Hi, Kishon
On 07/02/2014 07:26 PM, Kishon Vijay Abraham I wrote:
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 16a2f06..782953d 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -109,6 +109,14 @@ config PHY_EXYNOS5250_SATA
SATA 3.0 Gb/s, SATA 6.0 Gb/s speeds. It supports one SATA host
port to accept one SATA device.
+config PHY_HIX5HD2_SATA
+ tristate "HIX5HD2 SATA PHY Driver"
+ depends on ARCH_HIX5HD2 && OF
depends on HAS_IOMEM?
Yes, will add it.
HAS_IOMEM is select by default and not notice it at all.
+ select GENERIC_PHY
+ select MFD_SYSCON
+ help
+ Support for SATA PHY on Hisilicon hix5hd2 Soc.
+
config PHY_SUN4I_USB
tristate "Allwinner sunxi SoC USB PHY driver"
depends on ARCH_SUNXI && HAS_IOMEM && OF
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index b4f1d57..54f04d0 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_OMAP_USB2) +=
phy-omap-usb2.o
obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o
obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o
obj-$(CONFIG_PHY_EXYNOS5250_SATA) += phy-exynos5250-sata.o
+obj-$(CONFIG_PHY_HIX5HD2_SATA) += phy-hix5hd2-sata.o
obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o
obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-exynos-usb2.o
phy-exynos-usb2-y += phy-samsung-usb2.o
diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c
new file mode 100644
index 0000000..6f1e3ea
--- /dev/null
+++ b/drivers/phy/phy-hix5hd2-sata.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2014 Linaro Ltd.
+ * Copyright (c) 2014 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/phy/phy.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
can this be arranged alphabetically? Helps while adding new header files.
Sure
+static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
+{
+ struct phy_provider *phy_provider;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ struct phy *phy;
+ struct hix5hd2_priv *priv;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap(dev, res->start, resource_size(res));
It should be devm_ioremap_resource().
Since these memory region shared by other device, devm_ioremap_resource
will fail, since devm_request_mem_region.
-Kishon
+ if (!priv->base)
+ return -ENOMEM;
+
+ priv->peri_ctrl = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "hisilicon,peripheral-syscon");
+ if (IS_ERR(priv->peri_ctrl))
+ priv->peri_ctrl = NULL;
if syscon_regmap_lookup_by_phandle returns EPROBE_DEFER, you have to return
EPROBE_DEFER no?
Sure,
However, postcore_initcall(syscon_init) is bound to init before
module_platform_driver probe, so EPROBE_DEFER will not occur.
Rest looks fine to me.
Thanks
Kishon
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