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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Introduce force-update method for assert and deassert interface, which force the write operation in case the read already happens to return the correct value. Signed-off-by: Crystal Guo --- drivers/reset/reset-ti-syscon.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/reset/reset-ti-syscon.c b/drivers/reset/reset-ti-syscon.c index 1c74bcb9a6c3..f4baf78afd14 100644 --- a/drivers/reset/reset-ti-syscon.c +++ b/drivers/reset/reset-ti-syscon.c @@ -57,6 +57,7 @@ struct ti_syscon_reset_data { struct ti_syscon_reset_control *controls; unsigned int nr_controls; bool assert_deassert_together; + bool update_force; }; #define to_ti_syscon_reset_data(rcdev) \ @@ -90,7 +91,10 @@ static int ti_syscon_reset_assert(struct reset_controller_dev *rcdev, mask = BIT(control->assert_bit); value = (control->flags & ASSERT_SET) ? mask : 0x0; - return regmap_update_bits(data->regmap, control->assert_offset, mask, value); + if (data->update_force) + return regmap_write_bits(data->regmap, control->assert_offset, mask, value); + else + return regmap_update_bits(data->regmap, control->assert_offset, mask, value); } /** @@ -121,7 +125,10 @@ static int ti_syscon_reset_deassert(struct reset_controller_dev *rcdev, mask = BIT(control->deassert_bit); value = (control->flags & DEASSERT_SET) ? mask : 0x0; - return regmap_update_bits(data->regmap, control->deassert_offset, mask, value); + if (data->update_force) + return regmap_write_bits(data->regmap, control->deassert_offset, mask, value); + else + return regmap_update_bits(data->regmap, control->deassert_offset, mask, value); } /** @@ -223,6 +230,10 @@ static int ti_syscon_reset_probe(struct platform_device *pdev) data->assert_deassert_together = true; else data->assert_deassert_together = false; + if (of_property_read_bool(np, "update-force")) + data->update_force = true; + else + data->update_force = false; data->rcdev.ops = &ti_syscon_reset_ops; data->rcdev.owner = THIS_MODULE; -- 2.18.0 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8D60C433DF for ; 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Mon, 3 Aug 2020 14:17:11 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 3 Aug 2020 14:17:12 +0800 From: Crystal Guo To: , , Subject: [v2,5/6] reset-controller: ti: Introduce force-update method Date: Mon, 3 Aug 2020 14:15:10 +0800 Message-ID: <20200803061511.29555-6-crystal.guo@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200803061511.29555-1-crystal.guo@mediatek.com> References: <20200803061511.29555-1-crystal.guo@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200803_022718_989179_07FE23D1 X-CRM114-Status: GOOD ( 13.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Crystal Guo , yong.liang@mediatek.com, srv_heupstream@mediatek.com, seiya.wang@mediatek.com, linux-kernel@vger.kernel.org, fan.chen@mediatek.com, linux-mediatek@lists.infradead.org, yingjoe.chen@mediatek.com, stanley.chu@mediatek.