[PATCH AUTOSEL 5.4 02/50] media: mdk-mdp: fix pm_runtime_get_sync() usage count

[PATCH AUTOSEL 5.4 02/50] media: mdk-mdp: fix pm_runtime_get_sync() usage count

[Sasha Levin]

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

[ Upstream commit d07bb9702cf5f5ccf3fb661e6cab54bbc33cd23f ]

The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.

While here, fix the return contition of mtk_mdp_m2m_start_streaming(),
as it doesn't make any sense to return 0 if the PM runtime failed
to resume.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
index 7c9e2d69e21a..34bc2949e1d6 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
@@ -402,12 +402,12 @@ static int mtk_mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
 	struct mtk_mdp_ctx *ctx = q->drv_priv;
 	int ret;
 
-	ret = pm_runtime_get_sync(&ctx->mdp_dev->pdev->dev);
+	ret = pm_runtime_resume_and_get(&ctx->mdp_dev->pdev->dev);
 	if (ret < 0)
-		mtk_mdp_dbg(1, "[%d] pm_runtime_get_sync failed:%d",
+		mtk_mdp_dbg(1, "[%d] pm_runtime_resume_and_get failed:%d",
 			    ctx->id, ret);
 
-	return 0;
+	return ret;
 }
 
 static void *mtk_mdp_m2m_buf_remove(struct mtk_mdp_ctx *ctx,
-- 
2.30.2


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[PATCH AUTOSEL 5.4 05/50] media: mtk-vcodec: fix PM runtime get logic

[Sasha Levin]

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

[ Upstream commit 908711f542c17fe61e5d653da1beb8e5ab5c7b50 ]

Currently, the driver just assumes that PM runtime logic
succeded resuming the device.

That may not be the case, as pm_runtime_get_sync()
can fail (but keeping the usage count incremented).

Replace the code to use pm_runtime_resume_and_get(),
and letting it return the error code.

This way, if mtk_vcodec_dec_pw_on() fails, the logic
under fops_vcodec_open() will do the right thing and
return an error, instead of just assuming that the
device is ready to be used.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 4 +++-
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c  | 8 +++++---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h  | 2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 00d090df11bb..4cde1a54e725 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -142,7 +142,9 @@ static int fops_vcodec_open(struct file *file)
 	mtk_vcodec_dec_set_default_params(ctx);
 
 	if (v4l2_fh_is_singular(&ctx->fh)) {
-		mtk_vcodec_dec_pw_on(&dev->pm);
+		ret = mtk_vcodec_dec_pw_on(&dev->pm);
+		if (ret < 0)
+			goto err_load_fw;
 		/*
 		 * vpu_load_firmware checks if it was loaded already and
 		 * does nothing in that case
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index f9bbd0000bf3..34e9e067de20 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -89,13 +89,15 @@ void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
 	put_device(dev->pm.larbvdec);
 }
 
-void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
 {
 	int ret;
 
-	ret = pm_runtime_get_sync(pm->dev);
+	ret = pm_runtime_resume_and_get(pm->dev);
 	if (ret)
-		mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);
+		mtk_v4l2_err("pm_runtime_resume_and_get fail %d", ret);
+
+	return ret;
 }
 
 void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index 872d8bf8cfaf..280aeaefdb65 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -12,7 +12,7 @@
 int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *dev);
 void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev);
 
-void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
 void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
 void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
 void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
-- 
2.30.2


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[PATCH AUTOSEL 5.4 06/50] media: s5p-jpeg: fix pm_runtime_get_sync() usage count

[Sasha Levin]

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

[ Upstream commit 10343de268d10cf07b092b8b525e12ad558ead77 ]

The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.

As a plus, pm_runtime_resume_and_get() doesn't return
positive numbers, so the return code validation can
be removed.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/s5p-jpeg/jpeg-core.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 8dbbd5f2a40a..06e17946bbb6 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -2579,11 +2579,8 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb)
 static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
 {
 	struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q);
-	int ret;
-
-	ret = pm_runtime_get_sync(ctx->jpeg->dev);
 
-	return ret > 0 ? 0 : ret;
+	return pm_runtime_resume_and_get(ctx->jpeg->dev);
 }
 
 static void s5p_jpeg_stop_streaming(struct vb2_queue *q)
-- 
2.30.2


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[PATCH AUTOSEL 5.4 08/50] media: exynos-gsc: fix pm_runtime_get_sync() usage count

[Sasha Levin]

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

[ Upstream commit 59087b66ea6730c130c57d23bd9fd139b78c1ba5 ]

The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.

