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[217.229.16.64]) by smtp.gmail.com with ESMTPSA id v5sm45988189wrn.71.2019.01.03.06.23.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Jan 2019 06:23:21 -0800 (PST) From: Thierry Reding To: Thierry Reding Subject: [PATCH 3/3] drm/tegra: hdmi: Reuse common HDA format parser Date: Thu, 3 Jan 2019 15:23:17 +0100 Message-Id: <20190103142317.26124-3-thierry.reding@gmail.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190103142317.26124-1-thierry.reding@gmail.com> References: <20190103142317.26124-1-thierry.reding@gmail.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Sameer Pujar , Mohan Kumar , Ujwal Patel Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Thierry Reding Eliminate some duplicate code by reusing the HDA format parser already used by the SOR. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/hdmi.c | 43 +++++++----------------------------- 1 file changed, 8 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index d19973945614..8fdff801c6f2 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -20,8 +20,7 @@ #include #include -#include - +#include "hda.h" #include "hdmi.h" #include "drm.h" #include "dc.h" @@ -69,8 +68,7 @@ struct tegra_hdmi { const struct tegra_hdmi_config *config; unsigned int audio_source; - unsigned int audio_sample_rate; - unsigned int audio_channels; + struct tegra_hda_format format; unsigned int pixel_clock; bool stereo; @@ -508,7 +506,7 @@ static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value) unsigned int i; for (i = 0; i < ARRAY_SIZE(regs); i++) { - if (regs[i].sample_rate == hdmi->audio_sample_rate) { + if (regs[i].sample_rate == hdmi->format.sample_rate) { tegra_hdmi_writel(hdmi, value, regs[i].offset); break; } @@ -562,7 +560,7 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi) * play back system startup sounds early. It is possibly not * needed on Linux at all. */ - if (hdmi->audio_channels == 2) + if (hdmi->format.channels == 2) value = SOR_AUDIO_CNTRL0_INJECT_NULLSMPL; else value = 0; @@ -593,12 +591,12 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi) tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_SPARE0); } - config = tegra_hdmi_get_audio_config(hdmi->audio_sample_rate, + config = tegra_hdmi_get_audio_config(hdmi->format.sample_rate, hdmi->pixel_clock); if (!config) { dev_err(hdmi->dev, "cannot set audio to %u Hz at %u Hz pixel clock\n", - hdmi->audio_sample_rate, hdmi->pixel_clock); + hdmi->format.sample_rate, hdmi->pixel_clock); return -EINVAL; } @@ -785,7 +783,7 @@ static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi) return; } - frame.channels = hdmi->audio_channels; + frame.channels = hdmi->format.channels; err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); if (err < 0) { @@ -1587,24 +1585,6 @@ static const struct of_device_id tegra_hdmi_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra_hdmi_of_match); -static void hda_format_parse(unsigned int format, unsigned int *rate, - unsigned int *channels) -{ - unsigned int mul, div; - - if (format & AC_FMT_BASE_44K) - *rate = 44100; - else - *rate = 48000; - - mul = (format & AC_FMT_MULT_MASK) >> AC_FMT_MULT_SHIFT; - div = (format & AC_FMT_DIV_MASK) >> AC_FMT_DIV_SHIFT; - - *rate = *rate * (mul + 1) / (div + 1); - - *channels = (format & AC_FMT_CHAN_MASK) >> AC_FMT_CHAN_SHIFT; -} - static irqreturn_t tegra_hdmi_irq(int irq, void *data) { struct tegra_hdmi *hdmi = data; @@ -1621,14 +1601,9 @@ static irqreturn_t tegra_hdmi_irq(int irq, void *data) value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0); if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) { - unsigned int sample_rate, channels; - format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK; - hda_format_parse(format, &sample_rate, &channels); - - hdmi->audio_sample_rate = sample_rate; - hdmi->audio_channels = channels; + tegra_hda_parse_format(format, &hdmi->format); err = tegra_hdmi_setup_audio(hdmi); if (err < 0) { @@ -1662,8 +1637,6 @@ static int tegra_hdmi_probe(struct platform_device *pdev) hdmi->dev = &pdev->dev; hdmi->audio_source = AUTO; - hdmi->audio_sample_rate = 48000; - hdmi->audio_channels = 2; hdmi->stereo = false; hdmi->dvi = false;