pch_uart : Use dev_xxx not pr_xxx

For easy to understad which port the message is out,
replace pr_xxx with dev_xxx.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 0e171b8..6885535 100644 (file)
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -282,7 +282,7 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
 
        div = DIV_ROUND(priv->base_baud / 16, baud);
        if (div < 0 || USHRT_MAX <= div) {
-               pr_err("Invalid Baud(div=0x%x)\n", div);
+               dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);
                return -EINVAL;
        }
 
@@ -290,17 +290,17 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
        dlm = ((unsigned int)div >> 8) & 0x00FFU;
 
        if (parity & ~(PCH_UART_LCR_PEN | PCH_UART_LCR_EPS | PCH_UART_LCR_SP)) {
-               pr_err("Invalid parity(0x%x)\n", parity);
+               dev_err(priv->port.dev, "Invalid parity(0x%x)\n", parity);
                return -EINVAL;
        }
 
        if (bits & ~PCH_UART_LCR_WLS) {
-               pr_err("Invalid bits(0x%x)\n", bits);
+               dev_err(priv->port.dev, "Invalid bits(0x%x)\n", bits);
                return -EINVAL;
        }
 
        if (stb & ~PCH_UART_LCR_STB) {
-               pr_err("Invalid STB(0x%x)\n", stb);
+               dev_err(priv->port.dev, "Invalid STB(0x%x)\n", stb);
                return -EINVAL;
        }
 
@@ -308,7 +308,7 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
        lcr |= bits;
        lcr |= stb;
 
-       pr_debug("%s:baud = %d, div = %04x, lcr = %02x (%lu)\n",
+       dev_dbg(priv->port.dev, "%s:baud = %d, div = %04x, lcr = %02x (%lu)\n",
                 __func__, baud, div, lcr, jiffies);
        iowrite8(PCH_UART_LCR_DLAB, priv->membase + UART_LCR);
        iowrite8(dll, priv->membase + PCH_UART_DLL);
@@ -322,7 +322,8 @@ static int pch_uart_hal_fifo_reset(struct eg20t_port *priv,
                                    unsigned int flag)
 {
        if (flag & ~(PCH_UART_FCR_TFR | PCH_UART_FCR_RFR)) {
-               pr_err("%s:Invalid flag(0x%x)\n", __func__, flag);
+               dev_err(priv->port.dev, "%s:Invalid flag(0x%x)\n",
+                       __func__, flag);
                return -EINVAL;
        }
 
@@ -341,17 +342,20 @@ static int pch_uart_hal_set_fifo(struct eg20t_port *priv,
        u8 fcr;
 
        if (dmamode & ~PCH_UART_FCR_DMS) {
-               pr_err("%s:Invalid DMA Mode(0x%x)\n", __func__, dmamode);
+               dev_err(priv->port.dev, "%s:Invalid DMA Mode(0x%x)\n",
+                       __func__, dmamode);
                return -EINVAL;
        }
 
        if (fifo_size & ~(PCH_UART_FCR_FIFOE | PCH_UART_FCR_FIFO256)) {
-               pr_err("%s:Invalid FIFO SIZE(0x%x)\n", __func__, fifo_size);
+               dev_err(priv->port.dev, "%s:Invalid FIFO SIZE(0x%x)\n",
+                       __func__, fifo_size);
                return -EINVAL;
        }
 
        if (trigger & ~PCH_UART_FCR_RFTL) {
-               pr_err("%s:Invalid TRIGGER(0x%x)\n", __func__, trigger);
+               dev_err(priv->port.dev, "%s:Invalid TRIGGER(0x%x)\n",
+                       __func__, trigger);
                return -EINVAL;
        }
 
@@ -455,7 +459,7 @@ static int push_rx(struct eg20t_port *priv, const unsigned char *buf,
        port = &priv->port;
        tty = tty_port_tty_get(&port->state->port);
        if (!tty) {
-               pr_debug("%s:tty is busy now", __func__);
+               dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
                return -EBUSY;
        }
 
@@ -472,8 +476,8 @@ static int pop_tx_x(struct eg20t_port *priv, unsigned char *buf)
        struct uart_port *port = &priv->port;
 
        if (port->x_char) {
-               pr_debug("%s:X character send %02x (%lu)\n", __func__,
-                       port->x_char, jiffies);
+               dev_dbg(priv->port.dev, "%s:X character send %02x (%lu)\n",
+                       __func__, port->x_char, jiffies);
                buf[0] = port->x_char;
                port->x_char = 0;
                ret = 1;
@@ -493,7 +497,7 @@ static int dma_push_rx(struct eg20t_port *priv, int size)
        port = &priv->port;
        tty = tty_port_tty_get(&port->state->port);
        if (!tty) {
-               pr_debug("%s:tty is busy now", __func__);
+               dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
                return 0;
        }
 
@@ -567,7 +571,8 @@ static void pch_request_dma(struct uart_port *port)
        param->tx_reg = port->mapbase + UART_TX;
        chan = dma_request_channel(mask, filter, param);
        if (!chan) {
-               pr_err("%s:dma_request_channel FAILS(Tx)\n", __func__);
+               dev_err(priv->port.dev, "%s:dma_request_channel FAILS(Tx)\n",
+                       __func__);
                return;
        }
        priv->chan_tx = chan;
@@ -579,7 +584,8 @@ static void pch_request_dma(struct uart_port *port)
        param->rx_reg = port->mapbase + UART_RX;
        chan = dma_request_channel(mask, filter, param);
        if (!chan) {
-               pr_err("%s:dma_request_channel FAILS(Rx)\n", __func__);
+               dev_err(priv->port.dev, "%s:dma_request_channel FAILS(Rx)\n",
+                       __func__);
                dma_release_channel(priv->chan_tx);
                return;
        }
@@ -598,7 +604,7 @@ static void pch_dma_rx_complete(void *arg)
        int count;
 
        if (!tty) {
-               pr_debug("%s:tty is busy now", __func__);
+               dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
                return;
        }
 
