From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/usb/host/ohci-hcd.c | 33 +++++++++++++++++++++++----------
1 files changed, 23 insertions(+), 10 deletions(-)
diff --git a/kernel/drivers/usb/host/ohci-hcd.c b/kernel/drivers/usb/host/ohci-hcd.c
index 5916235..73e13e7 100644
--- a/kernel/drivers/usb/host/ohci-hcd.c
+++ b/kernel/drivers/usb/host/ohci-hcd.c
@@ -16,7 +16,7 @@
* OHCI is the main "non-Intel/VIA" standard for USB 1.1 host controller
* interfaces (though some non-x86 Intel chips use it). It supports
* smarter hardware than UHCI. A download link for the spec available
- * through the http://www.usb.org website.
+ * through the https://www.usb.org website.
*
* This file is licenced under the GPL.
*/
@@ -40,6 +40,7 @@
#include <linux/dmapool.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>
+#include <linux/genalloc.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -384,7 +385,7 @@
ed_free (ohci, ed);
break;
}
- /* fall through */
+ fallthrough;
default:
/* caller was supposed to have unlinked any requests;
* that's not our job. can't recover; must leak ed.
@@ -456,7 +457,7 @@
struct usb_hcd *hcd = ohci_to_hcd(ohci);
/* Accept arbitrarily long scatter-gather lists */
- if (!(hcd->driver->flags & HCD_LOCAL_MEM))
+ if (!hcd->localmem_pool)
hcd->self.sg_tablesize = ~0;
if (distrust_firmware)
@@ -514,8 +515,15 @@
timer_setup(&ohci->io_watchdog, io_watchdog_func, 0);
ohci->prev_frame_no = IO_WATCHDOG_OFF;
- ohci->hcca = dma_alloc_coherent (hcd->self.controller,
- sizeof(*ohci->hcca), &ohci->hcca_dma, GFP_KERNEL);
+ if (hcd->localmem_pool)
+ ohci->hcca = gen_pool_dma_alloc_align(hcd->localmem_pool,
+ sizeof(*ohci->hcca),
+ &ohci->hcca_dma, 256);
+ else
+ ohci->hcca = dma_alloc_coherent(hcd->self.controller,
+ sizeof(*ohci->hcca),
+ &ohci->hcca_dma,
+ GFP_KERNEL);
if (!ohci->hcca)
return -ENOMEM;
@@ -1003,9 +1011,14 @@
remove_debug_files (ohci);
ohci_mem_cleanup (ohci);
if (ohci->hcca) {
- dma_free_coherent (hcd->self.controller,
- sizeof *ohci->hcca,
- ohci->hcca, ohci->hcca_dma);
+ if (hcd->localmem_pool)
+ gen_pool_free(hcd->localmem_pool,
+ (unsigned long)ohci->hcca,
+ sizeof(*ohci->hcca));
+ else
+ dma_free_coherent(hcd->self.controller,
+ sizeof(*ohci->hcca),
+ ohci->hcca, ohci->hcca_dma);
ohci->hcca = NULL;
ohci->hcca_dma = 0;
}
@@ -1042,7 +1055,7 @@
ed->ed_next = ohci->ed_rm_list;
ed->ed_prev = NULL;
ohci->ed_rm_list = ed;
- /* FALLTHROUGH */
+ fallthrough;
case ED_UNLINK:
break;
default:
@@ -1178,7 +1191,7 @@
* generic hardware linkage
*/
.irq = ohci_irq,
- .flags = HCD_MEMORY | HCD_USB11,
+ .flags = HCD_MEMORY | HCD_DMA | HCD_USB11,
/*
* basic lifecycle operations
--
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