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stm32/sdmmc: remove cast no longer allowed on latest nightly due to nonexhaustive enum.

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This commit is contained in:
Dario Nieuwenhuis 2022-08-17 14:44:18 +02:00
parent 13b1ca1eb6
commit 72cd015c1a
1 changed files with 8 additions and 1 deletions
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9
embassy-stm32/src/sdmmc/mod.rs
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@ -999,10 +999,17 @@ impl SdmmcInner {
fn clkcr_set_clkdiv(&self, freq: u32, width: BusWidth, ker_ck: Hertz, clock: &mut Hertz) -> Result<(), Error> {
let regs = self.0;
let width_u32 = match width {
BusWidth::One => 1u32,
BusWidth::Four => 4u32,
BusWidth::Eight => 8u32,
_ => panic!("Invalid Bus Width"),
};
let (clkdiv, new_clock) = clk_div(ker_ck, freq)?;
// Enforce AHB and SDMMC_CK clock relation. See RM0433 Rev 7
// Section 55.5.8
let sdmmc_bus_bandwidth = new_clock.0 * (width as u32);
let sdmmc_bus_bandwidth = new_clock.0 * width_u32;
assert!(ker_ck.0 > 3 * sdmmc_bus_bandwidth / 32);
*clock = new_clock;