diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-rtl9300.c | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-rtl9300.c b/drivers/i2c/busses/i2c-rtl9300.c index c67463228604..4723e48cfe18 100644 --- a/drivers/i2c/busses/i2c-rtl9300.c +++ b/drivers/i2c/busses/i2c-rtl9300.c @@ -60,14 +60,16 @@ struct rtl9300_i2c_drv_data { }; #define RTL9300_I2C_MUX_NCHAN 8 +#define RTL9310_I2C_MUX_NCHAN 12 struct rtl9300_i2c { struct regmap *regmap; struct device *dev; - struct rtl9300_i2c_chan chans[RTL9300_I2C_MUX_NCHAN]; + struct rtl9300_i2c_chan chans[RTL9310_I2C_MUX_NCHAN]; struct regmap_field *fields[F_NUM_FIELDS]; u32 reg_base; u32 data_reg; + u8 scl_num; u8 sda_num; struct mutex lock; }; @@ -98,6 +100,12 @@ struct rtl9300_i2c_xfer { #define RTL9300_I2C_MST_DATA_WORD3 0x14 #define RTL9300_I2C_MST_GLB_CTRL 0x384 +#define RTL9310_I2C_MST_IF_CTRL 0x1004 +#define RTL9310_I2C_MST_IF_SEL 0x1008 +#define RTL9310_I2C_MST_CTRL 0x0 +#define RTL9310_I2C_MST_MEMADDR_CTRL 0x4 +#define RTL9310_I2C_MST_DATA_CTRL 0x8 + static int rtl9300_i2c_reg_addr_set(struct rtl9300_i2c *i2c, u32 reg, u16 len) { int ret; @@ -114,6 +122,11 @@ static int rtl9300_i2c_select_scl(struct rtl9300_i2c *i2c, u8 scl) return regmap_field_write(i2c->fields[F_SCL_SEL], 1); } +static int rtl9310_i2c_select_scl(struct rtl9300_i2c *i2c, u8 scl) +{ + return regmap_field_update_bits(i2c->fields[F_SCL_SEL], BIT(scl), BIT(scl)); +} + static int rtl9300_i2c_config_chan(struct rtl9300_i2c *i2c, struct rtl9300_i2c_chan *chan) { struct rtl9300_i2c_drv_data *drv_data; @@ -127,7 +140,7 @@ static int rtl9300_i2c_config_chan(struct rtl9300_i2c *i2c, struct rtl9300_i2c_c return ret; drv_data = (struct rtl9300_i2c_drv_data *)device_get_match_data(i2c->dev); - ret = drv_data->select_scl(i2c, 0); + ret = drv_data->select_scl(i2c, i2c->scl_num); if (ret) return ret; @@ -361,7 +374,7 @@ static int rtl9300_i2c_probe(struct platform_device *pdev) struct fwnode_handle *child; struct rtl9300_i2c_drv_data *drv_data; struct reg_field fields[F_NUM_FIELDS]; - u32 clock_freq, sda_num; + u32 clock_freq, scl_num, sda_num; int ret, i = 0; i2c = devm_kzalloc(dev, sizeof(*i2c), GFP_KERNEL); @@ -379,6 +392,11 @@ static int rtl9300_i2c_probe(struct platform_device *pdev) if (ret) return ret; + ret = device_property_read_u32(dev, "realtek,scl", &scl_num); + if (ret || scl_num != 1) + scl_num = 0; + i2c->scl_num = (u8)scl_num; + platform_set_drvdata(pdev, i2c); drv_data = (struct rtl9300_i2c_drv_data *)device_get_match_data(i2c->dev); @@ -474,12 +492,35 @@ static const struct rtl9300_i2c_drv_data rtl9300_i2c_drv_data = { .max_nchan = RTL9300_I2C_MUX_NCHAN, }; +static const struct rtl9300_i2c_drv_data rtl9310_i2c_drv_data = { + .field_desc = { + [F_SCL_SEL] = GLB_REG_FIELD(RTL9310_I2C_MST_IF_SEL, 12, 13), + [F_SDA_SEL] = GLB_REG_FIELD(RTL9310_I2C_MST_IF_SEL, 0, 11), + [F_SCL_FREQ] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 30, 31), + [F_DEV_ADDR] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 11, 17), + [F_SDA_OUT_SEL] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 18, 21), + [F_MEM_ADDR_WIDTH] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 9, 10), + [F_DATA_WIDTH] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 5, 8), + [F_RD_MODE] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 4, 4), + [F_RWOP] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 2, 2), + [F_I2C_FAIL] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 1, 1), + [F_I2C_TRIG] = MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 0, 0), + [F_MEM_ADDR] = MST_REG_FIELD(RTL9310_I2C_MST_MEMADDR_CTRL, 0, 23), + }, + .select_scl = rtl9310_i2c_select_scl, + .data_reg = RTL9310_I2C_MST_DATA_CTRL, + .max_nchan = RTL9310_I2C_MUX_NCHAN, +}; static const struct of_device_id i2c_rtl9300_dt_ids[] = { { .compatible = "realtek,rtl9301-i2c", .data = (void *) &rtl9300_i2c_drv_data }, { .compatible = "realtek,rtl9302b-i2c", .data = (void *) &rtl9300_i2c_drv_data }, { .compatible = "realtek,rtl9302c-i2c", .data = (void *) &rtl9300_i2c_drv_data }, { .compatible = "realtek,rtl9303-i2c", .data = (void *) &rtl9300_i2c_drv_data }, + { .compatible = "realtek,rtl9310-i2c", .data = (void *) &rtl9310_i2c_drv_data }, + { .compatible = "realtek,rtl9311-i2c", .data = (void *) &rtl9310_i2c_drv_data }, + { .compatible = "realtek,rtl9312-i2c", .data = (void *) &rtl9310_i2c_drv_data }, + { .compatible = "realtek,rtl9313-i2c", .data = (void *) &rtl9310_i2c_drv_data }, {} }; MODULE_DEVICE_TABLE(of, i2c_rtl9300_dt_ids); |