Hi,
On Friday 28 June 2013 11:34 AM, Jingoo Han wrote:
On Friday, June 28, 2013 2:58 PM, Kishon Vijay Abraham I wrote:
Hi,
On Friday 28 June 2013 10:54 AM, Jingoo Han wrote:
Use the generic PHY API instead of the platform callback to control
the DP PHY. The 'phy_label' field is added to the platform data
structure to allow PHY lookup on non-dt platforms.
Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
.../devicetree/bindings/video/exynos_dp.txt | 17 ---
drivers/video/exynos/exynos_dp_core.c | 118 ++------------------
drivers/video/exynos/exynos_dp_core.h | 2 +
include/video/exynos_dp.h | 6 +-
4 files changed, 15 insertions(+), 128 deletions(-)
diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt
b/Documentation/devicetree/bindings/video/exynos_dp.txt
index 84f10c1..a8320e3 100644
--- a/Documentation/devicetree/bindings/video/exynos_dp.txt
+++ b/Documentation/devicetree/bindings/video/exynos_dp.txt
@@ -1,17 +1,6 @@
The Exynos display port interface should be configured based on
the type of panel connected to it.
-We use two nodes:
- -dp-controller node
- -dptx-phy node(defined inside dp-controller node)
-
-For the DP-PHY initialization, we use the dptx-phy node.
-Required properties for dptx-phy:
- -reg:
- Base address of DP PHY register.
- -samsung,enable-mask:
- The bit-mask used to enable/disable DP PHY.
-
For the Panel initialization, we read data from dp-controller node.
Required properties for dp-controller:
-compatible:
@@ -67,12 +56,6 @@ SOC specific portion:
interrupt-parent = <&combiner>;
clocks = <&clock 342>;
clock-names = "dp";
-
- dptx-phy {
- reg = <0x10040720>;
- samsung,enable-mask = <1>;
- };
-
};
Board Specific portion:
diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
index 12bbede..bac515b 100644
--- a/drivers/video/exynos/exynos_dp_core.c
+++ b/drivers/video/exynos/exynos_dp_core.c
@@ -19,6 +19,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/of.h>
+#include <linux/phy/phy.h>
#include <video/exynos_dp.h>
@@ -960,84 +961,15 @@ static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev)
return ERR_PTR(-EINVAL);
}
- return pd;
-}
-
-static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp)
-{
- struct device_node *dp_phy_node = of_node_get(dp->dev->of_node);
- u32 phy_base;
- int ret = 0;
-
- dp_phy_node = of_find_node_by_name(dp_phy_node, "dptx-phy");
- if (!dp_phy_node) {
- dev_err(dp->dev, "could not find dptx-phy node\n");
- return -ENODEV;
- }
-
- if (of_property_read_u32(dp_phy_node, "reg", &phy_base)) {
- dev_err(dp->dev, "failed to get reg for dptx-phy\n");
- ret = -EINVAL;
- goto err;
- }
-
- if (of_property_read_u32(dp_phy_node, "samsung,enable-mask",
- &dp->enable_mask)) {
- dev_err(dp->dev, "failed to get enable-mask for dptx-phy\n");
- ret = -EINVAL;
- goto err;
- }
-
- dp->phy_addr = ioremap(phy_base, SZ_4);
- if (!dp->phy_addr) {
- dev_err(dp->dev, "failed to ioremap dp-phy\n");
- ret = -ENOMEM;
- goto err;
- }
-
-err:
- of_node_put(dp_phy_node);
-
- return ret;
-}
-
-static void exynos_dp_phy_init(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = __raw_readl(dp->phy_addr);
- reg |= dp->enable_mask;
- __raw_writel(reg, dp->phy_addr);
-}
-
-static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
-{
- u32 reg;
+ pd->phy_label = "dp";
In the case of non-dt boot, this phy_label should have ideally come from
platform code.
No, this is NOT the case of non-dt.
'pd->phy_label = "dp";' is included in exynos_dp_dt_parse_pdata(),
not exynos_dp_phy_exit().
Also, exynos_dp_dt_parse_pdata() is called in the case of dt.
ah.. right. Do you support non-dt boot. I dont see any modifications in
the platform code?
Thanks
Kishon
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