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Tue, 26 Sep 2017 14:18:14 +0000 (GMT) X-AuditID: b6c32a36-c21ff70000018158-aa-59ca61a637c9 Received: from epmmp2 ( [203.254.227.17]) by epsmgms2p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 8A.54.06995.6A16AC95; Tue, 26 Sep 2017 23:18:14 +0900 (KST) Received: from AMDC3061.digital.local ([106.116.147.40]) by mmp2.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0OWW00LGK51W4510@mmp2.samsung.com>; Tue, 26 Sep 2017 23:18:14 +0900 (KST) From: Sylwester Nawrocki To: inki.dae@samsung.com Subject: [PATCH v3] drm: exynos: Add driver for HDMI audio interface Date: Tue, 26 Sep 2017 16:17:49 +0200 Message-id: <1506435469-10591-1-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.9.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFIsWRmVeSWpSXmKPExsWy7bCmru6yxFORBu/+aVncWneO1WLjjPWs Fle+vmezmHR/AovF2/3dzBYv7l1ksTh/fgO7xabH11gtZpzfx2Rx+E07kDX5JZsDt8emVZ1s Hve7jzN5bF5S79G3ZRWjx+dNcgGsUVw2Kak5mWWpRfp2CVwZN1cfZCtoqKnYdqqigfFLWhcj J4eEgInE+08NLF2MXBxCAjsYJXbvncIO4XxnlNj38wcLTNXJ+71QiQ2MEi07m6BafjFKPJqy hxWkik3AUKL3aB8jiC0iICEx89VFJhCbWWAVk8SzlggQW1jAReLu+SlsIDaLgKrEii232UFs XgE3iXeLvrBBbJOTOHlsMivIAgmBCWwSkxa9YYZIuEjc+fSWHcIWlnh1fAuQzQFkS0tcOmoL Ud/PKHFiTTMjhDODUeJO+wQmiAZricPHL7JCXMQn8e5rDytEM69ER5sQRImHxOVLU6F2OUps 6l4GtktIIFbi3tvV7BMYJRcwMqxiFEstKM5NTy02LDDSK07MLS7NS9dLzs/dxAiOUS2zHYyL zvkcYhTgYFTi4WUIORUpxJpYVlyZe4hRgoNZSYRXPRYoxJuSWFmVWpQfX1Sak1p8iFGag0VJ nFd0/bUIIYH0xJLU7NTUgtQimCwTB6dUAyNvT8838RvvWjzChIQ6lgvd/uXZuPHMVNX8JPsV J4+zS3tKRaxhFu4Q91xWdWOlx4ysN3yS9fnO723K5vw+ajpfSlR56pU3lpOPnup7LtvKf/Gb 1I53D28XRRrZKa1++Huqzu8l5/0MlC/qTey4fCpYqZF/79NyhaKGKXNbW26kW++qmGZiv1OJ pTgj0VCLuag4EQC7MKwVzQIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpnluLIzCtJLcpLzFFi42I5/e+xoO6yxFORBheWSFncWneO1WLjjPWs Fle+vmezmHR/AovF2/3dzBYv7l1ksTh/fgO7xabH11gtZpzfx2Rx+E07kDX5JZsDt8emVZ1s Hve7jzN5bF5S79G3ZRWjx+dNcgGsUVw2Kak5mWWpRfp2CVwZN1cfZCtoqKnYdqqigfFLWhcj J4eEgInEyfu97F2MXBxCAusYJQ6ducQM4fxilLh7bj4jSBWbgKFE79E+MFtEQEJi5quLTCBF zAKrmCR+b3nPApIQFnCRuHt+ChuIzSKgKrFiy212EJtXwE3i3aIvbBDr5CROHpvMOoGRawEj wypGydSC4tz03GKjAsO81HK94sTc4tK8dL3k/NxNjMDg2XZYq28H4/0l8YcYBTgYlXh4I8JO RQqxJpYVV+YeYpTgYFYS4VWPBQrxpiRWVqUW5ccXleakFh9ilOZgURLnvZ13LFJIID2xJDU7 NbUgtQgmy8TBKdXAOK/w4hTHVX7PItjPXmWIiN62/smcZpvM3X9WnD8wM7Tq5Hyhp8JCF8// CZacEJgzc8n9zdWbLye3bZWee6/VkP0HX9ObBu8H6c+DhVUct/XLqNxYeMk/cdaz93eXNxQ9 EVDmPC5fJrNRdK/7qS9ZJ7co1V+8l3H49L41h/iW9b/6Lyp0qugoa5ISS3FGoqEWc1FxIgDO 4mO3GgIAAA== X-CMS-MailID: 20170926141814epcas1p1923ab779847932395bf2c2899291dfcd X-Msg-Generator: CA X-Sender-IP: 182.195.42.142 X-Local-Sender: =?UTF-8?B?U3lsd2VzdGVyIE5hd3JvY2tpG1NSUE9MLUtlcm5lbCAoVFAp?= =?UTF-8?B?G+yCvOyEseyghOyekBtTZW5pb3IgU29mdHdhcmUgRW5naW5lZXI=?= X-Global-Sender: =?UTF-8?B?U3lsd2VzdGVyIE5hd3JvY2tpG1NSUE9MLUtlcm5lbCAoVFAp?= =?UTF-8?B?G1NhbXN1bmcgRWxlY3Ryb25pY3MbU2VuaW9yIFNvZnR3YXJlIEVuZ2luZWVy?= X-Sender-Code: =?UTF-8?B?QzEwG0VIURtDMTBDRDAyQ0QwMjczOTI=?