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authorDave Gerlach <d-gerlach@ti.com>2015-02-27 19:10:26 -0600
committerTony Lindgren <tony@atomide.com>2015-03-06 09:12:56 -0800
commit424e0f039bfa8a51fb5c5178b6ece8baa4996469 (patch)
tree8f85bb2f70388aeb9de66bc8714aba7cae531eb4 /include/dt-bindings
parent38f5c8ba300f8d5d327a14ea4d48522b38baf424 (diff)
downloadlinux-424e0f039bfa8a51fb5c5178b6ece8baa4996469.tar.bz2
ARM: dts: am33xx: fix SLEWCTRL_FAST pinctrl binding
According to AM335x TRM, Document spruh73l, Revised February 2015, Section 9.2.2 Pad Control Registers, setting bit 6 of the pad control registers actually sets the SLEWCTRL value to slow rather than fast as the current macro indicates. Introduce a new macro, SLEWCTRL_SLOW, that sets the bit, and modify SLEWCTRL_FAST to 0 but keep it for completeness. Current users of the macro (i2c and mdio) are left unmodified as SLEWCTRL_FAST was the macro used and actual desired state. Tested on am335x-gp-evm with no difference in software performance seen. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'include/dt-bindings')
-rw-r--r--include/dt-bindings/pinctrl/am33xx.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h
index 2fbc804e1a45..226f77246a70 100644
--- a/include/dt-bindings/pinctrl/am33xx.h
+++ b/include/dt-bindings/pinctrl/am33xx.h
@@ -13,7 +13,8 @@
#define PULL_DISABLE (1 << 3)
#define INPUT_EN (1 << 5)
-#define SLEWCTRL_FAST (1 << 6)
+#define SLEWCTRL_SLOW (1 << 6)
+#define SLEWCTRL_FAST 0
/* update macro depending on INPUT_EN and PULL_ENA */
#undef PIN_OUTPUT