Re: [PATCH 1/8] i2c: sprd: Add configurations that support 1Mhz and 3.4Mhz frequencies

From: Yann Sionneau
Date: Thu Aug 17 2023 - 10:07:57 EST


Le 17/08/2023 à 11:45, Huangzheng Lai a écrit :
This patch adds I2C controller driver support for 1Mhz and 3.4Mhz
frequency configurations.
@@ -347,6 +347,10 @@ static void sprd_i2c_set_clk(struct sprd_i2c *i2c_dev, u32 freq)
writel((6 * apb_clk) / 10000000, i2c_dev->base + ADDR_STA0_DVD);
else if (freq == I2C_MAX_STANDARD_MODE_FREQ)
writel((4 * apb_clk) / 1000000, i2c_dev->base + ADDR_STA0_DVD);
+ else if (freq == I2C_MAX_FAST_MODE_PLUS_FREQ)
+ writel((8 * apb_clk) / 10000000, i2c_dev->base + ADDR_STA0_DVD);
+ else if (freq == I2C_MAX_HIGH_SPEED_MODE_FREQ)
+ writel((8 * apb_clk) / 10000000, i2c_dev->base + ADDR_STA0_DVD);
}

Maybe using a switch case could be beneficial to readability instead of a series of if / else if ?

--

Yann