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Mon, 09 Dec 2024 08:05:03 -0800 (PST) Received: from toaster.baylibre.com ([2a01:e0a:3c5:5fb1:432b:3c3e:b17a:687a]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-434f3d89b75sm61459015e9.15.2024.12.09.08.05.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2024 08:05:02 -0800 (PST) From: Jerome Brunet Date: Mon, 09 Dec 2024 17:04:34 +0100 Subject: [PATCH 1/2] reset: amlogic: aux: get regmap through parent device MIME-Version: 1.0 Message-Id: <20241209-meson-rst-aux-rework-v1-1-d2afb69cc72e@baylibre.com> References: <20241209-meson-rst-aux-rework-v1-0-d2afb69cc72e@baylibre.com> In-Reply-To: <20241209-meson-rst-aux-rework-v1-0-d2afb69cc72e@baylibre.com> To: Philipp Zabel , Neil Armstrong , Kevin Hilman , Martin Blumenstingl , Jiucheng Xu , Stephen Boyd , Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Jerome Brunet X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2997; 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fpr=F29F26CF27BAE1A9719AE6BDC3C92AAF3E60AED9 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241209_080504_702690_B83CA64E X-CRM114-Status: GOOD ( 13.83 ) 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 Get regmap directly from the parent device registering the auxiliary reset driver, instead of using device data attached to the auxiliary device. This simplifies the registration a bit. Suggested-by: Stephen Boyd Signed-off-by: Jerome Brunet --- drivers/reset/amlogic/reset-meson-aux.c | 36 +++++++++++---------------------- 1 file changed, 12 insertions(+), 24 deletions(-) diff --git a/drivers/reset/amlogic/reset-meson-aux.c b/drivers/reset/amlogic/reset-meson-aux.c index 4b422ae5fcd209e1041e9a793d980627203d00b0..0fc1788eb7a83810ac524facfe09b5fa032573c3 100644 --- a/drivers/reset/amlogic/reset-meson-aux.c +++ b/drivers/reset/amlogic/reset-meson-aux.c @@ -18,14 +18,6 @@ static DEFINE_IDA(meson_rst_aux_ida); -struct meson_reset_adev { - struct auxiliary_device adev; - struct regmap *map; -}; - -#define to_meson_reset_adev(_adev) \ - container_of((_adev), struct meson_reset_adev, adev) - static const struct meson_reset_param meson_a1_audio_param = { .reset_ops = &meson_reset_toggle_ops, .reset_num = 32, @@ -72,10 +64,13 @@ static int meson_reset_aux_probe(struct auxiliary_device *adev, { const struct meson_reset_param *param = (const struct meson_reset_param *)(id->driver_data); - struct meson_reset_adev *raux = - to_meson_reset_adev(adev); + struct regmap *map; + + map = dev_get_regmap(adev->dev.parent, NULL); + if (!map) + return -EINVAL; - return meson_reset_controller_register(&adev->dev, raux->map, param); + return meson_reset_controller_register(&adev->dev, map, param); } static struct auxiliary_driver meson_reset_aux_driver = { @@ -87,11 +82,9 @@ module_auxiliary_driver(meson_reset_aux_driver); static void meson_rst_aux_release(struct device *dev) { struct auxiliary_device *adev = to_auxiliary_dev(dev); - struct meson_reset_adev *raux = - to_meson_reset_adev(adev); ida_free(&meson_rst_aux_ida, adev->id); - kfree(raux); + kfree(adev); } static void meson_rst_aux_unregister_adev(void *_adev) @@ -103,24 +96,19 @@ static void meson_rst_aux_unregister_adev(void *_adev) } int devm_meson_rst_aux_register(struct device *dev, - struct regmap *map, const char *adev_name) { - struct meson_reset_adev *raux; struct auxiliary_device *adev; int ret; - raux = kzalloc(sizeof(*raux), GFP_KERNEL); - if (!raux) + adev = kzalloc(sizeof(*adev), GFP_KERNEL); + if (!adev) return -ENOMEM; ret = ida_alloc(&meson_rst_aux_ida, GFP_KERNEL); if (ret < 0) - goto raux_free; - - raux->map = map; + goto adev_free; - adev = &raux->adev; adev->id = ret; adev->name = adev_name; adev->dev.parent = dev; @@ -142,8 +130,8 @@ int devm_meson_rst_aux_register(struct device *dev, ida_free: ida_free(&meson_rst_aux_ida, adev->id); -raux_free: - kfree(raux); +adev_free: + kfree(adev); return ret; } EXPORT_SYMBOL_GPL(devm_meson_rst_aux_register);