[U-Boot] [PATCH v3 49/62] rockchip: clk: Update the rk3288 driver to support of-platdata

[Simon Glass]

Add support for of-platdata with rk3288. This requires decoding the
of-platdata struct and setting up the devices from that. Also the driver
needs to be renamed to match the string that of-platdata will search for.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v3:
- Rebase to master

Changes in v2: None

 drivers/clk/clk_rk3288.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk_rk3288.c b/drivers/clk/clk_rk3288.c
index 1c2bf64..679f010 100644
--- a/drivers/clk/clk_rk3288.c
+++ b/drivers/clk/clk_rk3288.c
@@ -7,7 +7,9 @@
 #include <common.h>
 #include <clk-uclass.h>
 #include <dm.h>
+#include <dt-structs.h>
 #include <errno.h>
+#include <mapmem.h>
 #include <syscon.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
@@ -21,6 +23,12 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+struct rk3288_clk_plat {
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+	struct dtd_rockchip_rk3288_cru dtd;
+#endif
+};
+
 struct rk3288_clk_priv {
 	struct rk3288_grf *grf;
 	struct rk3288_cru *cru;
@@ -785,9 +793,11 @@ static struct clk_ops rk3288_clk_ops = {
 
 static int rk3288_clk_ofdata_to_platdata(struct udevice *dev)
 {
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
 	struct rk3288_clk_priv *priv = dev_get_priv(dev);
 
 	priv->cru = (struct rk3288_cru *)dev_get_addr(dev);
+#endif
 
 	return 0;
 }
@@ -800,6 +810,11 @@ static int rk3288_clk_probe(struct udevice *dev)
 	if (IS_ERR(priv->grf))
 		return PTR_ERR(priv->grf);
 #ifdef CONFIG_SPL_BUILD
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+	struct rk3288_clk_plat *plat = dev_get_platdata(dev);
+
+	priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
+#endif
 	rkclk_init(priv->cru, priv->grf);
 #endif
 
@@ -823,11 +838,12 @@ static const struct udevice_id rk3288_clk_ids[] = {
 	{ }
 };
 
-U_BOOT_DRIVER(clk_rk3288) = {
-	.name		= "clk_rk3288",
+U_BOOT_DRIVER(rockchip_rk3288_cru) = {
+	.name		= "rockchip_rk3288_cru",
 	.id		= UCLASS_CLK,
 	.of_match	= rk3288_clk_ids,
 	.priv_auto_alloc_size = sizeof(struct rk3288_clk_priv),
+	.platdata_auto_alloc_size = sizeof(struct rk3288_clk_plat),
 	.ops		= &rk3288_clk_ops,
 	.bind		= rk3288_clk_bind,
 	.ofdata_to_platdata	= rk3288_clk_ofdata_to_platdata,
-- 
2.8.0.rc3.226.g39d4020