ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA...

Doing so saves quite a bit of code in the driver.

For more information on the 'reserved-memory' bindings see:

  Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt

Suggested-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>

diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 7cd358b..33de736 100644 (file)
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -15,6 +15,36 @@
        #address-cells = <1>;
        #size-cells = <1>;
 
+       reserved-memory {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges;
+
+               gp0_reserved: rproc@40000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x40000000 0x01000000>;
+                       no-map;
+               };
+
+               gp1_reserved: rproc@41000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x41000000 0x01000000>;
+                       no-map;
+               };
+
+               audio_reserved: rproc@42000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x42000000 0x01000000>;
+                       no-map;
+               };
+
+               dmu_reserved: rproc@43000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x43000000 0x01000000>;
+                       no-map;
+               };
+       };
+
        cpus {
                #address-cells = <1>;
                #size-cells = <0>;
@@ -748,9 +778,9 @@
                        status          = "okay";
                };
 
-               st231_gp0: remote-processor@40000000 {
+               st231_gp0: remote-processor {
                        compatible      = "st,st231-rproc";
-                       reg             = <0x40000000 0x01000000>;
+                       memory-region   = <&gp0_reserved>;
                        resets          = <&softreset STIH407_ST231_GP0_SOFTRESET>;
                        reset-names     = "sw_reset";
                        clocks          = <&clk_s_c0_flexgen CLK_ST231_GP_0>;
@@ -758,9 +788,10 @@
                        st,syscfg       = <&syscfg_core 0x22c>;
                };
 
-               st231_gp1: remote-processor@41000000 {
+
+               st231_gp1: remote-processor {
                        compatible      = "st,st231-rproc";
-                       reg             = <0x41000000 0x01000000>;
+                       memory-region   = <&gp1_reserved>;
                        resets          = <&softreset STIH407_ST231_GP1_SOFTRESET>;
                        reset-names     = "sw_reset";
                        clocks          = <&clk_s_c0_flexgen CLK_ST231_GP_1>;
@@ -768,9 +799,9 @@
                        st,syscfg       = <&syscfg_core 0x220>;
                };
 
-               st231_audio: remote-processor@42000000 {
+               st231_audio: remote-processor {
                        compatible      = "st,st231-rproc";
-                       reg             = <0x42000000 0x01000000>;
+                       memory-region   = <&audio_reserved>;
                        resets          = <&softreset STIH407_ST231_AUD_SOFTRESET>;
                        reset-names     = "sw_reset";
                        clocks          = <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
@@ -778,9 +809,9 @@
                        st,syscfg       = <&syscfg_core 0x228>;
                };
 
-               st231_dmu: remote-processor@43000000 {
+               st231_dmu: remote-processor {
                        compatible      = "st,st231-rproc";
-                       reg             = <0x43000000 0x01000000>;
+                       memory-region   = <&dmu_reserved>;
                        resets          = <&softreset STIH407_ST231_DMU_SOFTRESET>;
                        reset-names     = "sw_reset";
                        clocks          = <&clk_s_c0_flexgen CLK_ST231_DMU>;