linux-kernel - [PATCH v5 0/3] ASoC: rockchip: i2s: switch BCLK to GPIO

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Date:   Thu, 23 Jun 2022 02:11:50 +0000
From:   Judy Hsiao <judyhsiao@...omium.org>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Brian Norris <briannorris@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Chen-Yu Tsai <wenst@...omium.org>, alsa-devel@...a-project.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Judy Hsiao <judyhsiao@...omium.org>
Subject: [PATCH v5 0/3] ASoC: rockchip: i2s: switch BCLK to GPIO

The patches series is to fix the unexpected large DC output
voltage of Max98357a that burns the speakers on the rockchip
platform when BCLK and SD_MODE are ON but LRCLK is OFF.

Changes Since V5:
    -- Check i2s->pinctrl is valid before using pinctrl_lookup_state.
Changes Since V4:
    -- Fix indentation in the driver. (Align parameters with the parenthesis
       placement.)
    -- Fix incorrect return type of rockchip_snd_rxctrl.
Changes Since V3:
    -- Fix indentation in the documentation.
    -- Put pinctrl-1 right after pinctrl-0 in dtsi.
    -- Fix indentation in the driver.
    -- Remove unnecessary dev_dbg() in the driver.
Changes Since V2:
    -- Add documents of i2s pinctrl-names.
    -- Fix dtsi syntax error.
    -- Include the dtsi change and the driver change in the same series.
    -- Ensure that driver gets both bclk_on and bclk_off states before using them.

Judy Hsiao (3):
  ASoC: rockchip: i2s: switch BCLK to GPIO
  arm64: dts: rk3399: i2s: switch BCLK to GPIO
  ASoC: dt-bindings: rockchip: Document pinctrl-names for i2s

 .../bindings/sound/rockchip-i2s.yaml          |   7 +
 .../boot/dts/rockchip/rk3399-gru-scarlet.dtsi |  10 +
 arch/arm64/boot/dts/rockchip/rk3399.dtsi      |  25 ++-
 sound/soc/rockchip/rockchip_i2s.c             | 171 +++++++++++++-----
 4 files changed, 165 insertions(+), 48 deletions(-)

-- 
2.37.0.rc0.104.g0611611a94-goog