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authorDavid Lechner <david@lechnology.com>2018-05-25 21:11:48 +0300
committerMichael Turquette <mturquette@baylibre.com>2018-05-30 22:48:39 +0300
commit17d8bacf19bb5ea5f258f9c0644d5688f9ba03a9 (patch)
tree0c9942c7b0fffd698c7e627b7c644e9c264002fa /drivers/clk/davinci
parent76c9dd9dbd6459f1faf2b10351eb3d3f90255fa1 (diff)
downloadlinux-17d8bacf19bb5ea5f258f9c0644d5688f9ba03a9.tar.xz
clk: davinci: da850-pll: change PLL0 to CLK_OF_DECLARE
PLL0 on davinci/da850-type device needs to be registered early in boot because it is needed for clocksource/clockevent. Change the driver to use CLK_OF_DECLARE for this special case. Reviewed-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/20180525181150.17873-8-david@lechnology.com
Diffstat (limited to 'drivers/clk/davinci')
-rw-r--r--drivers/clk/davinci/pll-da850.c21
-rw-r--r--drivers/clk/davinci/pll.c4
-rw-r--r--drivers/clk/davinci/pll.h2
3 files changed, 21 insertions, 6 deletions
diff --git a/drivers/clk/davinci/pll-da850.c b/drivers/clk/davinci/pll-da850.c
index 59cc2e3733f9..0f7198191ea2 100644
--- a/drivers/clk/davinci/pll-da850.c
+++ b/drivers/clk/davinci/pll-da850.c
@@ -13,6 +13,8 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mfd/da8xx-cfgchip.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_address.h>
#include <linux/of.h>
#include <linux/types.h>
@@ -136,11 +138,22 @@ static const struct davinci_pll_sysclk_info *da850_pll0_sysclk_info[] = {
NULL
};
-int of_da850_pll0_init(struct device *dev, void __iomem *base, struct regmap *cfgchip)
+void of_da850_pll0_init(struct device_node *node)
{
- return of_davinci_pll_init(dev, dev->of_node, &da850_pll0_info,
- &da850_pll0_obsclk_info,
- da850_pll0_sysclk_info, 7, base, cfgchip);
+ void __iomem *base;
+ struct regmap *cfgchip;
+
+ base = of_iomap(node, 0);
+ if (!base) {
+ pr_err("%s: ioremap failed\n", __func__);
+ return;
+ }
+
+ cfgchip = syscon_regmap_lookup_by_compatible("ti,da830-cfgchip");
+
+ of_davinci_pll_init(NULL, node, &da850_pll0_info,
+ &da850_pll0_obsclk_info,
+ da850_pll0_sysclk_info, 7, base, cfgchip);
}
static const struct davinci_pll_clk_info da850_pll1_info = {
diff --git a/drivers/clk/davinci/pll.c b/drivers/clk/davinci/pll.c
index 2eb981e61185..84a343060bc8 100644
--- a/drivers/clk/davinci/pll.c
+++ b/drivers/clk/davinci/pll.c
@@ -859,8 +859,10 @@ static struct davinci_pll_platform_data *davinci_pll_get_pdata(struct device *de
return pdata;
}
+/* needed in early boot for clocksource/clockevent */
+CLK_OF_DECLARE(da850_pll0, "ti,da850-pll0", of_da850_pll0_init);
+
static const struct of_device_id davinci_pll_of_match[] = {
- { .compatible = "ti,da850-pll0", .data = of_da850_pll0_init },
{ .compatible = "ti,da850-pll1", .data = of_da850_pll1_init },
{ }
};
diff --git a/drivers/clk/davinci/pll.h b/drivers/clk/davinci/pll.h
index 562652fc0759..b2e5c4496645 100644
--- a/drivers/clk/davinci/pll.h
+++ b/drivers/clk/davinci/pll.h
@@ -123,7 +123,7 @@ int of_davinci_pll_init(struct device *dev, struct device_node *node,
/* Platform-specific callbacks */
int da850_pll1_init(struct device *dev, void __iomem *base, struct regmap *cfgchip);
-int of_da850_pll0_init(struct device *dev, void __iomem *base, struct regmap *cfgchip);
+void of_da850_pll0_init(struct device_node *node);
int of_da850_pll1_init(struct device *dev, void __iomem *base, struct regmap *cfgchip);
int dm355_pll2_init(struct device *dev, void __iomem *base, struct regmap *cfgchip);