diff options
| author | Stephan Gerhold <stephan@gerhold.net> | 2019-11-17 23:54:39 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-19 17:49:22 +0300 |
| commit | 58afa801ef22bdc47ed4a1f1d4d9e52ca25777e7 (patch) | |
| tree | eecd0375a88308e2917546cfc89a8c8e9aed7b4d /drivers/pinctrl/nomadik | |
| parent | 08a96e43e349887c03dfd47e0021bfe43f0ffb47 (diff) | |
| download | linux-58afa801ef22bdc47ed4a1f1d4d9e52ca25777e7.tar.xz | |
pinctrl: nomadik: db8500: Add mc0_a_2 pin group without direction control
Some devices do not make use of the CMD0/DAT0/DAT2 direction control
pins of the MMC/SD card 0 interface. In this case we should leave
those pins unconfigured.
A similar case already exists for "mc1_a_1" vs "mc1_a_2"
when the MC1_FBCLK pin is not used.
Add a new "mc0_a_2" pin group which is equal to "mc0_a_1" except
with the MC0_CMDDIR, MC0_DAT0DIR and MC0_DAT2DIR pins removed.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191117205439.239211-1-stephan@gerhold.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/nomadik')
| -rw-r--r-- | drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c index 726c0b5501fa..b9246e0b4fe2 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c @@ -391,6 +391,15 @@ static const unsigned mc0_a_1_pins[] = { DB8500_PIN_AC2, /* MC0_CMDDIR */ DB8500_PIN_AA2, /* MC0_DAT2 */ DB8500_PIN_AA1 /* MC0_DAT3 */ }; +/* MMC/SD card 0 interface without CMD/DAT0/DAT2 direction control */ +static const unsigned mc0_a_2_pins[] = { DB8500_PIN_AA3, /* MC0_FBCLK */ + DB8500_PIN_AA4, /* MC0_CLK */ + DB8500_PIN_AB2, /* MC0_CMD */ + DB8500_PIN_Y4, /* MC0_DAT0 */ + DB8500_PIN_Y2, /* MC0_DAT1 */ + DB8500_PIN_AA2, /* MC0_DAT2 */ + DB8500_PIN_AA1 /* MC0_DAT3 */ +}; /* Often only 4 bits are used, then these are not needed (only used for MMC) */ static const unsigned mc0_dat47_a_1_pins[] = { DB8500_PIN_W2, /* MC0_DAT4 */ DB8500_PIN_W3, /* MC0_DAT5 */ @@ -670,6 +679,7 @@ static const struct nmk_pingroup nmk_db8500_groups[] = { DB8500_PIN_GROUP(msp0tfstck_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(msp0rfsrck_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc0_a_2, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0_dat47_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0dat31dir_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(msp1txrx_a_1, NMK_GPIO_ALT_A), @@ -828,7 +838,7 @@ DB8500_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2"); */ DB8500_FUNC_GROUPS(msp0, "msp0txrx_a_1", "msp0tfstck_a_1", "msp0rfstck_a_1", "msp0txrx_b_1", "msp0sck_b_1"); -DB8500_FUNC_GROUPS(mc0, "mc0_a_1", "mc0_dat47_a_1", "mc0dat31dir_a_1"); +DB8500_FUNC_GROUPS(mc0, "mc0_a_1", "mc0_a_2", "mc0_dat47_a_1", "mc0dat31dir_a_1"); /* MSP0 can swap RX/TX like MSP0 but has no SCK pin available */ DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1"); DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1"); |