From mboxrd@z Thu Jan 1 00:00:00 1970 From: wangxfdu@gmail.com Subject: [PATCH 2/2] i2c: designware: enable High-speed mode for pcidrv Date: Fri, 9 Oct 2015 16:47:06 +0800 Message-ID: <1444380426-17953-2-git-send-email-wangxfdu@gmail.com> References: <1444380426-17953-1-git-send-email-wangxfdu@gmail.com> Return-path: In-Reply-To: <1444380426-17953-1-git-send-email-wangxfdu@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: wangxfdu@gmail.com, xiang.a.wang@intel.com, wsa@the-dreams.de, andriy.shevchenko@linux.intel.com, jarkko.nikula@linux.intel.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-i2c@vger.kernel.org From: Xiang Wang 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 --- 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