From: Xiang Wang <xiang.a.wang@xxxxxxxxx>
1. Support setting hs_hcnt and hs_lcnt
2. Get bus speed mode from ACPI companion of the
i2c controller.
Signed-off-by: Xiang Wang <xiang.a.wang@xxxxxxxxx>
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 6643d2d..0f4c0c4 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -54,8 +54,10 @@ enum dw_pci_ctl_id_t {
struct dw_scl_sda_cfg {
u32 ss_hcnt;
u32 fs_hcnt;
+ u32 hs_hcnt;
u32 ss_lcnt;
u32 fs_lcnt;
+ u32 hs_lcnt;
u32 sda_hold;
};
@@ -237,8 +239,10 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
cfg = controller->scl_sda_cfg;
dev->ss_hcnt = cfg->ss_hcnt;
dev->fs_hcnt = cfg->fs_hcnt;
+ dev->hs_hcnt = cfg->hs_hcnt;
dev->ss_lcnt = cfg->ss_lcnt;
dev->fs_lcnt = cfg->fs_lcnt;
+ dev->hs_lcnt = cfg->hs_lcnt;
dev->sda_hold_time = cfg->sda_hold;
}
@@ -246,6 +250,9 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
dev->tx_fifo_depth = controller->tx_fifo_depth;
dev->rx_fifo_depth = controller->rx_fifo_depth;
+
+ i2c_dw_acpi_setup_speed(&pdev->dev, dev);
+
r = i2c_dw_init(dev);
if (r)
return r;
--
2.5.3
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