From patchwork Mon Oct 17 22:18:49 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 9380779 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2320660487 for ; Mon, 17 Oct 2016 22:19:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 03A0028D00 for ; Mon, 17 Oct 2016 22:19:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EBE3E28D09; Mon, 17 Oct 2016 22:19:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1065128D00 for ; Mon, 17 Oct 2016 22:19:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 016826E5DA; Mon, 17 Oct 2016 22:19:13 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pf0-x22d.google.com (mail-pf0-x22d.google.com [IPv6:2607:f8b0:400e:c00::22d]) by gabe.freedesktop.org (Postfix) with ESMTPS id D9E256E5D9 for ; Mon, 17 Oct 2016 22:19:11 +0000 (UTC) Received: by mail-pf0-x22d.google.com with SMTP id e6so83702931pfk.3 for ; Mon, 17 Oct 2016 15:19:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xk2xqnmpH8FoYgeW8wL4O2xBnez1t8Rz9qG5wlGGrok=; b=g9zikpd3lf+IRydhRGulQmCtDW5Zf3FG2OUMt4AONWDWwY4BaPJQXqHB6U77T6KDeA BaY2eORAll3eJFMQ8EgWpYlNxx7LgQzqybG8mPc8uinEitXipvN2w1CngUp7HjBKnN7z Y2Hyo03nIID8rLrhVRLhVg7tZ7afx5Gc6XugI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xk2xqnmpH8FoYgeW8wL4O2xBnez1t8Rz9qG5wlGGrok=; b=YFZ4/+T8a+LbD6FZPsabCn4+rY2NZpaOkJ74/9h/EHLVFFfHqrpHCMYx/mTp/mr+vk qdBCHR99ki7uDL37y+69B3MwY9h6FB3OKSSCOeYuMzSyqXDxqNW96c1edNY1i+2fn25/ 539SOryh6aCcoprhmqmgO5UeNbuNAY0Tr3YiyAqf+Cd8XcPfSiIpRyU1nyHz075X9+c0 +0JBLNhCGx+ZDbUw0koTmxt1WRX1vG4VmijRXU/bhtW3LnVfGyq1yoAAz9xwGVZi4hJ9 6JeU8NOJdmEEd+hfriObZ7fJnw3196BKa9nASRnOwSBSjBBoH1do170bC5lA7mvVRmUV h6WQ== X-Gm-Message-State: AA6/9RnJ+ob9JGCwenIXaJqWcitHaUuYVmbh8v6zgL2xdRTJLrS3p9LN/Izey/6wgn2LxR99 X-Received: by 10.98.32.82 with SMTP id g79mr40484892pfg.142.1476742751325; Mon, 17 Oct 2016 15:19:11 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:1002:83f0:4e72:b9ff:fe99:466a]) by smtp.gmail.com with ESMTPSA id f129sm17195pfc.3.2016.10.17.15.19.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 17 Oct 2016 15:19:10 -0700 (PDT) From: John Stultz To: lkml Subject: [RESEND][PATCH 1/2 v4] drm/bridge: adv7511: Add Audio support. Date: Mon, 17 Oct 2016 15:18:49 -0700 Message-Id: <1476742730-8526-1-git-send-email-john.stultz@linaro.org> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Cc: Guodong Xu , dri-devel@lists.freedesktop.org, Jose Abreu , Wolfram Sang , Mark Brown , Laurent Pinchart , Zhangfei Gao , Andy Green , Srinivas Kandagatla , Dave Long X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support to Audio for both adv7511 and adv7533 bridge chips. This patch was originally from [1] by Lars-Peter Clausen and was adapted by Archit Taneja and Srinivas Kandagatla . Then I heavily reworked it to use the hdmi-codec driver. And also folded in some audio packet initialization done by Andy Green . So credit to them, but blame to me. [1] https://github.com/analogdevicesinc/linux/blob/xcomm_zynq/drivers/gpu/drm/i2c/adv7511_audio.c Cc: David Airlie Cc: Archit Taneja Cc: Laurent Pinchart Cc: Wolfram Sang Cc: Srinivas Kandagatla Cc: "Ville Syrjälä" Cc: Boris Brezillon Cc: Andy Green Cc: Dave Long Cc: Guodong Xu Cc: Zhangfei Gao Cc: Mark Brown Cc: Lars-Peter Clausen Cc: Jose Abreu Cc: dri-devel@lists.freedesktop.org Reviewed-by: Archit Taneja Acked-by: Lars-Peter Clausen Signed-off-by: John Stultz --- v4: * Kconfig tweaks suggested by Lars-Peter Clausen v3: * Allowed audio support to be configured in or out, as suggested by Laurent * Minor cleanups suggested by Laurent * Folded in Andy's audio packet initialization patch, as suggested by Archit --- drivers/gpu/drm/bridge/adv7511/Kconfig | 8 + drivers/gpu/drm/bridge/adv7511/Makefile | 1 + drivers/gpu/drm/bridge/adv7511/adv7511.h | 16 ++ drivers/gpu/drm/bridge/adv7511/adv7511_audio.c | 213 +++++++++++++++++++++++++ drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 4 + 5 files changed, 242 insertions(+) create mode 