From: Tony Lindgren tony@atomide.com
[ Upstream commit 17529d43b21c72466e9109d602c6f5c360a1a9e8 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/am33xx-l4.dtsi | 4 +++- arch/arm/mach-omap2/omap_hwmod_33xx_data.c | 5 +++-- 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 1515f4f914999..3287cf695b5a4 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 c965af275e341..81d9912f17c85 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, };