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added patch 18 to add SPI DMA declaration in dtsi

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Vincent-FK 2019-11-05 18:57:49 +01:00
parent 2cbc14b81b
commit c9874af5aa
1 changed files with 55 additions and 0 deletions
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FunKey/board/funkey/patches/linux/0018_SPI_DMA_in_dtsi.patch Normal file
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@ -0,0 +1,55 @@
From 3b489a63e4e05489411a032cb60d8939a81f14b7 Mon Sep 17 00:00:00 2001
From: vincent <vbusoenseirb@gmail.com>
Date: Tue, 5 Nov 2019 18:53:47 +0100
Subject: [PATCH] added SPI DMA declaration in device tree and bigger tx_buf
size in fbtft (1 byte more to support start byte)
---
arch/arm/boot/dts/sun8i-v3s-funkey.dts | 3 ++-
arch/arm/boot/dts/sun8i-v3s.dtsi | 2 ++
drivers/staging/fbtft/fbtft-core.c | 2 +-
3 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/sun8i-v3s-funkey.dts b/arch/arm/boot/dts/sun8i-v3s-funkey.dts
index 78f4d6a..19062fc 100644
--- a/arch/arm/boot/dts/sun8i-v3s-funkey.dts
+++ b/arch/arm/boot/dts/sun8i-v3s-funkey.dts
@@ -176,7 +176,8 @@
compatible = "sitronix,st7789v";
reg = <0>;
spi-max-frequency = <50000000>;
- txbuflen = <115200>;
+ txbuflen = <115202>;
+// txbuflen = <0>;
rotate = <0>;
fps = <50>;
buswidth = <8>;
diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 02f6c84..f5ca5a5 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -539,6 +539,8 @@
interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
clock-names = "ahb", "mod";
+ dmas = <&dma 23>, <&dma 23>;
+ dma-names = "rx", "tx";
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
resets = <&ccu RST_BUS_SPI0>;
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 7fbf92e..7dce967 100755
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -840,7 +840,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
/* Transmit buffer */
if (txbuflen == -1)
txbuflen = vmem_size + 2; /* add in case startbyte is used */
- if (txbuflen >= vmem_size + 2)
+ if (txbuflen > vmem_size + 2)
txbuflen = 0;
#ifdef __LITTLE_ENDIAN
--
1.9.1