mailbox: pl320: remove __raw IO

The use of __raw IO accesors is not endian safe and should be used
sparingly. The relaxed variants should be as lightweight and also
are endian safe.

Note, this has not been run-time tested.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

1 files changed, 23 insertions, 23 deletions

diff --git a/drivers/mailbox/pl320-ipc.c b/drivers/mailbox/pl320-ipc.c
index f80acb36ff07..2dbed87094d7 100644
--- a/drivers/mailbox/pl320-ipc.c
+++ b/drivers/mailbox/pl320-ipc.c
@@ -58,29 +58,29 @@ static ATOMIC_NOTIFIER_HEAD(ipc_notifier);
 
 static inline void set_destination(int source, int mbox)
 {
-        __raw_writel(CHAN_MASK(source), ipc_base + IPCMxDSET(mbox));
-        __raw_writel(CHAN_MASK(source), ipc_base + IPCMxMSET(mbox));
+        writel_relaxed(CHAN_MASK(source), ipc_base + IPCMxDSET(mbox));
+        writel_relaxed(CHAN_MASK(source), ipc_base + IPCMxMSET(mbox));
 }
 
 static inline void clear_destination(int source, int mbox)
 {
-        __raw_writel(CHAN_MASK(source), ipc_base + IPCMxDCLEAR(mbox));
-        __raw_writel(CHAN_MASK(source), ipc_base + IPCMxMCLEAR(mbox));
+        writel_relaxed(CHAN_MASK(source), ipc_base + IPCMxDCLEAR(mbox));
+        writel_relaxed(CHAN_MASK(source), ipc_base + IPCMxMCLEAR(mbox));
 }
 
 static void __ipc_send(int mbox, u32 *data)
 {
         int i;
         for (i = 0; i < 7; i++)
-                __raw_writel(data[i], ipc_base + IPCMxDR(mbox, i));
-        __raw_writel(0x1, ipc_base + IPCMxSEND(mbox));
+                writel_relaxed(data[i], ipc_base + IPCMxDR(mbox, i));
+        writel_relaxed(0x1, ipc_base + IPCMxSEND(mbox));
 }
 
 static u32 __ipc_rcv(int mbox, u32 *data)
 {
         int i;
         for (i = 0; i < 7; i++)
-                data[i] = __raw_readl(ipc_base + IPCMxDR(mbox, i));
+                data[i] = readl_relaxed(ipc_base + IPCMxDR(mbox, i));
         return data[1];
 }
 
@@ -112,15 +112,15 @@ static irqreturn_t ipc_handler(int irq, void *dev)
         u32 irq_stat;
         u32 data[7];
 
-        irq_stat = __raw_readl(ipc_base + IPCMMIS(1));
+        irq_stat = readl_relaxed(ipc_base + IPCMMIS(1));
         if (irq_stat & MBOX_MASK(IPC_TX_MBOX)) {
-                __raw_writel(0, ipc_base + IPCMxSEND(IPC_TX_MBOX));
+                writel_relaxed(0, ipc_base + IPCMxSEND(IPC_TX_MBOX));
                 complete(&ipc_completion);
         }
         if (irq_stat & MBOX_MASK(IPC_RX_MBOX)) {
                 __ipc_rcv(IPC_RX_MBOX, data);
                 atomic_notifier_call_chain(&ipc_notifier, data[0], data + 1);
-                __raw_writel(2, ipc_base + IPCMxSEND(IPC_RX_MBOX));
+                writel_relaxed(2, ipc_base + IPCMxSEND(IPC_RX_MBOX));
         }
 
         return IRQ_HANDLED;
@@ -146,7 +146,7 @@ static int pl320_probe(struct amba_device *adev, const struct amba_id *id)
         if (ipc_base == NULL)
                 return -ENOMEM;
 
-        __raw_writel(0, ipc_base + IPCMxSEND(IPC_TX_MBOX));
+        writel_relaxed(0, ipc_base + IPCMxSEND(IPC_TX_MBOX));
 
         ipc_irq = adev->irq[0];
         ret = request_irq(ipc_irq, ipc_handler, 0, dev_name(&adev->dev), NULL);
@@ -154,20 +154,20 @@ static int pl320_probe(struct amba_device *adev, const struct amba_id *id)
                 goto err;
 
         /* Init slow mailbox */
-        __raw_writel(CHAN_MASK(A9_SOURCE),
-                        ipc_base + IPCMxSOURCE(IPC_TX_MBOX));
-        __raw_writel(CHAN_MASK(M3_SOURCE),
-                        ipc_base + IPCMxDSET(IPC_TX_MBOX));
-        __raw_writel(CHAN_MASK(M3_SOURCE) | CHAN_MASK(A9_SOURCE),
-                     ipc_base + IPCMxMSET(IPC_TX_MBOX));
+        writel_relaxed(CHAN_MASK(A9_SOURCE),
+                       ipc_base + IPCMxSOURCE(IPC_TX_MBOX));
+        writel_relaxed(CHAN_MASK(M3_SOURCE),
+                       ipc_base + IPCMxDSET(IPC_TX_MBOX));
+        writel_relaxed(CHAN_MASK(M3_SOURCE) | CHAN_MASK(A9_SOURCE),
+                       ipc_base + IPCMxMSET(IPC_TX_MBOX));
 
         /* Init receive mailbox */
-        __raw_writel(CHAN_MASK(M3_SOURCE),
-                        ipc_base + IPCMxSOURCE(IPC_RX_MBOX));
-        __raw_writel(CHAN_MASK(A9_SOURCE),
-                        ipc_base + IPCMxDSET(IPC_RX_MBOX));
-        __raw_writel(CHAN_MASK(M3_SOURCE) | CHAN_MASK(A9_SOURCE),
-                     ipc_base + IPCMxMSET(IPC_RX_MBOX));
+        writel_relaxed(CHAN_MASK(M3_SOURCE),
+                       ipc_base + IPCMxSOURCE(IPC_RX_MBOX));
+        writel_relaxed(CHAN_MASK(A9_SOURCE),
+                       ipc_base + IPCMxDSET(IPC_RX_MBOX));
+        writel_relaxed(CHAN_MASK(M3_SOURCE) | CHAN_MASK(A9_SOURCE),
+                       ipc_base + IPCMxMSET(IPC_RX_MBOX));
 
         return 0;
 err: