From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [13.76.142.27]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 59FBD25F99F; Tue, 26 Aug 2025 11:06:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.76.142.27 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756206403; cv=none; b=LaejObPYbdYChV57Nqf+R2dOBS4DD/Kgvcb/6SbCb7ijWIFDeR7n7U8dMIpWuJy24wbSA6nM/Y0ypODV5BGnhrb/nHWa2iI64dgG24lc21J0YhY0kHK5//gfvdkPGXzCTGZNfeNm1DSkoTNpVUHNMYFVtN2QYLExq1C9I9Bw9aQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756206403; c=relaxed/simple; bh=0DD07lInfMmXbGN+5tYxPVIh0qblkS1vxdwi59jO87s=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=PPSqdOU4rLebWmD/eGCpg/FZSaW+DwAYS74CkBjIwT9ippSCkOKqCWqnKjcC3uGOl6QIE3TvUVzY/cH9s0VFkuLl6iM4P0Et+e9sbJ+fspB5DLZZf4KX62jhv4zzVmyWUxiN21kqpDrkzf3c7hQOFAH4UdXHJYL6yXyIy/QJJVc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com; spf=pass smtp.mailfrom=eswincomputing.com; arc=none smtp.client-ip=13.76.142.27 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=eswincomputing.com Received: from E0005152DT.eswin.cn (unknown [10.12.96.41]) by app1 (Coremail) with SMTP id TAJkCgC3zg8sla1o3ObDAA--.48651S2; Tue, 26 Aug 2025 19:06:23 +0800 (CST) From: dongxuyang@eswincomputing.com To: p.zabel@pengutronix.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com, huangyifeng@eswincomputing.com, pinkesh.vaghela@einfochips.com, Xuyang Dong Subject: [PATCH v6 0/2] Add driver support for ESWIN eic7700 SoC reset controller Date: Tue, 26 Aug 2025 19:06:10 +0800 Message-Id: <20250826110610.1338-1-dongxuyang@eswincomputing.com> X-Mailer: git-send-email 2.31.1.windows.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:TAJkCgC3zg8sla1o3ObDAA--.48651S2 X-Coremail-Antispam: 1UD129KBjvJXoWxtF15WFyrXF1kJFWktr4UCFg_yoW7ArWUpF WUCry7Gr15Xr4xXa93ta1F93WSqanxtr15Gr47Jw47uan8Aa4UJrWrtF45AFyDAr97Xryf XF13uayF9FyjvFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBv14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lw4CEc2x0rVAKj4xxMxkF7I0En4kS14v26r1q6r43MxkIecxEwVCm-wCF04 k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18 MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr4 1lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1l IxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4 A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUmjgxUUUUU= X-CM-SenderInfo: pgrqw5xx1d0w46hv4xpqfrz1xxwl0woofrz/ From: Xuyang Dong This series depends on the vendor prefix [1] and config option patch [2]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250825&id=ac29e4487aa20a21b7c3facbd1f14f5093835dc9 [2] https://lore.kernel.org/all/20250825132427.1618089-3-pinkesh.vaghela@einfochips.com/ Updates: dt-bindings: reset: eswin: Documentation for eic7700 SoC v5 -> v6: Add dependencies of vendor prefix and config option patch in cover-letter. Link to v5: https://lore.kernel.org/all/20250725093249.669-1-dongxuyang@eswincomputing.com/ v4 -> v5: 1. Dropped EIC7700_RESET_MAX from bindings. 2. Add "Reviewed-by" tag of "Krzysztof Kozlowski" for Patch 1. 3. Corrected the link to previous versions. Link to v4: https://lore.kernel.org/all/20250715121427.1466-1-dongxuyang@eswincomputing.com/ v3 -> v4: 1. Remove register offsets in dt-bindings. 2. The const value of "#reset-cell" was changed from 2 to 1. Because the offsets were removed from dt-bindings. There are only IDs. And removed the description of it. 3. Modify copyright year from 2024 to 2025. 