linux-kernel - [PATCH 7/9] soc: sunxi: sram: Save a pointer to the OF match data

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Date:   Sun, 31 Jul 2022 22:05:07 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>
Cc:     Samuel Holland <samuel@...lland.org>,
        Arnd Bergmann <arnd@...db.de>,
        Hans de Goede <hdegoede@...hat.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev
Subject: [PATCH 7/9] soc: sunxi: sram: Save a pointer to the OF match data

It is inefficient to match the compatible string every time the regmap
is accessed.

Signed-off-by: Samuel Holland <samuel@...lland.org>
---

 drivers/soc/sunxi/sunxi_sram.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c
index 9622fd45f5e5..7c6fb17cfe7f 100644
--- a/drivers/soc/sunxi/sunxi_sram.c
+++ b/drivers/soc/sunxi/sunxi_sram.c
@@ -305,9 +305,7 @@ static const struct sunxi_sramc_variant sun50i_h616_sramc_variant = {
 static bool sunxi_sram_regmap_accessible_reg(struct device *dev,
 					     unsigned int reg)
 {
-	const struct sunxi_sramc_variant *variant;
-
-	variant = of_device_get_match_data(dev);
+	const struct sunxi_sramc_variant *variant = dev_get_drvdata(dev);
 
 	if (reg < SUNXI_SRAM_EMAC_CLOCK_REG)
 		return false;
@@ -340,6 +338,8 @@ static int __init sunxi_sram_probe(struct platform_device *pdev)
 	if (!variant)
 		return -EINVAL;
 
+	dev_set_drvdata(dev, (struct sunxi_sramc_variant *)variant);
+
 	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
-- 
2.35.1