From: <nicolas.ferre@microchip.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Claudiu Beznea <claudiu.beznea@tuxon.dev>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Ryan Wanner <ryan.wanner@microchip.com>,
Cristian Birsan <cristian.birsan@microchip.com>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
<stable@vger.kernel.org>
Subject: [PATCH 1/2] ARM: dts: microchip: sama7d65: fix uart fifo size to 32
Date: Fri, 14 Nov 2025 11:33:12 +0100 [thread overview]
Message-ID: <20251114103313.20220-1-nicolas.ferre@microchip.com> (raw)
From: Nicolas Ferre <nicolas.ferre@microchip.com>
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 <nicolas.ferre@microchip.com>
---
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 = <AT91_USART_MODE_SERIAL>;
status = "disabled";
};
@@ -618,7 +618,7 @@ uart6: serial@200 {
clocks = <&pmc PMC_TYPE_PERIPHERAL 40>;
clock-names = "usart";
atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
- 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 = <AT91_USART_MODE_SERIAL>;
status = "disabled";
};
--
2.43.0
next reply other threads:[~2025-11-14 10:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-14 10:33 nicolas.ferre [this message]
2025-11-14 10:33 ` [PATCH 2/2] ARM: dts: microchip: sama7g5: " nicolas.ferre
2025-11-14 12:17 ` Claudiu Beznea
2025-11-14 12:16 ` [PATCH 1/2] ARM: dts: microchip: sama7d65: " Claudiu Beznea
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