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[114.34.112.171]) by smtp.gmail.com with ESMTPSA id c6sm20069132pgc.18.2020.03.02.01.01.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 02 Mar 2020 01:01:38 -0800 (PST) From: Jun Chen To: u-boot@lists.denx.de Cc: Jun Chen , Jun Chen , Heiko Schocher , Simon Glass Subject: [PATCH 4/4] i2c: designware_i2c: add 'hs_hcnt' and 'hs_lcnt' for high speed Date: Mon, 2 Mar 2020 16:58:57 +0800 Message-Id: <1583139537-65602-5-git-send-email-ptchentw@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1583139537-65602-1-git-send-email-ptchentw@gmail.com> References: <1583139537-65602-1-git-send-email-ptchentw@gmail.com> X-Mailman-Approved-At: Mon, 02 Mar 2020 15:48:00 +0100 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de X-Virus-Status: Clean From: Jun Chen Add support for high speed if scl_sda_cfg exist. Signed-off-by: Jun Chen Signed-off-by: Jun Chen --- drivers/i2c/designware_i2c.c | 3 +++ drivers/i2c/designware_i2c.h | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index 74aef77..088a6f3 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -240,6 +240,9 @@ static int calc_bus_speed(struct dw_i2c *priv, int speed, ulong bus_clk, if (i2c_spd == IC_SPEED_MODE_STANDARD) { config->scl_hcnt = scl_sda_cfg->ss_hcnt; config->scl_lcnt = scl_sda_cfg->ss_lcnt; + } else if (i2c_spd == IC_SPEED_MODE_HIGH) { + config->scl_hcnt = scl_sda_cfg->hs_hcnt; + config->scl_lcnt = scl_sda_cfg->hs_lcnt; } else { config->scl_hcnt = scl_sda_cfg->fs_hcnt; config->scl_lcnt = scl_sda_cfg->fs_lcnt; diff --git a/drivers/i2c/designware_i2c.h b/drivers/i2c/designware_i2c.h index 5a04ce5..7ee2361 100644 --- a/drivers/i2c/designware_i2c.h +++ b/drivers/i2c/designware_i2c.h @@ -146,15 +146,19 @@ struct i2c_regs { * * @ss_hcnt: Standard speed high time in ns * @fs_hcnt: Fast speed high time in ns + * @hs_hcnt: High speed high time in ns * @ss_lcnt: Standard speed low time in ns * @fs_lcnt: Fast speed low time in ns + * @hs_lcnt: High speed low time in ns * @sda_hold: SDA hold time */ struct dw_scl_sda_cfg { u32 ss_hcnt; u32 fs_hcnt; + u32 hs_hcnt; u32 ss_lcnt; u32 fs_lcnt; + u32 hs_lcnt; u32 sda_hold; };