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From 4bdab0ea008113dda4e001ab8d6863945000c1b2 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 11 Mar 2021 14:58:26 +0000
Subject: [PATCH 21/21] mmc: mtk-sd: don't ignore max-frequency from device
tree
commit e58e68d9 ("mmc: mtk-sd: assign plat->cfg.f_max with a correct value")
wrongly assumed that plat->cfg.f_max is always unset at the time
mscd_drv_probe() is run. This is not true in case max-frequency being
defined in device tree, as it is then already set by mmc_of_parser()
in msdc_of_to_plat().
Only set plat->cfg.f_max to the default maximum value in case it is
not already set to a sane value.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/mmc/mtk-sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -1644,7 +1644,8 @@ static int msdc_drv_probe(struct udevice
if (cfg->f_min < MIN_BUS_CLK)
cfg->f_min = MIN_BUS_CLK;
- cfg->f_max = host->src_clk_freq;
+ if (cfg->f_max < cfg->f_min || cfg->f_max > host->src_clk_freq)
+ cfg->f_max = host->src_clk_freq;
cfg->b_max = 1024;
cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
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