diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-05-19 15:50:37 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2020-05-22 16:50:17 +0200 |
| commit | ab0ef8bac10db48b1045e5d492a21511e54babaf (patch) | |
| tree | 40141652776ab342c5214836fc782fef5586838e /drivers/i2c | |
| parent | 7c9ec2c5251851f5a3888d1a7fbb2eaf700a538a (diff) | |
| download | linux-ab0ef8bac10db48b1045e5d492a21511e54babaf.tar.bz2 | |
i2c: designware: Get rid of PCI driver specifics in common code
Do not spread PCI specifics over common code. It seems to be a layering
violation which can be easily avoided. Refactor PCI driver and drop
PCI specifics from common code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-core.h | 1 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-pcidrv.c | 24 |
2 files changed, 14 insertions, 11 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 1674caf27745..6202f9ee953d 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -232,7 +232,6 @@ struct dw_i2c_dev { struct reset_control *rst; struct i2c_client *slave; u32 (*get_clk_rate_khz) (struct dw_i2c_dev *dev); - struct dw_pci_controller *controller; int cmd_err; struct i2c_msg *msgs; int msgs_num; diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index c762e5a11e44..c8808e5855b4 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -48,10 +48,10 @@ struct dw_pci_controller { u32 bus_num; u32 tx_fifo_depth; u32 rx_fifo_depth; - u32 clk_khz; u32 flags; struct dw_scl_sda_cfg *scl_sda_cfg; int (*setup)(struct pci_dev *pdev, struct dw_pci_controller *c); + u32 (*get_clk_rate_khz)(struct dw_i2c_dev *dev); }; /* Merrifield HCNT/LCNT/SDA hold time */ @@ -80,6 +80,11 @@ static struct dw_scl_sda_cfg hsw_config = { .sda_hold = 0x9, }; +static u32 mfld_get_clk_rate_khz(struct dw_i2c_dev *dev) +{ + return 25000; +} + static int mfld_setup(struct pci_dev *pdev, struct dw_pci_controller *c) { struct dw_i2c_dev *dev = dev_get_drvdata(&pdev->dev); @@ -120,13 +125,18 @@ static int mrfld_setup(struct pci_dev *pdev, struct dw_pci_controller *c) return -ENODEV; } +static u32 ehl_get_clk_rate_khz(struct dw_i2c_dev *dev) +{ + return 100000; +} + static struct dw_pci_controller dw_pci_controllers[] = { [medfield] = { .bus_num = -1, .tx_fifo_depth = 32, .rx_fifo_depth = 32, - .clk_khz = 25000, .setup = mfld_setup, + .get_clk_rate_khz = mfld_get_clk_rate_khz, }, [merrifield] = { .bus_num = -1, @@ -158,7 +168,7 @@ static struct dw_pci_controller dw_pci_controllers[] = { .bus_num = -1, .tx_fifo_depth = 32, .rx_fifo_depth = 32, - .clk_khz = 100000, + .get_clk_rate_khz = ehl_get_clk_rate_khz, }, }; @@ -188,11 +198,6 @@ static int i2c_dw_pci_resume(struct device *dev) static UNIVERSAL_DEV_PM_OPS(i2c_dw_pm_ops, i2c_dw_pci_suspend, i2c_dw_pci_resume, NULL); -static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev) -{ - return dev->controller->clk_khz; -} - static int i2c_dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -233,8 +238,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, if (r < 0) return r; - dev->controller = controller; - dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz; + dev->get_clk_rate_khz = controller->get_clk_rate_khz; dev->timings.bus_freq_hz = I2C_MAX_FAST_MODE_FREQ; dev->base = pcim_iomap_table(pdev)[0]; dev->dev = &pdev->dev; |