[PATCH 11/28] phy: rockchip-usb: introduce a common data-struct for the device

Kishon Vijay Abraham I
2015-12-22T10:39:20Z

From: Heiko Stuebner <heiko@sntech.de>

This introduces a common struct that holds data belonging to
the umbrella device that contains all the phys and that we
want to use later.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/phy/phy-rockchip-usb.c | 26 +++++++++++++++++++-------
1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c
index e941444..2b4802a 100644
--- a/drivers/phy/phy-rockchip-usb.c
+++ b/drivers/phy/phy-rockchip-usb.c
@@ -36,9 +36,14 @@
#define SIDDQ_ON BIT(13)
#define SIDDQ_OFF (0 << 13)

+struct rockchip_usb_phy_base {
+ struct device *dev;
+ struct regmap *reg_base;
+};
+
struct rockchip_usb_phy {
+ struct rockchip_usb_phy_base *base;
unsigned int reg_offset;
- struct regmap *reg_base;
struct clk *clk;
struct phy *phy;
};
@@ -46,7 +51,7 @@ struct rockchip_usb_phy {
static int rockchip_usb_phy_power(struct rockchip_usb_phy *phy,
bool siddq)
{
- return regmap_write(phy->reg_base, phy->reg_offset,
+ return regmap_write(phy->base->reg_base, phy->reg_offset,
SIDDQ_WRITE_ENA | (siddq ? SIDDQ_ON : SIDDQ_OFF));
}

@@ -101,17 +106,23 @@ static void rockchip_usb_phy_action(void *data)
static int rockchip_usb_phy_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
+ struct rockchip_usb_phy_base *phy_base;
struct rockchip_usb_phy *rk_phy;
struct phy_provider *phy_provider;
struct device_node *child;
- struct regmap *grf;
unsigned int reg_offset;
int err;

- grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
- if (IS_ERR(grf)) {
+ phy_base = devm_kzalloc(dev, sizeof(*phy_base), GFP_KERNEL);
+ if (!phy_base)
+ return -ENOMEM;
+
+ phy_base->dev = dev;
+ phy_base->reg_base = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "rockchip,grf");
+ if (IS_ERR(phy_base->reg_base)) {
dev_err(&pdev->dev, "Missing rockchip,grf property\n");
- return PTR_ERR(grf);
+ return PTR_ERR(phy_base->reg_base);
}

for_each_available_child_of_node(dev->of_node, child) {
@@ -121,6 +132,8 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev)
goto put_child;
}

+ rk_phy->base = phy_base;
+
if (of_property_read_u32(child, "reg", &reg_offset)) {
dev_err(dev, "missing reg property in node %s\n",
child->name);
@@ -129,7 +142,6 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev)
}

rk_phy->reg_offset = reg_offset;
- rk_phy->reg_base = grf;

err = devm_add_action(dev, rockchip_usb_phy_action, rk_phy);
if (err)
--
1.7.9.5