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Message-ID: <20160702000725.GN1190@tuxbot>
Date: Fri, 1 Jul 2016 17:07:25 -0700
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-gpio@...r.kernel.org, Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: [PATCH v2] pinctrl: qcom: add support for EBI2
On Fri 01 Jul 16:56 PDT 2016, Linus Walleij wrote:
> Add support to mux in the second external bus interface as
> follows:
>
> - CS1 and CS2 on GPIO39 and GPIO40 as func 2
> - ADDR_7 thru ADDR_0 on GPIO123 thru GPIO130 as func 1
> - CS4, CS3 and CS0 on GPIO132, GPIO133, GPIO134 as func 1
> - DATA_15 thru DATA_0 on GPIO135 thru GPIO150 as func 1
> - OE on GPIO151 as func 1
> - ADV on GPIO153 as func 1
> - WE on GPIO157 as func 1
>
> This external bus is used on the APQ8060 Dragonboard to connect
> an external SMSC9211 ethernet adapter, but there are many other
> usecases for the EBI2.
>
> Cc: Stephen Boyd <sboyd@...eaurora.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Regards,
Bjorn
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
> ---
> ChangeLog v1->v2:
> - Pick out the exact right pin assignments from the old codebase.
> ---
> drivers/pinctrl/qcom/pinctrl-msm8660.c | 72 +++++++++++++++++++---------------
> 1 file changed, 41 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/pinctrl/qcom/pinctrl-msm8660.c b/drivers/pinctrl/qcom/pinctrl-msm8660.c
> index 3e8f7ac2ac8a..debc90101553 100644
> --- a/drivers/pinctrl/qcom/pinctrl-msm8660.c
> +++ b/drivers/pinctrl/qcom/pinctrl-msm8660.c
> @@ -506,6 +506,7 @@ enum msm8660_functions {
> MSM_MUX_usb_fs2_oe_n,
> MSM_MUX_vfe,
> MSM_MUX_vsens_alarm,
> + MSM_MUX_ebi2,
> MSM_MUX__,
> };
>
> @@ -696,6 +697,14 @@ static const char * const vfe_groups[] = {
> static const char * const vsens_alarm_groups[] = {
> "gpio127"
> };
> +static const char * const ebi2_groups[] = {
> + "gpio39", "gpio40", "gpio123", "gpio124", "gpio125", "gpio126",
> + "gpio127", "gpio128", "gpio129", "gpio130", "gpio132", "gpio133",
> + "gpio134", "gpio135", "gpio136", "gpio137", "gpio138", "gpio139"
> + "gpio140", "gpio141", "gpio142", "gpio143", "gpio144", "gpio145",
> + "gpio146", "gpio147", "gpio148", "gpio149", "gpio150", "gpio151",
> + "gpio153", "gpio157"
> +};
>
> static const struct msm_function msm8660_functions[] = {
> FUNCTION(gpio),
> @@ -749,6 +758,7 @@ static const struct msm_function msm8660_functions[] = {
> FUNCTION(usb_fs2_oe_n),
> FUNCTION(vfe),
> FUNCTION(vsens_alarm),
> + FUNCTION(ebi2),
> };
>
> static const struct msm_pingroup msm8660_groups[] = {
> @@ -791,8 +801,8 @@ static const struct msm_pingroup msm8660_groups[] = {
> PINGROUP(36, gsbi1, _, _, _, _, _, _),
> PINGROUP(37, gsbi2, _, _, _, _, _, _),
> PINGROUP(38, gsbi2, _, _, _, _, _, _),
> - PINGROUP(39, gsbi2, _, mdp_vsync, _, _, _, _),
> - PINGROUP(40, gsbi2, _, _, _, _, _, _),
> + PINGROUP(39, gsbi2, ebi2, mdp_vsync, _, _, _, _),
> + PINGROUP(40, gsbi2, ebi2, _, _, _, _, _),
> PINGROUP(41, gsbi3, mdp_vsync, _, _, _, _, _),
> PINGROUP(42, gsbi3, vfe, _, _, _, _, _),
> PINGROUP(43, gsbi3, _, _, _, _, _, _),
> @@ -875,41 +885,41 @@ static const struct msm_pingroup msm8660_groups[] = {
> PINGROUP(120, i2s, _, _, _, _, _, _),
