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ARM: tegra: pinctrl: make pmux_func values consistent on Tegra20

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For consistency with other SoCs, modify Tegra20's enum pmux_func to:

* Remove PMUX_FUNC values that aren't real
* Use the same PMUX_FUNC_RSVD[1-4] values, and ensure (RSVD1 & 3)==0;
  this will be assumed by pinmux_set_func() in a future patch.

Unfortunately, PMUX_FUNC_RSVD is still used in the pin macros. Use a
private define inside the driver to prevent this from causing compilaton
errors. This will be cleaned up when the pin tables are re-written in a
later patch in this series.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2014-03-21 12:28:51 -06:00 committed by Tom Warren
parent dd45948dd7
commit 6ac1e542c6
2 changed files with 10 additions and 11 deletions
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4
arch/arm/cpu/tegra20-common/pinmux.c
View File

@ -307,7 +307,9 @@ struct tegra_pingroup_desc {
/* A pin group number which is not used */
#define PIN_RESERVED \
PIN(NONE, NONE, NONE, NONE, NONE, NONE, NONE)
PIN(NONE, NONE, RSVD, RSVD, RSVD, RSVD, RSVD)
#define PMUX_FUNC_RSVD ((enum pmux_func)-1)
const struct tegra_pingroup_desc tegra_soc_pingroups[PINGRP_COUNT] = {
PIN(ATA, NAND, IDE, NAND, GMI, RSVD, IDE),

17
arch/arm/include/asm/arch-tegra20/pinmux.h
View File

@ -228,21 +228,18 @@ enum pmux_func {
PMUX_FUNC_VI_SENSOR_CLK,
PMUX_FUNC_XIO,
/* These don't have a name, but can be used in the table */
PMUX_FUNC_RSVD1,
PMUX_FUNC_RSVD2,
PMUX_FUNC_RSVD3,
PMUX_FUNC_RSVD4,
PMUX_FUNC_RSVD, /* Not valid and should not be used */
PMUX_FUNC_COUNT,
PMUX_FUNC_NONE = -1,
PMUX_FUNC_RSVD1 = 0x8000,
PMUX_FUNC_RSVD2 = 0x8001,
PMUX_FUNC_RSVD3 = 0x8002,
PMUX_FUNC_RSVD4 = 0x8003,
};
/* return 1 if a pmux_func is in range */
#define pmux_func_isvalid(func) ((func) >= 0 && (func) < PMUX_FUNC_COUNT && \
(func) != PMUX_FUNC_RSVD)
#define pmux_func_isvalid(func) \
((((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) ||\
(((func) >= PMUX_FUNC_RSVD1) && ((func) <= PMUX_FUNC_RSVD4)))
/* The pullup/pulldown state of a pin group */
enum pmux_pull {