diff options
author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-01-22 19:28:12 +0300 |
---|---|---|
committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-01-22 18:52:17 +0200 |
commit | 4907898873a0c7eebbf01c66c7541800c8e7cbe4 (patch) | |
tree | 2e79d5b33de1b7bcf7d2f0a1dd442b33453ea378 /drivers/platform/x86/intel_scu_ipc.c | |
parent | b7380a16268975443f394a3213f2ab6bb48ae940 (diff) |
platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command()
There is no user for this function so we can drop it from the driver.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/intel_scu_ipc.c')
-rw-r--r-- | drivers/platform/x86/intel_scu_ipc.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 8958f3b823b7..0a722a844583 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -383,69 +383,6 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen, } EXPORT_SYMBOL(intel_scu_ipc_command); -#define IPC_SPTR 0x08 -#define IPC_DPTR 0x0C - -/** - * intel_scu_ipc_raw_command() - IPC command with data and pointers - * @cmd: IPC command code. - * @sub: IPC command sub type. - * @in: input data of this IPC command. - * @inlen: input data length in dwords. - * @out: output data of this IPC command. - * @outlen: output data length in dwords. - * @sptr: data writing to SPTR register. - * @dptr: data writing to DPTR register. - * - * Send an IPC command to SCU with input/output data and source/dest pointers. - * - * Return: an IPC error code or 0 on success. - */ -int intel_scu_ipc_raw_command(int cmd, int sub, u8 *in, int inlen, - u32 *out, int outlen, u32 dptr, u32 sptr) -{ - struct intel_scu_ipc_dev *scu = &ipcdev; - int inbuflen = DIV_ROUND_UP(inlen, 4); - u32 inbuf[4]; - int i, err; - - /* Up to 16 bytes */ - if (inbuflen > 4) - return -EINVAL; - - mutex_lock(&ipclock); - if (scu->dev == NULL) { - mutex_unlock(&ipclock); - return -ENODEV; - } - - writel(dptr, scu->ipc_base + IPC_DPTR); - writel(sptr, scu->ipc_base + IPC_SPTR); - - /* - * SRAM controller doesn't support 8-bit writes, it only - * supports 32-bit writes, so we have to copy input data into - * the temporary buffer, and SCU FW will use the inlen to - * determine the actual input data length in the temporary - * buffer. - */ - memcpy(inbuf, in, inlen); - - for (i = 0; i < inbuflen; i++) - ipc_data_writel(scu, inbuf[i], 4 * i); - - ipc_command(scu, (inlen << 16) | (sub << 12) | cmd); - err = intel_scu_ipc_check_status(scu); - if (!err) { - for (i = 0; i < outlen; i++) - *out++ = ipc_data_readl(scu, 4 * i); - } - - mutex_unlock(&ipclock); - return err; -} -EXPORT_SYMBOL_GPL(intel_scu_ipc_raw_command); - /* * Interrupt handler gets called when ioc bit of IPC_COMMAND_REG set to 1 * When ioc bit is set to 1, caller api must wait for interrupt handler called |