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Date: Fri, 30 Oct 2020 14:38:38 +0100 From: Nicolas Ferre <nicolas.ferre@...rochip.com> To: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>, <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, Richard Genoud <richard.genoud@...il.com>, Lee Jones <lee.jones@...aro.org> CC: <alexandre.belloni@...tlin.com>, <ludovic.desroches@...rochip.com> Subject: Re: [PATCH] ARM: dts: at91: add serial MFD sub-node for usart On 30/10/2020 at 12:07, Codrin Ciubotariu wrote: > The "atmel,at91sam9260-usart" driver is a MFD driver, so it needs sub-nodes > to match the registered platform device. For this reason, we add a serial > subnode to all the "atmel,at91sam9260-usart" serial compatible nods. This > will also remove the boot warning: > "atmel_usart_serial: Failed to locate of_node [id: -2]" I don't remember this warning was raised previously even if the MFD driver was added a while ago (Sept. 2018). I would say it's due to 466a62d7642f ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes") which was added on mid August and corrected with 22380b65dc70 ("mfd: mfd-core: Ensure disabled devices are ignored without error") but maybe not covering our case. So, well, I don't know what's the best option to this change. Moreover, I would say that all other USART related properties go into the child not if there is a need for one. Lee, I suspect that we're not the only ones experiencing this ugly warning during the boot log: can you point us out how to deal with it for our existing atmel_serial.c users? Best regards, Nicolas > Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com> > --- > arch/arm/boot/dts/at91-sam9x60ek.dts | 3 +++ > arch/arm/boot/dts/at91rm9200.dtsi | 15 ++++++++++++ > arch/arm/boot/dts/at91sam9261.dtsi | 12 ++++++++++ > arch/arm/boot/dts/at91sam9261ek.dts | 3 +++ > arch/arm/boot/dts/at91sam9263.dtsi | 12 ++++++++++ > arch/arm/boot/dts/at91sam9g45.dtsi | 15 ++++++++++++ > arch/arm/boot/dts/at91sam9n12.dtsi | 15 ++++++++++++ > arch/arm/boot/dts/at91sam9rl.dtsi | 15 ++++++++++++ > arch/arm/boot/dts/at91sam9x5.dtsi | 18 ++++++++++++++ > arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 3 +++ > arch/arm/boot/dts/sam9x60.dtsi | 3 +++ > arch/arm/boot/dts/sama5d2.dtsi | 30 ++++++++++++++++++++++++ > arch/arm/boot/dts/sama5d3.dtsi | 18 ++++++++++++++ > arch/arm/boot/dts/sama5d3_uart.dtsi | 6 +++++ > arch/arm/boot/dts/sama5d4.dtsi | 30 ++++++++++++++++++++++++ > 15 files changed, 198 insertions(+) > > diff --git a/arch/arm/boot/dts/at91-sam9x60ek.dts b/arch/arm/boot/dts/at91-sam9x60ek.dts > index eae28b82c7fd..e317531f7363 100644 > --- a/arch/arm/boot/dts/at91-sam9x60ek.dts > +++ b/arch/arm/boot/dts/at91-sam9x60ek.dts > @@ -280,6 +280,9 @@ AT91_XDMAC_DT_PERID(10))>, > atmel,use-dma-rx; > atmel,use-dma-tx; > status = "okay"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > }; > > diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi > index d1181ead18e5..2abb646f6b68 100644 > --- a/arch/arm/boot/dts/at91rm9200.dtsi > +++ b/arch/arm/boot/dts/at91rm9200.dtsi > @@ -602,6 +602,9 @@ dbgu: serial@...ff200 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart0: serial@...c0000 { > @@ -615,6 +618,9 @@ usart0: serial@...c0000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...c4000 { > @@ -628,6 +634,9 @@ usart1: serial@...c4000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...c8000 { > @@ -641,6 +650,9 @@ usart2: serial@...c8000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...cc000 { > @@ -654,6 +666,9 @@ usart3: serial@...cc000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 9>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usb1: gadget@...b0000 { > diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi > index 7adc36ca8a46..e9602378f92c 100644 > --- a/arch/arm/boot/dts/at91sam9261.dtsi > +++ b/arch/arm/boot/dts/at91sam9261.dtsi > @@ -187,6 +187,9 @@ usart0: serial@...b0000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...b4000 { > @@ -200,6 +203,9 @@ usart1: serial@...b4000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...b8000{ > @@ -213,6 +219,9 @@ usart2: serial@...b8000{ > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc0: ssc@...bc000 { > @@ -307,6 +316,9 @@ dbgu: serial@...ff200 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > pinctrl@...ff400 { > diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts > index beed819609e8..fae5d408268d 100644 > --- a/arch/arm/boot/dts/at91sam9261ek.dts > +++ b/arch/arm/boot/dts/at91sam9261ek.dts > @@ -176,6 +176,9 @@ tsc2046@2 { > > dbgu: serial@...ff200 { > status = "okay"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > watchdog@...ffd40 { > diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi > index fe45d96239c9..e4d370b582c8 100644 > --- a/arch/arm/boot/dts/at91sam9263.dtsi > +++ b/arch/arm/boot/dts/at91sam9263.dtsi > @@ -546,6 +546,9 @@ dbgu: serial@...fee00 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart0: serial@...8c000 { > @@ -559,6 +562,9 @@ usart0: serial@...8c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...90000 { > @@ -572,6 +578,9 @@ usart1: serial@...90000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...94000 { > @@ -585,6 +594,9 @@ usart2: serial@...94000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 9>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc0: ssc@...98000 { > diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi > index 19fc748a87c5..8aad026f10ec 100644 > --- a/arch/arm/boot/dts/at91sam9g45.dtsi > +++ b/arch/arm/boot/dts/at91sam9g45.dtsi > @@ -682,6 +682,9 @@ dbgu: serial@...fee00 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart0: serial@...8c000 { > @@ -695,6 +698,9 @@ usart0: serial@...8c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...90000 { > @@ -708,6 +714,9 @@ usart1: serial@...90000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...94000 { > @@ -721,6 +730,9 @@ usart2: serial@...94000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 9>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...98000 { > @@ -734,6 +746,9 @@ usart3: serial@...98000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 10>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > macb0: ethernet@...bc000 { > diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi > index 0785389f5507..f83d1a313edf 100644 > --- a/arch/arm/boot/dts/at91sam9n12.dtsi > +++ b/arch/arm/boot/dts/at91sam9n12.dtsi > @@ -599,6 +599,9 @@ dbgu: serial@...ff200 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc0: ssc@...10000 { > @@ -624,6 +627,9 @@ usart0: serial@...1c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 5>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...20000 { > @@ -635,6 +641,9 @@ usart1: serial@...20000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...24000 { > @@ -646,6 +655,9 @@ usart2: serial@...24000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...28000 { > @@ -657,6 +669,9 @@ usart3: serial@...28000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > i2c0: i2c@...10000 { > diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi > index 5653e70c84b4..5480b6542c6a 100644 > --- a/arch/arm/boot/dts/at91sam9rl.dtsi > +++ b/arch/arm/boot/dts/at91sam9rl.dtsi > @@ -183,6 +183,9 @@ usart0: serial@...b0000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...b4000 { > @@ -196,6 +199,9 @@ usart1: serial@...b4000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...b8000 { > @@ -209,6 +215,9 @@ usart2: serial@...b8000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...bc000 { > @@ -222,6 +231,9 @@ usart3: serial@...bc000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 9>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc0: ssc@...c0000 { > @@ -353,6 +365,9 @@ dbgu: serial@...ff200 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > pinctrl@...ff400 { > diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi > index 4cdb05079cc7..52aa49b007d1 100644 > --- a/arch/arm/boot/dts/at91sam9x5.dtsi > +++ b/arch/arm/boot/dts/at91sam9x5.dtsi > @@ -683,6 +683,9 @@ dbgu: serial@...ff200 { > clocks = <&pmc PMC_TYPE_CORE PMC_MCK>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart0: serial@...1c000 { > @@ -697,6 +700,9 @@ usart0: serial@...1c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 5>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...20000 { > @@ -711,6 +717,9 @@ usart1: serial@...20000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...24000 { > @@ -725,6 +734,9 @@ usart2: serial@...24000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > i2c0: i2c@...10000 { > @@ -781,6 +793,9 @@ uart0: serial@...40000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 15>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart1: serial@...44000 { > @@ -792,6 +807,9 @@ uart1: serial@...44000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 16>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > adc0: adc@...4c000 { > diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi > index 098d3fef5c37..a80593188ac1 100644 > --- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi > +++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi > @@ -53,6 +53,9 @@ usart3: serial@...28000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 8>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > }; > }; > diff --git a/arch/arm/boot/dts/sam9x60.dtsi b/arch/arm/boot/dts/sam9x60.dtsi > index 84066c1298df..ab4d80134d86 100644 > --- a/arch/arm/boot/dts/sam9x60.dtsi > +++ b/arch/arm/boot/dts/sam9x60.dtsi > @@ -598,6 +598,9 @@ AT91_XDMAC_DT_PERID(28))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 47>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > pinctrl: pinctrl@...ff400 { > diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi > index 2ddc85dff8ce..26f231147d21 100644 > --- a/arch/arm/boot/dts/sama5d2.dtsi > +++ b/arch/arm/boot/dts/sama5d2.dtsi > @@ -444,6 +444,9 @@ AT91_XDMAC_DT_PERID(35))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 24>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart1: serial@...20000 { > @@ -460,6 +463,9 @@ AT91_XDMAC_DT_PERID(37))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 25>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart2: serial@...24000 { > @@ -476,6 +482,9 @@ AT91_XDMAC_DT_PERID(39))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 