bcma: implement disabling PLLs

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

bcma: implement disabling PLLs
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rafał Miłecki · John W. Linville
1 parent 93ecbd64ef
Showing 1 changed file with 7 additions and 1 deletions Side-by-side Diff
drivers/bcma/core.c
@@ -104,7 +104,13 @@
 		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);
...	...	@@ -104,7 +104,13 @@
104	104	if (i)
105	105	bcma_err(core->bus, "PLL enable timeout\n");
106	106	} else {
107		- bcma_warn(core->bus, "Disabling PLL not supported yet!\n");
	107	+ /*
	108	+ * Mask the PLL but don't wait for it to be disabled. PLL may be
	109	+ * shared between cores and will be still up if there is another
	110	+ * core using it.
	111	+ */
	112	+ bcma_mask32(core, BCMA_CLKCTLST, ~req);
	113	+ bcma_read32(core, BCMA_CLKCTLST);
108	114	}
109	115	}
110	116	EXPORT_SYMBOL_GPL(bcma_core_pll_ctl);