= CMS-TYPE: 101P X-CMS-RootMailID: 20170926141814epcas1p1923ab779847932395bf2c2899291dfcd X-RootMTR: 20170926141814epcas1p1923ab779847932395bf2c2899291dfcd References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170926_071845_151603_5A0AC1D0 X-CRM114-Status: GOOD ( 19.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, jy0922.shim@samsung.com, b.zolnierkie@samsung.com, jcsing.lee@samsung.com, sw0312.kim@samsung.com, dri-devel@lists.freedesktop.org, a.hajda@samsung.com, krzk@kernel.org, Sylwester Nawrocki , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The hdmi-codec interface added in this patch is required to properly support HDMI audio. Currently the audio part of the SoC internal HDMI transmitter is configured with fixed values, which makes HDMI audio working by chance, only on boards having an external audio codec connected in parallel with the HDMI audio transmitter's input I2S interface. Signed-off-by: Sylwester Nawrocki Reviewed-by: Andrzej Hajda --- Tested on Odroid XU3 and Odroid XU4 with Ubuntu 14.04. Changes since v2: - u8 replaced with bool type, - the HDMI codec iec.status data used directly for setting up the HDMI controller registers rather than using hard coded constants, - constants used for configuring the HDMI_AUI_CON register instead of plain numbers, - if/IS_ERR/return replaced with PTR_ERR_OR_ZERO(). Changes since v1: - rebased onto v4.14-rc1 and adapted locking Changes since RFC version: - fixed hdmi-codec locking issue - added a comment documenting struct hdmi_contex::mutex --- drivers/gpu/drm/exynos/Kconfig | 1 + drivers/gpu/drm/exynos/exynos_hdmi.c | 253 ++++++++++++++++++++++++++--------- drivers/gpu/drm/exynos/regs-hdmi.h | 8 +- 3 files changed, 197 insertions(+), 65 deletions(-) -- 1.9.1 diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 305dc3d..5a7c9d8 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -3,6 +3,7 @@ config DRM_EXYNOS depends on OF && DRM && (ARCH_S3C64XX || ARCH_EXYNOS || ARCH_MULTIPLATFORM) select DRM_KMS_HELPER select VIDEOMODE_HELPERS + select SND_SOC_HDMI_CODEC if SND_SOC help Choose this option if you have a Samsung SoC EXYNOS chipset. If M is selected the module will be called exynosdrm. diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 214fa5e..d2b389a 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -40,7 +40,7 @@ #include #include #include - +#include #include #include @@ -111,12 +111,18 @@ struct hdmi_driver_data { struct string_array_spec clk_muxes; }; +struct hdmi_audio { + struct platform_device *pdev; + struct hdmi_audio_infoframe infoframe; + struct hdmi_codec_params params; + bool enable; +}; + struct hdmi_context { struct drm_encoder encoder; struct device *dev; struct drm_device *drm_dev; struct drm_connector connector; - bool powered; bool dvi_mode; struct delayed_work hotplug_work; struct drm_display_mode current_mode; @@ -137,6 +143,11 @@ struct hdmi_context { struct regulator *reg_hdmi_en; struct exynos_drm_clk phy_clk; struct drm_bridge *bridge; + + /* mutex protecting subsequent fields below */ + struct mutex mutex; + struct hdmi_audio audio; + bool powered; }; static inline struct hdmi_context *encoder_to_hdmi(struct drm_encoder *e) @@ -768,6 +779,22 @@ static int hdmi_clk_set_parents(struct hdmi_context *hdata, bool to_phy) return ret; } +static int hdmi_audio_infoframe_apply(struct hdmi_context *hdata) +{ + struct hdmi_audio_infoframe *infoframe = &hdata->audio.infoframe; + u8 buf[HDMI_INFOFRAME_SIZE(AUDIO)]; + int len; + + len = hdmi_audio_infoframe_pack(infoframe, buf, sizeof(buf)); + if (len < 0) + return len; + + hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC); + hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, len); + + return 0; +} + static void hdmi_reg_infoframes(struct hdmi_context *hdata) { union hdmi_infoframe frm; @@ -805,15 +832,7 @@ static void hdmi_reg_infoframes(struct hdmi_context *hdata) hdmi_reg_write_buf(hdata, HDMI_VSI_DATA(0), buf + 3, ret - 3); } - ret = hdmi_audio_infoframe_init(&frm.audio); - if (!ret) { - frm.audio.channels = 2; - ret = hdmi_audio_infoframe_pack(&frm.audio, buf, sizeof(buf)); - } - if (ret > 0) { - hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC); - hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, ret); - } + hdmi_audio_infoframe_apply(hdata); } static enum drm_connector_status hdmi_detect(struct drm_connector *connector, @@ -995,23 +1014,18 @@ static void hdmi_reg_acr(struct hdmi_context *hdata, u32 freq) hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4); } -static void hdmi_audio_init(struct hdmi_context *hdata) +static void hdmi_audio_config(struct hdmi_context *hdata) { - u32 sample_rate, bits_per_sample; - u32 data_num, bit_ch, sample_frq; - u32 val; - - sample_rate = 44100; - bits_per_sample = 16; + u32 bit_ch = 1; + u32 data_num, val; + int i; - switch (bits_per_sample) { + switch (hdata->audio.params.sample_width) { case 20: data_num = 2; - bit_ch = 1; break; case 24: data_num = 3; - bit_ch = 1; break; default: data_num = 1; @@ -1019,7 +1033,7 @@ static void hdmi_audio_init(struct hdmi_context *hdata) break; } - hdmi_reg_acr(hdata, sample_rate); + hdmi_reg_acr(hdata, hdata->audio.params.sample_rate); hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CON, HDMI_I2S_IN_DISABLE | HDMI_I2S_AUD_I2S | HDMI_I2S_CUV_I2S_ENABLE @@ -1029,12 +1043,6 @@ static void hdmi_audio_init(struct hdmi_context *hdata) | HDMI_I2S_CH1_EN | HDMI_I2S_CH2_EN); hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CUV, HDMI_I2S_CUV_RL_EN); - - sample_frq = (sample_rate == 44100) ? 0 : - (sample_rate == 48000) ? 2 : - (sample_rate == 32000) ? 3 : - (sample_rate == 96000) ? 0xa : 0x0; - hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_DIS); hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_EN); @@ -1058,31 +1066,24 @@ static void hdmi_audio_init(struct hdmi_context *hdata) | HDMI_I2S_SET_SDATA_BIT(data_num) | HDMI_I2S_BASIC_FORMAT); - /* Configure register related to CUV information */ - hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_0, HDMI_I2S_CH_STATUS_MODE_0 - | HDMI_I2S_2AUD_CH_WITHOUT_PREEMPH - | HDMI_I2S_COPYRIGHT - | HDMI_I2S_LINEAR_PCM - | HDMI_I2S_CONSUMER_FORMAT); - hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_1, HDMI_I2S_CD_PLAYER); - hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_2, HDMI_I2S_SET_SOURCE_NUM(0)); - hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_3, HDMI_I2S_CLK_ACCUR_LEVEL_2 - | HDMI_I2S_SET_SMP_FREQ(sample_frq)); - hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_4, - HDMI_I2S_ORG_SMP_FREQ_44_1 - | HDMI_I2S_WORD_LEN_MAX24_24BITS - | HDMI_I2S_WORD_LEN_MAX_24BITS); + /* Configure registers related to CUV information */ + for (i = 0; i < HDMI_I2S_CH_ST_MAXNUM; i++) + hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST(i), + hdata->audio.params.iec.status[i]); hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_CON, HDMI_I2S_CH_STATUS_RELOAD); } -static void hdmi_audio_control(struct hdmi_context *hdata, bool onoff) +static void hdmi_audio_control(struct hdmi_context *hdata) { + bool enable = hdata->audio.enable; + if (hdata->dvi_mode) return; - hdmi_reg_writeb(hdata, HDMI_AUI_CON, onoff ? 2 : 0); - hdmi_reg_writemask(hdata, HDMI_CON_0, onoff ? + hdmi_reg_writeb(hdata, HDMI_AUI_CON, enable ? + HDMI_AVI_CON_EVERY_VSYNC : HDMI_AUI_CON_NO_TRAN); + hdmi_reg_writemask(hdata, HDMI_CON_0, enable ? HDMI_ASP_EN : HDMI_ASP_DIS, HDMI_ASP_MASK); } @@ -1398,13 +1399,14 @@ static void hdmiphy_conf_apply(struct hdmi_context *hdata) hdmiphy_wait_for_pll(hdata); } +/* Should be called with hdata->mutex mutex held */ static void hdmi_conf_apply(struct hdmi_context *hdata) { hdmi_start(hdata, false); hdmi_conf_init(hdata); - hdmi_audio_init(hdata); + hdmi_audio_config(hdata); hdmi_mode_apply(hdata); - hdmi_audio_control(hdata, true); + hdmi_audio_control(hdata); } static void hdmi_mode_set(struct drm_encoder *encoder, @@ -1431,6 +1433,7 @@ static void hdmi_set_refclk(struct hdmi_context *hdata, bool on) SYSREG_HDMI_REFCLK_INT_CLK, on ? ~0 : 0); } +/* Should be called with hdata->mutex mutex held. */ static void hdmiphy_enable(struct hdmi_context *hdata) { if (hdata->powered) @@ -1453,6 +1456,7 @@ static void hdmiphy_enable(struct hdmi_context *hdata) hdata->powered = true; } +/* Should be called with hdata->mutex mutex held. */ static void hdmiphy_disable(struct hdmi_context *hdata) { if (!hdata->powered) @@ -1478,28 +1482,38 @@ static void hdmi_enable(struct drm_encoder *encoder) { struct hdmi_context *hdata = encoder_to_hdmi(encoder); + mutex_lock(&hdata->mutex); + hdmiphy_enable(hdata); hdmi_conf_apply(hdata); + + mutex_unlock(&hdata->mutex); } static void hdmi_disable(struct drm_encoder *encoder) { struct hdmi_context *hdata = encoder_to_hdmi(encoder); - if (!hdata->powered) + mutex_lock(&hdata->mutex); + + if (hdata->powered) { + /* + * The SFRs of VP and Mixer are updated by Vertical Sync of + * Timing generator which is a part of HDMI so the sequence + * to disable TV Subsystem should be as following, + * VP -> Mixer -> HDMI + * + * To achieve such sequence HDMI is disabled together with + * HDMI PHY, via pipe clock callback. + */ + mutex_unlock(&hdata->mutex); + cancel_delayed_work(&hdata->hotplug_work); + cec_notifier_set_phys_addr(hdata->notifier, + CEC_PHYS_ADDR_INVALID); return; + } - /* - * The SFRs of VP and Mixer are updated by Vertical Sync of - * Timing generator which is a part of HDMI so the sequence - * to disable TV Subsystem should be as following, - * VP -> Mixer -> HDMI - * - * To achieve such sequence HDMI is disabled together with HDMI PHY, via - * pipe clock callback. - */ - cancel_delayed_work(&hdata->hotplug_work); - cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID); + mutex_unlock(&hdata->mutex); } static const struct drm_encoder_helper_funcs exynos_hdmi_encoder_helper_funcs = { @@ -1513,6 +1527,104 @@ static void hdmi_disable(struct drm_encoder *encoder) .destroy = drm_encoder_cleanup, }; +static void hdmi_audio_shutdown(struct device *dev, void *data) +{ + struct hdmi_context *hdata = dev_get_drvdata(dev); + + mutex_lock(&hdata->mutex); + + hdata->audio.enable = false; + + if (hdata->powered) + hdmi_audio_control(hdata); + + mutex_unlock(&hdata->mutex); +} + +static int hdmi_audio_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params) +{ + struct hdmi_context *hdata = dev_get_drvdata(dev); + + if (daifmt->fmt != HDMI_I2S || daifmt->bit_clk_inv || + daifmt->frame_clk_inv || daifmt->bit_clk_master || + daifmt->frame_clk_master) { + dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__, + daifmt->bit_clk_inv, daifmt->frame_clk_inv, + daifmt->bit_clk_master, + daifmt->frame_clk_master); + return -EINVAL; + } + + mutex_lock(&hdata->mutex); + + hdata->audio.params = *params; + + if (hdata->powered) { + hdmi_audio_config(hdata); + hdmi_audio_infoframe_apply(hdata); + } + + mutex_unlock(&hdata->mutex); + + return 0; +} + +static int hdmi_audio_digital_mute(struct device *dev, void *data, bool mute) +{ + struct hdmi_context *hdata = dev_get_drvdata(dev); + + mutex_lock(&hdata->mutex); + + hdata->audio.enable = !mute; + + if (hdata->powered) + hdmi_audio_control(hdata); + + mutex_unlock(&hdata->mutex); + + return 0; +} + +static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, + size_t len) +{ + struct hdmi_context *hdata = dev_get_drvdata(dev); + struct drm_connector *connector = &hdata->connector; + + memcpy(buf, connector->eld, min(sizeof(connector->eld), len)); + + return 0; +} + +static const struct hdmi_codec_ops audio_codec_ops = { + .hw_params = hdmi_audio_hw_params, + .audio_shutdown = hdmi_audio_shutdown, + .digital_mute = hdmi_audio_digital_mute, + .get_eld = hdmi_audio_get_eld, +}; + +static int hdmi_register_audio_device(struct hdmi_context *hdata) +{ + struct hdmi_codec_pdata codec_data = { + .ops = &audio_codec_ops, + .max_i2s_channels = 6, + .i2s = 1, + }; + + hdata->audio.pdev = platform_device_register_data( + hdata->dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO, + &codec_data, sizeof(codec_data)); + + return PTR_ERR_OR_ZERO(hdata->audio.pdev); +} + +static void hdmi_unregister_audio_device(struct hdmi_context *hdata) +{ + platform_device_unregister(hdata->audio.pdev); +} + static void hdmi_hotplug_work_func(struct work_struct *work) { struct hdmi_context *hdata; @@ -1588,11 +1700,14 @@ static void hdmiphy_clk_enable(struct exynos_drm_clk *clk, bool enable) { struct hdmi_context *hdata = container_of(clk, struct hdmi_context, phy_clk); + mutex_lock(&hdata->mutex); if (enable) hdmiphy_enable(hdata); else hdmiphy_disable(hdata); + + mutex_unlock(&hdata->mutex); } static int hdmi_bridge_init(struct hdmi_context *hdata) @@ -1697,6 +1812,7 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) struct drm_device *drm_dev = data; struct hdmi_context *hdata = dev_get_drvdata(dev); struct drm_encoder *encoder = &hdata->encoder; + struct hdmi_audio_infoframe *audio_infoframe = &hdata->audio.infoframe; struct exynos_drm_crtc *crtc; int ret; @@ -1704,6 +1820,12 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) hdata->phy_clk.enable = hdmiphy_clk_enable; + hdmi_audio_infoframe_init(audio_infoframe); + audio_infoframe->coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; + audio_infoframe->sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; + audio_infoframe->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; + audio_infoframe->channels = 2; + drm_encoder_init(drm_dev, encoder, &exynos_hdmi_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL); @@ -1818,6 +1940,8 @@ static int hdmi_probe(struct platform_device *pdev) hdata->dev = dev; + mutex_init(&hdata->mutex); + ret = hdmi_resources_init(hdata); if (ret) { if (ret != -EPROBE_DEFER) @@ -1877,12 +2001,19 @@ static int hdmi_probe(struct platform_device *pdev) pm_runtime_enable(dev); - ret = component_add(&pdev->dev, &hdmi_component_ops); + ret = hdmi_register_audio_device(hdata); if (ret) goto err_notifier_put; + ret = component_add(&pdev->dev, &hdmi_component_ops); + if (ret) + goto err_unregister_audio; + return ret; +err_unregister_audio: + hdmi_unregister_audio_device(hdata); + err_notifier_put: cec_notifier_put(hdata->notifier); pm_runtime_disable(dev); @@ -1921,6 +2052,8 @@ static int hdmi_remove(struct platform_device *pdev) put_device(&hdata->ddc_adpt->dev); + mutex_destroy(&hdata->mutex); + return 0; } diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h index a0507dc..d843b1f 100644 --- a/drivers/gpu/drm/exynos/regs-hdmi.h +++ b/drivers/gpu/drm/exynos/regs-hdmi.h @@ -419,11 +419,9 @@ #define HDMI_I2S_DSD_CON HDMI_I2S_BASE(0x01c) #define HDMI_I2S_MUX_CON HDMI_I2S_BASE(0x020) #define HDMI_I2S_CH_ST_CON HDMI_I2S_BASE(0x024) -#define HDMI_I2S_CH_ST_0 HDMI_I2S_BASE(0x028) -#define HDMI_I2S_CH_ST_1 HDMI_I2S_BASE(0x02c) -#define HDMI_I2S_CH_ST_2 HDMI_I2S_BASE(0x030) -#define HDMI_I2S_CH_ST_3 HDMI_I2S_BASE(0x034) -#define HDMI_I2S_CH_ST_4 HDMI_I2S_BASE(0x038) +/* n must be withing range 0...(HDMI_I2S_CH_ST_MAXNUM - 1) */ +#define HDMI_I2S_CH_ST_MAXNUM 5 +#define HDMI_I2S_CH_ST(n) HDMI_I2S_BASE(0x028 + 4 * (n)) #define HDMI_I2S_CH_ST_SH_0 HDMI_I2S_BASE(0x03c) #define HDMI_I2S_CH_ST_SH_1 HDMI_I2S_BASE(0x040) #define HDMI_I2S_CH_ST_SH_2 HDMI_I2S_BASE(0x044)