cpm_uart: Pass actual dev ptr to dma_* in ucc and cpm_uart serial

We're currently passing NULL, and really shouldn't be.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 25efca5..a6c4d74 100644 (file)
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -1333,6 +1333,9 @@ static int __devinit cpm_uart_probe(struct of_device *ofdev,
        if (ret)
                return ret;
 
+       /* initialize the device pointer for the port */
+       pinfo->port.dev = &ofdev->dev;
+
        return uart_add_one_port(&cpm_reg, &pinfo->port);
 }
 

diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index 0f0aff0..1b94c56 100644 (file)
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -100,7 +100,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
                mem_addr = (u8 *) cpm_dpram_addr(cpm_dpalloc(memsz, 8));
                dma_addr = (u32)cpm_dpram_phys(mem_addr);
        } else
-               mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
+               mem_addr = dma_alloc_coherent(pinfo->port.dev, memsz, &dma_addr,
                                              GFP_KERNEL);
 
        if (mem_addr == NULL) {
@@ -127,8 +127,8 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 {
-       dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
-                                              pinfo->rx_fifosize) +
+       dma_free_coherent(pinfo->port.dev, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
+                                                         pinfo->rx_fifosize) +
                          L1_CACHE_ALIGN(pinfo->tx_nrfifos *
                                         pinfo->tx_fifosize), pinfo->mem_addr,
                          pinfo->dma_addr);

diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index b8db4d3..141c0a3 100644 (file)
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -136,7 +136,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
                dma_addr = virt_to_bus(mem_addr);
        }
        else
-               mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
+               mem_addr = dma_alloc_coherent(pinfo->port.dev, memsz, &dma_addr,
                                              GFP_KERNEL);
 
        if (mem_addr == NULL) {
@@ -163,8 +163,8 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 {
-       dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
-                                              pinfo->rx_fifosize) +
+       dma_free_coherent(pinfo->port.dev, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
+                                                         pinfo->rx_fifosize) +
                          L1_CACHE_ALIGN(pinfo->tx_nrfifos *
                                         pinfo->tx_fifosize), (void __force *)pinfo->mem_addr,
                          pinfo->dma_addr);

diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c
index 5c5d18d..539c933 100644 (file)
--- a/drivers/serial/ucc_uart.c
+++ b/drivers/serial/ucc_uart.c
@@ -1009,7 +1009,7 @@ static int qe_uart_request_port(struct uart_port *port)
        rx_size = L1_CACHE_ALIGN(qe_port->rx_nrfifos * qe_port->rx_fifosize);
        tx_size = L1_CACHE_ALIGN(qe_port->tx_nrfifos * qe_port->tx_fifosize);
 
-       bd_virt = dma_alloc_coherent(NULL, rx_size + tx_size, &bd_dma_addr,
+       bd_virt = dma_alloc_coherent(port->dev, rx_size + tx_size, &bd_dma_addr,
                GFP_KERNEL);
        if (!bd_virt) {
                dev_err(port->dev, "could not allocate buffer descriptors\n");
@@ -1051,7 +1051,7 @@ static void qe_uart_release_port(struct uart_port *port)
                container_of(port, struct uart_qe_port, port);
        struct ucc_slow_private *uccs = qe_port->us_private;
 
-       dma_free_coherent(NULL, qe_port->bd_size, qe_port->bd_virt,
+       dma_free_coherent(port->dev, qe_port->bd_size, qe_port->bd_virt,
                          qe_port->bd_dma_addr);
 
        ucc_slow_free(uccs);