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charset="utf-8" For SoCs like gs101 that need a special regmap, register this with of_syscon_register_regmap api, so it can be returned by syscon_regmap_lookup_by_phandle() and friends. For SoCs that don't require a custom regmap, revert back to syscon creating the mmio regmap rather than duplicating the logic here. exynos_get_pmu_regmap_by_phandle() api is also updated to retrieve the regmap via syscon. The exynos_get_pmu_regmap_by_phandle() api is kept around until fw_devlink support for syscon property is added for the pinctrl-samsung driver that also runs at postcore_initcall level. All other exynos client drivers can revert back to syscon_regmap_lookup_by_phandle(). Signed-off-by: Peter Griffin Reviewed-by: Arnd Bergmann Reviewed-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Tested-by: Will McVicker --- Changes in v2: - None - Link to v2: https://lore.kernel.org/linux-arm-kernel/20240620112446.1286= 223-3-peter.griffin@linaro.org/ Changes since v1: - pass pmu_np (not np) to syscon_node_to_regmap() (reported by William) - Link to v1: https://lore.kernel.org/linux-arm-kernel/20240614140421.3172= 674-3-peter.griffin@linaro.org/ --- drivers/soc/samsung/exynos-pmu.c | 38 ++++++++++++-------------------- 1 file changed, 14 insertions(+), 24 deletions(-) diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-= pmu.c index fd8b6ac06656..624324f4001c 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -204,16 +204,6 @@ static const struct regmap_config regmap_smccfg =3D { .reg_update_bits =3D tensor_sec_update_bits, }; =20 -static const struct regmap_config regmap_mmiocfg =3D { - .name =3D "pmu_regs", - .reg_bits =3D 32, - .reg_stride =3D 4, - .val_bits =3D 32, - .fast_io =3D true, - .use_single_read =3D true, - .use_single_write =3D true, -}; - static const struct exynos_pmu_data gs101_pmu_data =3D { .pmu_secure =3D true }; @@ -290,7 +280,6 @@ EXPORT_SYMBOL_GPL(exynos_get_pmu_regmap); struct regmap *exynos_get_pmu_regmap_by_phandle(struct device_node *np, const char *propname) { - struct exynos_pmu_context *ctx; struct device_node *pmu_np; struct device *dev; =20 @@ -316,9 +305,7 @@ struct regmap *exynos_get_pmu_regmap_by_phandle(struct = device_node *np, if (!dev) return ERR_PTR(-EPROBE_DEFER); =20 - ctx =3D dev_get_drvdata(dev); - - return ctx->pmureg; + return syscon_node_to_regmap(pmu_np); } EXPORT_SYMBOL_GPL(exynos_get_pmu_regmap_by_phandle); =20 @@ -355,19 +342,22 @@ static int exynos_pmu_probe(struct platform_device *p= dev) regmap =3D devm_regmap_init(dev, NULL, (void *)(uintptr_t)res->start, &pmu_regmcfg); + + if (IS_ERR(regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(regmap), + "regmap init failed\n"); + + ret =3D of_syscon_register_regmap(dev->of_node, regmap); + if (ret) + return ret; } else { - /* All other SoCs use a MMIO regmap */ - pmu_regmcfg =3D regmap_mmiocfg; - pmu_regmcfg.max_register =3D resource_size(res) - - pmu_regmcfg.reg_stride; - regmap =3D devm_regmap_init_mmio(dev, pmu_base_addr, - &pmu_regmcfg); + /* let syscon create mmio regmap */ + regmap =3D syscon_node_to_regmap(dev->of_node); + if (IS_ERR(regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(regmap), + "syscon_node_to_regmap failed\n"); } =20 - if (IS_ERR(regmap)) - return dev_err_probe(&pdev->dev, PTR_ERR(regmap), - "regmap init failed\n"); - pmu_context->pmureg =3D regmap; pmu_context->dev =3D dev; =20 --=20 2.45.2.741.gdbec12cfda-goog