{"id":2218710,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2218710/?format=json","project":{"id":35,"url":"http://patchwork.ozlabs.org/api/1.0/projects/35/?format=json","name":"Linux I2C development","link_name":"linux-i2c","list_id":"linux-i2c.vger.kernel.org","list_email":"linux-i2c@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260401180648.337834-4-adilov@disroot.org>","date":"2026-04-01T18:06:43","name":"[v6,3/8] i2c: rtl9300: introduce F_BUSY to the reg_fields struct","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"853f9133468369b981c7ea6fef2a45da6938d982","submitter":{"id":92795,"url":"http://patchwork.ozlabs.org/api/1.0/people/92795/?format=json","name":"Rustam Adilov","email":"adilov@disroot.org"},"delegate":{"id":149066,"url":"http://patchwork.ozlabs.org/api/1.0/users/149066/?format=json","username":"cazzacarna","first_name":"Andi","last_name":"Shyti","email":"andi.shyti@kernel.org"},"mbox":"http://patchwork.ozlabs.org/project/linux-i2c/patch/20260401180648.337834-4-adilov@disroot.org/mbox/","series":[{"id":498375,"url":"http://patchwork.ozlabs.org/api/1.0/series/498375/?format=json","date":"2026-04-01T18:06:41","name":"i2c: rtl9300: support for RTL9607C I2C controller","version":6,"mbox":"http://patchwork.ozlabs.org/series/498375/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2218710/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=disroot.org header.i=@disroot.org header.a=rsa-sha256\n header.s=mail header.b=e2WbuLd6;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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Wed, 1 Apr 2026 20:07:19 +0200 (CEST)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775066843; cv=none;\n b=RncRFwnZ2FVwYxSS/0nScmc9CTRsYTabRjgjHVqzV2QoLCaZz/T8fM5ToqZzT2Nf8z0USPiblHBzEPc944RplobtDpjWk9FnS86fekwvWqJsZvLhTHTYOgCLzMJ1nRsRYPaUhYeKSGBYFOthXrzQhSrePaj6y1NAZR+T1LiDyJc=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775066843; c=relaxed/simple;\n\tbh=GwaO3Jgs7I+IjOxIFQXKkawzKx2llBDskSmUtS3EUww=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=Oy6tdJ3aERCmro83daLxSJ4soiYOrJfMjwC9BgoaSsMHrCAfaz4uq91oKBJVh1Wt1lEIyipOsn895UMAagzCJnDoZod9jyNV82tOLwW7F5/hwRIzJrrNosW52Q96dFdRwL6Kh9zP2AffUFkJurlJvxD5FT5GFjtQ2wEkuuvz3fQ=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=disroot.org;\n spf=pass smtp.mailfrom=disroot.org;\n dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org\n header.b=e2WbuLd6; arc=none smtp.client-ip=178.21.23.139","X-Virus-Scanned":"SPAM Filter at disroot.org","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail;\n\tt=1775066839; bh=GwaO3Jgs7I+IjOxIFQXKkawzKx2llBDskSmUtS3EUww=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References;\n\tb=e2WbuLd62v/KW+PNwQeg5FXWeJvXBVG2TAI7viShUpEERWjhShMa4/h8UAjnz03Fc\n\t 1xxCjqomwstCsU8/5aZHRLBvolJryQ1nNWvMccN4pjLZ9LMikiMHYbXtPFqpBIEmmf\n\t TQi7kdIwui180//9fXJV0u7x1/5zxyCpF01/uDGUiokZqcGH8kDnNbNk+ofbFtZWEe\n\t 4mnVQPDunQmOrfU/ltmkB6LBHEzXC2GD/orWY+1Ra9r7gJoH8+neaQUod0YbKosf5R\n\t