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[88.13.29.106]) by smtp.gmail.com with ESMTPSA id a4-20020a5d5704000000b002c559843748sm6806122wrv.10.2023.02.27.02.58.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Feb 2023 02:58:16 -0800 (PST) From: Sergio Paracuellos To: linux-mips@vger.kernel.org Cc: tsbogend@alpha.franken.de, john@phrozen.org, linux-kernel@vger.kernel.org, git@johnthomson.fastmail.com.au Subject: [PATCH 09/12] mips: ralink: rt288x: introduce 'soc_device' initialization Date: Mon, 27 Feb 2023 11:58:03 +0100 Message-Id: <20230227105806.2394101-10-sergio.paracuellos@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230227105806.2394101-1-sergio.paracuellos@gmail.com> References: <20230227105806.2394101-1-sergio.paracuellos@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org RT288X SoCs have their own 'ralink_soc_info' structure with some information about the soc itself. In order to be able to retrieve this information from driver code and avoid architecture dependencies for retrieving these details introduce this 'soc_device'. Set 'data' pointer points to the struct 'ralink_soc_info' to be able to export also current soc information using this mechanism. We need to select 'SOC_BUS' in Kconfig configuration for these SoCs. Signed-off-by: Sergio Paracuellos --- arch/mips/ralink/Kconfig | 1 + arch/mips/ralink/rt288x.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig index f657e55b10b7..3e01e2df96b0 100644 --- a/arch/mips/ralink/Kconfig +++ b/arch/mips/ralink/Kconfig @@ -29,6 +29,7 @@ choice select MIPS_AUTO_PFN_OFFSET select MIPS_L1_CACHE_SHIFT_4 select HAVE_PCI + select SOC_BUS config SOC_RT305X bool "RT305x" diff --git a/arch/mips/ralink/rt288x.c b/arch/mips/ralink/rt288x.c index a417b8b89b94..456ba0b2599e 100644 --- a/arch/mips/ralink/rt288x.c +++ b/arch/mips/ralink/rt288x.c @@ -10,6 +10,8 @@ #include #include +#include +#include #include #include @@ -17,6 +19,8 @@ #include "common.h" +static struct ralink_soc_info *soc_info_ptr; + void __init ralink_clk_init(void) { unsigned long cpu_rate, wmac_rate = 40000000; @@ -98,6 +102,31 @@ static unsigned int __init rt2880_get_soc_rev(void) { return (rt2880_get_soc_id() & CHIP_ID_REV_MASK); } + +static int __init rt2880_soc_dev_init(void) +{ + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) + return -ENOMEM; + + soc_dev_attr->family = "Ralink"; + soc_dev_attr->soc_id = rt2880_get_soc_name(); + + soc_dev_attr->data = soc_info_ptr; + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr); + return PTR_ERR(soc_dev); + } + + return 0; +} +device_initcall(rt2880_soc_dev_init); + void __init prom_soc_init(struct ralink_soc_info *soc_info) { if (rt2880_soc_valid()) @@ -117,4 +146,5 @@ void __init prom_soc_init(struct ralink_soc_info *soc_info) soc_info->mem_size_max = RT2880_MEM_SIZE_MAX; ralink_soc = RT2880_SOC; + soc_info_ptr = soc_info; }