From e6b84cc2a6fe62b4070d73f2d2d7b2544a11df87 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Tue, 9 Sep 2025 02:10:53 +0800 Subject: [PATCH] soc: sunxi: sram: register regmap as syscon If the system controller had a ethernet controller glue layer control register, a limited access regmap would be registered and tied to the system controller struct device for the ethernet driver to use. Until now, for the ethernet driver to acquire this regmap, it had to do a of_parse_phandle() + find device + dev_get_regmap() sequence. Since the syscon framework allows a provider to register a custom regmap for its device node, and the ethernet driver already uses syscon for one platform, this provides a much more easier way to pass the regmap. Use of_syscon_register_regmap() to register our regmap with the syscon framework so that consumers can retrieve it that way. Acked-by: Jernej Skrabec Link: https://patch.msgid.link/20250908181059.1785605-5-wens@kernel.org Signed-off-by: Chen-Yu Tsai --- drivers/soc/sunxi/sunxi_sram.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c index 16144a0a0d37..446b9fc1f175 100644 --- a/drivers/soc/sunxi/sunxi_sram.c +++ b/drivers/soc/sunxi/sunxi_sram.c @@ -12,6 +12,7 @@ #include #include +#include #include #include #include @@ -367,6 +368,7 @@ static int __init sunxi_sram_probe(struct platform_device *pdev) const struct sunxi_sramc_variant *variant; struct device *dev = &pdev->dev; struct regmap *regmap; + int ret; sram_dev = &pdev->dev; @@ -384,6 +386,10 @@ static int __init sunxi_sram_probe(struct platform_device *pdev) regmap = devm_regmap_init_mmio(dev, base, &sunxi_sram_regmap_config); if (IS_ERR(regmap)) return PTR_ERR(regmap); + + ret = of_syscon_register_regmap(dev->of_node, regmap); + if (ret) + return ret; } of_platform_populate(dev->of_node, NULL, NULL, dev); -- 2.51.0