mmc: omap_hsmmc: correct max value of clkd (ed164182) · Commits · 戴 / test

clock divisor can take a max value of 1023. Update code so that card init can be handled at f_min even at higher IP clock frequencies from which clock to the card is derived. Signed-off-by:

Balaji T K <balajitk@ti.com> Signed-off-by:

Chris Ball <cjb@laptop.org>

drivers/mmc/host/omap_hsmmc.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -75,6 +75,7 @@
		#define ICE 0x1
		#define ICS 0x2
		#define CEN (1 << 2)
		#define CLKD_MAX 0x3FF /* max clock divisor: 1023 */
		#define CLKD_MASK 0x0000FFC0
		#define CLKD_SHIFT 6
		#define DTO_MASK 0x000F0000
		@@ -497,8 +498,8 @@ static u16 calc_divisor(struct omap_hsmmc_host host, struct mmc_ios ios)

		if (ios->clock) {
		dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock);
		if (dsor > 250)
		dsor = 250;
		if (dsor > CLKD_MAX)
		dsor = CLKD_MAX;
		}

		return dsor;

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