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Omap fixes for the -rc cycle, including a fix for potential hardware

Browse source 
breakage on BeagleBones:
 
 - BeagleBones don't support RTC-only mode, it can cause hardware
   damage if system-power-controller is specified without
   ti,pmic-shutdown-controller
 
 - Fix a recent regression to am3517 SoCs caused by the recent clock
   move that was not noticed until now despite automated boot
   testing
 
 - Fix a regression for n900 touchscreen triggered by recent
   recent input changes
 
 - Fix compatible property for dm816x USB to avoid errors with
   USB Ethernet
 
 - Fix oops for omap3 when built with CONFIG_THUMB2_KERNEL
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Merge tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge omap fixes for v4.1, urgent fix to avoid potential hardware damage From Tony Lindgren:

Omap fixes for the -rc cycle, including a fix for potential hardware
breakage on BeagleBones:

- BeagleBones don't support RTC-only mode, it can cause hardware
  damage if system-power-controller is specified without
  ti,pmic-shutdown-controller

- Fix a recent regression to am3517 SoCs caused by the recent clock
  move that was not noticed until now despite automated boot
  testing

- Fix a regression for n900 touchscreen triggered by recent
  recent input changes

- Fix compatible property for dm816x USB to avoid errors with
  USB Ethernet

- Fix oops for omap3 when built with CONFIG_THUMB2_KERNEL

* tag 'omap-for-v4.1/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am335x-boneblack: disable RTC-only sleep to avoid hardware damage
  ARM: dts: AM35xx: fix system control module clocks
  ARM: dts: Fix n900 dts file to work around 4.1 touchscreen regression on n900
  ARM: dts: Fix dm816x to use right compatible flag for MUSB
  ARM: OMAP3: Fix booting with thumb2 kernel
This commit is contained in:
Kevin Hilman 2015-06-08 10:31:34 -07:00
parent 9947c34cf7 7a6cb0abe1
commit 0a68c6bc7c
6 changed files with 34 additions and 33 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
View file

@ -32,8 +32,8 @@ Example:
touchscreen-fuzz-x = <4>;
touchscreen-fuzz-y = <7>;
touchscreen-fuzz-pressure = <2>;
touchscreen-max-x = <4096>;
touchscreen-max-y = <4096>;
touchscreen-size-x = <4096>;
touchscreen-size-y = <4096>;
touchscreen-max-pressure = <2048>;
ti,x-plate-ohms = <280>;

19
arch/arm/boot/dts/am335x-bone-common.dtsi
View file

@ -223,6 +223,25 @@
/include/ "tps65217.dtsi"
&tps {
/*
* Configure pmic to enter OFF-state instead of SLEEP-state ("RTC-only
* mode") at poweroff. Most BeagleBone versions do not support RTC-only
* mode and risk hardware damage if this mode is entered.
*
* For details, see linux-omap mailing list May 2015 thread
* [PATCH] ARM: dts: am335x-bone* enable pmic-shutdown-controller
* In particular, messages:
* http://www.spinics.net/lists/linux-omap/msg118585.html
* http://www.spinics.net/lists/linux-omap/msg118615.html
*
* You can override this later with
* &tps { /delete-property/ ti,pmic-shutdown-controller; }
* if you want to use RTC-only mode and made sure you are not affected
* by the hardware problems. (Tip: double-check by performing a current
* measurement after shutdown: it should be less than 1 mA.)
*/
ti,pmic-shutdown-controller;
regulators {
dcdc1_reg: regulator@0 {
regulator-name = "vdds_dpr";

14
arch/arm/boot/dts/am35xx-clocks.dtsi
View file

@ -12,7 +12,7 @@
#clock-cells = <0>;
compatible = "ti,am35xx-gate-clock";
clocks = <&ipss_ick>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <1>;
};
@ -20,7 +20,7 @@
#clock-cells = <0>;
compatible = "ti,gate-clock";
clocks = <&rmii_ck>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <9>;
};
@ -28,7 +28,7 @@
#clock-cells = <0>;
compatible = "ti,am35xx-gate-clock";
clocks = <&ipss_ick>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <2>;
};
@ -36,7 +36,7 @@
#clock-cells = <0>;
compatible = "ti,gate-clock";
clocks = <&pclk_ck>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <10>;
};
@ -44,7 +44,7 @@
#clock-cells = <0>;
compatible = "ti,am35xx-gate-clock";
clocks = <&ipss_ick>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <0>;
};
@ -52,7 +52,7 @@
#clock-cells = <0>;
compatible = "ti,gate-clock";
clocks = <&sys_ck>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <8>;
};
@ -60,7 +60,7 @@
#clock-cells = <0>;
compatible = "ti,am35xx-gate-clock";
clocks = <&sys_ck>;
reg = <0x059c>;
reg = <0x032c>;
ti,bit-shift = <3>;
};
};

4
arch/arm/boot/dts/dm816x.dtsi
View file

@ -382,7 +382,7 @@
ti,hwmods = "usb_otg_hs";
usb0: usb@47401000 {
compatible = "ti,musb-am33xx";
compatible = "ti,musb-dm816";
reg = <0x47401400 0x400
0x47401000 0x200>;
reg-names = "mc", "control";
@ -422,7 +422,7 @@
};
usb1: usb@47401800 {
compatible = "ti,musb-am33xx";
compatible = "ti,musb-dm816";
reg = <0x47401c00 0x400
0x47401800 0x200>;
reg-names = "mc", "control";

4
arch/arm/boot/dts/omap3-n900.dts
View file

@ -832,8 +832,8 @@
touchscreen-fuzz-x = <4>;
touchscreen-fuzz-y = <7>;
touchscreen-fuzz-pressure = <2>;
touchscreen-max-x = <4096>;
touchscreen-max-y = <4096>;
touchscreen-size-x = <4096>;
touchscreen-size-y = <4096>;
touchscreen-max-pressure = <2048>;
ti,x-plate-ohms = <280>;

22
arch/arm/mach-omap2/sleep34xx.S
View file

@ -203,23 +203,8 @@ save_context_wfi:
*/
ldr r1, kernel_flush
blx r1
/*
* The kernel doesn't interwork: v7_flush_dcache_all in particluar will
* always return in Thumb state when CONFIG_THUMB2_KERNEL is enabled.
* This sequence switches back to ARM. Note that .align may insert a
* nop: bx pc needs to be word-aligned in order to work.
*/
THUMB( .thumb )
THUMB( .align )
THUMB( bx pc )
THUMB( nop )
.arm
b omap3_do_wfi
/*
* Local variables
*/
ENDPROC(omap34xx_cpu_suspend)
omap3_do_wfi_sram_addr:
.word omap3_do_wfi_sram
kernel_flush:
@ -364,10 +349,7 @@ exit_nonoff_modes:
* ===================================
*/
ldmfd sp!, {r4 - r11, pc} @ restore regs and return
/*
* Local variables
*/
ENDPROC(omap3_do_wfi)
sdrc_power:
.word SDRC_POWER_V
cm_idlest1_core: