On Thu 06 Dec 10:45 PST 2018, Evan Green wrote:
> Enable support for one of the micro SD slots on the MTP.
>
> Signed-off-by: Evan Green <evgr...@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.anders...@linaro.org>
Regards,
Bjorn
> ---
>
> Changes in v2:
> - Fixed alphabetization of node placement in sdm845-mtp.dtsi (Doug)
> - Fixed card detect name to match schematics (Doug).
> - Moved comment about drive strength next to the drive-strength entry
> (Doug)
> - Removed drive-strength from card detect input pin (Doug).
> - Consolidated tlmm nodes in MTP.
>
> arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 58 ++++++++++++++++++++++++-
> 1 file changed, 56 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> index b3def03581775..cde76da42cbb7 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> @@ -7,6 +7,7 @@
>
> /dts-v1/;
>
> +#include <dt-bindings/gpio/gpio.h>
> #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> #include "sdm845.dtsi"
>
> @@ -358,8 +359,16 @@
> status = "okay";
> };
>
> -&tlmm {
> - gpio-reserved-ranges = <0 4>, <81 4>;
> +&sdhc_2 {
> + status = "okay";
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data &sd_card_det_n>;
> +
> + vmmc-supply = <&vreg_l21a_2p95>;
> + vqmmc-supply = <&vddpx_2>;
> +
> + cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
> };
>
> &uart9 {
> @@ -450,3 +459,48 @@
> bias-pull-up;
> };
> };
> +
> +&tlmm {
> + gpio-reserved-ranges = <0 4>, <81 4>;
> +
> + sdc2_clk: sdc2-clk {
> + pinconf {
> + pins = "sdc2_clk";
> + bias-disable;
> +
> + /*
> + * It seems that mmc_test reports errors if drive
> + * strength is not 16 on clk, cmd, and data pins.
> + */
> + drive-strength = <16>;
> + };
> + };
> +
> + sdc2_cmd: sdc2-cmd {
> + pinconf {
> + pins = "sdc2_cmd";
> + bias-pull-up;
> + drive-strength = <16>;
> + };
> + };
> +
> + sdc2_data: sdc2-data {
> + pinconf {
> + pins = "sdc2_data";
> + bias-pull-up;
> + drive-strength = <16>;
> + };
> + };
> +
> + sd_card_det_n: sd-card-det-n {
> + pinmux {
> + pins = "gpio126";
> + function = "gpio";
> + };
> +
> + pinconf {
> + pins = "gpio126";
> + bias-pull-up;
> + };
> + };
> +};
> --
> 2.18.1
>
