OMAP2/3 clock: Extend find_idlest() to pass back idle state value

Current implementation defines clock idle state indicators based on the
cpu information (cpu_is_omap24xx() or cpu_is_omap34xx()) in a system wide
manner. This patch extends the find_idlest() function in clkops to pass
back the idle state indicator for that clock, thus allowing idle state
indicators to be defined on a per clock basis if required.

This is specifically needed on AM35xx devices as the new IPSS clocks
indicates the idle status (0 is idle, 1 is ready) in a way just
opposite to how its handled in OMAP3 (0 is ready, 1 is idle).

Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
[paul@pwsan.com: updated to apply after commit 98c45457 et seq.]
Signed-off-by: Paul Walmsley <paul@pwsan.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index a48b01ab0e35..94fb8a67b503 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -42,6 +42,7 @@ struct clk *vclk, *sclk, *dclk;
  * @clk: struct clk * being enabled
  * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
  * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
+ * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator
  *
  * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the
  * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE.  This custom function
@@ -50,10 +51,12 @@ struct clk *vclk, *sclk, *dclk;
  */
 static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
                                            void __iomem **idlest_reg,
-                                           u8 *idlest_bit)
+                                           u8 *idlest_bit,
+                                           u8 *idlest_val)
 {
         *idlest_reg = OMAP_CM_REGADDR(CORE_MOD, CM_IDLEST);
         *idlest_bit = clk->enable_bit;
+        *idlest_val = OMAP24XX_CM_IDLEST_VAL;
 }
 
 #else