Hi,
On Friday 20 December 2013 06:54 PM, Kamil Debski wrote:
Add a new driver for the Exynos USB 2.0 PHY. The new driver uses the generic
PHY framework. The driver includes support for the Exynos 4x10 and 4x12
SoC families.
Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
.../devicetree/bindings/phy/samsung-phy.txt | 55 ++++
drivers/phy/Kconfig | 29 ++
drivers/phy/Makefile | 3 +
drivers/phy/phy-exynos4210-usb2.c | 257 ++++++++++++++++
drivers/phy/phy-exynos4212-usb2.c | 306 ++++++++++++++++++++
drivers/phy/phy-samsung-usb2.c | 226 +++++++++++++++
drivers/phy/phy-samsung-usb2.h | 67 +++++
7 files changed, 943 insertions(+)
create mode 100644 drivers/phy/phy-exynos4210-usb2.c
create mode 100644 drivers/phy/phy-exynos4212-usb2.c
create mode 100644 drivers/phy/phy-samsung-usb2.c
create mode 100644 drivers/phy/phy-samsung-usb2.h
.
.
<snip>
.
.
diff --git a/drivers/phy/phy-samsung-usb2.h b/drivers/phy/phy-samsung-usb2.h
new file mode 100644
index 0000000..ab89f91
--- /dev/null
+++ b/drivers/phy/phy-samsung-usb2.h
@@ -0,0 +1,67 @@
+/*
+ * Samsung SoC USB 1.1/2.0 PHY driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Kamil Debski <k.debski@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _PHY_EXYNOS_USB2_H
+#define _PHY_EXYNOS_USB2_H
+
+#include <linux/clk.h>
+#include <linux/phy/phy.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <linux/spinlock.h>
+
+#define KHZ 1000
+#define MHZ (KHZ * KHZ)
+
+struct samsung_usb2_phy_driver;
+struct samsung_usb2_phy_instance;
+struct samsung_usb2_phy_config;
+
+struct samsung_usb2_phy_instance {
+ const struct samsung_usb2_common_phy *cfg;
+ struct clk *clk;
+ struct phy *phy;
+ struct samsung_usb2_phy_driver *drv;
+ unsigned long rate;
+ u32 clk_reg_val;
+ bool enabled;
+};
+
+struct samsung_usb2_phy_driver {
+ const struct samsung_usb2_phy_config *cfg;
+ struct clk *clk;
+ struct device *dev;
+ void __iomem *reg_phy;
+ struct regmap *reg_pmu;
+ struct regmap *reg_sys;
+ spinlock_t lock;
+ struct samsung_usb2_phy_instance instances[0];
I think having instances as array here would allocate more space while
allocating 'samsung_usb2_phy_driver' in 'samsung_usb2_phy_probe'.
Thanks
Kishon
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