100644 drivers/gpu/drm/bridge/adv7511/adv7511_audio.c diff --git a/drivers/gpu/drm/bridge/adv7511/Kconfig b/drivers/gpu/drm/bridge/adv7511/Kconfig index d2b0499..2fed567 100644 --- a/drivers/gpu/drm/bridge/adv7511/Kconfig +++ b/drivers/gpu/drm/bridge/adv7511/Kconfig @@ -6,6 +6,14 @@ config DRM_I2C_ADV7511 help Support for the Analog Device ADV7511(W) and ADV7513 HDMI encoders. +config DRM_I2C_ADV7511_AUDIO + bool "ADV7511 HDMI Audio driver" + depends on DRM_I2C_ADV7511 && SND_SOC + select SND_SOC_HDMI_CODEC + help + Support the ADV7511 HDMI Audio interface. This is used in + conjunction with the AV7511 HDMI driver. + config DRM_I2C_ADV7533 bool "ADV7533 encoder" depends on DRM_I2C_ADV7511 diff --git a/drivers/gpu/drm/bridge/adv7511/Makefile b/drivers/gpu/drm/bridge/adv7511/Makefile index 9019327..5ba6755 100644 --- a/drivers/gpu/drm/bridge/adv7511/Makefile +++ b/drivers/gpu/drm/bridge/adv7511/Makefile @@ -1,3 +1,4 @@ adv7511-y := adv7511_drv.o +adv7511-$(CONFIG_DRM_I2C_ADV7511_AUDIO) += adv7511_audio.o adv7511-$(CONFIG_DRM_I2C_ADV7533) += adv7533.o obj-$(CONFIG_DRM_I2C_ADV7511) += adv7511.o diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h index 161c923..992d76c 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h @@ -309,6 +309,8 @@ struct adv7511 { struct drm_display_mode curr_mode; unsigned int f_tmds; + unsigned int f_audio; + unsigned int audio_source; unsigned int current_edid_segment; uint8_t edid_buf[256]; @@ -334,6 +336,7 @@ struct adv7511 { bool use_timing_gen; enum adv7511_type type; + struct platform_device *audio_pdev; }; #ifdef CONFIG_DRM_I2C_ADV7533 @@ -389,4 +392,17 @@ static inline int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv) } #endif +#ifdef CONFIG_DRM_I2C_ADV7511_AUDIO +int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511); +void adv7511_audio_exit(struct adv7511 *adv7511); +#else /*CONFIG_DRM_I2C_ADV7511_AUDIO */ +static inline int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511) +{ + return 0; +} +static inline void adv7511_audio_exit(struct adv7511 *adv7511) +{ +} +#endif /* CONFIG_DRM_I2C_ADV7511_AUDIO */ + #endif /* __DRM_I2C_ADV7511_H__ */ diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c new file mode 100644 index 0000000..5ce29a5 --- /dev/null +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c @@ -0,0 +1,213 @@ +/* + * Analog Devices ADV7511 HDMI transmitter driver + * + * Copyright 2012 Analog Devices Inc. + * Copyright (c) 2016, Linaro Limited + * + * Licensed under the GPL-2. + */ + +#include +#include +#include +#include + +#include "adv7511.h" + +static void adv7511_calc_cts_n(unsigned int f_tmds, unsigned int fs, + unsigned int *cts, unsigned int *n) +{ + switch (fs) { + case 32000: + *n = 4096; + break; + case 44100: + *n = 6272; + break; + case 48000: + *n = 6144; + break; + } + + *cts = ((f_tmds * *n) / (128 * fs)) * 1000; +} + +static int adv7511_update_cts_n(struct adv7511 *adv7511) +{ + unsigned int cts = 0; + unsigned int n = 0; + + adv7511_calc_cts_n(adv7511->f_tmds, adv7511->f_audio, &cts, &n); + + regmap_write(adv7511->regmap, ADV7511_REG_N0, (n >> 16) & 0xf); + regmap_write(adv7511->regmap, ADV7511_REG_N1, (n >> 8) & 0xff); + regmap_write(adv7511->regmap, ADV7511_REG_N2, n & 0xff); + + regmap_write(adv7511->regmap, ADV7511_REG_CTS_MANUAL0, + (cts >> 16) & 0xf); + regmap_write(adv7511->regmap, ADV7511_REG_CTS_MANUAL1, + (cts >> 8) & 0xff); + regmap_write(adv7511->regmap, ADV7511_REG_CTS_MANUAL2, + cts & 0xff); + + return 0; +} + +int adv7511_hdmi_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms) +{ + struct adv7511 *adv7511 = dev_get_drvdata(dev); + unsigned int audio_source, i2s_format = 0; + unsigned int invert_clock; + unsigned int rate; + unsigned int len; + + switch (hparms->sample_rate) { + case 32000: + rate = ADV7511_SAMPLE_FREQ_32000; + break; + case 44100: + rate = ADV7511_SAMPLE_FREQ_44100; + break; + case 48000: + rate = ADV7511_SAMPLE_FREQ_48000; + break; + case 