4. Redefined the IDs in the dt-bindings and used these to build a reset array in reset driver. Ensure that the reset register and reset value corresponding to the IDs are correct. Link to v3: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ v2 -> v3: 1. Drop syscon and simple-mfd from yaml and code, because these are not necessary. 2. Update description to introduce reset controller. 3. Add reset control indices for dt-bindings. 4. Keep the register offsets in dt-bindings. Link to v2: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ v1 -> v2: 1. Clear warnings/errors for using "make dt_binding_check". 2. Update example, change parent node from sys-crg to reset-controller for reset yaml. 3. Drop the child node and add '#reset-cells' to the parent node. 4. Drop the description, because sys-crg block is changed to reset- controller. 5. Change hex numbers to decimal numbers going from 0, and drop the not needed hardware numbers. Link to v1: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ reset: eswin: Add eic7700 reset driver v5 -> v6: 1. Removed platform_set_drvdata() function. 2. In probe function, defined struct device *dev = &pdev->dev. Modified &pdev->dev to dev. Link to v5: https://lore.kernel.org/all/20250725093249.669-1-dongxuyang@eswincomputing.com/ v4 -> v5: 1. The value of .max_register is 0x7fffc. 2. Converted "to_eswin_reset_data" from macro to inline function. 3. Modified EIC7700_RESET_OFFSET to EIC7700_RESET and eic7700_ register_offset to eic7700_reset. 4. Since EIC7700_RESET_MAX is dropped, used eic7700_reset[] without EIC7700_RESET_MAX. 5. Removed function eswin_reset_set, and put regmap_clear_bits in eswin_reset_assert and regmap_set_bits in eswin_reset_deassert. 6. Added usleep_range in function eswin_reset_reset which was missed. 7. Used ARRAY_SIZE(eic7700_reset) for data->rcdev.nr_resets. 8. Use builtin_platform_driver, because reset driver is a reset controller for SoC. Removed eswin_reset_init function. 9. Modified eswin_reset_* to eic7700_reset_*. Link to v4: https://lore.kernel.org/all/20250715121427.1466-1-dongxuyang@eswincomputing.com/ v3 -> v4: 1. Add 'const' for the definition. It is 'const struct of_phandle_ args *reset_spec = data;'. 2. Modify copyright year from 2024 to 2025. 3. Included "eswin,eic7700-reset.h" in reset driver. 4. Added mapping table for reset IDs. 5. Removed of_xlate and idr functions as we are using IDs from DTS. 6. Removed .remove function. Link to v3: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ v2 -> v3: 1. Change syscon_node_to_regmap() to MMIO regmap functions, because dropped syscon. 2. Add BIT() in function eswin_reset_set() to shift the reset control indices. 3. Remove forced type conversions from function eswin_reset_of_ xlate_lookup_id(). Link to v2: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ v1 -> v2: 1. Modify the code according to the suggestions. 2. Use eswin_reset_assert() and eswin_reset_deassert in function eswin_reset_reset(). 3. Place RESET_EIC7700 in Kconfig and Makefile in order. 4. Use dev_err_probe() in probe function. Link to v1: https://lore.kernel.org/all/20250619075811.1230-1-dongxuyang@eswincomputing.com/ Xuyang Dong (2): dt-bindings: reset: eswin: Documentation for eic7700 SoC reset: eswin: Add eic7700 reset driver .../bindings/reset/eswin,eic7700-reset.yaml | 42 ++ drivers/reset/Kconfig | 10 + drivers/reset/Makefile | 1 + drivers/reset/reset-eic7700.c | 428 ++++++++++++++++++ .../dt-bindings/reset/eswin,eic7700-reset.h | 298 ++++++++++++ 5 files changed, 779 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml create mode 100644 drivers/reset/reset-eic7700.c create mode 100644 include/dt-bindings/reset/eswin,eic7700-reset.h -- 2.17.1