linux-kernel - [PATCH v6 2/4] drm: dw-hdmi-i2s: Use fixed id for codec device

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Message-Id: <20190918082500.209281-3-cychiang@chromium.org>
Date:   Wed, 18 Sep 2019 16:24:58 +0800
From:   Cheng-Yi Chiang <cychiang@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Jonas Karlman <jonas@...boo.se>,
        Hans Verkuil <hverkuil@...all.nl>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Takashi Iwai <tiwai@...e.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Heiko Stuebner <heiko@...ech.de>, dianders@...omium.org,
        dgreid@...omium.org, tzungbi@...omium.org,
        alsa-devel@...a-project.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        Cheng-Yi Chiang <cychiang@...omium.org>
Subject: [PATCH v6 2/4] drm: dw-hdmi-i2s: Use fixed id for codec device

The problem of using auto ID is that the device name will be like
hdmi-audio-codec.<id number>.auto.

The number might be changed when there are other platform devices being
created before hdmi-audio-codec device.
Use a fixed name so machine driver can set codec name on the DAI link.

Using the fixed name should be fine because there will only be one
hdmi-audio-codec device.

Fix the codec name in rockchip rk3288_hdmi_analog machine driver.

Signed-off-by: Cheng-Yi Chiang <cychiang@...omium.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 2 +-
 sound/soc/rockchip/rk3288_hdmi_analog.c             | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
index d7e65c869415..86bd482b9f94 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
@@ -193,7 +193,7 @@ static int snd_dw_hdmi_probe(struct platform_device *pdev)
 
 	memset(&pdevinfo, 0, sizeof(pdevinfo));
 	pdevinfo.parent		= pdev->dev.parent;
-	pdevinfo.id		= PLATFORM_DEVID_AUTO;
+	pdevinfo.id		= PLATFORM_DEVID_NONE;
 	pdevinfo.name		= HDMI_CODEC_DRV_NAME;
 	pdevinfo.data		= &pdata;
 	pdevinfo.size_data	= sizeof(pdata);
diff --git a/sound/soc/rockchip/rk3288_hdmi_analog.c b/sound/soc/rockchip/rk3288_hdmi_analog.c
index 767700c34ee2..8286025a8747 100644
--- a/sound/soc/rockchip/rk3288_hdmi_analog.c
+++ b/sound/soc/rockchip/rk3288_hdmi_analog.c
@@ -15,6 +15,7 @@
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <sound/core.h>
+#include <sound/hdmi-codec.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -142,7 +143,7 @@ static const struct snd_soc_ops rk_ops = {
 SND_SOC_DAILINK_DEFS(audio,
 	DAILINK_COMP_ARRAY(COMP_EMPTY()),
 	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, NULL),
-			   COMP_CODEC("hdmi-audio-codec.2.auto", "i2s-hifi")),
+			   COMP_CODEC(HDMI_CODEC_DRV_NAME, "i2s-hifi")),
 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
 static struct snd_soc_dai_link rk_dailink = {
-- 
2.23.0.237.gc6a4ce50a0-goog