ARM: OMAP2+: Add missing LCDC midlemode for am335x

TRM "Table 13-34. SYSCONFIG Register Field Descriptions" lists both
standbymode and idlemode that should be just the sidle and midle
registers where midle is currently unconfigured for lcdc_sysc. As
the dts data has been generated based on lcdc_sysc, we now have an
empty "ti,sysc-midle" property.

And so we currently get a warning for lcdc because of a difference
with dts provided configuration compared to the legacy platform
data. This is because lcdc has SYSC_HAS_MIDLEMODE configured in
the platform data without configuring the modes.

Let's fix the issue by adding the missing midlemode to lcdc_sysc,
and configuring the "ti,sysc-midle" property based on the TRM
values.

Fixes: f711c575cfec ("ARM: dts: am335x: Add l4 interconnect hierarchy and ti-sysc data")
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Robert Nelson <robertcnelson@gmail.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi
index 1515f4f91499..3287cf695b5a 100644
--- a/arch/arm/boot/dts/am33xx-l4.dtsi
+++ b/arch/arm/boot/dts/am33xx-l4.dtsi
@@ -2038,7 +2038,9 @@
                         reg = <0xe000 0x4>,
                               <0xe054 0x4>;
                         reg-names = "rev", "sysc";
-                        ti,sysc-midle ;
+                        ti,sysc-midle = <SYSC_IDLE_FORCE>,
+                                        <SYSC_IDLE_NO>,
+                                        <SYSC_IDLE_SMART>;
                         ti,sysc-sidle = <SYSC_IDLE_FORCE>,
                                         <SYSC_IDLE_NO>,
                                         <SYSC_IDLE_SMART>;
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index c965af275e34..81d9912f17c8 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -231,8 +231,9 @@ static struct omap_hwmod am33xx_control_hwmod = {
 static struct omap_hwmod_class_sysconfig lcdc_sysc = {
         .rev_offs       = 0x0,
         .sysc_offs      = 0x54,
-        .sysc_flags     = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
-        .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+        .sysc_flags     = SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE,
+        .idlemodes      = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+                          MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART,
         .sysc_fields    = &omap_hwmod_sysc_type2,
 };