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bcma: implement disabling PLLs

Message ID 1361869343-29862-1-git-send-email-zajec5@gmail.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Rafał Miłecki Feb. 26, 2013, 9:02 a.m. UTC 
Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
---
 drivers/bcma/core.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
index 03bbe10..17b26ce 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);