@@ -652,7 +658,7 @@ static int pop_tx(struct eg20t_port *priv, int size)
        } while (!uart_circ_empty(xmit) && count < size);
 
 pop_tx_end:
-       pr_debug("%d characters. Remained %d characters. (%lu)\n",
+       dev_dbg(priv->port.dev, "%d characters. Remained %d characters.(%lu)\n",
                 count, size - count, jiffies);
 
        return count;
@@ -728,7 +734,8 @@ static unsigned int handle_tx(struct eg20t_port *priv)
        int tx_empty;
 
        if (!priv->start_tx) {
-               pr_info("%s:Tx isn't started. (%lu)\n", __func__, jiffies);
+               dev_info(priv->port.dev, "%s:Tx isn't started. (%lu)\n",
+                       __func__, jiffies);
                pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_TX_INT);
                priv->tx_empty = 1;
                return 0;
@@ -778,7 +785,8 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
        int rem;
 
        if (!priv->start_tx) {
-               pr_info("%s:Tx isn't started. (%lu)\n", __func__, jiffies);
+               dev_info(priv->port.dev, "%s:Tx isn't started. (%lu)\n",
+                       __func__, jiffies);
                pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_TX_INT);
                priv->tx_empty = 1;
                return 0;
@@ -797,6 +805,7 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
                             UART_XMIT_SIZE), CIRC_CNT_TO_END(xmit->head,
                             xmit->tail, UART_XMIT_SIZE));
        if (!bytes) {
+               dev_dbg(priv->port.dev, "%s 0 bytes return\n", __func__);
                pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_TX_INT);
                uart_write_wakeup(port);
                return 0;
@@ -812,6 +821,9 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
                rem = bytes;
        }
 
+       dev_dbg(priv->port.dev, "%s num=%d size=%d rem=%d\n",
+               __func__, num, size, rem);
+
        priv->tx_dma_use = 1;
 
        priv->sg_tx_p = kzalloc(sizeof(struct scatterlist)*num, GFP_ATOMIC);
@@ -831,7 +843,7 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
        sg = priv->sg_tx_p;
        nent = dma_map_sg(port->dev, sg, num, DMA_TO_DEVICE);
        if (!nent) {
-               pr_err("%s:dma_map_sg Failed\n", __func__);
+               dev_err(priv->port.dev, "%s:dma_map_sg Failed\n", __func__);
                return 0;
        }
        priv->nent = nent;
@@ -851,7 +863,8 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
                                        priv->sg_tx_p, nent, DMA_TO_DEVICE,
                                        DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
        if (!desc) {
-               pr_err("%s:device_prep_slave_sg Failed\n", __func__);
+               dev_err(priv->port.dev, "%s:device_prep_slave_sg Failed\n",
+                       __func__);
                return 0;
        }
        dma_sync_sg_for_device(port->dev, priv->sg_tx_p, nent, DMA_TO_DEVICE);
@@ -935,7 +948,8 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
                        ret = PCH_UART_HANDLED_MS_INT;
                        break;
                default:        /* Never junp to this label */
-                       pr_err("%s:iid=%d (%lu)\n", __func__, iid, jiffies);
+                       dev_err(priv->port.dev, "%s:iid=%d (%lu)\n", __func__,
+                               iid, jiffies);
                        ret = -1;
                        break;
                }
@@ -1024,9 +1038,13 @@ static void pch_uart_start_tx(struct uart_port *port)
 
        priv = container_of(port, struct eg20t_port, port);
 
-       if (priv->use_dma)
-               if (priv->tx_dma_use)
+       if (priv->use_dma) {
+               if (priv->tx_dma_use) {
+                       dev_dbg(priv->port.dev, "%s : Tx DMA is NOT empty.\n",
+                               __func__);
                        return;
+               }
+       }
 
        priv->start_tx = 1;
        pch_uart_hal_enable_interrupt(priv, PCH_UART_HAL_TX_INT);
@@ -1142,7 +1160,8 @@ static void pch_uart_shutdown(struct uart_port *port)
        ret = pch_uart_hal_set_fifo(priv, PCH_UART_HAL_DMA_MODE0,
                              PCH_UART_HAL_FIFO_DIS, PCH_UART_HAL_TRIGGER1);
        if (ret)
-               pr_err("pch_uart_hal_set_fifo Failed(ret=%d)\n", ret);
+               dev_err(priv->port.dev,
+                       "pch_uart_hal_set_fifo Failed(ret=%d)\n", ret);
 
        if (priv->use_dma_flag)
                pch_free_dma(port);
@@ -1263,17 +1282,19 @@ static int pch_uart_verify_port(struct uart_port *port,
 
        priv = container_of(port, struct eg20t_port, port);
        if (serinfo->flags & UPF_LOW_LATENCY) {
-               pr_info("PCH UART : Use PIO Mode (without DMA)\n");
+               dev_info(priv->port.dev,
+                       "PCH UART : Use PIO Mode (without DMA)\n");
                priv->use_dma = 0;
                serinfo->flags &= ~UPF_LOW_LATENCY;
        } else {
 #ifndef CONFIG_PCH_DMA
-               pr_err("%s : PCH DMA is not Loaded.\n", __func__);
+               dev_err(priv->port.dev, "%s : PCH DMA is not Loaded.\n",
+                       __func__);
                return -EOPNOTSUPP;
 #endif
                priv->use_dma = 1;
                priv->use_dma_flag = 1;
-               pr_info("PCH UART : Use DMA Mode\n");
+               dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n");
        }
 
        return 0;