Message ID | 1525968837-13381-3-git-send-email-austinwc@codeaurora.org (mailing list archive) |
---|---|
State | Not Applicable, archived |
Delegated to: | Andy Gross |
Headers | show |
On Thu, May 10, 2018 at 10:13:55AM -0600, Austin Christ wrote: > Previously the QUP driver limited operation mode to I2C Fast Mode. Add > Fast Mode Plus functionality by raising SCL limit from 400kHz to 1MHz. > > Signed-off-by: Austin Christ <austinwc@codeaurora.org> > Reviewed-by: Sricharan R <sricharan@codeaurora.org> > --- Looks good to me. Reviewed-by: Andy Gross <andy.gross@linaro.org> -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c index c024f85..ce5f215 100644 --- a/drivers/i2c/busses/i2c-qup.c +++ b/drivers/i2c/busses/i2c-qup.c @@ -136,8 +136,13 @@ */ #define TOUT_MIN 2 +/* I2C Frequency Modes */ +#define I2C_STANDARD_FREQ 100000 +#define I2C_FAST_MODE_FREQ 400000 +#define I2C_FAST_MODE_PLUS_FREQ 1000000 + /* Default values. Use these if FW query fails */ -#define DEFAULT_CLK_FREQ 100000 +#define DEFAULT_CLK_FREQ I2C_STANDARD_FREQ #define DEFAULT_SRC_CLK 20000000 /* @@ -1745,8 +1750,8 @@ static int qup_i2c_probe(struct platform_device *pdev) } nodma: - /* We support frequencies up to FAST Mode (400KHz) */ - if (!clk_freq || clk_freq > 400000) { + /* We support frequencies up to FAST Mode Plus (1MHz) */ + if (!clk_freq || clk_freq > I2C_FAST_MODE_PLUS_FREQ) { dev_err(qup->dev, "clock frequency not supported %d\n", clk_freq); return -EINVAL;