From: Kishon Vijay Abraham I <kishon@ti.com>
To: <gregkh@linuxfoundation.org>
Cc: <kishon@ti.com>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 11/16] phy: phy-mt65xx-usb3: add support for mt2701 platform
Date: Mon, 2 May 2016 09:53:02 +0530 [thread overview]
Message-ID: <1462162987-13023-12-git-send-email-kishon@ti.com> (raw)
In-Reply-To: <1462162987-13023-1-git-send-email-kishon@ti.com>
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Add a new OF device ID for mt2701
Some register settings to avoid RX sensitivity level degradation
which may arise on mt8173 platform are separated from other
platforms.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/phy/Kconfig | 5 ++-
drivers/phy/phy-mt65xx-usb3.c | 77 ++++++++++++++++++++++++++++-------------
2 files changed, 54 insertions(+), 28 deletions(-)
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 447cb7c..f6ff76e 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -219,9 +219,8 @@ config PHY_MT65XX_USB3
depends on ARCH_MEDIATEK && OF
select GENERIC_PHY
help
- Say 'Y' here to add support for Mediatek USB3.0 PHY driver
- for mt65xx SoCs. it supports two usb2.0 ports and
- one usb3.0 port.
+ Say 'Y' here to add support for Mediatek USB3.0 PHY driver,
+ it supports multiple usb2.0 and usb3.0 ports.
config PHY_HI6220_USB
tristate "hi6220 USB PHY support"
diff --git a/drivers/phy/phy-mt65xx-usb3.c b/drivers/phy/phy-mt65xx-usb3.c
index c0e7b4b..4d85e73 100644
--- a/drivers/phy/phy-mt65xx-usb3.c
+++ b/drivers/phy/phy-mt65xx-usb3.c
@@ -134,6 +134,11 @@
#define U3P_SR_COEF_DIVISOR 1000
#define U3P_FM_DET_CYCLE_CNT 1024
+struct mt65xx_phy_pdata {
+ /* avoid RX sensitivity level degradation only for mt8173 */
+ bool avoid_rx_sen_degradation;
+};
+
struct mt65xx_phy_instance {
struct phy *phy;
void __iomem *port_base;
@@ -145,6 +150,7 @@ struct mt65xx_u3phy {
struct device *dev;
void __iomem *sif_base; /* include sif2, but exclude port's */
struct clk *u3phya_ref; /* reference clock of usb3 anolog phy */
+ const struct mt65xx_phy_pdata *pdata;
struct mt65xx_phy_instance **phys;
int nphys;
};
@@ -241,22 +247,26 @@ static void phy_instance_init(struct mt65xx_u3phy *u3phy,
tmp = readl(port_base + U3P_U2PHYACR4);
tmp &= ~P2C_U2_GPIO_CTR_MSK;
writel(tmp, port_base + U3P_U2PHYACR4);
+ }
- tmp = readl(port_base + U3P_USBPHYACR2);
- tmp |= PA2_RG_SIF_U2PLL_FORCE_EN;
- writel(tmp, port_base + U3P_USBPHYACR2);
-
- tmp = readl(port_base + U3D_U2PHYDCR0);
- tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON;
- writel(tmp, port_base + U3D_U2PHYDCR0);
- } else {
- tmp = readl(port_base + U3D_U2PHYDCR0);
- tmp |= P2C_RG_SIF_U2PLL_FORCE_ON;
- writel(tmp, port_base + U3D_U2PHYDCR0);
-
- tmp = readl(port_base + U3P_U2PHYDTM0);
- tmp |= P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM;
- writel(tmp, port_base + U3P_U2PHYDTM0);
+ if (u3phy->pdata->avoid_rx_sen_degradation) {
+ if (!index) {
+ tmp = readl(port_base + U3P_USBPHYACR2);
+ tmp |= PA2_RG_SIF_U2PLL_FORCE_EN;
+ writel(tmp, port_base + U3P_USBPHYACR2);
+
+ tmp = readl(port_base + U3D_U2PHYDCR0);
+ tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON;
+ writel(tmp, port_base + U3D_U2PHYDCR0);
+ } else {
+ tmp = readl(port_base + U3D_U2PHYDCR0);
+ tmp |= P2C_RG_SIF_U2PLL_FORCE_ON;
+ writel(tmp, port_base + U3D_U2PHYDCR0);
+
+ tmp = readl(port_base + U3P_U2PHYDTM0);
+ tmp |= P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM;
+ writel(tmp, port_base + U3P_U2PHYDTM0);
+ }
}
tmp = readl(port_base + U3P_USBPHYACR6);
@@ -318,7 +328,7 @@ static void phy_instance_power_on(struct mt65xx_u3phy *u3phy,
tmp |= XC3_RG_U3_XTAL_RX_PWD | XC3_RG_U3_FRC_XTAL_RX_PWD;
writel(tmp, u3phy->sif_base + U3P_XTALCTL3);
- /* [mt8173]switch 100uA current to SSUSB */
+ /* switch 100uA current to SSUSB */
tmp = readl(port_base + U3P_USBPHYACR5);
tmp |= PA5_RG_U2_HS_100U_U3_EN;
writel(tmp, port_base + U3P_USBPHYACR5);
@@ -335,7 +345,7 @@ static void phy_instance_power_on(struct mt65xx_u3phy *u3phy,
tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(4);
writel(tmp, port_base + U3P_USBPHYACR5);
- if (index) {
+ if (u3phy->pdata->avoid_rx_sen_degradation && index) {
tmp = readl(port_base + U3D_U2PHYDCR0);
tmp |= P2C_RG_SIF_U2PLL_FORCE_ON;
writel(tmp, port_base + U3D_U2PHYDCR0);
