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authorH. Peter Anvin <hpa@linux.intel.com>2013-01-29 23:59:09 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2013-01-30 00:10:15 +0100
commitde65d816aa44f9ddd79861ae21d75010cc1fd003 (patch)
tree04a637a43b2e52a733d0dcb7595a47057571e7da /arch/arm/mach-omap2/cm33xx.c
parentx86, mm: Let "memmap=" take more entries one time (diff)
parentx86, boot: Sanitize boot_params if not zeroed on creation (diff)
downloadlinux-de65d816aa44f9ddd79861ae21d75010cc1fd003.tar.xz
linux-de65d816aa44f9ddd79861ae21d75010cc1fd003.zip
Merge remote-tracking branch 'origin/x86/boot' into x86/mm2
Coming patches to x86/mm2 require the changes and advanced baseline in x86/boot. Resolved Conflicts: arch/x86/kernel/setup.c mm/nobootmem.c Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/arm/mach-omap2/cm33xx.c')
-rw-r--r--arch/arm/mach-omap2/cm33xx.c58
1 files changed, 56 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 13f56eafef03..058ce3c0873e 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -22,8 +22,7 @@
#include <linux/err.h>
#include <linux/io.h>
-#include <plat/common.h>
-
+#include "clockdomain.h"
#include "cm.h"
#include "cm33xx.h"
#include "cm-regbits-34xx.h"
@@ -311,3 +310,58 @@ void am33xx_cm_module_disable(u16 inst, s16 cdoffs, u16 clkctrl_offs)
v &= ~AM33XX_MODULEMODE_MASK;
am33xx_cm_write_reg(v, inst, clkctrl_offs);
}
+
+/*
+ * Clockdomain low-level functions
+ */
+
+static int am33xx_clkdm_sleep(struct clockdomain *clkdm)
+{
+ am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs);
+ return 0;
+}
+
+static int am33xx_clkdm_wakeup(struct clockdomain *clkdm)
+{
+ am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs);
+ return 0;
+}
+
+static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm)
+{
+ am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+}
+
+static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm)
+{
+ am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+}
+
+static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm)
+{
+ if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
+ return am33xx_clkdm_wakeup(clkdm);
+
+ return 0;
+}
+
+static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm)
+{
+ bool hwsup = false;
+
+ hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
+
+ if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP))
+ am33xx_clkdm_sleep(clkdm);
+
+ return 0;
+}
+
+struct clkdm_ops am33xx_clkdm_operations = {
+ .clkdm_sleep = am33xx_clkdm_sleep,
+ .clkdm_wakeup = am33xx_clkdm_wakeup,
+ .clkdm_allow_idle = am33xx_clkdm_allow_idle,
+ .clkdm_deny_idle = am33xx_clkdm_deny_idle,
+ .clkdm_clk_enable = am33xx_clkdm_clk_enable,
+ .clkdm_clk_disable = am33xx_clkdm_clk_disable,
+};