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freifunkist-firmware/target/linux/brcm2708/patches-4.14/950-0135-fiq_fsm-rewind-DMA...

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brcm2708: add kernel 4.14 support Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
6 years ago
From 3d0898f22d62dd7a05c39de9ea7e200689dc6c20 Mon Sep 17 00:00:00 2001
From: P33M <P33M@users.noreply.github.com>
Date: Fri, 24 Nov 2017 13:49:26 +0000
Subject: [PATCH 135/454] fiq_fsm: rewind DMA pointer for OUT transactions that
fail (#2288)
See: https://github.com/raspberrypi/linux/issues/2140
---
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
@@ -267,6 +267,15 @@ static void notrace fiq_fsm_reload_hctsi
}
/**
+ * fiq_fsm_reload_hcdma() - for OUT transactions, rewind DMA pointer
+ */
+static void notrace fiq_fsm_reload_hcdma(struct fiq_state *st, int n)
+{
+ hcdma_data_t hcdma = st->channel[n].hcdma_copy;
+ FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
+}
+
+/**
* fiq_iso_out_advance() - update DMA address and split position bits
* for isochronous OUT transactions.
*
@@ -827,11 +836,14 @@ static int notrace noinline fiq_fsm_do_h
fiq_fsm_setup_csplit(state, n);
} else if (hcint.b.nak) {
// No buffer space in TT. Retry on a uframe boundary.
+ fiq_fsm_reload_hcdma(state, n);
st->fsm = FIQ_NP_SSPLIT_RETRY;
handled = 1;
} else if (hcint.b.xacterr) {
// The only other one we care about is xacterr. This implies HS bus error - retry.
st->nr_errors++;
+ if(st->hcchar_copy.b.epdir == 0)
+ fiq_fsm_reload_hcdma(state, n);
st->fsm = FIQ_NP_SSPLIT_RETRY;
if (st->nr_errors >= 3) {
st->fsm = FIQ_NP_SPLIT_HS_ABORTED;