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>
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index a0f7bec..bbc4619 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -771,6 +771,86 @@
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 @@
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);