88200: + rate = ADV7511_SAMPLE_FREQ_88200; + break; + case 96000: + rate = ADV7511_SAMPLE_FREQ_96000; + break; + case 176400: + rate = ADV7511_SAMPLE_FREQ_176400; + break; + case 192000: + rate = ADV7511_SAMPLE_FREQ_192000; + break; + default: + return -EINVAL; + } + + switch (hparms->sample_width) { + case 16: + len = ADV7511_I2S_SAMPLE_LEN_16; + break; + case 18: + len = ADV7511_I2S_SAMPLE_LEN_18; + break; + case 20: + len = ADV7511_I2S_SAMPLE_LEN_20; + break; + case 24: + len = ADV7511_I2S_SAMPLE_LEN_24; + break; + default: + return -EINVAL; + } + + switch (fmt->fmt) { + case HDMI_I2S: + audio_source = ADV7511_AUDIO_SOURCE_I2S; + i2s_format = ADV7511_I2S_FORMAT_I2S; + break; + case HDMI_RIGHT_J: + audio_source = ADV7511_AUDIO_SOURCE_I2S; + i2s_format = ADV7511_I2S_FORMAT_RIGHT_J; + break; + case HDMI_LEFT_J: + audio_source = ADV7511_AUDIO_SOURCE_I2S; + i2s_format = ADV7511_I2S_FORMAT_LEFT_J; + break; + default: + return -EINVAL; + } + + invert_clock = fmt->bit_clk_inv; + + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_SOURCE, 0x70, + audio_source << 4); + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG, BIT(6), + invert_clock << 6); + regmap_update_bits(adv7511->regmap, ADV7511_REG_I2S_CONFIG, 0x03, + i2s_format); + + adv7511->audio_source = audio_source; + + adv7511->f_audio = hparms->sample_rate; + + adv7511_update_cts_n(adv7511); + + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CFG3, + ADV7511_AUDIO_CFG3_LEN_MASK, len); + regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, + ADV7511_I2C_FREQ_ID_CFG_RATE_MASK, rate << 4); + regmap_write(adv7511->regmap, 0x73, 0x1); + + return 0; +} + +static int audio_startup(struct device *dev, void *data) +{ + struct adv7511 *adv7511 = dev_get_drvdata(dev); + + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG, + BIT(7), 0); + + /* hide Audio infoframe updates */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_INFOFRAME_UPDATE, + BIT(5), BIT(5)); + /* enable N/CTS, enable Audio sample packets */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, + BIT(5), BIT(5)); + /* enable N/CTS */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, + BIT(6), BIT(6)); + /* not copyrighted */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CFG1, + BIT(5), BIT(5)); + /* enable audio infoframes */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, + BIT(3), BIT(3)); + /* AV mute disable */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_GC(0), + BIT(7) | BIT(6), BIT(7)); + /* use Audio infoframe updated info */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_GC(1), + BIT(5), 0); + return 0; +} + +static void audio_shutdown(struct device *dev, void *data) +{ +} + +static const struct hdmi_codec_ops adv7511_codec_ops = { + .hw_params = adv7511_hdmi_hw_params, + .audio_shutdown = audio_shutdown, + .audio_startup = audio_startup, +}; + +static struct hdmi_codec_pdata codec_data = { + .ops = &adv7511_codec_ops, + .max_i2s_channels = 2, + .i2s = 1, +}; + +int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511) +{ + adv7511->audio_pdev = platform_device_register_data(dev, + HDMI_CODEC_DRV_NAME, + PLATFORM_DEVID_AUTO, + &codec_data, + sizeof(codec_data)); + return PTR_ERR_OR_ZERO(adv7511->audio_pdev); +} + +void adv7511_audio_exit(struct adv7511 *adv7511) +{ + if (adv7511->audio_pdev) { + platform_device_unregister(adv7511->audio_pdev); + adv7511->audio_pdev = NULL; + } +} diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index 8ed3906..8dba729 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -1037,6 +1037,8 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id) goto err_unregister_cec; } + adv7511_audio_init(dev, adv7511); + return 0; err_unregister_cec: @@ -1058,6 +1060,8 @@ static int adv7511_remove(struct i2c_client *i2c) drm_bridge_remove(&adv7511->bridge); + adv7511_audio_exit(adv7511); + i2c_unregister_device(adv7511->i2c_edid); kfree(adv7511->edid);