Davinci: support LPSC SwRstDisable state
The current clock control code always gates the clock (PSC state Disable = 2)
on clk_disable(). Some on-chip peripherals (e.g. LCD controller on TNETV107X)
need to be put into SwRstDisable = 0 on clock disable, to maintain
hardware sanity.
This patch extends the davinci_psc_config() arguments to pass in the desired
module state instead of a boolean enable/disable. Further, clk_disable() now
checks for the PSC_SWRSTDISABLE clk flag before selecting the target state.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index aa0a611..53a0f7b 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -101,10 +101,11 @@
/* Clock flags: SoC-specific flags start at BIT(16) */
#define ALWAYS_ENABLED BIT(1)
-#define CLK_PSC BIT(2)
-#define PSC_DSP BIT(3) /* PSC uses DSP domain, not ARM */
+#define CLK_PSC BIT(2)
+#define PSC_DSP BIT(3) /* PSC uses DSP domain, not ARM */
#define CLK_PLL BIT(4) /* PLL-derived clock */
-#define PRE_PLL BIT(5) /* source is before PLL mult/div */
+#define PRE_PLL BIT(5) /* source is before PLL mult/div */
+#define PSC_SWRSTDISABLE BIT(6) /* Disable state is SwRstDisable */
#define CLK(dev, con, ck) \
{ \