From patchwork Mon Feb 3 10:01:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 13957285 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2A453C02193 for ; Mon, 3 Feb 2025 11:15:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kowjNUPkP18lH8FfnjhF2qNwuje3S4u8H7avaM0p5vE=; b=PL1y6yNqkUB1jI4YSEm6YWRaLe GY5NeGVK3CG3mZQeTZbNx5ofCcwE3VT7IaDIElof5e4hbWljw5XbgyegOsunkUsShSmS43kTlt0qp RzTnyV6apVajOF0AKe05/p2MhOhoMDHp6xDzv4HzsAxCwa7+N1d5BZtXOw7ay6iBQdGFq2vqL6roG epdKK/xGcHEPUeAq57c8q5EgeYaYG2lK34fVU0u7GXWvQk4WUbNjoIRxuUTqRQi1a+8pAjafDBEaM ljLmiy4LXpaK+Mrmpt+rWrcYxkdWPu26+N26BOY5nyhCsoL/R61RCBvi/nNdNTzH+QeO1xEjdsjSy vImpspBA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1teuQe-0000000FDG4-1P5B; Mon, 03 Feb 2025 11:15:48 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tetHW-0000000F4ls-30gE for linux-arm-kernel@lists.infradead.org; Mon, 03 Feb 2025 10:02:19 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3488F11FB; Mon, 3 Feb 2025 02:02:42 -0800 (PST) Received: from pluto.fritz.box (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BCB933F63F; Mon, 3 Feb 2025 02:02:16 -0800 (PST) From: Cristian Marussi To: cristian.marussi@arm.com Cc: arm-scmi@vger.kernel.org, guomin_chen@sina.com, linux-arm-kernel@lists.infradead.org, peng.fan@nxp.com, quic_xinqzhan@quicinc.com, sudeep.holla@arm.com Subject: [RFC PATCH 1/2] firmware: arm_scmi: Generate aliases for SCMI modules Date: Mon, 3 Feb 2025 10:01:53 +0000 Message-ID: <20250203100154.140877-1-cristian.marussi@arm.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250203_020218_876130_4A514A4D X-CRM114-Status: GOOD ( 12.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Generate aliases for SCMI modules to allow automatic module probing. Signed-off-by: Cristian Marussi --- include/linux/mod_devicetable.h | 6 ++++++ include/linux/scmi_protocol.h | 6 +----- scripts/mod/devicetable-offsets.c | 3 +++ scripts/mod/file2alias.c | 9 +++++++++ 4 files changed, 19 insertions(+), 5 deletions(-) diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 4338b1b4ac44..90c1f7bd4d1e 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -972,4 +972,10 @@ struct coreboot_device_id { kernel_ulong_t driver_data; }; +/* SCMI Devices */ +struct scmi_device_id { + __u8 protocol_id; + const char *name; +}; + #endif /* LINUX_MOD_DEVICETABLE_H */ diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index 5437275d3ac7..3d5c4b5a7dd8 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -1196,11 +1197,6 @@ struct scmi_device { #define to_scmi_dev(d) container_of_const(d, struct scmi_device, dev) -struct scmi_device_id { - u8 protocol_id; - const char *name; -}; - struct scmi_driver { const char *name; int (*probe)(struct scmi_device *sdev); diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index 9c7b404defbd..58d614109fae 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -281,5 +281,8 @@ int main(void) DEVID(coreboot_device_id); DEVID_FIELD(coreboot_device_id, tag); + DEVID(scmi_device_id); + DEVID_FIELD(scmi_device_id, protocol_id); + return 0; } diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 19ec72a69e90..f86f194a1711 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -510,6 +510,14 @@ static void do_css_entry(struct module *mod, void *symval) module_alias_printf(mod, false, "css:t%01X", type); } +/* looks like: "scmi:prN" */ +static void do_scmi_entry(struct module *mod, void *symval) +{ + DEF_FIELD(symval, scmi_device_id, protocol_id); + + module_alias_printf(mod, true, "scmi:pr%02X", protocol_id); +} + /* Looks like: "serio:tyNprNidNexN" */ static void do_serio_entry(struct module *mod, void *symval) { @@ -1471,6 +1479,7 @@ static const struct devtable devtable[] = { {"usb", SIZE_usb_device_id, do_usb_entry_multi}, {"pnp", SIZE_pnp_device_id, do_pnp_device_entry}, {"pnp_card", SIZE_pnp_card_device_id, do_pnp_card_entry}, + {"scmi", SIZE_scmi_device_id, do_scmi_entry}, }; /* Create MODULE_ALIAS() statements.