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43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
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From 2154d94b40ea2a5de05245521371d0461bb0d669 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime.ripard@free-electrons.com>
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Date: Mon, 23 Jan 2017 09:21:30 +0100
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Subject: pinctrl: sunxi: Don't enforce bias disable (for now)
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Commit 07fe64ba213f ("pinctrl: sunxi: Handle bias disable") actually
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enforced enforced the disabling of the pull up/down resistors instead of
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ignoring it like it was done before.
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This was part of a wider rework to switch to the generic pinconf bindings,
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and was meant to be merged together with DT patches that were switching to
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it, and removing what was considered default values by both the binding and
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the boards. This included no bias on a pin.
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However, those DT patches were delayed to 4.11, which would be fine only
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for a significant number boards having the bias setup wrong, which in turns
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break the MMC on those boards (and possibly other devices too).
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In order to avoid conflicts as much as possible, bring back the old
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behaviour for 4.10, and we'll revert that commit once all the DT bits will
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have landed.
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Tested-by: Priit Laes <plaes@plaes.org>
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Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Acked-by: Chen-Yu Tsai <wens@csie.org>
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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drivers/pinctrl/sunxi/pinctrl-sunxi.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
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+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
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@@ -564,8 +564,7 @@ static int sunxi_pconf_group_set(struct
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val = arg / 10 - 1;
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break;
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case PIN_CONFIG_BIAS_DISABLE:
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- val = 0;
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- break;
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+ continue;
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case PIN_CONFIG_BIAS_PULL_UP:
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if (arg == 0)
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return -EINVAL;
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