YAML conversion of rk3399 clock controller binding, removal of GRF

dependency for the rk3328/rk3036 pll types and some clock tree fixes.
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Merge tag 'v5.15-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip

Pull Rockchip clk driver updates from Heiko Stuebner:

 - YAML conversion of rk3399 clock controller binding
 - Removal of GRF dependency for the rk3328/rk3036 pll types
 - some clock tree fixes

* tag 'v5.15-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: make rk3308 ddrphy4x clock critical
  clk: rockchip: drop GRF dependency for rk3328/rk3036 pll types
  dt-bindings: clk: Convert rockchip,rk3399-cru to DT schema
  clk: rockchip: Add support for hclk_sfc on rk3036
  clk: rockchip: rk3036: fix up the sclk_sfc parent error
  clk: rockchip: add dt-binding clkid for hclk_sfc on rk3036

Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.txt

@@ -1,68 +0,0 @@
-* Rockchip RK3399 Clock and Reset Unit
-
-The RK3399 clock controller generates and supplies clock to various
-controllers within the SoC and also implements a reset controller for SoC
-peripherals.
-
-Required Properties:
-
-- compatible: PMU for CRU should be "rockchip,rk3399-pmucru"
-- compatible: CRU should be "rockchip,rk3399-cru"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-
-Optional Properties:
-
-- rockchip,grf: phandle to the syscon managing the "general register files".
-  It is used for GRF muxes, if missing any muxes present in the GRF will not
-  be available.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/rk3399-cru.h headers and can be
-used in device tree sources. Similar macros exist for the reset sources in
-these files.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "xin24m" - crystal input - required,
- - "xin32k" - rtc clock - optional,
- - "clkin_gmac" - external GMAC clock - optional,
- - "clkin_i2s" - external I2S clock - optional,
- - "pclkin_cif" - external ISP clock - optional,
- - "clk_usbphy0_480m" - output clock of the pll in the usbphy0
- - "clk_usbphy1_480m" - output clock of the pll in the usbphy1
-
-Example: Clock controller node:
-
-	pmucru: pmu-clock-controller@ff750000 {
-		compatible = "rockchip,rk3399-pmucru";
-		reg = <0x0 0xff750000 0x0 0x1000>;
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-	};
-
-	cru: clock-controller@ff760000 {
-		compatible = "rockchip,rk3399-cru";
-		reg = <0x0 0xff760000 0x0 0x1000>;
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-	};
-
-Example: UART controller node that consumes the clock generated by the clock
-  controller:
-
-	uart0: serial@ff1a0000 {
-		compatible = "rockchip,rk3399-uart", "snps,dw-apb-uart";
-		reg = <0x0 0xff180000 0x0 0x100>;
-		clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
-		clock-names = "baudclk", "apb_pclk";
-		interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
-		reg-shift = <2>;
-		reg-io-width = <4>;
-	};

Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml

@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3399-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3399 Clock and Reset Unit
+
+maintainers:
+  - Xing Zheng <zhengxing@rock-chips.com>
+  - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+  The RK3399 clock controller generates and supplies clock to various
+  controllers within the SoC and also implements a reset controller for SoC
+  peripherals.
+  Each clock is assigned an identifier and client nodes can use this identifier
+  to specify the clock which they consume. All available clocks are defined as
+  preprocessor macros in the dt-bindings/clock/rk3399-cru.h headers and can be
+  used in device tree sources. Similar macros exist for the reset sources in
+  these files.
+  There are several clocks that are generated outside the SoC. It is expected
+  that they are defined using standard clock bindings with following
+  clock-output-names:
+    - "xin24m" - crystal input - required,
+    - "xin32k" - rtc clock - optional,
+    - "clkin_gmac" - external GMAC clock - optional,
+    - "clkin_i2s" - external I2S clock - optional,
+    - "pclkin_cif" - external ISP clock - optional,
+    - "clk_usbphy0_480m" - output clock of the pll in the usbphy0
+    - "clk_usbphy1_480m" - output clock of the pll in the usbphy1
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3399-pmucru
+      - rockchip,rk3399-cru
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  clocks:
+    minItems: 1
+
+  assigned-clocks:
+    minItems: 1
+    maxItems: 64
+
+  assigned-clock-parents:
+    minItems: 1
+    maxItems: 64
+
+  assigned-clock-rates:
+    minItems: 1
+    maxItems: 64
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: >
+      phandle to the syscon managing the "general register files". It is used
+      for GRF muxes, if missing any muxes present in the GRF will not be
+      available.
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    pmucru: pmu-clock-controller@ff750000 {
+      compatible = "rockchip,rk3399-pmucru";
+      reg = <0xff750000 0x1000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };
+  - |
+    cru: clock-controller@ff760000 {
+      compatible = "rockchip,rk3399-cru";
+      reg = <0xff760000 0x1000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };

drivers/clk/rockchip/clk-pll.c

@@ -940,7 +940,7 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx,
 	switch (pll_type) {
 	case pll_rk3036:
 	case pll_rk3328:
-		if (!pll->rate_table || IS_ERR(ctx->grf))
+		if (!pll->rate_table)
 			init.ops = &rockchip_rk3036_pll_clk_norate_ops;
 		else
 			init.ops = &rockchip_rk3036_pll_clk_ops;

drivers/clk/rockchip/clk-rk3036.c

@@ -121,6 +121,7 @@ PNAME(mux_pll_src_3plls_p)	= { "apll", "dpll", "gpll" };
 PNAME(mux_timer_p)		= { "xin24m", "pclk_peri_src" };
 
 PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p)	= { "apll", "dpll", "gpll", "usb480m" };
+PNAME(mux_pll_src_dmyapll_dpll_gpll_xin24_p)   = { "dummy_apll", "dpll", "gpll", "xin24m" };
 
 PNAME(mux_mmc_src_p)	= { "apll", "dpll", "gpll", "xin24m" };
 PNAME(mux_i2s_pre_p)	= { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
@@ -340,7 +341,7 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 			RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
 			RK2928_CLKGATE_CON(10), 4, GFLAGS),
 
-	COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
+	COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_dmyapll_dpll_gpll_xin24_p, 0,
 			RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
 			RK2928_CLKGATE_CON(10), 5, GFLAGS),
 
@@ -403,7 +404,7 @@ static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
 	GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
 	GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
 	GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
-	GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
+	GATE(HCLK_SFC, "hclk_sfc", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 14, GFLAGS),
 	GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS),
 
 	/* pclk_peri gates */

drivers/clk/rockchip/clk-rk3308.c

@@ -911,6 +911,7 @@ static const char *const rk3308_critical_clocks[] __initconst = {
 	"hclk_audio",
 	"pclk_audio",
 	"sclk_ddrc",
+	"clk_ddrphy4x",
 };
 
 static void __init rk3308_clk_init(struct device_node *np)

include/dt-bindings/clock/rk3036-cru.h

@@ -81,6 +81,7 @@
 #define HCLK_OTG0		449
 #define HCLK_OTG1		450
 #define HCLK_NANDC		453
+#define HCLK_SFC		454
 #define HCLK_SDMMC		456
 #define HCLK_SDIO		457
 #define HCLK_EMMC		459