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Introduce force-update method for assert and deassert interface, which force the write operation in case the read already happens to return the correct value. Signed-off-by: Crystal Guo --- drivers/reset/reset-ti-syscon.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/reset/reset-ti-syscon.c b/drivers/reset/reset-ti-syscon.c index 1c74bcb9a6c3..f4baf78afd14 100644 --- a/drivers/reset/reset-ti-syscon.c +++ b/drivers/reset/reset-ti-syscon.c @@ -57,6 +57,7 @@ struct ti_syscon_reset_data { struct ti_syscon_reset_control *controls; unsigned int nr_controls; bool assert_deassert_together; + bool update_force; }; #define to_ti_syscon_reset_data(rcdev) \ @@ -90,7 +91,10 @@ static int ti_syscon_reset_assert(struct reset_controller_dev *rcdev, mask = BIT(control->assert_bit); value = (control->flags & ASSERT_SET) ? mask : 0x0; - return regmap_update_bits(data->regmap, control->assert_offset, mask, value); + if (data->update_force) + return regmap_write_bits(data->regmap, control->assert_offset, mask, value); + else + return regmap_update_bits(data->regmap, control->assert_offset, mask, value); } /** @@ -121,7 +125,10 @@ static int ti_syscon_reset_deassert(struct reset_controller_dev *rcdev, mask = BIT(control->deassert_bit); value = (control->flags & DEASSERT_SET) ? mask : 0x0; - return regmap_update_bits(data->regmap, control->deassert_offset, mask, value); + if (data->update_force) + return regmap_write_bits(data->regmap, control->deassert_offset, mask, value); + else + return regmap_update_bits(data->regmap, control->deassert_offset, mask, value); } /** @@ -223,6 +230,10 @@ static int ti_syscon_reset_probe(struct platform_device *pdev) data->assert_deassert_together = true; else data->assert_deassert_together = false; + if (of_property_read_bool(np, "update-force")) + data->update_force = true; + else + data->update_force = false; data->rcdev.ops = &ti_syscon_reset_ops; data->rcdev.owner = THIS_MODULE; -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MIME_BASE64_TEXT,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F29EC433E0 for ; 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X-UUID: 94d591465c1c47f08c5a371fb3fdfdc5-20200803 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1591615903; Mon, 03 Aug 2020 14:17:14 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 3 Aug 2020 14:17:11 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 3 Aug 2020 14:17:12 +0800 From: Crystal Guo To: , , CC: , , , , , , , , , Crystal Guo Subject: [v2,5/6] reset-controller: ti: Introduce force-update method Date: Mon, 3 Aug 2020 14:15:10 +0800 Message-ID: <20200803061511.29555-6-crystal.guo@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200803061511.29555-1-crystal.guo@mediatek.com> References: <20200803061511.29555-1-crystal.guo@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SW50cm9kdWNlIGZvcmNlLXVwZGF0ZSBtZXRob2QgZm9yIGFzc2VydCBhbmQgZGVhc3NlcnQgaW50 ZXJmYWNlLA0Kd2hpY2ggZm9yY2UgdGhlIHdyaXRlIG9wZXJhdGlvbiBpbiBjYXNlIHRoZSByZWFk IGFscmVhZHkgaGFwcGVucw0KdG8gcmV0dXJuIHRoZSBjb3JyZWN0IHZhbHVlLg0KDQpTaWduZWQt b2ZmLWJ5OiBDcnlzdGFsIEd1byA8Y3J5c3RhbC5ndW9AbWVkaWF0ZWsuY29tPg0KLS0tDQogZHJp dmVycy9yZXNldC9yZXNldC10aS1zeXNjb24uYyB8IDE1ICsrKysrKysrKysrKystLQ0KIDEgZmls ZSBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQ0KDQpkaWZmIC0tZ2l0 IGEvZHJpdmVycy9yZXNldC9yZXNldC10aS1zeXNjb24uYyBiL2RyaXZlcnMvcmVzZXQvcmVzZXQt dGktc3lzY29uLmMNCmluZGV4IDFjNzRiY2I5YTZjMy4uZjRiYWY3OGFmZDE0IDEwMDY0NA0KLS0t IGEvZHJpdmVycy9yZXNldC9yZXNldC10aS1zeXNjb24uYw0KKysrIGIvZHJpdmVycy9yZXNldC9y ZXNldC10aS1zeXNjb24uYw0KQEAgLTU3LDYgKzU3LDcgQEAgc3RydWN0IHRpX3N5c2Nvbl9yZXNl dF9kYXRhIHsNCiAJc3RydWN0IHRpX3N5c2Nvbl9yZXNldF9jb250cm9sICpjb250cm9sczsNCiAJ dW5zaWduZWQgaW50IG5yX2NvbnRyb2xzOw0KIAlib29sIGFzc2VydF9kZWFzc2VydF90b2dldGhl cjsNCisJYm9vbCB1cGRhdGVfZm9yY2U7DQogfTsNCiANCiAjZGVmaW5lIHRvX3RpX3N5c2Nvbl9y ZXNldF9kYXRhKHJjZGV2KQlcDQpAQCAtOTAsNyArOTEsMTAgQEAgc3RhdGljIGludCB0aV9zeXNj b25fcmVzZXRfYXNzZXJ0KHN0cnVjdCByZXNldF9jb250cm9sbGVyX2RldiAqcmNkZXYsDQogCW1h c2sgPSBCSVQoY29udHJvbC0+YXNzZXJ0X2JpdCk7DQogCXZhbHVlID0gKGNvbnRyb2wtPmZsYWdz ICYgQVNTRVJUX1NFVCkgPyBtYXNrIDogMHgwOw0KIA0KLQlyZXR1cm4gcmVnbWFwX3VwZGF0ZV9i aXRzKGRhdGEtPnJlZ21hcCwgY29udHJvbC0+YXNzZXJ0X29mZnNldCwgbWFzaywgdmFsdWUpOw0K KwlpZiAoZGF0YS0+dXBkYXRlX2ZvcmNlKQ0KKwkJcmV0dXJuIHJlZ21hcF93cml0ZV9iaXRzKGRh dGEtPnJlZ21hcCwgY29udHJvbC0+YXNzZXJ0X29mZnNldCwgbWFzaywgdmFsdWUpOw0KKwllbHNl DQorCQlyZXR1cm4gcmVnbWFwX3VwZGF0ZV9iaXRzKGRhdGEtPnJlZ21hcCwgY29udHJvbC0+YXNz ZXJ0X29mZnNldCwgbWFzaywgdmFsdWUpOw0KIH0NCiANCiAvKioNCkBAIC0xMjEsNyArMTI1LDEw IEBAIHN0YXRpYyBpbnQgdGlfc3lzY29uX3Jlc2V0X2RlYXNzZXJ0KHN0cnVjdCByZXNldF9jb250 cm9sbGVyX2RldiAqcmNkZXYsDQogCW1hc2sgPSBCSVQoY29udHJvbC0+ZGVhc3NlcnRfYml0KTsN CiAJdmFsdWUgPSAoY29udHJvbC0+ZmxhZ3MgJiBERUFTU0VSVF9TRVQpID8gbWFzayA6IDB4MDsN CiANCi0JcmV0dXJuIHJlZ21hcF91cGRhdGVfYml0cyhkYXRhLT5yZWdtYXAsIGNvbnRyb2wtPmRl YXNzZXJ0X29mZnNldCwgbWFzaywgdmFsdWUpOw0KKwlpZiAoZGF0YS0+dXBkYXRlX2ZvcmNlKQ0K KwkJcmV0dXJuIHJlZ21hcF93cml0ZV9iaXRzKGRhdGEtPnJlZ21hcCwgY29udHJvbC0+ZGVhc3Nl cnRfb2Zmc2V0LCBtYXNrLCB2YWx1ZSk7DQorCWVsc2UNCisJCXJldHVybiByZWdtYXBfdXBkYXRl X2JpdHMoZGF0YS0+cmVnbWFwLCBjb250cm9sLT5kZWFzc2VydF9vZmZzZXQsIG1hc2ssIHZhbHVl KTsNCiB9DQogDQogLyoqDQpAQCAtMjIzLDYgKzIzMCwxMCBAQCBzdGF0aWMgaW50IHRpX3N5c2Nv bl9yZXNldF9wcm9iZShzdHJ1Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2KQ0KIAkJZGF0YS0+YXNz ZXJ0X2RlYXNzZXJ0X3RvZ2V0aGVyID0gdHJ1ZTsNCiAJZWxzZQ0KIAkJZGF0YS0+YXNzZXJ0X2Rl YXNzZXJ0X3RvZ2V0aGVyID0gZmFsc2U7DQorCWlmIChvZl9wcm9wZXJ0eV9yZWFkX2Jvb2wobnAs ICJ1cGRhdGUtZm9yY2UiKSkNCisJCWRhdGEtPnVwZGF0ZV9mb3JjZSA9IHRydWU7DQorCWVsc2UN CisJCWRhdGEtPnVwZGF0ZV9mb3JjZSA9IGZhbHNlOw0KIA0KIAlkYXRhLT5yY2Rldi5vcHMgPSAm dGlfc3lzY29uX3Jlc2V0X29wczsNCiAJZGF0YS0+cmNkZXYub3duZXIgPSBUSElTX01PRFVMRTsN Ci0tIA0KMi4xOC4wDQo=