[PATCH] ASoC: Use of_property_present() for testing DT property presence

[Rob Herring]

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.

Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
 sound/soc/codecs/lpass-macro-common.c | 2 +-
 sound/soc/generic/audio-graph-card.c  | 2 +-
 sound/soc/generic/audio-graph-card2.c | 2 +-
 sound/soc/mxs/mxs-sgtl5000.c          | 2 +-
 sound/soc/samsung/i2s.c               | 2 +-
 sound/soc/sh/fsi.c                    | 2 +-
 sound/soc/stm/stm32_i2s.c             | 2 +-
 sound/soc/stm/stm32_sai_sub.c         | 4 ++--
 sound/soc/tegra/tegra_asoc_machine.c  | 2 +-
 9 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.c b/sound/soc/codecs/lpass-macro-common.c
index 1b9082d237c1..f54baaad54d4 100644
--- a/sound/soc/codecs/lpass-macro-common.c
+++ b/sound/soc/codecs/lpass-macro-common.c
@@ -16,7 +16,7 @@ struct lpass_macro *lpass_macro_pds_init(struct device *dev)
 	struct lpass_macro *l_pds;
 	int ret;
 
-	if (!of_find_property(dev->of_node, "power-domains", NULL))
+	if (!of_property_present(dev->of_node, "power-domains"))
 		return NULL;
 
 	l_pds = devm_kzalloc(dev, sizeof(*l_pds), GFP_KERNEL);
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 5daa824a4ffc..d788f5f23a8a 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -78,7 +78,7 @@ static int graph_get_dai_id(struct device_node *ep)
 		 * only of_graph_parse_endpoint().
 		 * We need to check "reg" property
 		 */
-		if (of_get_property(ep,   "reg", NULL))
+		if (of_property_present(ep,   "reg"))
 			return info.id;
 
 		node = of_get_parent(ep);
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 06609a526b78..259544f64df9 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -376,7 +376,7 @@ static int graph_get_dai_id(struct device_node *ep)
 		 * only of_graph_parse_endpoint().
 		 * We need to check "reg" property
 		 */
-		if (of_get_property(ep,   "reg", NULL))
+		if (of_property_present(ep,   "reg"))
 			return info.id;
 
 		node = of_get_parent(ep);
diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index 746f40938675..a55e7256a4c3 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -150,7 +150,7 @@ static int mxs_sgtl5000_probe(struct platform_device *pdev)
 
 	card->dev = &pdev->dev;
 
-	if (of_find_property(np, "audio-routing", NULL)) {
+	if (of_property_present(np, "audio-routing")) {
 		card->dapm_widgets = mxs_sgtl5000_dapm_widgets;
 		card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets);
 
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 6f96032090de..083e278aa021 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1289,7 +1289,7 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)
 	int ret, i;
 
 	/* Register the clock provider only if it's expected in the DTB */
-	if (!of_find_property(dev->of_node, "#clock-cells", NULL))
+	if (!of_property_present(dev->of_node, "#clock-cells"))
 		return 0;
 
 	/* Get the RCLKSRC mux clock parent clock names */
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index f3edc2e3d9d7..9f3f1af6349f 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -1855,7 +1855,7 @@ static void fsi_of_parse(char *name,
 
 	for (i = 0; i < ARRAY_SIZE(of_parse_property); i++) {
 		sprintf(prop, "%s,%s", name, of_parse_property[i].name);
-		if (of_get_property(np, prop, NULL))
+		if (of_property_present(np, prop))
 			flags |= of_parse_property[i].val;
 	}
 	info->flags = flags;
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index f3dd9f8e621c..9dad85ecb93f 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -1066,7 +1066,7 @@ static int stm32_i2s_parse_dt(struct platform_device *pdev,
 				     "Could not get x11k parent clock\n");
 
 	/* Register mclk provider if requested */
-	if (of_find_property(np, "#clock-cells", NULL)) {
+	if (of_property_present(np, "#clock-cells")) {
 		ret = stm32_i2s_add_mclk_provider(i2s);
 		if (ret < 0)
 			return ret;
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index eb31b49e6597..8ba4206f751d 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1394,7 +1394,7 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 
 	/* Get spdif iec60958 property */
 	sai->spdif = false;
-	if (of_get_property(np, "st,iec60958", NULL)) {
+	if (of_property_present(np, "st,iec60958")) {
 		if (!STM_SAI_HAS_SPDIF(sai) ||
 		    sai->dir == SNDRV_PCM_STREAM_CAPTURE) {
 			dev_err(&pdev->dev, "S/PDIF IEC60958 not supported\n");
@@ -1480,7 +1480,7 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 		return 0;
 
 	/* Register mclk provider if requested */
-	if (of_find_property(np, "#clock-cells", NULL)) {
+	if (of_property_present(np, "#clock-cells")) {
 		ret = stm32_sai_add_mclk_provider(sai);
 		if (ret < 0)
 			return ret;
diff --git a/sound/soc/tegra/tegra_asoc_machine.c b/sound/soc/tegra/tegra_asoc_machine.c
index 78faa8bcae27..2dc1f44c5a8b 100644
--- a/sound/soc/tegra/tegra_asoc_machine.c
+++ b/sound/soc/tegra/tegra_asoc_machine.c
@@ -502,7 +502,7 @@ int tegra_asoc_machine_probe(struct platform_device *pdev)
 	 * If clock parents are not set in DT, configure here to use clk_out_1
 	 * as mclk and extern1 as parent for Tegra30 and higher.
 	 */
-	if (!of_find_property(dev->of_node, "assigned-clock-parents", NULL) &&
+	if (!of_property_present(dev->of_node, "assigned-clock-parents") &&
 	    !of_machine_is_compatible("nvidia,tegra20")) {
 		struct clk *clk_out_1, *clk_extern1;
 
-- 
2.39.2