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pinctrl: atlas6: Add I2S external clock input pingroup 

The I2S controller can use the external clock as reference clock with
master mode. But based on different hardware or software design, this
external clock might be needed or not needed.
So the external input pin can be an independent pinctrl group, and the
card driver can decice to get it or not.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Rongjun Ying 2014-08-18 16:49:24 +08:00 committed by Linus Walleij
parent ed36c1a06f
commit 086b8904b4
1 changed files with 21 additions and 0 deletions
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21
drivers/pinctrl/sirf/pinctrl-atlas6.c
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@ -394,6 +394,23 @@ static const struct sirfsoc_padmux i2s_mclk_padmux = {
static const unsigned i2s_mclk_pins[] = { 42 };
static const struct sirfsoc_muxmask i2s_ext_clk_input_muxmask[] = {
{
.group = 1,
.mask = BIT(19),
},
};
static const struct sirfsoc_padmux i2s_ext_clk_input_padmux = {
.muxmask_counts = ARRAY_SIZE(i2s_ext_clk_input_muxmask),
.muxmask = i2s_ext_clk_input_muxmask,
.ctrlreg = SIRFSOC_RSC_PIN_MUX,
.funcmask = BIT(2),
.funcval = BIT(2),
};
static const unsigned i2s_ext_clk_input_pins[] = { 51 };
static const struct sirfsoc_muxmask i2s_muxmask[] = {
{
.group = 3,
@ -982,6 +999,7 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
SIRFSOC_PIN_GROUP("uart1_route_io_usb1grp", uart1_route_io_usb1_pins),
SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
SIRFSOC_PIN_GROUP("i2smclkgrp", i2s_mclk_pins),
SIRFSOC_PIN_GROUP("i2s_ext_clk_inputgrp", i2s_ext_clk_input_pins),
SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
SIRFSOC_PIN_GROUP("i2s_no_dingrp", i2s_no_din_pins),
SIRFSOC_PIN_GROUP("i2s_6chngrp", i2s_6chn_pins),
@ -1035,6 +1053,7 @@ static const char * const
uart1_route_io_usb1grp[] = { "uart1_route_io_usb1grp" };
static const char * const pulse_countgrp[] = { "pulse_countgrp" };
static const char * const i2smclkgrp[] = { "i2smclkgrp" };
static const char * const i2s_ext_clk_inputgrp[] = { "i2s_ext_clk_inputgrp" };
static const char * const i2sgrp[] = { "i2sgrp" };
static const char * const i2s_no_dingrp[] = { "i2s_no_dingrp" };
static const char * const i2s_6chngrp[] = { "i2s_6chngrp" };
@ -1096,6 +1115,8 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
uart1_route_io_usb1grp, uart1_route_io_usb1_padmux),
SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
SIRFSOC_PMX_FUNCTION("i2s_mclk", i2smclkgrp, i2s_mclk_padmux),
SIRFSOC_PMX_FUNCTION("i2s_ext_clk_input", i2s_ext_clk_inputgrp,
i2s_ext_clk_input_padmux),
SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
SIRFSOC_PMX_FUNCTION("i2s_no_din", i2s_no_dingrp, i2s_no_din_padmux),
SIRFSOC_PMX_FUNCTION("i2s_6chn", i2s_6chngrp, i2s_6chn_padmux),