615d6f0ebe
- enable OMAP 3430 SoC features - enable drivers for N900 peripherals [ci:skip-build]: Already built successfully in CI
45 lines
1.4 KiB
Diff
45 lines
1.4 KiB
Diff
From 912d41160ee66ae498a06c61ab1ea8ac1341faeb Mon Sep 17 00:00:00 2001
|
|
From: "Sicelo A. Mhlongo" <absicsz@gmail.com>
|
|
Date: Mon, 13 Mar 2023 22:21:40 +0200
|
|
Subject: [PATCH] hsi: ssi_port: force pio path
|
|
|
|
The SSI modem in Nokia N900 has never worked with DMA mode, but in recent
|
|
kernels, it somehow always chooses to use DMA. Force it to use the working and
|
|
tested PIO path.
|
|
|
|
---
|
|
drivers/hsi/controllers/omap_ssi_port.c | 8 ++++----
|
|
1 file changed, 4 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
|
|
index b9495b720f1b..3adbe75f85cc 100644
|
|
--- a/drivers/hsi/controllers/omap_ssi_port.c
|
|
+++ b/drivers/hsi/controllers/omap_ssi_port.c
|
|
@@ -320,19 +320,19 @@ static int ssi_start_pio(struct hsi_msg *msg)
|
|
static int ssi_start_transfer(struct list_head *queue)
|
|
{
|
|
struct hsi_msg *msg;
|
|
- int lch = -1;
|
|
+ /* int lch = -1; */
|
|
|
|
if (list_empty(queue))
|
|
return 0;
|
|
msg = list_first_entry(queue, struct hsi_msg, link);
|
|
if (msg->status != HSI_STATUS_QUEUED)
|
|
return 0;
|
|
- if ((msg->sgt.nents) && (msg->sgt.sgl->length > sizeof(u32)))
|
|
+ /* if ((msg->sgt.nents) && (msg->sgt.sgl->length > sizeof(u32)))
|
|
lch = ssi_claim_lch(msg);
|
|
if (lch >= 0)
|
|
return ssi_start_dma(msg, lch);
|
|
- else
|
|
- return ssi_start_pio(msg);
|
|
+ else */
|
|
+ return ssi_start_pio(msg);
|
|
}
|
|
|
|
static int ssi_async_break(struct hsi_msg *msg)
|
|
--
|
|
2.39.2
|
|
|