SdAETr7BnuH8vaasDpptws4Q1DqI2kvbWXz++FEzeuY+XIFZG3yf9/sc1E8g2Z7Kk+\n\t ZJbB0AUYppqyg==","From":"Rustam Adilov ","To":"Chris Packham ,\n\tAndi Shyti ,\n\tRob Herring ,\n\tKrzysztof Kozlowski ,\n\tConor Dooley ,\n\tlinux-i2c@vger.kernel.org,\n\tdevicetree@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org","Cc":"Rustam Adilov ","Subject":"[PATCH v6 3/8] i2c: rtl9300: introduce F_BUSY to the reg_fields\n struct","Date":"Wed, 1 Apr 2026 23:06:43 +0500","Message-ID":"<20260401180648.337834-4-adilov@disroot.org>","In-Reply-To":"<20260401180648.337834-1-adilov@disroot.org>","References":"<20260401180648.337834-1-adilov@disroot.org>","Precedence":"bulk","X-Mailing-List":"linux-i2c@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit"},"content":"In RTL9607C i2c controller the busy check operation is done on the\nseparate bit of the command register as opposed to self clearing\ncommand trigger bit on the rtl9300 and rtl9310 i2c controllers.\n\nIntroduce a new F_BUSY field to the reg_fields struct for that\nand change the regmap read poll function to use F_BUSY\ninstead of I2C_TRIG.\n\nReviewed-by: Chris Packham \nSigned-off-by: Rustam Adilov \n---\n drivers/i2c/busses/i2c-rtl9300.c | 5 ++++-\n 1 file changed, 4 insertions(+), 1 deletion(-)","diff":"diff --git a/drivers/i2c/busses/i2c-rtl9300.c b/drivers/i2c/busses/i2c-rtl9300.c\nindex 2cada6038b44..e40b4692a3fa 100644\n--- a/drivers/i2c/busses/i2c-rtl9300.c\n+++ b/drivers/i2c/busses/i2c-rtl9300.c\n@@ -53,6 +53,7 @@ enum rtl9300_i2c_reg_fields {\n \tF_SCL_SEL,\n \tF_SDA_OUT_SEL,\n \tF_SDA_SEL,\n+\tF_BUSY,\n \n \t/* keep last */\n \tF_NUM_FIELDS\n@@ -262,7 +263,7 @@ static int rtl9300_i2c_do_xfer(struct rtl9300_i2c *i2c, struct rtl9300_i2c_xfer\n \tif (ret)\n \t\treturn ret;\n \n-\tret = regmap_field_read_poll_timeout(i2c->fields[F_I2C_TRIG], val, !val, 100, 100000);\n+\tret = regmap_field_read_poll_timeout(i2c->fields[F_BUSY], val, !val, 100, 100000);\n \tif (ret)\n \t\treturn ret;\n \n@@ -505,6 +506,7 @@ static const struct rtl9300_i2c_drv_data rtl9300_i2c_drv_data = {\n \t\t[F_MEM_ADDR_WIDTH]\t= MST_REG_FIELD(RTL9300_I2C_MST_CTRL2, 2, 3),\n \t\t[F_SCL_FREQ]\t\t= MST_REG_FIELD(RTL9300_I2C_MST_CTRL2, 0, 1),\n \t\t[F_SDA_SEL]\t\t= GLB_REG_FIELD(RTL9300_I2C_MST_GLB_CTRL, 0, 7),\n+\t\t[F_BUSY]\t\t= MST_REG_FIELD(RTL9300_I2C_MST_CTRL1, 0, 0),\n \t},\n \t.select_scl = rtl9300_i2c_select_scl,\n \t.rd_reg = RTL9300_I2C_MST_DATA_WORD0,\n@@ -527,6 +529,7 @@ static const struct rtl9300_i2c_drv_data rtl9310_i2c_drv_data = {\n \t\t[F_I2C_FAIL]\t\t= MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 1, 1),\n \t\t[F_I2C_TRIG]\t\t= MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 0, 0),\n \t\t[F_MEM_ADDR]\t\t= MST_REG_FIELD(RTL9310_I2C_MST_MEMADDR_CTRL, 0, 23),\n+\t\t[F_BUSY]\t\t= MST_REG_FIELD(RTL9310_I2C_MST_CTRL, 0, 0),\n \t},\n \t.select_scl = rtl9310_i2c_select_scl,\n \t.rd_reg = RTL9310_I2C_MST_DATA_CTRL,\n","prefixes":["v6","3/8"]}