From: "Chew, Chiau Ee" <chiau.ee.c...@intel.com>
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.c...@intel.com>
Signed-off-by: Ong, Boon Leong <boon.leong....@intel.com>
Signed-off-by: Wolfram Sang <w...@the-dreams.de>
(cherry picked from commit ceccd298f6fd537457576017d604fc5aa6d3c82a)
Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.ch...@intel.com>
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c
b/drivers/i2c/busses/i2c-designware-pcidrv.c
index f1dabee..87f2fc4 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -64,12 +64,19 @@ struct dw_pci_controller {
u32 tx_fifo_depth;
u32 rx_fifo_depth;
u32 clk_khz;
+ u32 functionality;
};
#define INTEL_MID_STD_CFG (DW_IC_CON_MASTER | \
DW_IC_CON_SLAVE_DISABLE | \
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[] = {
[moorestown_0] = {
.bus_num = 0,
@@ -140,6 +147,7 @@ static struct dw_pci_controller dw_pci_controllers[] = {
.tx_fifo_depth = 32,
.rx_fifo_depth = 32,
.clk_khz = 100000,
+ .functionality = I2C_FUNC_10BIT_ADDR,
},
};
static struct i2c_algorithm i2c_dw_algo = {
@@ -256,12 +264,9 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz;
dev->base = pcim_iomap_table(pdev)[0];
dev->dev = &pdev->dev;
- dev->functionality =
- I2C_FUNC_I2C |
- I2C_FUNC_SMBUS_BYTE |
- I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_SMBUS_WORD_DATA |
- I2C_FUNC_SMBUS_I2C_BLOCK;
+ dev->functionality = controller->functionality |
+ DW_DEFAULT_FUNCTIONALITY;
+
dev->master_cfg = controller->bus_cfg;
pci_set_drvdata(pdev, dev);
--
1.9.1
--
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