As a bonus, as pm_runtime_get_sync() always return 0 on
success, the logic can be simplified.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/exynos-gsc/gsc-m2m.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index 35a1d0d6dd66..42d1e4496efa 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -56,10 +56,8 @@ static void __gsc_m2m_job_abort(struct gsc_ctx *ctx)
 static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
 {
 	struct gsc_ctx *ctx = q->drv_priv;
-	int ret;
 
-	ret = pm_runtime_get_sync(&ctx->gsc_dev->pdev->dev);
-	return ret > 0 ? 0 : ret;
+	return pm_runtime_resume_and_get(&ctx->gsc_dev->pdev->dev);
 }
 
 static void __gsc_m2m_cleanup_queue(struct gsc_ctx *ctx)
-- 
2.30.2


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[PATCH AUTOSEL 5.4 12/50] regulator: uniphier: Add missing MODULE_DEVICE_TABLE

[Sasha Levin]

From: Zou Wei <zou_wei@huawei.com>

[ Upstream commit d019f38a1af3c6015cde6a47951a3ec43beeed80 ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1620705198-104566-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/uniphier-regulator.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/uniphier-regulator.c b/drivers/regulator/uniphier-regulator.c
index 2311924c3103..2904c7bb4767 100644
--- a/drivers/regulator/uniphier-regulator.c
+++ b/drivers/regulator/uniphier-regulator.c
@@ -203,6 +203,7 @@ static const struct of_device_id uniphier_regulator_match[] = {
 	},
 	{ /* Sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, uniphier_regulator_match);
 
 static struct platform_driver uniphier_regulator_driver = {
 	.probe = uniphier_regulator_probe,
-- 
2.30.2


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[PATCH AUTOSEL 5.4 13/50] hwrng: exynos - Fix runtime PM imbalance on error

[Sasha Levin]

From: Łukasz Stelmach <l.stelmach@samsung.com>

[ Upstream commit 0cdbabf8bb7a6147f5adf37dbc251e92a1bbc2c7 ]

pm_runtime_resume_and_get() wraps around pm_runtime_get_sync() and
decrements the runtime PM usage counter in case the latter function
fails and keeps the counter balanced.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/hw_random/exynos-trng.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/hw_random/exynos-trng.c b/drivers/char/hw_random/exynos-trng.c
index b4b52ab23b6b..b4e931dbff66 100644
--- a/drivers/char/hw_random/exynos-trng.c
+++ b/drivers/char/hw_random/exynos-trng.c
@@ -134,7 +134,7 @@ static int exynos_trng_probe(struct platform_device *pdev)
 		return PTR_ERR(trng->mem);
 
 	pm_runtime_enable(&pdev->dev);
-	ret = pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Could not get runtime PM.\n");
 		goto err_pm_get;
@@ -167,7 +167,7 @@ static int exynos_trng_probe(struct platform_device *pdev)
 	clk_disable_unprepare(trng->clk);
 
 err_clock:
-	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
 
 err_pm_get:
 	pm_runtime_disable(&pdev->dev);
-- 
2.30.2


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[PATCH AUTOSEL 5.4 19/50] media: imx: imx7_mipi_csis: Fix logging of only error event counters

[Sasha Levin]

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

[ Upstream commit d2fcc9c2de1191ea80366e3658711753738dd10a ]

The mipi_csis_events array ends with 6 non-error events, not 4. Update
mipi_csis_log_counters() accordingly. While at it, log event counters in
forward order, as there's no reason to log them backward.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/imx/imx7-mipi-csis.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index 021bbd420390..63bc78e4cac8 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -528,13 +528,15 @@ static void mipi_csis_clear_counters(struct csi_state *state)
 
 static void mipi_csis_log_counters(struct csi_state *state, bool non_errors)
 {
-	int i = non_errors ? MIPI_CSIS_NUM_EVENTS : MIPI_CSIS_NUM_EVENTS - 4;
+	unsigned int num_events = non_errors ? MIPI_CSIS_NUM_EVENTS
+				: MIPI_CSIS_NUM_EVENTS - 6;
 	struct device *dev = &state->pdev->dev;
 	unsigned long flags;
+	unsigned int i;
 
 	spin_lock_irqsave(&state->slock, flags);
 
