From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/drivers/spi/spi-fsl-cpm.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/spi/spi-fsl-cpm.c b/kernel/drivers/spi/spi-fsl-cpm.c
index ee90588..7832ce3 100644
--- a/kernel/drivers/spi/spi-fsl-cpm.c
+++ b/kernel/drivers/spi/spi-fsl-cpm.c
@@ -21,6 +21,7 @@
#include <linux/spi/spi.h>
#include <linux/types.h>
#include <linux/platform_device.h>
+#include <linux/byteorder/generic.h>
#include "spi-fsl-cpm.h"
#include "spi-fsl-lib.h"
@@ -120,6 +121,21 @@
mspi->rx_dma = mspi->dma_dummy_rx;
mspi->map_rx_dma = 0;
}
+ if (t->bits_per_word == 16 && t->tx_buf) {
+ const u16 *src = t->tx_buf;
+ u16 *dst;
+ int i;
+
+ dst = kmalloc(t->len, GFP_KERNEL);
+ if (!dst)
+ return -ENOMEM;
+
+ for (i = 0; i < t->len >> 1; i++)
+ dst[i] = cpu_to_le16p(src + i);
+
+ mspi->tx = dst;
+ mspi->map_tx_dma = 1;
+ }
if (mspi->map_tx_dma) {
void *nonconst_tx = (void *)mspi->tx; /* shut up gcc */
@@ -173,6 +189,13 @@
if (mspi->map_rx_dma)
dma_unmap_single(dev, mspi->rx_dma, t->len, DMA_FROM_DEVICE);
mspi->xfer_in_progress = NULL;
+
+ if (t->bits_per_word == 16 && t->rx_buf) {
+ int i;
+
+ for (i = 0; i < t->len; i += 2)
+ le16_to_cpus(t->rx_buf + i);
+ }
}
EXPORT_SYMBOL_GPL(fsl_spi_cpm_bufs_complete);
--
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