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i2c: ismt: Adding support for I2C_SMBUS_BLOCK_PROC_CALL
Expand the driver to support I2C_SMBUS_BLOCK_PROC_CALL since HW supports it already. Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mario Alejandro Posso Escobar <mario.posso.escobar@intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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parent
dc4e10b626
commit
5e9a97b1f4
1 changed files with 17 additions and 2 deletions
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@ -53,7 +53,7 @@
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* Features supported by this driver:
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* Hardware PEC yes
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* Block buffer yes
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* Block process call transaction no
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* Block process call transaction yes
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* Slave mode no
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*/
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@ -332,7 +332,8 @@ static int ismt_process_desc(const struct ismt_desc *desc,
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if (desc->status & ISMT_DESC_SCS) {
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if (read_write == I2C_SMBUS_WRITE &&
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size != I2C_SMBUS_PROC_CALL)
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size != I2C_SMBUS_PROC_CALL &&
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size != I2C_SMBUS_BLOCK_PROC_CALL)
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return 0;
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switch (size) {
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@ -345,6 +346,7 @@ static int ismt_process_desc(const struct ismt_desc *desc,
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data->word = dma_buffer[0] | (dma_buffer[1] << 8);
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break;
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case I2C_SMBUS_BLOCK_DATA:
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case I2C_SMBUS_BLOCK_PROC_CALL:
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if (desc->rxbytes != dma_buffer[0] + 1)
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return -EMSGSIZE;
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@ -518,6 +520,18 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
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}
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break;
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case I2C_SMBUS_BLOCK_PROC_CALL:
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dev_dbg(dev, "I2C_SMBUS_BLOCK_PROC_CALL\n");
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dma_size = I2C_SMBUS_BLOCK_MAX;
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desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, 1);
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desc->wr_len_cmd = data->block[0] + 1;
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desc->rd_len = dma_size;
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desc->control |= ISMT_DESC_BLK;
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dma_direction = DMA_BIDIRECTIONAL;
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dma_buffer[0] = command;
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memcpy(&dma_buffer[1], &data->block[1], data->block[0]);
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break;
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case I2C_SMBUS_I2C_BLOCK_DATA:
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/* Make sure the length is valid */
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if (data->block[0] < 1)
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@ -624,6 +638,7 @@ static u32 ismt_func(struct i2c_adapter *adap)
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I2C_FUNC_SMBUS_BYTE_DATA |
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I2C_FUNC_SMBUS_WORD_DATA |
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I2C_FUNC_SMBUS_PROC_CALL |
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I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
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I2C_FUNC_SMBUS_BLOCK_DATA |
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I2C_FUNC_SMBUS_I2C_BLOCK |
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I2C_FUNC_SMBUS_PEC;
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