Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 32 insertions, 27 deletions

diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 5ab5bb89bae3..149f3f310a0a 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -236,7 +236,7 @@ static int cppi_controller_stop(struct dma_controller *c)
         musb_writel(tibase, DAVINCI_RXCPPI_INTCLR_REG,
                         DAVINCI_DMA_ALL_CHANNELS_ENABLE);
 
-        DBG(1, "Tearing down RX and TX Channels\n");
+        dev_dbg(musb->controller, "Tearing down RX and TX Channels\n");
         for (i = 0; i < ARRAY_SIZE(controller->tx); i++) {
                 /* FIXME restructure of txdma to use bds like rxdma */
                 controller->tx[i].last_processed = NULL;
@@ -301,13 +301,13 @@ cppi_channel_allocate(struct dma_controller *c,
          */
         if (transmit) {
                 if (index >= ARRAY_SIZE(controller->tx)) {
-                        DBG(1, "no %cX%d CPPI channel\n", 'T', index);
+                        dev_dbg(musb->controller, "no %cX%d CPPI channel\n", 'T', index);
                         return NULL;
                 }
                 cppi_ch = controller->tx + index;
         } else {
                 if (index >= ARRAY_SIZE(controller->rx)) {
-                        DBG(1, "no %cX%d CPPI channel\n", 'R', index);
+                        dev_dbg(musb->controller, "no %cX%d CPPI channel\n", 'R', index);
                         return NULL;
                 }
                 cppi_ch = controller->rx + index;
@@ -318,13 +318,13 @@ cppi_channel_allocate(struct dma_controller *c,
          * with the other DMA engine too
          */
         if (cppi_ch->hw_ep)
-                DBG(1, "re-allocating DMA%d %cX channel %p\n",
+                dev_dbg(musb->controller, "re-allocating DMA%d %cX channel %p\n",
                                 index, transmit ? 'T' : 'R', cppi_ch);
         cppi_ch->hw_ep = ep;
         cppi_ch->channel.status = MUSB_DMA_STATUS_FREE;
         cppi_ch->channel.max_len = 0x7fffffff;
 
-        DBG(4, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R');
+        dev_dbg(musb->controller, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R');
         return &cppi_ch->channel;
 }
 
@@ -339,7 +339,7 @@ static void cppi_channel_release(struct dma_channel *channel)
         c = container_of(channel, struct cppi_channel, channel);
         tibase = c->controller->tibase;
         if (!c->hw_ep)
-                DBG(1, "releasing idle DMA channel %p\n", c);
+                dev_dbg(musb->controller, "releasing idle DMA channel %p\n", c);
         else if (!c->transmit)
                 core_rxirq_enable(tibase, c->index + 1);
 
@@ -597,12 +597,12 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx)
                 length = min(n_bds * maxpacket, length);
         }
 
-        DBG(4, "TX DMA%d, pktSz %d %s bds %d dma 0x%x len %u\n",
+        dev_dbg(musb->controller, "TX DMA%d, pktSz %d %s bds %d dma 0x%llx len %u\n",
                         tx->index,
                         maxpacket,
                         rndis ? "rndis" : "transparent",
                         n_bds,
-                        addr, length);
+                        (unsigned long long)addr, length);
 
         cppi_rndis_update(tx, 0, musb->ctrl_base, rndis);
 
@@ -654,7 +654,7 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx)
                                 bd->hw_options |= CPPI_ZERO_SET;
                 }
 
-                DBG(5, "TXBD %p: nxt %08x buf %08x len %04x opt %08x\n",
+                dev_dbg(musb->controller, "TXBD %p: nxt %08x buf %08x len %04x opt %08x\n",
                                 bd, bd->hw_next, bd->hw_bufp,
                                 bd->hw_off_len, bd->hw_options);
 
@@ -819,8 +819,8 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket)
 
         length = min(n_bds * maxpacket, length);
 
-        DBG(4, "RX DMA%d seg, maxp %d %s bds %d (cnt %d) "
-                        "dma 0x%x len %u %u/%u\n",
+        dev_dbg(musb->controller, "RX DMA%d seg, maxp %d %s bds %d (cnt %d) "
+                        "dma 0x%llx len %u %u/%u\n",
                         rx->index, maxpacket,
                         onepacket
                                 ? (is_rndis ? "rndis" : "onepacket")
@@ -829,7 +829,8 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket)
                         musb_readl(tibase,
                                 DAVINCI_RXCPPI_BUFCNT0_REG + (rx->index * 4))
                                         & 0xffff,
-                        addr, length, rx->channel.actual_len, rx->buf_len);
+                        (unsigned long long)addr, length,
+                        rx->channel.actual_len, rx->buf_len);
 
