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i2c: designware-pci: add 10-bit addressing mode functionality for BYT I2C 

All the I2C controllers on Intel BayTrail LPSS subsystem able
to support 10-bit addressing mode functionality.

Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Signed-off-by: Ong, Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Chew, Chiau Ee 2014-03-07 22:12:50 +08:00 committed by Wolfram Sang
parent 0977f27338
commit ceccd298f6
1 changed files with 11 additions and 6 deletions
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17
drivers/i2c/busses/i2c-designware-pcidrv.c
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@ -64,12 +64,19 @@ struct dw_pci_controller {
u32 tx_fifo_depth; u32 tx_fifo_depth;
u32 rx_fifo_depth; u32 rx_fifo_depth;
u32 clk_khz; u32 clk_khz;
u32 functionality;
}; };
#define INTEL_MID_STD_CFG (DW_IC_CON_MASTER | \ #define INTEL_MID_STD_CFG (DW_IC_CON_MASTER | \
DW_IC_CON_SLAVE_DISABLE | \ DW_IC_CON_SLAVE_DISABLE | \
DW_IC_CON_RESTART_EN) DW_IC_CON_RESTART_EN)
#define DW_DEFAULT_FUNCTIONALITY (I2C_FUNC_I2C | \
I2C_FUNC_SMBUS_BYTE | \
I2C_FUNC_SMBUS_BYTE_DATA | \
I2C_FUNC_SMBUS_WORD_DATA | \
I2C_FUNC_SMBUS_I2C_BLOCK)
static struct dw_pci_controller dw_pci_controllers[] = { static struct dw_pci_controller dw_pci_controllers[] = {
[moorestown_0] = { [moorestown_0] = {
.bus_num = 0, .bus_num = 0,
@ -140,6 +147,7 @@ static struct dw_pci_controller dw_pci_controllers[] = {
.tx_fifo_depth = 32, .tx_fifo_depth = 32,
.rx_fifo_depth = 32, .rx_fifo_depth = 32,
.clk_khz = 100000, .clk_khz = 100000,
.functionality = I2C_FUNC_10BIT_ADDR,
}, },
}; };
static struct i2c_algorithm i2c_dw_algo = { static struct i2c_algorithm i2c_dw_algo = {
@ -212,12 +220,9 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz; dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz;
dev->base = pcim_iomap_table(pdev)[0]; dev->base = pcim_iomap_table(pdev)[0];
dev->dev = &pdev->dev; dev->dev = &pdev->dev;
dev->functionality = dev->functionality = controller->functionality |
I2C_FUNC_I2C | DW_DEFAULT_FUNCTIONALITY;
I2C_FUNC_SMBUS_BYTE |
I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_I2C_BLOCK;
dev->master_cfg = controller->bus_cfg; dev->master_cfg = controller->bus_cfg;
pci_set_drvdata(pdev, dev); pci_set_drvdata(pdev, dev);