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From fe4c14f1d934801361e9c9e2456f8250af2fffbd Mon Sep 17 00:00:00 2001
From: Martin Sperl <kernel@martin.sperl.org>
Date: Fri, 2 Sep 2016 16:45:27 +0100
Subject: [PATCH] Register the clocks early during the boot process, so
that special/critical clocks can get enabled early on in the boot process
avoiding the risk of disabling a clock, pll_divider or pll when a claiming
driver fails to install propperly - maybe it needs to defer.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
---
drivers/clk/bcm/clk-bcm2835.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -2267,8 +2267,15 @@ static int bcm2835_clk_probe(struct plat
if (ret)
return ret;
- return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
+ ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
&cprman->onecell);
+ if (ret)
+ return ret;
+
+ /* note that we have registered all the clocks */
+ dev_dbg(dev, "registered %d clocks\n", asize);
+
+ return 0;
}
static const struct cprman_plat_data cprman_bcm2835_plat_data = {
@@ -2294,7 +2301,11 @@ static struct platform_driver bcm2835_cl
.probe = bcm2835_clk_probe,
};
-builtin_platform_driver(bcm2835_clk_driver);
+static int __init __bcm2835_clk_driver_init(void)
+{
+ return platform_driver_register(&bcm2835_clk_driver);
+}
+core_initcall(__bcm2835_clk_driver_init);
MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
MODULE_DESCRIPTION("BCM2835 clock driver");
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