         /* only queue one segment at a time, since the hardware prevents
          * correct queue shutdown after unexpected short packets
@@ -935,7 +936,7 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket)
                         DAVINCI_RXCPPI_BUFCNT0_REG + (rx->index * 4))
                         & 0xffff;
         if (i < (2 + n_bds)) {
-                DBG(2, "bufcnt%d underrun - %d (for %d)\n",
+                dev_dbg(musb->controller, "bufcnt%d underrun - %d (for %d)\n",
                                         rx->index, i, n_bds);
                 musb_writel(tibase,
                         DAVINCI_RXCPPI_BUFCNT0_REG + (rx->index * 4),
@@ -984,7 +985,7 @@ static int cppi_channel_program(struct dma_channel *ch,
                 /* WARN_ON(1); */
                 break;
         case MUSB_DMA_STATUS_UNKNOWN:
-                DBG(1, "%cX DMA%d not allocated!\n",
+                dev_dbg(musb->controller, "%cX DMA%d not allocated!\n",
                                 cppi_ch->transmit ? 'T' : 'R',
                                 cppi_ch->index);
                 /* FALLTHROUGH */
@@ -1039,9 +1040,9 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
                 if (!completed && (bd->hw_options & CPPI_OWN_SET))
                         break;
 
-                DBG(5, "C/RXBD %08x: nxt %08x buf %08x "
+                dev_dbg(musb->controller, "C/RXBD %llx: nxt %08x buf %08x "
                         "off.len %08x opt.len %08x (%d)\n",
-                        bd->dma, bd->hw_next, bd->hw_bufp,
+                        (unsigned long long)bd->dma, bd->hw_next, bd->hw_bufp,
                         bd->hw_off_len, bd->hw_options,
                         rx->channel.actual_len);
 
@@ -1061,7 +1062,7 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
                          * CPPI ignores those BDs even though OWN is still set.
                          */
                         completed = true;
-                        DBG(3, "rx short %d/%d (%d)\n",
+                        dev_dbg(musb->controller, "rx short %d/%d (%d)\n",
                                         len, bd->buflen,
                                         rx->channel.actual_len);
                 }
@@ -1111,11 +1112,12 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
                 musb_ep_select(cppi->mregs, rx->index + 1);
                 csr = musb_readw(regs, MUSB_RXCSR);
                 if (csr & MUSB_RXCSR_DMAENAB) {
-                        DBG(4, "list%d %p/%p, last %08x%s, csr %04x\n",
+                        dev_dbg(musb->controller, "list%d %p/%p, last %llx%s, csr %04x\n",
                                 rx->index,
                                 rx->head, rx->tail,
                                 rx->last_processed
-                                        ? rx->last_processed->dma
+                                        ? (unsigned long long)
+                                                rx->last_processed->dma
                                         : 0,
                                 completed ? ", completed" : "",
                                 csr);
@@ -1156,7 +1158,7 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
         struct musb_hw_ep       *hw_ep = NULL;
         u32                     rx, tx;
         int                     i, index;
-        unsigned long           flags;
+        unsigned long           uninitialized_var(flags);
 
         cppi = container_of(musb->dma_controller, struct cppi, controller);
         if (cppi->irq)
@@ -1167,10 +1169,13 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
         tx = musb_readl(tibase, DAVINCI_TXCPPI_MASKED_REG);
         rx = musb_readl(tibase, DAVINCI_RXCPPI_MASKED_REG);
 
-        if (!tx && !rx)
+        if (!tx && !rx) {
+                if (cppi->irq)
+                        spin_unlock_irqrestore(&musb->lock, flags);
                 return IRQ_NONE;
+        }
 
-        DBG(4, "CPPI IRQ Tx%x Rx%x\n", tx, rx);
+        dev_dbg(musb->controller, "CPPI IRQ Tx%x Rx%x\n", tx, rx);
 
         /* process TX channels */
         for (index = 0; tx; tx = tx >> 1, index++) {
@@ -1198,8 +1203,8 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
                  * that needs to be acknowledged.
                  */
                 if (NULL == bd) {
-                        DBG(1, "null BD\n");
-                        tx_ram->tx_complete = 0;
+                        dev_dbg(musb->controller, "null BD\n");
+                        musb_writel(&tx_ram->tx_complete, 0, 0);
                         continue;
                 }
 
@@ -1213,7 +1218,7 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
                         if (bd->hw_options & CPPI_OWN_SET)
                                 break;
 
-                        DBG(5, "C/TXBD %p n %x b %x off %x opt %x\n",
+                        dev_dbg(musb->controller, "C/TXBD %p n %x b %x off %x opt %x\n",
                                         bd, bd->hw_next, bd->hw_bufp,
                                         bd->hw_off_len, bd->hw_options);
 
@@ -1308,7 +1313,7 @@ dma_controller_create(struct musb *musb, void __iomem *mregs)
         struct cppi             *controller;
         struct device           *dev = musb->controller;
         struct platform_device  *pdev = to_platform_device(dev);
-        int                     irq = platform_get_irq(pdev, 1);
+        int                     irq = platform_get_irq_byname(pdev, "dma");
 
         controller = kzalloc(sizeof *controller, GFP_KERNEL);
         if (!controller)
@@ -1452,7 +1457,7 @@ static int cppi_channel_abort(struct dma_channel *channel)
                  *    compare mode by writing 1 to the tx_complete register.
                  */
                 cppi_reset_tx(tx_ram, 1);
-                cppi_ch->head = 0;
+                cppi_ch->head = NULL;
                 musb_writel(&tx_ram->tx_complete, 0, 1);
                 cppi_dump_tx(5, cppi_ch, " (done teardown)");