From: Rafał Miłecki <zajec5@gmail.com>
Date: Tue, 26 Feb 2013 09:02:23 +0000 (+0100)
Subject: bcma: implement disabling PLLs
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c722839cc856cee5f7f1bb833a0f36c86d0bbe8f;p=linux-beck.git

bcma: implement disabling PLLs

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
index 03bbe104338f..17b26ce7e051 100644
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -104,7 +104,13 @@ void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on)
 		if (i)
 			bcma_err(core->bus, "PLL enable timeout\n");
 	} else {
-		bcma_warn(core->bus, "Disabling PLL not supported yet!\n");
+		/*
+		 * Mask the PLL but don't wait for it to be disabled. PLL may be
+		 * shared between cores and will be still up if there is another
+		 * core using it.
+		 */
+		bcma_mask32(core, BCMA_CLKCTLST, ~req);
+		bcma_read32(core, BCMA_CLKCTLST);
 	}
 }
 EXPORT_SYMBOL_GPL(bcma_core_pll_ctl);