-	for (i--; i >= 0; i--) {
+	for (i = 0; i < num_events; ++i) {
 		if (state->events[i].counter > 0 || state->debug)
 			dev_info(dev, "%s events: %d\n", state->events[i].name,
 				 state->events[i].counter);
-- 
2.30.2


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[PATCH AUTOSEL 5.4 35/50] media: imx-csi: Skip first few frames from a BT.656 source

[Sasha Levin]

From: Steve Longerbeam <slongerbeam@gmail.com>

[ Upstream commit e198be37e52551bb863d07d2edc535d0932a3c4f ]

Some BT.656 sensors (e.g. ADV718x) transmit frames with unstable BT.656
sync codes after initial power on. This confuses the imx CSI,resulting
in vertical and/or horizontal sync issues. Skip the first 20 frames
to avoid the unstable sync codes.

[fabio: fixed checkpatch warning and increased the frame skipping to 20]

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/imx/imx-media-csi.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 367e39f5b382..40b7e60f4a47 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -753,9 +753,10 @@ static int csi_setup(struct csi_priv *priv)
 
 static int csi_start(struct csi_priv *priv)
 {
-	struct v4l2_fract *output_fi;
+	struct v4l2_fract *input_fi, *output_fi;
 	int ret;
 
+	input_fi = &priv->frame_interval[CSI_SINK_PAD];
 	output_fi = &priv->frame_interval[priv->active_output_pad];
 
 	/* start upstream */
@@ -764,6 +765,17 @@ static int csi_start(struct csi_priv *priv)
 	if (ret)
 		return ret;
 
+	/* Skip first few frames from a BT.656 source */
+	if (priv->upstream_ep.bus_type == V4L2_MBUS_BT656) {
+		u32 delay_usec, bad_frames = 20;
+
+		delay_usec = DIV_ROUND_UP_ULL((u64)USEC_PER_SEC *
+			input_fi->numerator * bad_frames,
+			input_fi->denominator);
+
+		usleep_range(delay_usec, delay_usec + 1000);
+	}
+
 	if (priv->dest == IPU_CSI_DEST_IDMAC) {
 		ret = csi_idmac_start(priv);
 		if (ret)
-- 
2.30.2


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[PATCH AUTOSEL 5.4 38/50] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()

[Sasha Levin]

From: Jing Xiangfeng <jingxiangfeng@huawei.com>

[ Upstream commit d96b1b8c9f79b6bb234a31c80972a6f422079376 ]

ddr_perf_probe() misses to call ida_simple_remove() in an error path.
Jump to cpuhp_state_err to fix it.

Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20210617122614.166823-1-jingxiangfeng@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 09f44c6e2eaf..726ed8f59868 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -562,8 +562,10 @@ static int ddr_perf_probe(struct platform_device *pdev)
 
 	name = devm_kasprintf(&pdev->dev, GFP_KERNEL, DDR_PERF_DEV_NAME "%d",
 			      num);
-	if (!name)
-		return -ENOMEM;
+	if (!name) {
+		ret = -ENOMEM;
+		goto cpuhp_state_err;
+	}
 
 	pmu->devtype_data = of_device_get_match_data(&pdev->dev);
 
-- 
2.30.2


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[PATCH AUTOSEL 5.4 48/50] regulator: mt6358: Fix vdram2 .vsel_mask

[Sasha Levin]

From: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>

[ Upstream commit 50c9462edcbf900f3d5097ca3ad60171346124de ]

The valid vsel value are 0 and 12, so the .vsel_mask should be 0xf.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/1624424169-510-1-git-send-email-hsin-hsiung.wang@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/mt6358-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index ba42682e06f3..40e09b1d323d 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -457,7 +457,7 @@ static struct mt6358_regulator_info mt6358_regulators[] = {
 	MT6358_REG_FIXED("ldo_vaud28", VAUD28,
 			 MT6358_LDO_VAUD28_CON0, 0, 2800000),
 	MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
-		   MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10, 0),
+		   MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf, 0),
 	MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
 		   MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00, 8),
 	MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
-- 
2.30.2


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