68 lines
1.7 KiB
Diff
68 lines
1.7 KiB
Diff
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From 7d114ec31e537fcb4c2e4f0fca867b050fd59549 Mon Sep 17 00:00:00 2001
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From: Dragan Simic <dragan.simic@gmail.com>
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Date: Thu, 10 Feb 2022 14:43:05 +0100
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Subject: [PATCH] Reconfigure GPIO4_D3 as input on PinePhone Pro
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---
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.../pinephone-pro-rk3399.c | 39 ++++++++++++++++++-
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1 file changed, 38 insertions(+), 1 deletion(-)
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diff --git a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
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index d79084614f..bc19b275b2 100644
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--- a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
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+++ b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c
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@@ -12,6 +12,7 @@
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#include <asm/arch-rockchip/grf_rk3399.h>
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#include <asm/arch-rockchip/hardware.h>
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#include <asm/arch-rockchip/misc.h>
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+#include <asm-generic/gpio.h>
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#define GRF_IO_VSEL_BT565_SHIFT 0
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#define PMUGRF_CON0_VSEL_SHIFT 8
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@@ -52,5 +53,41 @@ int misc_init_r(void)
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return ret;
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}
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-
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#endif
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+
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+#define GPIO4_D3 "155"
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+
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+static int setup_gpios(void)
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+{
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+ struct gpio_desc gpio;
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+ int ret;
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+
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+ /*
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+ * MaskROM enables output on GPIO4_D3 and leaves it that way, seemingly
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+ * because the RK3399 reference BOX and VR REF designs use GPIO4_D3 as
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+ * EFUSE_VQPS (AD23) power control output, while it is a light sensor
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+ * interrupt on the PinePhone Pro and needs to be configured as input.
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+ */
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+ ret = dm_gpio_lookup_name(GPIO4_D3, &gpio);
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+ if (ret)
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+ return ret;
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+
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+ ret = dm_gpio_request(&gpio, "light_int_l");
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+ if (ret)
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+ return ret;
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+
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+ dm_gpio_set_dir_flags(&gpio, GPIOD_IS_IN);
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+
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+ return 0;
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+}
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+
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+int rk_board_late_init(void)
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+{
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+ int ret;
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+
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+ ret = setup_gpios();
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+ if (ret)
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+ debug("Failed to configure GPIO lines: %d\n", ret);
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+
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+ return ret;
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+}
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--
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2.33.1
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