diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2019-01-14 15:05:34 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2019-01-17 16:59:33 +0300 |
| commit | 10f595eedc22a4ffcdeee23093fbb32a5a5b0226 (patch) | |
| tree | 2b5387ce8c4ad764adf68ae639a3ae5fb4425718 | |
| parent | 95658e21b1707ad7844f873db2fdaa295109a5a3 (diff) | |
| download | linux-10f595eedc22a4ffcdeee23093fbb32a5a5b0226.tar.xz | |
arm64: dts: rockchip: 'Fix' nanopi4 uSD card detect
For whatever reason, the sdmmc_dectn function isn't working properly
as-is, and microSD insertion and removal goes unnoticed. Using the pin
as a GPIO interrupt instead is rather noisy without any debouncing, but
is good enough to make it useful until someone feels inclined to figure
out how the vendor kernel/firmware gets the dedicated function to work
with no obvious difference in the pinmux/GRF configuration. Let's also
take the opportunity to tweak the node name so that all related pins
end up grouped together in the compiled DTB.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi index 9c723038d8f8..2d304d2df62e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi @@ -501,17 +501,21 @@ }; }; - sd { - sdmmc0_pwr_h: sdmmc0-pwr-h { - rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>; - }; - }; - sdio-pwrseq { wifi_reg_on_h: wifi-reg_on-h { rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>; }; }; + + sdmmc { + sdmmc0_det_l: sdmmc0-det-l { + rockchip,pins = <0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>; + }; + + sdmmc0_pwr_h: sdmmc0-pwr-h { + rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; }; &pmu_io_domains { @@ -563,9 +567,10 @@ bus-width = <4>; cap-sd-highspeed; cap-mmc-highspeed; + cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>; disable-wp; pinctrl-names = "default"; - pinctrl-0 = <&sdmmc_bus4 &sdmmc_cd &sdmmc_clk &sdmmc_cmd>; + pinctrl-0 = <&sdmmc_bus4 &sdmmc_clk &sdmmc_cmd &sdmmc0_det_l>; sd-uhs-sdr104; vmmc-supply = <&vcc3v0_sd>; vqmmc-supply = <&vcc_sdio>; |