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| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2016-06-22 10:49:29 +0100 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2016-06-24 13:32:31 +0530 |
| commit | 9ac3e85a5c5c33ac99b6f093e886ecb8849919d2 (patch) | |
| tree | 6b9e9f44ed956d461fedfd934a1c4cacf18273f1 /drivers/mailbox | |
| parent | 9ef3c5112139cc5c5666ee096e05bc1e00e94015 (diff) | |
| download | op-kernel-dev-9ac3e85a5c5c33ac99b6f093e886ecb8849919d2.zip op-kernel-dev-9ac3e85a5c5c33ac99b6f093e886ecb8849919d2.tar.gz | |
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>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/pl320-ipc.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/drivers/mailbox/pl320-ipc.c b/drivers/mailbox/pl320-ipc.c index f80acb3..2dbed87 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: |
