating them as Hz, I
believe. Rather than straighten all that out, I just drop them.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml

@@ -45,6 +45,7 @@ properties:
       finishes, a DCF interrupt is triggered.
 
   rockchip,ddr3_speed_bin:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       For values, reference include/dt-bindings/clock/rk3399-ddr.h. Selects the
@@ -91,20 +92,23 @@ properties:
       if bus is idle for standby_idle * DFI clock cycles.
 
   rockchip,dram_dll_dis_freq:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description: |
       Defines the DDR3 DLL bypass frequency in MHz. When DDR frequency is less
       than DRAM_DLL_DISB_FREQ, DDR3 DLL will be bypassed.
       Note: if DLL was bypassed, the odt will also stop working.
 
   rockchip,phy_dll_dis_freq:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description: |
       Defines the PHY dll bypass frequency in MHz (Mega Hz). When DDR frequency
       is less than DRAM_DLL_DISB_FREQ, PHY DLL will be bypassed.
       Note: PHY DLL and PHY ODT are independent.
 
   rockchip,auto_pd_dis_freq:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       Defines the auto PD disable frequency in MHz.
@@ -118,34 +122,39 @@ properties:
       disabled.
 
   rockchip,ddr3_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is DDR3, this parameter defines the DRAM side drive
       strength in ohms.
     default: 40
 
   rockchip,ddr3_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is DDR3, this parameter defines the DRAM side ODT
       strength in ohms.
     default: 120
 
   rockchip,phy_ddr3_ca_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is DDR3, this parameter defines the phy side CA line
       (incluing command line, address line and clock line) drive strength.
     default: 40
 
   rockchip,phy_ddr3_dq_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is DDR3, this parameter defines the PHY side DQ line
       (including DQS/DQ/DM line) drive strength.
     default: 40
 
   rockchip,phy_ddr3_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is DDR3, this parameter defines the PHY side ODT
@@ -161,34 +170,39 @@ properties:
       disabled.
 
   rockchip,lpddr3_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR3, this parameter defines the DRAM side drive
       strength in ohms.
     default: 34
 
   rockchip,lpddr3_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR3, this parameter defines the DRAM side ODT
       strength in ohms.
     default: 240
 
   rockchip,phy_lpddr3_ca_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR3, this parameter defines the PHY side CA line
       (including command line, address line and clock line) drive strength.
     default: 40
 
   rockchip,phy_lpddr3_dq_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR3, this parameter defines the PHY side DQ line
       (including DQS/DQ/DM line) drive strength.
     default: 40
 
   rockchip,phy_lpddr3_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When dram type is LPDDR3, this parameter define the phy side odt
@@ -203,48 +217,55 @@ properties:
       disabled.
 
   rockchip,lpddr4_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the DRAM side drive
       strength in ohms.
     default: 60
 
   rockchip,lpddr4_dq_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
       DQS/DQ line strength in ohms.
     default: 40
 
   rockchip,lpddr4_ca_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the DRAM side ODT on
       CA line strength in ohms.
     default: 40
 
   rockchip,phy_lpddr4_ca_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the PHY side CA line
       (including command address line) drive strength.
     default: 40
 
   rockchip,phy_lpddr4_ck_cs_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the PHY side clock
       line and CS line drive strength.
     default: 80
 
   rockchip,phy_lpddr4_dq_drv:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the PHY side DQ line
       (including DQS/DQ/DM line) drive strength.
     default: 80
 
   rockchip,phy_lpddr4_odt:
+    deprecated: true
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       When the DRAM type is LPDDR4, this parameter defines the PHY side ODT
@@ -274,33 +295,12 @@ examples:
       clock-names = "dmc_clk";
       operating-points-v2 = <&dmc_opp_table>;
       center-supply = <&ppvar_centerlogic>;
-      rockchip,ddr3_speed_bin = <21>;
       rockchip,pd_idle = <0x40>;
       rockchip,sr_idle = <0x2>;
       rockchip,sr_mc_gate_idle = <0x3>;
       rockchip,srpd_lite_idle = <0x4>;
       rockchip,standby_idle = <0x2000>;
-      rockchip,dram_dll_dis_freq = <300>;
-      rockchip,phy_dll_dis_freq = <125>;
-      rockchip,auto_pd_dis_freq = <666>;
       rockchip,ddr3_odt_dis_freq = <333>;
-      rockchip,ddr3_drv = <40>;
-      rockchip,ddr3_odt = <120>;
-      rockchip,phy_ddr3_ca_drv = <40>;
-      rockchip,phy_ddr3_dq_drv = <40>;
-      rockchip,phy_ddr3_odt = <240>;
       rockchip,lpddr3_odt_dis_freq = <333>;
-      rockchip,lpddr3_drv = <34>;
-      rockchip,lpddr3_odt = <240>;
-      rockchip,phy_lpddr3_ca_drv = <40>;
-      rockchip,phy_lpddr3_dq_drv = <40>;
-      rockchip,phy_lpddr3_odt = <240>;
       rockchip,lpddr4_odt_dis_freq = <333>;
-      rockchip,lpddr4_drv = <60>;
-      rockchip,lpddr4_dq_odt = <40>;
-      rockchip,lpddr4_ca_odt = <40>;
-      rockchip,phy_lpddr4_ca_drv = <40>;
-      rockchip,phy_lpddr4_ck_cs_drv = <80>;
-      rockchip,phy_lpddr4_dq_drv = <80>;
-      rockchip,phy_lpddr4_odt = <60>;
     };