> PINGROUP(121, i2s, _, _, _, _, _, _),
> PINGROUP(122, i2s, gp_clk_1b, _, _, _, _, _),
> - PINGROUP(123, _, gsbi2_spi_cs1_n, _, _, _, _, _),
> - PINGROUP(124, _, gsbi2_spi_cs2_n, _, _, _, _, _),
> - PINGROUP(125, _, gsbi2_spi_cs3_n, _, _, _, _, _),
> - PINGROUP(126, _, _, _, _, _, _, _),
> - PINGROUP(127, _, vsens_alarm, _, _, _, _, _),
> - PINGROUP(128, _, _, _, _, _, _, _),
> - PINGROUP(129, _, _, _, _, _, _, _),
> - PINGROUP(130, _, _, _, _, _, _, _),
> + PINGROUP(123, ebi2, gsbi2_spi_cs1_n, _, _, _, _, _),
> + PINGROUP(124, ebi2, gsbi2_spi_cs2_n, _, _, _, _, _),
> + PINGROUP(125, ebi2, gsbi2_spi_cs3_n, _, _, _, _, _),
> + PINGROUP(126, ebi2, _, _, _, _, _, _),
> + PINGROUP(127, ebi2, vsens_alarm, _, _, _, _, _),
> + PINGROUP(128, ebi2, _, _, _, _, _, _),
> + PINGROUP(129, ebi2, _, _, _, _, _, _),
> + PINGROUP(130, ebi2, _, _, _, _, _, _),
> PINGROUP(131, _, _, _, _, _, _, _),
> - PINGROUP(132, _, _, _, _, _, _, _),
> - PINGROUP(133, _, _, _, _, _, _, _),
> + PINGROUP(132, ebi2, _, _, _, _, _, _),
> + PINGROUP(133, ebi2, _, _, _, _, _, _),
> PINGROUP(134, _, _, _, _, _, _, _),
> - PINGROUP(135, _, _, _, _, _, _, _),
> - PINGROUP(136, _, _, _, _, _, _, _),
> - PINGROUP(137, _, _, _, _, _, _, _),
> - PINGROUP(138, _, _, _, _, _, _, _),
> - PINGROUP(139, _, _, _, _, _, _, _),
> - PINGROUP(140, _, _, _, _, _, _, _),
> - PINGROUP(141, _, _, _, _, _, _, _),
> - PINGROUP(142, _, _, _, _, _, _, _),
> - PINGROUP(143, _, sdc2, _, _, _, _, _),
> - PINGROUP(144, _, sdc2, _, _, _, _, _),
> - PINGROUP(145, _, sdc2, _, _, _, _, _),
> - PINGROUP(146, _, sdc2, _, _, _, _, _),
> - PINGROUP(147, _, sdc2, _, _, _, _, _),
> - PINGROUP(148, _, sdc2, _, _, _, _, _),
> - PINGROUP(149, _, sdc2, _, _, _, _, _),
> - PINGROUP(150, _, sdc2, _, _, _, _, _),
> - PINGROUP(151, _, sdc2, _, _, _, _, _),
> + PINGROUP(135, ebi2, _, _, _, _, _, _),
> + PINGROUP(136, ebi2, _, _, _, _, _, _),
> + PINGROUP(137, ebi2, _, _, _, _, _, _),
> + PINGROUP(138, ebi2, _, _, _, _, _, _),
> + PINGROUP(139, ebi2, _, _, _, _, _, _),
> + PINGROUP(140, ebi2, _, _, _, _, _, _),
> + PINGROUP(141, ebi2, _, _, _, _, _, _),
> + PINGROUP(142, ebi2, _, _, _, _, _, _),
> + PINGROUP(143, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(144, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(145, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(146, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(147, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(148, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(149, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(150, ebi2, sdc2, _, _, _, _, _),
> + PINGROUP(151, ebi2, sdc2, _, _, _, _, _),
> PINGROUP(152, _, sdc2, _, _, _, _, _),
> - PINGROUP(153, _, _, _, _, _, _, _),
> + PINGROUP(153, ebi2, _, _, _, _, _, _),
> PINGROUP(154, _, _, _, _, _, _, _),
> PINGROUP(155, _, _, _, _, _, _, _),
> PINGROUP(156, _, _, _, _, _, _, _),
> - PINGROUP(157, _, _, _, _, _, _, _),
> + PINGROUP(157, ebi2, _, _, _, _, _, _),
> PINGROUP(158, _, _, _, _, _, _, _),
> PINGROUP(159, sdc1, _, _, _, _, _, _),
> PINGROUP(160, sdc1, _, _, _, _, _, _),
> --
> 2.4.11
>
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