26>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > i2c0: i2c@...28000 { > @@ -536,6 +545,9 @@ AT91_XDMAC_DT_PER_IF(1) | > dma-names = "tx", "rx"; > atmel,fifo-size = <32>; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi2: spi@400 { > @@ -606,6 +618,9 @@ AT91_XDMAC_DT_PER_IF(1) | > dma-names = "tx", "rx"; > atmel,fifo-size = <32>; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi3: spi@400 { > @@ -771,6 +786,9 @@ AT91_XDMAC_DT_PERID(41))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 27>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart4: serial@...0c000 { > @@ -787,6 +805,9 @@ AT91_XDMAC_DT_PERID(43))>, > clocks = <&pmc PMC_TYPE_PERIPHERAL 28>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > flx2: flexcom@...10000 { > @@ -815,6 +836,9 @@ AT91_XDMAC_DT_PER_IF(1) | > dma-names = "tx", "rx"; > atmel,fifo-size = <32>; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi4: spi@400 { > @@ -885,6 +909,9 @@ AT91_XDMAC_DT_PER_IF(1) | > dma-names = "tx", "rx"; > atmel,fifo-size = <32>; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi5: spi@400 { > @@ -956,6 +983,9 @@ AT91_XDMAC_DT_PER_IF(1) | > dma-names = "tx", "rx"; > atmel,fifo-size = <32>; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi6: spi@400 { > diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi > index 86137f8d2b45..1791de52d1c3 100644 > --- a/arch/arm/boot/dts/sama5d3.dtsi > +++ b/arch/arm/boot/dts/sama5d3.dtsi > @@ -203,6 +203,9 @@ usart0: serial@...1c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 12>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...20000 { > @@ -217,6 +220,9 @@ usart1: serial@...20000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 13>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart0: serial@...24000 { > @@ -228,6 +234,9 @@ uart0: serial@...24000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 16>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > pwm0: pwm@...2c000 { > @@ -389,6 +398,9 @@ usart2: serial@...20000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 14>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...24000 { > @@ -403,6 +415,9 @@ usart3: serial@...24000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 15>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > sha@...34000 { > @@ -497,6 +512,9 @@ dbgu: serial@...fee00 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 2>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > aic: interrupt-controller@...ff000 { > diff --git a/arch/arm/boot/dts/sama5d3_uart.dtsi b/arch/arm/boot/dts/sama5d3_uart.dtsi > index a3eaba995cf4..b9f83b771a09 100644 > --- a/arch/arm/boot/dts/sama5d3_uart.dtsi > +++ b/arch/arm/boot/dts/sama5d3_uart.dtsi > @@ -45,6 +45,9 @@ uart0: serial@...24000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 16>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > uart1: serial@...28000 { > @@ -56,6 +59,9 @@ uart1: serial@...28000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 17>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > }; > }; > diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi > index 04f24cf752d3..0627fa8cdaf4 100644 > --- a/arch/arm/boot/dts/sama5d4.dtsi > +++ b/arch/arm/boot/dts/sama5d4.dtsi > @@ -284,6 +284,9 @@ uart0: serial@...04000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 27>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc0: ssc@...08000 { > @@ -443,6 +446,9 @@ usart0: serial@...2c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 6>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart1: serial@...30000 { > @@ -461,6 +467,9 @@ usart1: serial@...30000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 7>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > mmc1: mmc@...00000 { > @@ -496,6 +505,9 @@ uart1: serial@...04000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 28>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart2: serial@...08000 { > @@ -514,6 +526,9 @@ usart2: serial@...08000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 29>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart3: serial@...0c000 { > @@ -532,6 +547,9 @@ usart3: serial@...0c000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 30>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > usart4: serial@...10000 { > @@ -550,6 +568,9 @@ usart4: serial@...10000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 31>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > ssc1: ssc@...14000 { > @@ -568,6 +589,9 @@ ssc1: ssc@...14000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 49>; > clock-names = "pclk"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi1: spi@...18000 { > @@ -588,6 +612,9 @@ spi1: spi@...18000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 38>; > clock-names = "spi_clk"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > spi2: spi@...1c000 { > @@ -794,6 +821,9 @@ dbgu: serial@...69000 { > clocks = <&pmc PMC_TYPE_PERIPHERAL 45>; > clock-names = "usart"; > status = "disabled"; > + serial { > + compatible = "atmel,at91rm9200-usart-serial"; > + }; > }; > > > -- Nicolas Ferre
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