diff options
author | Fabio Baltieri <fabio.baltieri@linaro.org> | 2013-05-15 14:03:30 +0200 |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2013-05-28 20:02:09 +0300 |
commit | 16604a3c27f4a43588069ae9a77a9961a485d53f (patch) | |
tree | fcdea48285daa0e5b842e94d0fa89b8af200cfde /drivers/usb/phy | |
parent | b3affc399183eb0c548626daa9daad3d0e100906 (diff) | |
download | linux-16604a3c27f4a43588069ae9a77a9961a485d53f.tar.gz linux-16604a3c27f4a43588069ae9a77a9961a485d53f.tar.bz2 linux-16604a3c27f4a43588069ae9a77a9961a485d53f.zip |
usb: phy: ab8500-usb: move phy tuning values on separate functions
Move each chip's PHY tuning value set code to a separate function to
improve code readability.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/phy')
-rw-r--r-- | drivers/usb/phy/phy-ab8500-usb.c | 161 |
1 files changed, 86 insertions, 75 deletions
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c index a0f7becb2e81..bbc46197dce0 100644 --- a/drivers/usb/phy/phy-ab8500-usb.c +++ b/drivers/usb/phy/phy-ab8500-usb.c @@ -771,6 +771,86 @@ static int ab8500_usb_irq_setup(struct platform_device *pdev, return 0; } +static void ab8500_usb_set_ab8500_tuning_values(struct ab8500_usb *ab) +{ + int err; + + /* Enable the PBT/Bank 0x12 access */ + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x01); + if (err < 0) + dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE1, 0xC8); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE2, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE3, 0x78); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", + err); + + /* Switch to normal mode/disable Bank 0x12 access */ + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", + err); +} + +static void ab8500_usb_set_ab8505_tuning_values(struct ab8500_usb *ab) +{ + int err; + + /* Enable the PBT/Bank 0x12 access */ + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, + 0x01, 0x01); + if (err < 0) + dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE1, + 0xC8, 0xC8); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE2, + 0x60, 0x60); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE3, + 0xFC, 0x80); + + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", + err); + + /* Switch to normal mode/disable Bank 0x12 access */ + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, + 0x00, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", + err); +} + static int ab8500_usb_probe(struct platform_device *pdev) { struct ab8500_usb *ab; @@ -835,81 +915,12 @@ static int ab8500_usb_probe(struct platform_device *pdev) return err; } - /* Phy tuning values for AB8500 > v2.0 */ - if (is_ab8500(ab->ab8500) && !is_ab8500_2p0_or_earlier(ab->ab8500)) { - /* Enable the PBT/Bank 0x12 access */ - err = abx500_set_register_interruptible(ab->dev, - AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x01); - if (err < 0) - dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", - err); - - err = abx500_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE1, 0xC8); - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", - err); - - err = abx500_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE2, 0x00); - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", - err); - - err = abx500_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE3, 0x78); - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", - err); - - /* Switch to normal mode/disable Bank 0x12 access */ - err = abx500_set_register_interruptible(ab->dev, - AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x00); - if (err < 0) - dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", - err); - } - - /* Phy tuning values for AB8505 */ - if (is_ab8505(ab->ab8500)) { - /* Enable the PBT/Bank 0x12 access */ - err = abx500_mask_and_set_register_interruptible(ab->dev, - AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, - 0x01, 0x01); - if (err < 0) - dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", - err); - - err = abx500_mask_and_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE1, - 0xC8, 0xC8); - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", - err); - - err = abx500_mask_and_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE2, - 0x60, 0x60); - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", - err); - - err = abx500_mask_and_set_register_interruptible(ab->dev, - AB8500_DEBUG, AB8500_USB_PHY_TUNE3, - 0xFC, 0x80); - - if (err < 0) - dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", - err); - - /* Switch to normal mode/disable Bank 0x12 access */ - err = abx500_mask_and_set_register_interruptible(ab->dev, - AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, - 0x00, 0x00); - if (err < 0) - dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", - err); - } + if (is_ab8500(ab->ab8500) && !is_ab8500_2p0_or_earlier(ab->ab8500)) + /* Phy tuning values for AB8500 > v2.0 */ + ab8500_usb_set_ab8500_tuning_values(ab); + else if (is_ab8505(ab->ab8500)) + /* Phy tuning values for AB8505 */ + ab8500_usb_set_ab8505_tuning_values(ab); /* Needed to enable ID detection. */ ab8500_usb_wd_workaround(ab); |