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| author | Shawn Guo <shawn.guo@linaro.org> | 2013-02-20 10:32:52 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-04-09 22:52:50 +0800 |
| commit | e16415313c9b00b1adc313e85c2c8a81febe0b98 (patch) | |
| tree | b1e804b1bb647f3984036d9f9befbe53023bc519 /arch/arm/boot/dts/imx6q-arm2.dts | |
| parent | 36dffd8f49bc1364998db81bee739ea4574d88f7 (diff) | |
| download | blackbird-op-linux-e16415313c9b00b1adc313e85c2c8a81febe0b98.tar.gz blackbird-op-linux-e16415313c9b00b1adc313e85c2c8a81febe0b98.zip | |
pinctrl: imx: move hard-coding data into device tree
Currently, all imx pinctrl drivers maintain a big array of struct
imx_pin_reg which hard-codes data like register offset and mux mode
setting for each pin function. Every time a new imx SoC support is
added, we need to add such a big mount of data. With moving to single
kernel build, it's only matter of time to be blamed on memory consuming.
With DTC pre-processor support in place, the patch moves all these data
into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and
changing the PIN_FUNC_ID parsing code a little bit.
The pin id gets re-numbered based on mux register offset, or config
register offset if the pin has no mux register, so that kernel can
identify the pin id from register offsets provided by device tree.
As a bonus point of the change, those arbitrary magic numbers standing
for particular PIN_FUNC_ID in device tree sources are now replaced by
macros to improve the readability of dts files.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6q-arm2.dts')
| -rw-r--r-- | arch/arm/boot/dts/imx6q-arm2.dts | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/imx6q-arm2.dts b/arch/arm/boot/dts/imx6q-arm2.dts index 8f6ec9a948f0..4e54fde591bd 100644 --- a/arch/arm/boot/dts/imx6q-arm2.dts +++ b/arch/arm/boot/dts/imx6q-arm2.dts @@ -57,7 +57,7 @@ hog { pinctrl_hog: hoggrp { fsl,pins = < - 176 0x80000000 /* MX6Q_PAD_EIM_D25__GPIO_3_25 */ + MX6Q_PAD_EIM_D25__GPIO3_IO25 0x80000000 >; }; }; @@ -65,8 +65,8 @@ arm2 { pinctrl_usdhc3_arm2: usdhc3grp-arm2 { fsl,pins = < - 1363 0x80000000 /* MX6Q_PAD_NANDF_CS0__GPIO_6_11 */ - 1369 0x80000000 /* MX6Q_PAD_NANDF_CS1__GPIO_6_14 */ + MX6Q_PAD_NANDF_CS0__GPIO6_IO11 0x80000000 + MX6Q_PAD_NANDF_CS1__GPIO6_IO14 0x80000000 >; }; }; |
