linux-kernel - [PATCH V4 08/10] hte: Deprecate nvidia,slices property

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Date:   Wed, 22 Mar 2023 18:29:27 -0700
From:   Dipen Patel <dipenp@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>, <linus.walleij@...aro.org>,
        <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <robh+dt@...nel.org>, <timestamp@...ts.linux.dev>,
        <krzysztof.kozlowski+dt@...aro.org>, <brgl@...ev.pl>,
        <corbet@....net>, <gregkh@...uxfoundation.org>
CC:     Dipen Patel <dipenp@...dia.com>
Subject: [PATCH V4 08/10] hte: Deprecate nvidia,slices property

The relevant DT bindings deprecates nvidia,slices property from
Tegra234 SoC onwards, moving the slices value per SoC data structure
instead.

Signed-off-by: Dipen Patel <dipenp@...dia.com>
---
 drivers/hte/hte-tegra194.c | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/drivers/hte/hte-tegra194.c b/drivers/hte/hte-tegra194.c
index 5d1f947db0f6..945c68c5e476 100644
--- a/drivers/hte/hte-tegra194.c
+++ b/drivers/hte/hte-tegra194.c
@@ -118,6 +118,7 @@ struct tegra_hte_line_data {
 
 struct tegra_hte_data {
 	enum tegra_hte_type type;
+	u32 slices;
 	u32 map_sz;
 	u32 sec_map_sz;
 	const struct tegra_hte_line_mapped *map;
@@ -323,6 +324,7 @@ static const struct tegra_hte_data t194_aon_hte = {
 	.sec_map_sz = ARRAY_SIZE(tegra194_aon_gpio_sec_map),
 	.sec_map = tegra194_aon_gpio_sec_map,
 	.type = HTE_TEGRA_TYPE_GPIO,
+	.slices = 3,
 };
 
 static const struct tegra_hte_data t234_aon_hte = {
@@ -331,12 +333,21 @@ static const struct tegra_hte_data t234_aon_hte = {
 	.sec_map_sz = ARRAY_SIZE(tegra234_aon_gpio_sec_map),
 	.sec_map = tegra234_aon_gpio_sec_map,
 	.type = HTE_TEGRA_TYPE_GPIO,
+	.slices = 3,
 };
 
-static const struct tegra_hte_data lic_hte = {
+static const struct tegra_hte_data t194_lic_hte = {
 	.map_sz = 0,
 	.map = NULL,
 	.type = HTE_TEGRA_TYPE_LIC,
+	.slices = 11,
+};
+
+static const struct tegra_hte_data t234_lic_hte = {
+	.map_sz = 0,
+	.map = NULL,
+	.type = HTE_TEGRA_TYPE_LIC,
+	.slices = 17,
 };
 
 static inline u32 tegra_hte_readl(struct tegra_hte_soc *hte, u32 reg)
@@ -639,9 +650,9 @@ static bool tegra_hte_match_from_linedata(const struct hte_chip *chip,
 }
 
 static const struct of_device_id tegra_hte_of_match[] = {
-	{ .compatible = "nvidia,tegra194-gte-lic", .data = &lic_hte},
+	{ .compatible = "nvidia,tegra194-gte-lic", .data = &t194_lic_hte},
 	{ .compatible = "nvidia,tegra194-gte-aon", .data = &t194_aon_hte},
-	{ .compatible = "nvidia,tegra234-gte-lic", .data = &lic_hte},
+	{ .compatible = "nvidia,tegra234-gte-lic", .data = &t234_lic_hte},
 	{ .compatible = "nvidia,tegra234-gte-aon", .data = &t234_aon_hte},
 	{ }
 };
@@ -679,13 +690,6 @@ static int tegra_hte_probe(struct platform_device *pdev)
 
 	dev = &pdev->dev;
 
-	ret = of_property_read_u32(dev->of_node, "nvidia,slices", &slices);
-	if (ret != 0) {
-		dev_err(dev, "Could not read slices\n");
-		return -EINVAL;
-	}
-	nlines = slices << 5;
-
 	hte_dev = devm_kzalloc(dev, sizeof(*hte_dev), GFP_KERNEL);
 	if (!hte_dev)
 		return -ENOMEM;
@@ -697,6 +701,13 @@ static int tegra_hte_probe(struct platform_device *pdev)
 	dev_set_drvdata(&pdev->dev, hte_dev);
 	hte_dev->prov_data = of_device_get_match_data(&pdev->dev);
 
+	ret = of_property_read_u32(dev->of_node, "nvidia,slices", &slices);
+	if (ret != 0)
+		slices = hte_dev->prov_data->slices;
+
+	dev_dbg(dev, "slices:%d\n", slices);
+	nlines = slices << 5;
+
 	hte_dev->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hte_dev->regs))
 		return PTR_ERR(hte_dev->regs);
-- 
2.17.1