@@ -386,7 +396,9 @@ static void phy_instance_power_off(struct mt65xx_u3phy *u3phy,
tmp = readl(port_base + U3P_U3_PHYA_REG0);
tmp &= ~P3A_RG_U3_VUSB10_ON;
writel(tmp, port_base + U3P_U3_PHYA_REG0);
- } else {
+ }
+
+ if (u3phy->pdata->avoid_rx_sen_degradation && index) {
tmp = readl(port_base + U3D_U2PHYDCR0);
tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON;
writel(tmp, port_base + U3D_U2PHYDCR0);
@@ -402,7 +414,7 @@ static void phy_instance_exit(struct mt65xx_u3phy *u3phy,
u32 index = instance->index;
u32 tmp;
- if (index) {
+ if (u3phy->pdata->avoid_rx_sen_degradation && index) {
tmp = readl(port_base + U3D_U2PHYDCR0);
tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON;
writel(tmp, port_base + U3D_U2PHYDCR0);
@@ -502,8 +514,24 @@ static struct phy_ops mt65xx_u3phy_ops = {
.owner = THIS_MODULE,
};
+static const struct mt65xx_phy_pdata mt2701_pdata = {
+ .avoid_rx_sen_degradation = false,
+};
+
+static const struct mt65xx_phy_pdata mt8173_pdata = {
+ .avoid_rx_sen_degradation = true,
+};
+
+static const struct of_device_id mt65xx_u3phy_id_table[] = {
+ { .compatible = "mediatek,mt2701-u3phy", .data = &mt2701_pdata },
+ { .compatible = "mediatek,mt8173-u3phy", .data = &mt8173_pdata },
+ { },
+};
+MODULE_DEVICE_TABLE(of, mt65xx_u3phy_id_table);
+
static int mt65xx_u3phy_probe(struct platform_device *pdev)
{
+ const struct of_device_id *match;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct device_node *child_np;
@@ -513,10 +541,15 @@ static int mt65xx_u3phy_probe(struct platform_device *pdev)
struct resource res;
int port, retval;
+ match = of_match_node(mt65xx_u3phy_id_table, pdev->dev.of_node);
+ if (!match)
+ return -EINVAL;
+
u3phy = devm_kzalloc(dev, sizeof(*u3phy), GFP_KERNEL);
if (!u3phy)
return -ENOMEM;
+ u3phy->pdata = match->data;
u3phy->nphys = of_get_child_count(np);
u3phy->phys = devm_kcalloc(dev, u3phy->nphys,
sizeof(*u3phy->phys), GFP_KERNEL);
@@ -587,12 +620,6 @@ put_child:
return retval;
}
-static const struct of_device_id mt65xx_u3phy_id_table[] = {
- { .compatible = "mediatek,mt8173-u3phy", },
- { },
-};
-MODULE_DEVICE_TABLE(of, mt65xx_u3phy_id_table);
-
static struct platform_driver mt65xx_u3phy_driver = {
.probe = mt65xx_u3phy_probe,
.driver = {
--
1.7.9.5
next prev parent reply other threads:[~2016-05-02 4:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-02 4:22 [GIT PULL] phy: for 4.7 Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 01/16] phy: rcar-gen2: add fallback binding Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 02/16] phy: rcar-gen3-usb2: " Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 03/16] phy: rcar-gen3-usb2, rcar-gen2: Use ARCH_RENESAS Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 04/16] phy: Rename phy-brcmstb-sata driver to phy-brcm-sata driver Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 05/16] phy: Add support for NS2 SATA3 PHY in Broadcom SATA3 PHY driver Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 06/16] dt-bindings: phy: bindings document for common " Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 07/16] phy: rcar-gen3-usb2: remove unnecesary struct rcar_gen3_data Kishon Vijay Abraham I
2016-05-02 4:22 ` [PATCH 08/16] phy: rcar-gen3-usb2: Add vbus-supply to handle VBUS on/off Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 09/16] phy: rcar-gen3-usb2: add extcon support Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 10/16] dt-bindings: phy-mt65xx-usb: add support for mt2701 platform Kishon Vijay Abraham I
2016-05-02 4:23 ` Kishon Vijay Abraham I [this message]
2016-05-02 4:23 ` [PATCH 12/16] phy: rockhip-usb: Remove CLK_IS_ROOT Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 13/16] phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 14/16] phy: exynos-mipi-video: Drop support for direct access to PMU Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 15/16] phy: exynos-mipi-video: Rewrite handling of phy registers Kishon Vijay Abraham I
2016-05-02 4:23 ` [PATCH 16/16] phy: exynos-mipi-video: Add support for Exynos 5420 and 5433 SoCs Kishon Vijay Abraham I
2016-05-03 21:51 ` [GIT PULL] phy: for 4.7 Greg KH
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1462162987-13023-12-git-send-email-kishon@ti.com \
--to=kishon@ti.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox