[PATCH AUTOSEL 5.10 02/34] clk: imx: Use div64_ul instead of do_div

[PATCH AUTOSEL 5.10 02/34] clk: imx: Use div64_ul instead of do_div

[Sasha Levin]

From: Changcheng Deng <deng.changcheng@zte.com.cn>

[ Upstream commit c1b6ad9a902539f9c037b6b3c35cb134c5724022 ]

do_div() does a 64-by-32 division. Here the divisor is an unsigned long
which on some platforms is 64 bit wide. So use div64_ul instead of do_div
to avoid a possible truncation.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20211118080634.165275-1-deng.changcheng@zte.com.cn
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/imx/clk-pllv3.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index 20ee9611ba6e3..eea32f87c60aa 100644
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -247,7 +247,7 @@ static long clk_pllv3_av_round_rate(struct clk_hw *hw, unsigned long rate,
 	div = rate / parent_rate;
 	temp64 = (u64) (rate - div * parent_rate);
 	temp64 *= mfd;
-	do_div(temp64, parent_rate);
+	temp64 = div64_ul(temp64, parent_rate);
 	mfn = temp64;
 
 	temp64 = (u64)parent_rate;
@@ -277,7 +277,7 @@ static int clk_pllv3_av_set_rate(struct clk_hw *hw, unsigned long rate,
 	div = rate / parent_rate;
 	temp64 = (u64) (rate - div * parent_rate);
 	temp64 *= mfd;
-	do_div(temp64, parent_rate);
+	temp64 = div64_ul(temp64, parent_rate);
 	mfn = temp64;
 
 	val = readl_relaxed(pll->base);
@@ -334,7 +334,7 @@ static struct clk_pllv3_vf610_mf clk_pllv3_vf610_rate_to_mf(
 		/* rate = parent_rate * (mfi + mfn/mfd) */
 		temp64 = rate - parent_rate * mf.mfi;
 		temp64 *= mf.mfd;
-		do_div(temp64, parent_rate);
+		temp64 = div64_ul(temp64, parent_rate);
 		mf.mfn = temp64;
 	}
 
-- 
2.34.1


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[PATCH AUTOSEL 5.10 11/34] clk: meson: gxbb: Fix the SDM_EN bit for MPLL0 on GXBB

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit ff54938dd190d85f740b9bf9dde59b550936b621 ]

There are reports that 48kHz audio does not work on the WeTek Play 2
(which uses a GXBB SoC), while 44.1kHz audio works fine on the same
board. There are also reports of 48kHz audio working fine on GXL and
GXM SoCs, which are using an (almost) identical AIU (audio controller).

Experimenting has shown that MPLL0 is causing this problem. In the .dts
we have by default:
	assigned-clocks = <&clkc CLKID_MPLL0>,
			  <&clkc CLKID_MPLL1>,
			  <&clkc CLKID_MPLL2>;
	assigned-clock-rates = <294912000>,
			       <270950400>,
			       <393216000>;
The MPLL0 rate is divisible by 48kHz without remainder and the MPLL1
rate is divisible by 44.1kHz without remainder. Swapping these two clock
rates "fixes" 48kHz audio but breaks 44.1kHz audio.

Everything looks normal when looking at the info provided by the common
clock framework while playing 48kHz audio (via I2S with mclk-fs = 256):
        mpll_prediv                 1        1        0  2000000000
           mpll0_div                1        1        0   294909641
              mpll0                 1        1        0   294909641
                 cts_amclk_sel       1        1        0   294909641
                    cts_amclk_div       1        1        0    12287902
                       cts_amclk       1        1        0    12287902

meson-clk-msr however shows that the actual MPLL0 clock is off by more
than 38MHz:
        mp0_out               333322917    +/-10416Hz

The rate seen by meson-clk-msr is very close to what we would get when
SDM (the fractional part) was ignored:
  (2000000000Hz * 16384) / ((16384 * 6) = 333.33MHz
If SDM was considered the we should get close to:
  (2000000000Hz * 16384) / ((16384 * 6) + 12808) = 294.9MHz

Further experimenting shows that HHI_MPLL_CNTL7[15] does not have any
effect on the rate of MPLL0 as seen my meson-clk-msr (regardless of
whether that bit is zero or one the rate is always the same according to
meson-clk-msr). Using HHI_MPLL_CNTL[25] on the other hand as SDM_EN
results in SDM being considered for the rate output by the hardware. The
rate - as seen by meson-clk-msr - matches with what we expect when
SDM_EN is enabled (fractional part is being considered, resulting in a
294.9MHz output) or disable (fractional part being ignored, resulting in
a 333.33MHz output).

Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20211031135006.1508796-1-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/gxbb.c | 44 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 0a68af6eec3dd..d42551a46ec91 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -712,6 +712,35 @@ static struct clk_regmap gxbb_mpll_prediv = {
 };
 
 static struct clk_regmap gxbb_mpll0_div = {
+	.data = &(struct meson_clk_mpll_data){
+		.sdm = {
+			.reg_off = HHI_MPLL_CNTL7,
+			.shift   = 0,
+			.width   = 14,
+		},
+		.sdm_en = {
+			.reg_off = HHI_MPLL_CNTL,
+			.shift   = 25,
+			.width	 = 1,
+		},
+		.n2 = {
+			.reg_off = HHI_MPLL_CNTL7,
+			.shift   = 16,
+			.width   = 9,
+		},
+		.lock = &meson_clk_lock,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "mpll0_div",
+		.ops = &meson_clk_mpll_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&gxbb_mpll_prediv.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap gxl_mpll0_div = {
 	.data = &(struct meson_clk_mpll_data){
 		.sdm = {
 			.reg_off = HHI_MPLL_CNTL7,
@@ -748,7 +777,16 @@ static struct clk_regmap gxbb_mpll0 = {
 	.hw.init = &(struct clk_init_data){
 		.name = "mpll0",
 		.ops = &clk_regmap_gate_ops,
-		.parent_hws = (const struct clk_hw *[]) { &gxbb_mpll0_div.hw },
+		.parent_data = &(const struct clk_parent_data) {
+			/*
+			 * Note:
+			 * GXL and GXBB have different SDM_EN registers. We
+			 * fallback to the global naming string mechanism so
+			 * mpll0_div picks up the appropriate one.
+			 */
+			.name = "mpll0_div",
+			.index = -1,
+		},
 		.num_parents = 1,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -3043,7 +3081,7 @@ static struct clk_hw_onecell_data gxl_hw_onecell_data = {
 		[CLKID_VAPB_1]		    = &gxbb_vapb_1.hw,
 		[CLKID_VAPB_SEL]	    = &gxbb_vapb_sel.hw,
 		[CLKID_VAPB]		    = &gxbb_vapb.hw,
-		[CLKID_MPLL0_DIV]	    = &gxbb_mpll0_div.hw,
+		[CLKID_MPLL0_DIV]	    = &gxl_mpll0_div.hw,
 		[CLKID_MPLL1_DIV]	    = &gxbb_mpll1_div.hw,
 		[CLKID_MPLL2_DIV]	    = &gxbb_mpll2_div.hw,
 		[CLKID_MPLL_PREDIV]	    = &gxbb_mpll_prediv.hw,
@@ -3438,7 +3476,7 @@ static struct clk_regmap *const gxl_clk_regmaps[] = {
 	&gxbb_mpll0,
 	&gxbb_mpll1,
 	&gxbb_mpll2,
-	&gxbb_mpll0_div,
+	&gxl_mpll0_div,
 	&gxbb_mpll1_div,
 	&gxbb_mpll2_div,
 	&gxbb_cts_amclk_div,
-- 
2.34.1


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[PATCH AUTOSEL 5.10 31/34] ASoC: mediatek: mt8173: fix device_node leak

[Sasha Levin]

From: Tzung-Bi Shih <tzungbi@google.com>

[ Upstream commit 493433785df0075afc0c106ab65f10a605d0b35d ]

Fixes the device_node leak.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/mediatek/mt8173/mt8173-max98090.c      | 3 +++
 sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c | 2 ++
 sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 2 ++
 sound/soc/mediatek/mt8173/mt8173-rt5650.c        | 2 ++
 4 files changed, 9 insertions(+)

diff --git a/sound/soc/mediatek/mt8173/mt8173-max98090.c b/sound/soc/mediatek/mt8173/mt8173-max98090.c
index fc94314bfc02f..3bdd4931316cd 100644
--- a/sound/soc/mediatek/mt8173/mt8173-max98090.c
+++ b/sound/soc/mediatek/mt8173/mt8173-max98090.c
@@ -180,6 +180,9 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(codec_node);
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
index 0f28dc2217c09..390da5bf727eb 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
@@ -218,6 +218,8 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
index 077c6ee067806..c8e4e85e10575 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
@@ -285,6 +285,8 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
index c28ebf891cb05..e168d31f44459 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
@@ -323,6 +323,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
-- 
2.34.1


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[PATCH AUTOSEL 5.10 32/34] ASoC: mediatek: mt8183: fix device_node leak

[Sasha Levin]

From: Tzung-Bi Shih <tzungbi@google.com>

[ Upstream commit cb006006fe6221f092fadaffd3f219288304c9ad ]

Fixes the device_node leak.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-3-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c         | 6 +++++-
 sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c | 7 ++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
index 20d31b69a5c00..9cc0f26b08fbc 100644
--- a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
@@ -787,7 +787,11 @@ static int mt8183_da7219_max98357_dev_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	return devm_snd_soc_register_card(&pdev->dev, card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	of_node_put(platform_node);
+	of_node_put(hdmi_codec);
+	return ret;
 }
 
 #ifdef CONFIG_OF
diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index 79ba2f2d84522..14ce8b93597f3 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -720,7 +720,12 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 				 __func__, ret);
 	}
 
-	return devm_snd_soc_register_card(&pdev->dev, card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	of_node_put(platform_node);
+	of_node_put(ec_codec);
+	of_node_put(hdmi_codec);
+	return ret;
 }
 
 #ifdef CONFIG_OF
-- 
2.34.1


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[PATCH AUTOSEL 5.10 33/34] phy: mediatek: Fix missing check in mtk_mipi_tx_probe

[Sasha Levin]

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 399c91c3f30531593e5ff6ca7b53f47092128669 ]

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20211224082103.7658-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/mediatek/mtk_mipi_tx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
index 8cee2591e7284..ccc742dc78bd9 100644
--- a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
+++ b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
@@ -147,6 +147,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	mipi_tx->regs = devm_ioremap_resource(dev, mem);
-- 
2.34.1


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