Register the clocks early during the boot process,
authorMartin Sperl <kernel@martin.sperl.org>
Fri, 2 Sep 2016 15:45:27 +0000 (16:45 +0100)
committerpopcornmix <popcornmix@gmail.com>
Mon, 20 Feb 2017 12:17:46 +0000 (12:17 +0000)
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

index 7040c6426e35c11608121893b662c601cd8d6543..21e2a538ff0d0ab4e63adff9b93705f3d45fa15d 100644 (file)
@@ -1903,8 +1903,15 @@ static int bcm2835_clk_probe(struct platform_device *pdev)
        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 of_device_id bcm2835_clk_of_match[] = {
@@ -1921,7 +1928,11 @@ static struct platform_driver bcm2835_clk_driver = {
        .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");