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Wed, 6 Mar 2019 15:12:17 +0000 (GMT) Received: from SFHDAG3NODE1.st.com (10.75.127.7) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 6 Mar 2019 16:12:16 +0100 Received: from SFHDAG3NODE1.st.com ([fe80::1166:1abb:aad4:5f86]) by SFHDAG3NODE1.st.com ([fe80::1166:1abb:aad4:5f86%20]) with mapi id 15.00.1347.000; Wed, 6 Mar 2019 16:12:16 +0100 From: Bich HEMON To: Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre TORGUE , Pierre Yves MORDRET , Wolfram Sang , "linux-i2c@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-stm32@st-md-mailman.stormreply.com" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: [PATCH] i2c: i2c-stm32f7: Fix SDADEL minimum formula Thread-Topic: [PATCH] i2c: i2c-stm32f7: Fix SDADEL minimum formula Thread-Index: AQHU1C78TFNtpaUoH0S1cdbw5UeFxQ== Date: Wed, 6 Mar 2019 15:12:16 +0000 Message-ID: <1551885125-22295-1-git-send-email-bich.hemon@st.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.51] MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-06_10:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190306_071223_574658_498DB9B7 X-CRM114-Status: GOOD ( 11.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bich HEMON Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Nicolas Le Bayon It conforms with Reference Manual I2C timing section. Signed-off-by: Nicolas Le Bayon Signed-off-by: Bich Hemon --- drivers/i2c/busses/i2c-stm32f7.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 13e1213..4284fc9 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -432,7 +432,7 @@ static int stm32f7_i2c_compute_timing(struct stm32f7_i2c_dev *i2c_dev, STM32F7_I2C_ANALOG_FILTER_DELAY_MAX : 0); dnf_delay = setup->dnf * i2cclk; - sdadel_min = setup->fall_time - i2c_specs[setup->speed].hddat_min - + sdadel_min = i2c_specs[setup->speed].hddat_min + setup->fall_time - af_delay_min - (setup->dnf + 3) * i2cclk; sdadel_max = i2c_specs[setup->speed].vddat_max - setup->rise_time - -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel