arm64: dts: exynos7885: add specific compatibles to several blocks

Exynos7885 reuses several devices from older designs, thus historically
we kept the old (block's) compatible only.  This works fine and there is
no bug here, however guidelines expressed in
Documentation/devicetree/bindings/writing-bindings.rst state that:
1. Compatibles should be specific.
2. We should add new compatibles in case of bugs or features.

Add compatibles specific to Exynos7885 in front of all old-SoC-like
compatibles.  This will also help reviews of new code using existing
DTS as template.  No functional impact on Linux drivers behavior.

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20231108104343.24192-16-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/arch/arm64/boot/dts/exynos/exynos7885.dtsi b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
index d69fc2392bd0e37842109865f226925d7ac4d602..008228fb319a90e5b9561ac1a04fab3d7a95c536 100644 (file)
--- a/arch/arm64/boot/dts/exynos/exynos7885.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7885.dtsi
@@ -172,7 +172,8 @@
                ranges = <0x0 0x0 0x0 0x20000000>;
 
                chipid@10000000 {
-                       compatible = "samsung,exynos850-chipid";
+                       compatible = "samsung,exynos7885-chipid",
+                                    "samsung,exynos850-chipid";
                        reg = <0x10000000 0x24>;
                };
 
@@ -264,7 +265,8 @@
                        reg = <0x11cb0000 0x1000>;
 
                        wakeup-interrupt-controller {
-                               compatible = "samsung,exynos7-wakeup-eint";
+                               compatible = "samsung,exynos7885-wakeup-eint",
+                                            "samsung,exynos7-wakeup-eint";
                                interrupt-parent = <&gic>;
                                interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
                        };
@@ -289,12 +291,14 @@
                };
 
                pmu_system_controller: system-controller@11c80000 {
-                       compatible = "samsung,exynos7-pmu", "syscon";
+                       compatible = "samsung,exynos7885-pmu",
+                                    "samsung,exynos7-pmu", "syscon";
                        reg = <0x11c80000 0x10000>;
                };
 
                mmc_0: mmc@13500000 {
-                       compatible = "samsung,exynos7-dw-mshc-smu";
+                       compatible = "samsung,exynos7885-dw-mshc-smu",
+                                    "samsung,exynos7-dw-mshc-smu";
                        reg = <0x13500000 0x2000>;
                        interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -307,7 +311,8 @@
                };
 
                serial_0: serial@13800000 {
-                       compatible = "samsung,exynos5433-uart";
+                       compatible = "samsung,exynos7885-uart",
+                                    "samsung,exynos5433-uart";
                        reg = <0x13800000 0x100>;
                        interrupts = <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
@@ -320,7 +325,8 @@
                };
 
                serial_1: serial@13810000 {
-                       compatible = "samsung,exynos5433-uart";
+                       compatible = "samsung,exynos7885-uart",
+                                    "samsung,exynos5433-uart";
                        reg = <0x13810000 0x100>;
                        interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
@@ -333,7 +339,8 @@
                };
 
                serial_2: serial@13820000 {
-                       compatible = "samsung,exynos5433-uart";
+                       compatible = "samsung,exynos7885-uart",
+                                    "samsung,exynos5433-uart";
                        reg = <0x13820000 0x100>;
                        interrupts = <GIC_SPI 279 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
@@ -346,7 +353,8 @@
                };
 
                i2c_0: i2c@13830000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13830000 0x100>;
                        interrupts = <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -359,7 +367,8 @@
                };
 
                i2c_1: i2c@13840000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13840000 0x100>;
                        interrupts = <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -372,7 +381,8 @@
                };
 
                i2c_2: i2c@13850000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13850000 0x100>;
                        interrupts = <GIC_SPI 250 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -385,7 +395,8 @@
                };
 
                i2c_3: i2c@13860000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13860000 0x100>;
                        interrupts = <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -398,7 +409,8 @@
                };
 
                i2c_4: i2c@13870000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13870000 0x100>;
                        interrupts = <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -411,7 +423,8 @@
                };
 
                i2c_5: i2c@13880000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13880000 0x100>;
                        interrupts = <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -424,7 +437,8 @@
                };
 
                i2c_6: i2c@13890000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x13890000 0x100>;
                        interrupts = <GIC_SPI 254 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;
@@ -437,7 +451,8 @@
                };
 
                i2c_7: i2c@11cd0000 {
-                       compatible = "samsung,s3c2440-i2c";
+                       compatible = "samsung,exynos7885-i2c",
+                                    "samsung,s3c2440-i2c";
                        reg = <0x11cd0000 0x100>;
                        interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
                        #address-cells = <1>;