Re: [PATCH v2 1/5] phy: Add driver for Exynos MIPI CSIS/DSIM DPHYs

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On Wednesday 26 June 2013 05:52 PM, Felipe Balbi wrote:
On Wed, Jun 26, 2013 at 02:03:42PM +0200, Sylwester Nawrocki wrote:
On 06/26/2013 01:21 PM, Kishon Vijay Abraham I wrote:
+static int exynos_video_phy_probe(struct platform_device *pdev)
+{
+	struct exynos_video_phy *state;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct phy_provider *phy_provider;
+	int i;
+
+	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	state->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(state->regs))
+		return PTR_ERR(state->regs);
+
+	dev_set_drvdata(dev, state);

you can use platform_set_drvdata(pdev, state);

I had it in the previous version, but changed for symmetry with
dev_set_drvdata(). I guess those could be replaced with
phy_{get, set}_drvdata as you suggested.

right. currently I was setting dev_set_drvdata of phy (core) device
in phy-core.c and the corresponding dev_get_drvdata in phy provider driver
which is little confusing.
So I'll add phy_set_drvdata and phy_get_drvdata in phy.h (as suggested by
Felipe) to be used by phy provider drivers. So after creating the PHY, the
phy provider should use phy_set_drvdata and in phy_ops, it can use
phy_get_drvdata. (I'll remove the dev_set_drvdata in phy_create).

This also means _void *priv_ in phy_create is useless. So I'll be removing
_priv_ from phy_create.

Yeah, sounds good. Then in the phy ops phy_get_drvdata(&phy->dev) would

phy_get_drvdata(phy);

accessing the dev pointer will be done inside the helper :-)

right :-)

-Kishon
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