From 1f591be0a02c697f65a21be35f1d74117bbf4be2 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 14 Nov 2025 11:33:12 +0100 Subject: [PATCH 1/3] ARM: dts: microchip: sama7d65: fix uart fifo size to 32 On some flexcom nodes related to uart, the fifo sizes were wrong: fix them to 32 data. Note that product datasheet is being reviewed to fix inconsistency, but this value is validated by product's designers. Fixes: 261dcfad1b59 ("ARM: dts: microchip: add sama7d65 SoC DT") Fixes: b51e4aea3ecf ("ARM: dts: microchip: sama7d65: Add FLEXCOMs to sama7d65 SoC") Cc: stable@vger.kernel.org # 6.16+ Signed-off-by: Nicolas Ferre Link: https://lore.kernel.org/r/20251114103313.20220-1-nicolas.ferre@microchip.com Signed-off-by: Claudiu Beznea --- arch/arm/boot/dts/microchip/sama7d65.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi index e53e2dd6d530..cd2cf9a6f40b 100644 --- a/arch/arm/boot/dts/microchip/sama7d65.dtsi +++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi @@ -557,7 +557,7 @@ uart4: serial@200 { dma-names = "tx", "rx"; atmel,use-dma-rx; atmel,use-dma-tx; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; atmel,usart-mode = ; status = "disabled"; }; @@ -618,7 +618,7 @@ uart6: serial@200 { clocks = <&pmc PMC_TYPE_PERIPHERAL 40>; clock-names = "usart"; atmel,usart-mode = ; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; }; @@ -643,7 +643,7 @@ uart7: serial@200 { dma-names = "tx", "rx"; atmel,use-dma-rx; atmel,use-dma-tx; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; atmel,usart-mode = ; status = "disabled"; }; From 5654889a94b0de5ad6ceae3793e7f5e0b61b50b6 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 14 Nov 2025 11:33:13 +0100 Subject: [PATCH 2/3] ARM: dts: microchip: sama7g5: fix uart fifo size to 32 On some flexcom nodes related to uart, the fifo sizes were wrong: fix them to 32 data. Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Cc: stable@vger.kernel.org # 5.15+ Signed-off-by: Nicolas Ferre Link: https://lore.kernel.org/r/20251114103313.20220-2-nicolas.ferre@microchip.com Signed-off-by: Claudiu Beznea --- arch/arm/boot/dts/microchip/sama7g5.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi index 381cbcfcb34a..03ef3d9aaeec 100644 --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi @@ -824,7 +824,7 @@ uart4: serial@200 { dma-names = "tx", "rx"; atmel,use-dma-rx; atmel,use-dma-tx; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; }; @@ -850,7 +850,7 @@ uart7: serial@200 { dma-names = "tx", "rx"; atmel,use-dma-rx; atmel,use-dma-tx; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; }; From 7d5864dc5d5ea6a35983dd05295fb17f2f2f44ce Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 14 Nov 2025 15:02:25 +0100 Subject: [PATCH 3/3] ARM: dts: microchip: sama5d2: fix spi flexcom fifo size to 32 Unlike standalone spi peripherals, on sama5d2, the flexcom spi have fifo size of 32 data. Fix flexcom/spi nodes where this property is wrong. Fixes: 6b9a3584c7ed ("ARM: dts: at91: sama5d2: Add missing flexcom definitions") Cc: stable@vger.kernel.org # 5.8+ Signed-off-by: Nicolas Ferre Link: https://lore.kernel.org/r/20251114140225.30372-1-nicolas.ferre@microchip.com Signed-off-by: Claudiu Beznea --- arch/arm/boot/dts/microchip/sama5d2.dtsi | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/microchip/sama5d2.dtsi b/arch/arm/boot/dts/microchip/sama5d2.dtsi index 17430d7f2055..fde890f18d20 100644 --- a/arch/arm/boot/dts/microchip/sama5d2.dtsi +++ b/arch/arm/boot/dts/microchip/sama5d2.dtsi @@ -571,7 +571,7 @@ AT91_XDMAC_DT_PERID(11))>, AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(12))>; dma-names = "tx", "rx"; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; @@ -642,7 +642,7 @@ AT91_XDMAC_DT_PERID(13))>, AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(14))>; dma-names = "tx", "rx"; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; @@ -854,7 +854,7 @@ AT91_XDMAC_DT_PERID(15))>, AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(16))>; dma-names = "tx", "rx"; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; @@ -925,7 +925,7 @@ AT91_XDMAC_DT_PERID(17))>, AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(18))>; dma-names = "tx", "rx"; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; }; @@ -997,7 +997,7 @@ AT91_XDMAC_DT_PERID(19))>, AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(20))>; dma-names = "tx", "rx"; - atmel,fifo-size = <16>; + atmel,fifo-size = <32>; status = "disabled"; };